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000
FXUS66 KOTX 280021
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
521 PM PDT FRI MAR 27 2015

.SYNOPSIS...
A fast moving cold front will arrive tonight bringing widespread
showers, gusty winds, and the potential for thunderstorms to
southeast Washington and portions of the Idaho Panhandle. Saturday
will be quite windy with gusts of 40 mph possible over Palouse,
West Plains, and Upper Columbia Basin. The weather Sunday and
Monday should be mild and relatively dry. Another fast moving
front on Tuesday will bring more showers and wind.

&&

.DISCUSSION...
Tonight and Sat...

Thunder and showers: We backed off the pcpn and thunder potential
through late afternoon to early evening as it looks like much of
the surface will remain capped. Showers and thunder will then
rapidly develop and spread NE across much of Ern and N Idaho as
the cold front and upper trough (currently just offshore) moves
inland. Convective mode: Shear and thermodynamic profiles show the
main threat will be very gusty winds, with any thunderstorm
outflow augmenting the already strong synoptic-scale pressure
gradient dry slot winds overnight. Severe gusts (gust to 58 mph)
is a possibility, but not likely with the strongest embedded
thunderstorms. Steering flow for these cells alone should be at
least 30-35 kts with this embedded thunder. Small hail is
possible. The challenge tonight will be how much thunder is
generated across Nrn Wa late tonight as the vort max (and
associated cold pool and steep mid-level lapse rates) translate
east rather quickly. If this was occurring during peak heating,
thunder would be a certainty.

Winds: We`ll issue a wind advisory with the passage of the cold
front this evening through midday Sat for especially the Palouse
area as a significant mid-level dry slot surges across Ern Wa.
Initially the heavy showers and thunder will help to mix stronger
winds aloft (35-40 kts) to the sfc, then strengthening pressure
gradients and cold advection overnight following fropa will help
to transfer 45-50kt winds aloft in a nearly unidirectional
westerly vertical wind profile.bz

Saturday night through Friday...A gulf of Alaska area of low
pressure juxtaposed against a weak ridge of high pressure with
axis placement generally to the east of Northern Idaho allows for
a persistent flux of moisture through an elongated baroclinic band
located between the low and the ridge. The placement of the
baroclinic band is far enough to the north through Monday so as to
allow for a dry forecast for most locations with the exception of
locations close to the British Columbia Border and the North
Cascade Crest. Another cold front wipes out the ridge Monday night
into Tuesday. As it does this is will spread precipitation from
west to east and allow for Windy Conditions during and after its
passage Tuesday. From about Tuesday night on Through Thursday the
jet stream straddles the forecast area along the southern Border
which allows for a conditionally unstable airmass and associated
cold pool aloft to overhang Eastern Washington and Northern Idaho
through most if not all of this interval which allows for a cool
forecast with mainly diurnally driven showers and the possibility
of some frost with more widespread temperatures just below
freezing Wednesday night. By Friday the trof aloft exits to the
east and leaves a more flat zonal flow with the jet stream in
closer proximity which would suggest a further decrease in pops
but perhaps a return of breezy conditions as the jet stream gets
positioned closer overhead of Eastern Washington and Northern
Idaho. /Pelatti

&&

.AVIATION...
00Z TAFS: A vigorous cold front will sweep across the region
overnight. The atmosphere will gradually destabilize through this
evening with strong forcing along the front expected to break the
cap holding down convection this afternoon. Best instability will
be located from northeast OR, southeast WA and into the Central
Panhandle Mtns. Confidence is high that thunderstorms will develop
this evening along this axis and impact the KLWS TAF site. KPUW
will also see a chance for thunderstorms this evening, but
confidence is slightly lower. Moderate to heavy showers will then
blossom ahead of the front east of a line from KEPI to KOMK.
These showers may result in brief MVFR cigs/vis into the early
morning hours on Saturday. Gusty westerly winds will also
accompany the front overnight and continue into Saturday
afternoon. /SVH

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  60  39  59  40  62 /  80  40   0  10  10  10
Coeur d`Alene  45  59  38  59  38  63 /  90  70   0  10  10  10
Pullman        46  58  40  58  41  64 /  90  40   0  10  10  10
Lewiston       51  64  41  63  42  68 /  90  20   0   0  10  10
Colville       44  63  39  60  39  63 /  70  60   0  10  10  10
Sandpoint      45  56  38  57  36  62 / 100  90   0  10  10  10
Kellogg        42  53  36  56  38  60 / 100 100   0  10  10  10
Moses Lake     48  65  40  65  39  67 /  10  10   0   0  10  10
Wenatchee      48  65  43  65  44  68 /  10  10   0  10  10  10
Omak           44  65  39  64  39  66 /  40  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Idaho Palouse.

WA...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Lower Garfield and Asotin Counties-Washington Palouse.

&&

$$




000
FXUS66 KOTX 280021
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
521 PM PDT FRI MAR 27 2015

.SYNOPSIS...
A fast moving cold front will arrive tonight bringing widespread
showers, gusty winds, and the potential for thunderstorms to
southeast Washington and portions of the Idaho Panhandle. Saturday
will be quite windy with gusts of 40 mph possible over Palouse,
West Plains, and Upper Columbia Basin. The weather Sunday and
Monday should be mild and relatively dry. Another fast moving
front on Tuesday will bring more showers and wind.

&&

.DISCUSSION...
Tonight and Sat...

Thunder and showers: We backed off the pcpn and thunder potential
through late afternoon to early evening as it looks like much of
the surface will remain capped. Showers and thunder will then
rapidly develop and spread NE across much of Ern and N Idaho as
the cold front and upper trough (currently just offshore) moves
inland. Convective mode: Shear and thermodynamic profiles show the
main threat will be very gusty winds, with any thunderstorm
outflow augmenting the already strong synoptic-scale pressure
gradient dry slot winds overnight. Severe gusts (gust to 58 mph)
is a possibility, but not likely with the strongest embedded
thunderstorms. Steering flow for these cells alone should be at
least 30-35 kts with this embedded thunder. Small hail is
possible. The challenge tonight will be how much thunder is
generated across Nrn Wa late tonight as the vort max (and
associated cold pool and steep mid-level lapse rates) translate
east rather quickly. If this was occurring during peak heating,
thunder would be a certainty.

Winds: We`ll issue a wind advisory with the passage of the cold
front this evening through midday Sat for especially the Palouse
area as a significant mid-level dry slot surges across Ern Wa.
Initially the heavy showers and thunder will help to mix stronger
winds aloft (35-40 kts) to the sfc, then strengthening pressure
gradients and cold advection overnight following fropa will help
to transfer 45-50kt winds aloft in a nearly unidirectional
westerly vertical wind profile.bz

Saturday night through Friday...A gulf of Alaska area of low
pressure juxtaposed against a weak ridge of high pressure with
axis placement generally to the east of Northern Idaho allows for
a persistent flux of moisture through an elongated baroclinic band
located between the low and the ridge. The placement of the
baroclinic band is far enough to the north through Monday so as to
allow for a dry forecast for most locations with the exception of
locations close to the British Columbia Border and the North
Cascade Crest. Another cold front wipes out the ridge Monday night
into Tuesday. As it does this is will spread precipitation from
west to east and allow for Windy Conditions during and after its
passage Tuesday. From about Tuesday night on Through Thursday the
jet stream straddles the forecast area along the southern Border
which allows for a conditionally unstable airmass and associated
cold pool aloft to overhang Eastern Washington and Northern Idaho
through most if not all of this interval which allows for a cool
forecast with mainly diurnally driven showers and the possibility
of some frost with more widespread temperatures just below
freezing Wednesday night. By Friday the trof aloft exits to the
east and leaves a more flat zonal flow with the jet stream in
closer proximity which would suggest a further decrease in pops
but perhaps a return of breezy conditions as the jet stream gets
positioned closer overhead of Eastern Washington and Northern
Idaho. /Pelatti

&&

.AVIATION...
00Z TAFS: A vigorous cold front will sweep across the region
overnight. The atmosphere will gradually destabilize through this
evening with strong forcing along the front expected to break the
cap holding down convection this afternoon. Best instability will
be located from northeast OR, southeast WA and into the Central
Panhandle Mtns. Confidence is high that thunderstorms will develop
this evening along this axis and impact the KLWS TAF site. KPUW
will also see a chance for thunderstorms this evening, but
confidence is slightly lower. Moderate to heavy showers will then
blossom ahead of the front east of a line from KEPI to KOMK.
These showers may result in brief MVFR cigs/vis into the early
morning hours on Saturday. Gusty westerly winds will also
accompany the front overnight and continue into Saturday
afternoon. /SVH

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  60  39  59  40  62 /  80  40   0  10  10  10
Coeur d`Alene  45  59  38  59  38  63 /  90  70   0  10  10  10
Pullman        46  58  40  58  41  64 /  90  40   0  10  10  10
Lewiston       51  64  41  63  42  68 /  90  20   0   0  10  10
Colville       44  63  39  60  39  63 /  70  60   0  10  10  10
Sandpoint      45  56  38  57  36  62 / 100  90   0  10  10  10
Kellogg        42  53  36  56  38  60 / 100 100   0  10  10  10
Moses Lake     48  65  40  65  39  67 /  10  10   0   0  10  10
Wenatchee      48  65  43  65  44  68 /  10  10   0  10  10  10
Omak           44  65  39  64  39  66 /  40  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Idaho Palouse.

WA...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Lower Garfield and Asotin Counties-Washington Palouse.

&&

$$




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000
FXUS66 KPQR 272337 AAA
AFDPQR

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND
437 PM PDT FRI MAR 27 2015

UPDATED SYNOPSIS

.SYNOPSIS...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY...A FRONT CURRENTLY NEAR 130W
WILL WORK ITS WAY INTO NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS
EVENING. IT APPEARS THE FIRST RAIN SHOWERS SHOULD ARRIVE ON THE COAST
BETWEEN 4 PM AND 6 PM AND BETWEEN 6 PM AND 9 PM ACROSS THE WILLAMETTE
VALLEY...AND PROBABLY CLOSER TO 9 TO 10 PM FOR HOOD RIVER. POST
FRONTAL SHOWERS CURRENTLY PUSHING EAST OF 130W WILL SPREAD INTO THE
REGION LATER TONIGHT. HOWEVER...A LOWERING SUBSIDENCE INVERSION AND
CONTINUING WESTERLY FLOW WILL INCREASINGLY LIMIT SHOWER ACTIVITY TO
THE COAST...COAST RANGE AND CASCADES LATE TONIGHT AND SATURDAY
MORNING.

RELATIVELY FLAT RIDGING WILL BUILD INTO THE REGION SATURDAY AND FOR
MOST OF THE REGION BRING RELATIVELY DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR NORTHERN PORTIONS OF THE CWA WILL
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH. IN ADDITION...BOTH THE GFS AND EC SUGGEST OUR FAR NORTHWEST
ZONES MAY GET CLIPPED BY A LIGHT RAIN SHOWER OR TWO DURING THIS
PERIOD. /NEUMAN


.LONG TERM...MONDAY NIGHT THROUGH FRIDAY...MODELS CONTINUE TO SUGGEST
A FRONT WILL BRING RAIN AND LOWERING SNOW LEVELS MONDAY NIGHT AND
TUESDAY. A RATHER ACTIVE WESTERLY TO NORTHWESTERLY FLOW PATTERN LOOKS
TO LINGER ACROSS THE AREA FOR MUCH OF NEXT WEEK. THERE MAY BE A BREAK
IN THE ACTION TOWARDS NEXT THURSDAY SO POPS WERE TRENDED DOWN DURING
THIS PERIOD...BUT OTHERWISE POPS WERE NUDGED UPWARDS INTO THE HIGH
END CHANCE TO LIKELY RANGE FOR THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO HOVER BETWEEN 3K AND 4KFT FOR MUCH OF NEXT WEEK.
AB/NEUMAN

&&

.AVIATION...MARINE STRATUS PUSHED UP THE COAST AND INTO THE
SOUTHERN AND CENTRAL WILLAMETTE VALLEY THIS MORNING. THE STRATUS
HAS MOSTLY BURNED OFF OVER THE VALLEY...BUT WILL LIKELY REMAIN IN
PLACE THROUGH THE REST OF THE AFTERNOON AT THE COAST. A COLD FRONT
JUST OFFSHORE WILL SPREAD RAIN ONTO THE COAST AFTER 00Z...THEN
SPREAD INLAND THIS EVENING. THE FRONT SHOULD PUSH EAST OF THE
VALLEY BY 06Z TO 09Z. EXPECT A PERIOD OF MVFR CIGS WITH THE
FRONT. RAIN WILL TAPER TO SHOWERS BEHIND THE FRONT OVERNIGHT INTO
SAT MORNING. EXPECT MAINLY VFR CONDITIONS BEHIND THE FRONT WITH
OCCASIONAL MVFR CONDITIONS DURING HEAVIER SHOWER ACTIVITY. EXPECT
IMPROVING CONDITIONS SAT AFTERNOON...WITH VFR AND MAINLY DRY
CONDITIONS.

KPDX AND APPROACHES...VFR TO PERSIST THROUGH THE AFTERNOON AND
EARLY EVENING. A COLD FRONT WILL SPREAD RAIN AND LIKELY MVFR CIGS
FOR A PERIOD BETWEEN 02Z AND 07Z. EXPECT SHOWERS TO CONTINUE
OVERNIGHT INTO SAT MORNING BEHIND THE FRONT. CONDITIONS SHOULD
REMAIN MOSTLY VFR BEHIND THE FRONT...WITH OCCASIONAL MVFR DURING
HEAVIER SHOWERS. PYLE

&&

.MARINE...A COLD FRONT IS NEARING THE COASTAL WATERS THIS
AFTERNOON. SOUTHERLY WINDS ARE BEGINNING TO PICK UP AHEAD OF THE
FRONT...WITH BUOY 29 NOW SEEING GUSTS OF 20 TO 25 KT. WINDS SHOULD
INCREASE FURTHER LATER THIS AFTERNOON AND THIS EVENING. THE FRONT
WILL MOVE ONSHORE BY AROUND 6 PM AND WINDS WILL TURN MORE
WESTERLY BEHIND THE FRONT. SHOULD CONTINUE TO SEE POST FRONTAL
GUSTS OF 25 TO 30 KT THROUGH MUCH OF THE OVERNIGHT PERIOD. SEAS
WILL ALSO INCREASE A BIT WITH THE STRONGER WINDS...REACHING NEAR
OR JUST ABOVE 10 FT AT TIMES...MAINLY IN THE NORTHERN WATERS WHERE
THE STRONGEST WINDS ARE EXPECTED.

CONDITIONS WILL BEGIN TO QUIET DOWN SAT MORNING AS WEAK HIGH PRES
BUILDS BACK OVER THE WATERS. HOWEVER...WITH THE HIGHER PRES OVER
THE WATERS AND LOW PRES OVER THE GULF OF ALASKA...THE SW GRADIENT
MAY TIGHTEN ENOUGH TO PRODUCE LOW END SMALL CRAFT ADVISORY WINDS
OVER THE NORTHERN OUTER WATERS SAT NIGHT AND SUN. THE GULF OF
ALASKA LOW WILL ALSO BRING SOME INCREASING WESTERLY SWELL ON
SUN...WITH SEAS EXPECTED TO BUILD INTO THE 10 TO 12 FT RANGE BY
SUN AFTERNOON.

ANOTHER FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT SHOULD
BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY WINDS. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS UNTIL 3 AM PDT SATURDAY FOR
     COASTAL WATERS FROM CAPE SHOALWATER WA TO FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 8 PM THIS EVENING
     TO 8 AM PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA
    TO CASCADE HEAD OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
    THIS EVENING TO 2 AM PDT SATURDAY.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM TO
    1 PM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 272337 AAA
AFDPQR

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND
437 PM PDT FRI MAR 27 2015

UPDATED SYNOPSIS

.SYNOPSIS...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY...A FRONT CURRENTLY NEAR 130W
WILL WORK ITS WAY INTO NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS
EVENING. IT APPEARS THE FIRST RAIN SHOWERS SHOULD ARRIVE ON THE COAST
BETWEEN 4 PM AND 6 PM AND BETWEEN 6 PM AND 9 PM ACROSS THE WILLAMETTE
VALLEY...AND PROBABLY CLOSER TO 9 TO 10 PM FOR HOOD RIVER. POST
FRONTAL SHOWERS CURRENTLY PUSHING EAST OF 130W WILL SPREAD INTO THE
REGION LATER TONIGHT. HOWEVER...A LOWERING SUBSIDENCE INVERSION AND
CONTINUING WESTERLY FLOW WILL INCREASINGLY LIMIT SHOWER ACTIVITY TO
THE COAST...COAST RANGE AND CASCADES LATE TONIGHT AND SATURDAY
MORNING.

RELATIVELY FLAT RIDGING WILL BUILD INTO THE REGION SATURDAY AND FOR
MOST OF THE REGION BRING RELATIVELY DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR NORTHERN PORTIONS OF THE CWA WILL
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH. IN ADDITION...BOTH THE GFS AND EC SUGGEST OUR FAR NORTHWEST
ZONES MAY GET CLIPPED BY A LIGHT RAIN SHOWER OR TWO DURING THIS
PERIOD. /NEUMAN


.LONG TERM...MONDAY NIGHT THROUGH FRIDAY...MODELS CONTINUE TO SUGGEST
A FRONT WILL BRING RAIN AND LOWERING SNOW LEVELS MONDAY NIGHT AND
TUESDAY. A RATHER ACTIVE WESTERLY TO NORTHWESTERLY FLOW PATTERN LOOKS
TO LINGER ACROSS THE AREA FOR MUCH OF NEXT WEEK. THERE MAY BE A BREAK
IN THE ACTION TOWARDS NEXT THURSDAY SO POPS WERE TRENDED DOWN DURING
THIS PERIOD...BUT OTHERWISE POPS WERE NUDGED UPWARDS INTO THE HIGH
END CHANCE TO LIKELY RANGE FOR THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO HOVER BETWEEN 3K AND 4KFT FOR MUCH OF NEXT WEEK.
AB/NEUMAN

&&

.AVIATION...MARINE STRATUS PUSHED UP THE COAST AND INTO THE
SOUTHERN AND CENTRAL WILLAMETTE VALLEY THIS MORNING. THE STRATUS
HAS MOSTLY BURNED OFF OVER THE VALLEY...BUT WILL LIKELY REMAIN IN
PLACE THROUGH THE REST OF THE AFTERNOON AT THE COAST. A COLD FRONT
JUST OFFSHORE WILL SPREAD RAIN ONTO THE COAST AFTER 00Z...THEN
SPREAD INLAND THIS EVENING. THE FRONT SHOULD PUSH EAST OF THE
VALLEY BY 06Z TO 09Z. EXPECT A PERIOD OF MVFR CIGS WITH THE
FRONT. RAIN WILL TAPER TO SHOWERS BEHIND THE FRONT OVERNIGHT INTO
SAT MORNING. EXPECT MAINLY VFR CONDITIONS BEHIND THE FRONT WITH
OCCASIONAL MVFR CONDITIONS DURING HEAVIER SHOWER ACTIVITY. EXPECT
IMPROVING CONDITIONS SAT AFTERNOON...WITH VFR AND MAINLY DRY
CONDITIONS.

KPDX AND APPROACHES...VFR TO PERSIST THROUGH THE AFTERNOON AND
EARLY EVENING. A COLD FRONT WILL SPREAD RAIN AND LIKELY MVFR CIGS
FOR A PERIOD BETWEEN 02Z AND 07Z. EXPECT SHOWERS TO CONTINUE
OVERNIGHT INTO SAT MORNING BEHIND THE FRONT. CONDITIONS SHOULD
REMAIN MOSTLY VFR BEHIND THE FRONT...WITH OCCASIONAL MVFR DURING
HEAVIER SHOWERS. PYLE

&&

.MARINE...A COLD FRONT IS NEARING THE COASTAL WATERS THIS
AFTERNOON. SOUTHERLY WINDS ARE BEGINNING TO PICK UP AHEAD OF THE
FRONT...WITH BUOY 29 NOW SEEING GUSTS OF 20 TO 25 KT. WINDS SHOULD
INCREASE FURTHER LATER THIS AFTERNOON AND THIS EVENING. THE FRONT
WILL MOVE ONSHORE BY AROUND 6 PM AND WINDS WILL TURN MORE
WESTERLY BEHIND THE FRONT. SHOULD CONTINUE TO SEE POST FRONTAL
GUSTS OF 25 TO 30 KT THROUGH MUCH OF THE OVERNIGHT PERIOD. SEAS
WILL ALSO INCREASE A BIT WITH THE STRONGER WINDS...REACHING NEAR
OR JUST ABOVE 10 FT AT TIMES...MAINLY IN THE NORTHERN WATERS WHERE
THE STRONGEST WINDS ARE EXPECTED.

CONDITIONS WILL BEGIN TO QUIET DOWN SAT MORNING AS WEAK HIGH PRES
BUILDS BACK OVER THE WATERS. HOWEVER...WITH THE HIGHER PRES OVER
THE WATERS AND LOW PRES OVER THE GULF OF ALASKA...THE SW GRADIENT
MAY TIGHTEN ENOUGH TO PRODUCE LOW END SMALL CRAFT ADVISORY WINDS
OVER THE NORTHERN OUTER WATERS SAT NIGHT AND SUN. THE GULF OF
ALASKA LOW WILL ALSO BRING SOME INCREASING WESTERLY SWELL ON
SUN...WITH SEAS EXPECTED TO BUILD INTO THE 10 TO 12 FT RANGE BY
SUN AFTERNOON.

ANOTHER FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT SHOULD
BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY WINDS. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS UNTIL 3 AM PDT SATURDAY FOR
     COASTAL WATERS FROM CAPE SHOALWATER WA TO FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 8 PM THIS EVENING
     TO 8 AM PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA
    TO CASCADE HEAD OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
    THIS EVENING TO 2 AM PDT SATURDAY.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM TO
    1 PM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 272337 AAA
AFDPQR

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND
437 PM PDT FRI MAR 27 2015

UPDATED SYNOPSIS

.SYNOPSIS...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY...A FRONT CURRENTLY NEAR 130W
WILL WORK ITS WAY INTO NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS
EVENING. IT APPEARS THE FIRST RAIN SHOWERS SHOULD ARRIVE ON THE COAST
BETWEEN 4 PM AND 6 PM AND BETWEEN 6 PM AND 9 PM ACROSS THE WILLAMETTE
VALLEY...AND PROBABLY CLOSER TO 9 TO 10 PM FOR HOOD RIVER. POST
FRONTAL SHOWERS CURRENTLY PUSHING EAST OF 130W WILL SPREAD INTO THE
REGION LATER TONIGHT. HOWEVER...A LOWERING SUBSIDENCE INVERSION AND
CONTINUING WESTERLY FLOW WILL INCREASINGLY LIMIT SHOWER ACTIVITY TO
THE COAST...COAST RANGE AND CASCADES LATE TONIGHT AND SATURDAY
MORNING.

RELATIVELY FLAT RIDGING WILL BUILD INTO THE REGION SATURDAY AND FOR
MOST OF THE REGION BRING RELATIVELY DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR NORTHERN PORTIONS OF THE CWA WILL
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH. IN ADDITION...BOTH THE GFS AND EC SUGGEST OUR FAR NORTHWEST
ZONES MAY GET CLIPPED BY A LIGHT RAIN SHOWER OR TWO DURING THIS
PERIOD. /NEUMAN


.LONG TERM...MONDAY NIGHT THROUGH FRIDAY...MODELS CONTINUE TO SUGGEST
A FRONT WILL BRING RAIN AND LOWERING SNOW LEVELS MONDAY NIGHT AND
TUESDAY. A RATHER ACTIVE WESTERLY TO NORTHWESTERLY FLOW PATTERN LOOKS
TO LINGER ACROSS THE AREA FOR MUCH OF NEXT WEEK. THERE MAY BE A BREAK
IN THE ACTION TOWARDS NEXT THURSDAY SO POPS WERE TRENDED DOWN DURING
THIS PERIOD...BUT OTHERWISE POPS WERE NUDGED UPWARDS INTO THE HIGH
END CHANCE TO LIKELY RANGE FOR THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO HOVER BETWEEN 3K AND 4KFT FOR MUCH OF NEXT WEEK.
AB/NEUMAN

&&

.AVIATION...MARINE STRATUS PUSHED UP THE COAST AND INTO THE
SOUTHERN AND CENTRAL WILLAMETTE VALLEY THIS MORNING. THE STRATUS
HAS MOSTLY BURNED OFF OVER THE VALLEY...BUT WILL LIKELY REMAIN IN
PLACE THROUGH THE REST OF THE AFTERNOON AT THE COAST. A COLD FRONT
JUST OFFSHORE WILL SPREAD RAIN ONTO THE COAST AFTER 00Z...THEN
SPREAD INLAND THIS EVENING. THE FRONT SHOULD PUSH EAST OF THE
VALLEY BY 06Z TO 09Z. EXPECT A PERIOD OF MVFR CIGS WITH THE
FRONT. RAIN WILL TAPER TO SHOWERS BEHIND THE FRONT OVERNIGHT INTO
SAT MORNING. EXPECT MAINLY VFR CONDITIONS BEHIND THE FRONT WITH
OCCASIONAL MVFR CONDITIONS DURING HEAVIER SHOWER ACTIVITY. EXPECT
IMPROVING CONDITIONS SAT AFTERNOON...WITH VFR AND MAINLY DRY
CONDITIONS.

KPDX AND APPROACHES...VFR TO PERSIST THROUGH THE AFTERNOON AND
EARLY EVENING. A COLD FRONT WILL SPREAD RAIN AND LIKELY MVFR CIGS
FOR A PERIOD BETWEEN 02Z AND 07Z. EXPECT SHOWERS TO CONTINUE
OVERNIGHT INTO SAT MORNING BEHIND THE FRONT. CONDITIONS SHOULD
REMAIN MOSTLY VFR BEHIND THE FRONT...WITH OCCASIONAL MVFR DURING
HEAVIER SHOWERS. PYLE

&&

.MARINE...A COLD FRONT IS NEARING THE COASTAL WATERS THIS
AFTERNOON. SOUTHERLY WINDS ARE BEGINNING TO PICK UP AHEAD OF THE
FRONT...WITH BUOY 29 NOW SEEING GUSTS OF 20 TO 25 KT. WINDS SHOULD
INCREASE FURTHER LATER THIS AFTERNOON AND THIS EVENING. THE FRONT
WILL MOVE ONSHORE BY AROUND 6 PM AND WINDS WILL TURN MORE
WESTERLY BEHIND THE FRONT. SHOULD CONTINUE TO SEE POST FRONTAL
GUSTS OF 25 TO 30 KT THROUGH MUCH OF THE OVERNIGHT PERIOD. SEAS
WILL ALSO INCREASE A BIT WITH THE STRONGER WINDS...REACHING NEAR
OR JUST ABOVE 10 FT AT TIMES...MAINLY IN THE NORTHERN WATERS WHERE
THE STRONGEST WINDS ARE EXPECTED.

CONDITIONS WILL BEGIN TO QUIET DOWN SAT MORNING AS WEAK HIGH PRES
BUILDS BACK OVER THE WATERS. HOWEVER...WITH THE HIGHER PRES OVER
THE WATERS AND LOW PRES OVER THE GULF OF ALASKA...THE SW GRADIENT
MAY TIGHTEN ENOUGH TO PRODUCE LOW END SMALL CRAFT ADVISORY WINDS
OVER THE NORTHERN OUTER WATERS SAT NIGHT AND SUN. THE GULF OF
ALASKA LOW WILL ALSO BRING SOME INCREASING WESTERLY SWELL ON
SUN...WITH SEAS EXPECTED TO BUILD INTO THE 10 TO 12 FT RANGE BY
SUN AFTERNOON.

ANOTHER FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT SHOULD
BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY WINDS. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS UNTIL 3 AM PDT SATURDAY FOR
     COASTAL WATERS FROM CAPE SHOALWATER WA TO FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 8 PM THIS EVENING
     TO 8 AM PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA
    TO CASCADE HEAD OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
    THIS EVENING TO 2 AM PDT SATURDAY.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM TO
    1 PM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 272337 AAA
AFDPQR

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND
437 PM PDT FRI MAR 27 2015

UPDATED SYNOPSIS

.SYNOPSIS...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY...A FRONT CURRENTLY NEAR 130W
WILL WORK ITS WAY INTO NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS
EVENING. IT APPEARS THE FIRST RAIN SHOWERS SHOULD ARRIVE ON THE COAST
BETWEEN 4 PM AND 6 PM AND BETWEEN 6 PM AND 9 PM ACROSS THE WILLAMETTE
VALLEY...AND PROBABLY CLOSER TO 9 TO 10 PM FOR HOOD RIVER. POST
FRONTAL SHOWERS CURRENTLY PUSHING EAST OF 130W WILL SPREAD INTO THE
REGION LATER TONIGHT. HOWEVER...A LOWERING SUBSIDENCE INVERSION AND
CONTINUING WESTERLY FLOW WILL INCREASINGLY LIMIT SHOWER ACTIVITY TO
THE COAST...COAST RANGE AND CASCADES LATE TONIGHT AND SATURDAY
MORNING.

RELATIVELY FLAT RIDGING WILL BUILD INTO THE REGION SATURDAY AND FOR
MOST OF THE REGION BRING RELATIVELY DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR NORTHERN PORTIONS OF THE CWA WILL
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH. IN ADDITION...BOTH THE GFS AND EC SUGGEST OUR FAR NORTHWEST
ZONES MAY GET CLIPPED BY A LIGHT RAIN SHOWER OR TWO DURING THIS
PERIOD. /NEUMAN


.LONG TERM...MONDAY NIGHT THROUGH FRIDAY...MODELS CONTINUE TO SUGGEST
A FRONT WILL BRING RAIN AND LOWERING SNOW LEVELS MONDAY NIGHT AND
TUESDAY. A RATHER ACTIVE WESTERLY TO NORTHWESTERLY FLOW PATTERN LOOKS
TO LINGER ACROSS THE AREA FOR MUCH OF NEXT WEEK. THERE MAY BE A BREAK
IN THE ACTION TOWARDS NEXT THURSDAY SO POPS WERE TRENDED DOWN DURING
THIS PERIOD...BUT OTHERWISE POPS WERE NUDGED UPWARDS INTO THE HIGH
END CHANCE TO LIKELY RANGE FOR THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO HOVER BETWEEN 3K AND 4KFT FOR MUCH OF NEXT WEEK.
AB/NEUMAN

&&

.AVIATION...MARINE STRATUS PUSHED UP THE COAST AND INTO THE
SOUTHERN AND CENTRAL WILLAMETTE VALLEY THIS MORNING. THE STRATUS
HAS MOSTLY BURNED OFF OVER THE VALLEY...BUT WILL LIKELY REMAIN IN
PLACE THROUGH THE REST OF THE AFTERNOON AT THE COAST. A COLD FRONT
JUST OFFSHORE WILL SPREAD RAIN ONTO THE COAST AFTER 00Z...THEN
SPREAD INLAND THIS EVENING. THE FRONT SHOULD PUSH EAST OF THE
VALLEY BY 06Z TO 09Z. EXPECT A PERIOD OF MVFR CIGS WITH THE
FRONT. RAIN WILL TAPER TO SHOWERS BEHIND THE FRONT OVERNIGHT INTO
SAT MORNING. EXPECT MAINLY VFR CONDITIONS BEHIND THE FRONT WITH
OCCASIONAL MVFR CONDITIONS DURING HEAVIER SHOWER ACTIVITY. EXPECT
IMPROVING CONDITIONS SAT AFTERNOON...WITH VFR AND MAINLY DRY
CONDITIONS.

KPDX AND APPROACHES...VFR TO PERSIST THROUGH THE AFTERNOON AND
EARLY EVENING. A COLD FRONT WILL SPREAD RAIN AND LIKELY MVFR CIGS
FOR A PERIOD BETWEEN 02Z AND 07Z. EXPECT SHOWERS TO CONTINUE
OVERNIGHT INTO SAT MORNING BEHIND THE FRONT. CONDITIONS SHOULD
REMAIN MOSTLY VFR BEHIND THE FRONT...WITH OCCASIONAL MVFR DURING
HEAVIER SHOWERS. PYLE

&&

.MARINE...A COLD FRONT IS NEARING THE COASTAL WATERS THIS
AFTERNOON. SOUTHERLY WINDS ARE BEGINNING TO PICK UP AHEAD OF THE
FRONT...WITH BUOY 29 NOW SEEING GUSTS OF 20 TO 25 KT. WINDS SHOULD
INCREASE FURTHER LATER THIS AFTERNOON AND THIS EVENING. THE FRONT
WILL MOVE ONSHORE BY AROUND 6 PM AND WINDS WILL TURN MORE
WESTERLY BEHIND THE FRONT. SHOULD CONTINUE TO SEE POST FRONTAL
GUSTS OF 25 TO 30 KT THROUGH MUCH OF THE OVERNIGHT PERIOD. SEAS
WILL ALSO INCREASE A BIT WITH THE STRONGER WINDS...REACHING NEAR
OR JUST ABOVE 10 FT AT TIMES...MAINLY IN THE NORTHERN WATERS WHERE
THE STRONGEST WINDS ARE EXPECTED.

CONDITIONS WILL BEGIN TO QUIET DOWN SAT MORNING AS WEAK HIGH PRES
BUILDS BACK OVER THE WATERS. HOWEVER...WITH THE HIGHER PRES OVER
THE WATERS AND LOW PRES OVER THE GULF OF ALASKA...THE SW GRADIENT
MAY TIGHTEN ENOUGH TO PRODUCE LOW END SMALL CRAFT ADVISORY WINDS
OVER THE NORTHERN OUTER WATERS SAT NIGHT AND SUN. THE GULF OF
ALASKA LOW WILL ALSO BRING SOME INCREASING WESTERLY SWELL ON
SUN...WITH SEAS EXPECTED TO BUILD INTO THE 10 TO 12 FT RANGE BY
SUN AFTERNOON.

ANOTHER FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT SHOULD
BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY WINDS. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS UNTIL 3 AM PDT SATURDAY FOR
     COASTAL WATERS FROM CAPE SHOALWATER WA TO FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 8 PM THIS EVENING
     TO 8 AM PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA
    TO CASCADE HEAD OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
    THIS EVENING TO 2 AM PDT SATURDAY.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM TO
    1 PM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 272337 AAA
AFDPQR

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND
437 PM PDT FRI MAR 27 2015

UPDATED SYNOPSIS

.SYNOPSIS...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY...A FRONT CURRENTLY NEAR 130W
WILL WORK ITS WAY INTO NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS
EVENING. IT APPEARS THE FIRST RAIN SHOWERS SHOULD ARRIVE ON THE COAST
BETWEEN 4 PM AND 6 PM AND BETWEEN 6 PM AND 9 PM ACROSS THE WILLAMETTE
VALLEY...AND PROBABLY CLOSER TO 9 TO 10 PM FOR HOOD RIVER. POST
FRONTAL SHOWERS CURRENTLY PUSHING EAST OF 130W WILL SPREAD INTO THE
REGION LATER TONIGHT. HOWEVER...A LOWERING SUBSIDENCE INVERSION AND
CONTINUING WESTERLY FLOW WILL INCREASINGLY LIMIT SHOWER ACTIVITY TO
THE COAST...COAST RANGE AND CASCADES LATE TONIGHT AND SATURDAY
MORNING.

RELATIVELY FLAT RIDGING WILL BUILD INTO THE REGION SATURDAY AND FOR
MOST OF THE REGION BRING RELATIVELY DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR NORTHERN PORTIONS OF THE CWA WILL
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH. IN ADDITION...BOTH THE GFS AND EC SUGGEST OUR FAR NORTHWEST
ZONES MAY GET CLIPPED BY A LIGHT RAIN SHOWER OR TWO DURING THIS
PERIOD. /NEUMAN


.LONG TERM...MONDAY NIGHT THROUGH FRIDAY...MODELS CONTINUE TO SUGGEST
A FRONT WILL BRING RAIN AND LOWERING SNOW LEVELS MONDAY NIGHT AND
TUESDAY. A RATHER ACTIVE WESTERLY TO NORTHWESTERLY FLOW PATTERN LOOKS
TO LINGER ACROSS THE AREA FOR MUCH OF NEXT WEEK. THERE MAY BE A BREAK
IN THE ACTION TOWARDS NEXT THURSDAY SO POPS WERE TRENDED DOWN DURING
THIS PERIOD...BUT OTHERWISE POPS WERE NUDGED UPWARDS INTO THE HIGH
END CHANCE TO LIKELY RANGE FOR THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO HOVER BETWEEN 3K AND 4KFT FOR MUCH OF NEXT WEEK.
AB/NEUMAN

&&

.AVIATION...MARINE STRATUS PUSHED UP THE COAST AND INTO THE
SOUTHERN AND CENTRAL WILLAMETTE VALLEY THIS MORNING. THE STRATUS
HAS MOSTLY BURNED OFF OVER THE VALLEY...BUT WILL LIKELY REMAIN IN
PLACE THROUGH THE REST OF THE AFTERNOON AT THE COAST. A COLD FRONT
JUST OFFSHORE WILL SPREAD RAIN ONTO THE COAST AFTER 00Z...THEN
SPREAD INLAND THIS EVENING. THE FRONT SHOULD PUSH EAST OF THE
VALLEY BY 06Z TO 09Z. EXPECT A PERIOD OF MVFR CIGS WITH THE
FRONT. RAIN WILL TAPER TO SHOWERS BEHIND THE FRONT OVERNIGHT INTO
SAT MORNING. EXPECT MAINLY VFR CONDITIONS BEHIND THE FRONT WITH
OCCASIONAL MVFR CONDITIONS DURING HEAVIER SHOWER ACTIVITY. EXPECT
IMPROVING CONDITIONS SAT AFTERNOON...WITH VFR AND MAINLY DRY
CONDITIONS.

KPDX AND APPROACHES...VFR TO PERSIST THROUGH THE AFTERNOON AND
EARLY EVENING. A COLD FRONT WILL SPREAD RAIN AND LIKELY MVFR CIGS
FOR A PERIOD BETWEEN 02Z AND 07Z. EXPECT SHOWERS TO CONTINUE
OVERNIGHT INTO SAT MORNING BEHIND THE FRONT. CONDITIONS SHOULD
REMAIN MOSTLY VFR BEHIND THE FRONT...WITH OCCASIONAL MVFR DURING
HEAVIER SHOWERS. PYLE

&&

.MARINE...A COLD FRONT IS NEARING THE COASTAL WATERS THIS
AFTERNOON. SOUTHERLY WINDS ARE BEGINNING TO PICK UP AHEAD OF THE
FRONT...WITH BUOY 29 NOW SEEING GUSTS OF 20 TO 25 KT. WINDS SHOULD
INCREASE FURTHER LATER THIS AFTERNOON AND THIS EVENING. THE FRONT
WILL MOVE ONSHORE BY AROUND 6 PM AND WINDS WILL TURN MORE
WESTERLY BEHIND THE FRONT. SHOULD CONTINUE TO SEE POST FRONTAL
GUSTS OF 25 TO 30 KT THROUGH MUCH OF THE OVERNIGHT PERIOD. SEAS
WILL ALSO INCREASE A BIT WITH THE STRONGER WINDS...REACHING NEAR
OR JUST ABOVE 10 FT AT TIMES...MAINLY IN THE NORTHERN WATERS WHERE
THE STRONGEST WINDS ARE EXPECTED.

CONDITIONS WILL BEGIN TO QUIET DOWN SAT MORNING AS WEAK HIGH PRES
BUILDS BACK OVER THE WATERS. HOWEVER...WITH THE HIGHER PRES OVER
THE WATERS AND LOW PRES OVER THE GULF OF ALASKA...THE SW GRADIENT
MAY TIGHTEN ENOUGH TO PRODUCE LOW END SMALL CRAFT ADVISORY WINDS
OVER THE NORTHERN OUTER WATERS SAT NIGHT AND SUN. THE GULF OF
ALASKA LOW WILL ALSO BRING SOME INCREASING WESTERLY SWELL ON
SUN...WITH SEAS EXPECTED TO BUILD INTO THE 10 TO 12 FT RANGE BY
SUN AFTERNOON.

ANOTHER FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT SHOULD
BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY WINDS. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS UNTIL 3 AM PDT SATURDAY FOR
     COASTAL WATERS FROM CAPE SHOALWATER WA TO FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 8 PM THIS EVENING
     TO 8 AM PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA
    TO CASCADE HEAD OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
    THIS EVENING TO 2 AM PDT SATURDAY.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM TO
    1 PM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 272337 AAA
AFDPQR

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PORTLAND
437 PM PDT FRI MAR 27 2015

UPDATED SYNOPSIS

.SYNOPSIS...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY...A FRONT CURRENTLY NEAR 130W
WILL WORK ITS WAY INTO NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS
EVENING. IT APPEARS THE FIRST RAIN SHOWERS SHOULD ARRIVE ON THE COAST
BETWEEN 4 PM AND 6 PM AND BETWEEN 6 PM AND 9 PM ACROSS THE WILLAMETTE
VALLEY...AND PROBABLY CLOSER TO 9 TO 10 PM FOR HOOD RIVER. POST
FRONTAL SHOWERS CURRENTLY PUSHING EAST OF 130W WILL SPREAD INTO THE
REGION LATER TONIGHT. HOWEVER...A LOWERING SUBSIDENCE INVERSION AND
CONTINUING WESTERLY FLOW WILL INCREASINGLY LIMIT SHOWER ACTIVITY TO
THE COAST...COAST RANGE AND CASCADES LATE TONIGHT AND SATURDAY
MORNING.

RELATIVELY FLAT RIDGING WILL BUILD INTO THE REGION SATURDAY AND FOR
MOST OF THE REGION BRING RELATIVELY DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR NORTHERN PORTIONS OF THE CWA WILL
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH. IN ADDITION...BOTH THE GFS AND EC SUGGEST OUR FAR NORTHWEST
ZONES MAY GET CLIPPED BY A LIGHT RAIN SHOWER OR TWO DURING THIS
PERIOD. /NEUMAN


.LONG TERM...MONDAY NIGHT THROUGH FRIDAY...MODELS CONTINUE TO SUGGEST
A FRONT WILL BRING RAIN AND LOWERING SNOW LEVELS MONDAY NIGHT AND
TUESDAY. A RATHER ACTIVE WESTERLY TO NORTHWESTERLY FLOW PATTERN LOOKS
TO LINGER ACROSS THE AREA FOR MUCH OF NEXT WEEK. THERE MAY BE A BREAK
IN THE ACTION TOWARDS NEXT THURSDAY SO POPS WERE TRENDED DOWN DURING
THIS PERIOD...BUT OTHERWISE POPS WERE NUDGED UPWARDS INTO THE HIGH
END CHANCE TO LIKELY RANGE FOR THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO HOVER BETWEEN 3K AND 4KFT FOR MUCH OF NEXT WEEK.
AB/NEUMAN

&&

.AVIATION...MARINE STRATUS PUSHED UP THE COAST AND INTO THE
SOUTHERN AND CENTRAL WILLAMETTE VALLEY THIS MORNING. THE STRATUS
HAS MOSTLY BURNED OFF OVER THE VALLEY...BUT WILL LIKELY REMAIN IN
PLACE THROUGH THE REST OF THE AFTERNOON AT THE COAST. A COLD FRONT
JUST OFFSHORE WILL SPREAD RAIN ONTO THE COAST AFTER 00Z...THEN
SPREAD INLAND THIS EVENING. THE FRONT SHOULD PUSH EAST OF THE
VALLEY BY 06Z TO 09Z. EXPECT A PERIOD OF MVFR CIGS WITH THE
FRONT. RAIN WILL TAPER TO SHOWERS BEHIND THE FRONT OVERNIGHT INTO
SAT MORNING. EXPECT MAINLY VFR CONDITIONS BEHIND THE FRONT WITH
OCCASIONAL MVFR CONDITIONS DURING HEAVIER SHOWER ACTIVITY. EXPECT
IMPROVING CONDITIONS SAT AFTERNOON...WITH VFR AND MAINLY DRY
CONDITIONS.

KPDX AND APPROACHES...VFR TO PERSIST THROUGH THE AFTERNOON AND
EARLY EVENING. A COLD FRONT WILL SPREAD RAIN AND LIKELY MVFR CIGS
FOR A PERIOD BETWEEN 02Z AND 07Z. EXPECT SHOWERS TO CONTINUE
OVERNIGHT INTO SAT MORNING BEHIND THE FRONT. CONDITIONS SHOULD
REMAIN MOSTLY VFR BEHIND THE FRONT...WITH OCCASIONAL MVFR DURING
HEAVIER SHOWERS. PYLE

&&

.MARINE...A COLD FRONT IS NEARING THE COASTAL WATERS THIS
AFTERNOON. SOUTHERLY WINDS ARE BEGINNING TO PICK UP AHEAD OF THE
FRONT...WITH BUOY 29 NOW SEEING GUSTS OF 20 TO 25 KT. WINDS SHOULD
INCREASE FURTHER LATER THIS AFTERNOON AND THIS EVENING. THE FRONT
WILL MOVE ONSHORE BY AROUND 6 PM AND WINDS WILL TURN MORE
WESTERLY BEHIND THE FRONT. SHOULD CONTINUE TO SEE POST FRONTAL
GUSTS OF 25 TO 30 KT THROUGH MUCH OF THE OVERNIGHT PERIOD. SEAS
WILL ALSO INCREASE A BIT WITH THE STRONGER WINDS...REACHING NEAR
OR JUST ABOVE 10 FT AT TIMES...MAINLY IN THE NORTHERN WATERS WHERE
THE STRONGEST WINDS ARE EXPECTED.

CONDITIONS WILL BEGIN TO QUIET DOWN SAT MORNING AS WEAK HIGH PRES
BUILDS BACK OVER THE WATERS. HOWEVER...WITH THE HIGHER PRES OVER
THE WATERS AND LOW PRES OVER THE GULF OF ALASKA...THE SW GRADIENT
MAY TIGHTEN ENOUGH TO PRODUCE LOW END SMALL CRAFT ADVISORY WINDS
OVER THE NORTHERN OUTER WATERS SAT NIGHT AND SUN. THE GULF OF
ALASKA LOW WILL ALSO BRING SOME INCREASING WESTERLY SWELL ON
SUN...WITH SEAS EXPECTED TO BUILD INTO THE 10 TO 12 FT RANGE BY
SUN AFTERNOON.

ANOTHER FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT SHOULD
BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY WINDS. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS UNTIL 3 AM PDT SATURDAY FOR
     COASTAL WATERS FROM CAPE SHOALWATER WA TO FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 8 PM THIS EVENING
     TO 8 AM PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA
    TO CASCADE HEAD OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
    THIS EVENING TO 2 AM PDT SATURDAY.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM TO
    1 PM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 272153
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
252 PM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS TODAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH MONDAY...A FRONT CURRENTLY NEAR 130W
WILL WORK ITS WAY INTO NORTHWEST OREGON AND SOUTHWEST WASHINGTON THIS
EVENING. IT APPEARS THE FIRST RAIN SHOWERS SHOULD ARRIVE ON THE COAST
BETWEEN 4 PM AND 6 PM AND BETWEEN 6 PM AND 9 PM ACROSS THE WILLAMETTE
VALLEY...AND PROBABLY CLOSER TO 9 TO 10 PM FOR HOOD RIVER. POST
FRONTAL SHOWERS CURRENTLY PUSHING EAST OF 130W WILL SPREAD INTO THE
REGION LATER TONIGHT. HOWEVER...A LOWERING SUBSIDENCE INVERSION AND
CONTINUING WESTERLY FLOW WILL INCREASINGLY LIMIT SHOWER ACTIVITY TO
THE COAST...COAST RANGE AND CASCADES LATE TONIGHT AND SATURDAY
MORNING.

RELATIVELY FLAT RIDGING WILL BUILD INTO THE REGION SATURDAY AND FOR
MOST OF THE REGION BRING RELATIVELY DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR NORTHERN PORTIONS OF THE CWA WILL
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH. IN ADDITION...BOTH THE GFS AND EC SUGGEST OUR FAR NORTHWEST
ZONES MAY GET CLIPPED BY A LIGHT RAIN SHOWER OR TWO DURING THIS
PERIOD. /NEUMAN


.LONG TERM...MONDAY NIGHT THROUGH FRIDAY...MODELS CONTINUE TO SUGGEST
A FRONT WILL BRING RAIN AND LOWERING SNOW LEVELS MONDAY NIGHT AND
TUESDAY. A RATHER ACTIVE WESTERLY TO NORTHWESTERLY FLOW PATTERN LOOKS
TO LINGER ACROSS THE AREA FOR MUCH OF NEXT WEEK. THERE MAY BE A BREAK
IN THE ACTION TOWARDS NEXT THURSDAY SO POPS WERE TRENDED DOWN DURING
THIS PERIOD...BUT OTHERWISE POPS WERE NUDGED UPWARDS INTO THE HIGH
END CHANCE TO LIKELY RANGE FOR THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO HOVER BETWEEN 3K AND 4KFT FOR MUCH OF NEXT WEEK.
AB/NEUMAN

&&

.AVIATION...MARINE STRATUS PUSHED UP THE COAST AND INTO THE
SOUTHERN AND CENTRAL WILLAMETTE VALLEY THIS MORNING. THE STRATUS
HAS MOSTLY BURNED OFF OVER THE VALLEY...BUT WILL LIKELY REMAIN IN
PLACE THROUGH THE REST OF THE AFTERNOON AT THE COAST. A COLD FRONT
JUST OFFSHORE WILL SPREAD RAIN ONTO THE COAST AFTER 00Z...THEN
SPREAD INLAND THIS EVENING. THE FRONT SHOULD PUSH EAST OF THE
VALLEY BY 06Z TO 09Z. EXPECT A PERIOD OF MVFR CIGS WITH THE
FRONT. RAIN WILL TAPER TO SHOWERS BEHIND THE FRONT OVERNIGHT INTO
SAT MORNING. EXPECT MAINLY VFR CONDITIONS BEHIND THE FRONT WITH
OCCASIONAL MVFR CONDITIONS DURING HEAVIER SHOWER ACTIVITY. EXPECT
IMPROVING CONDITIONS SAT AFTERNOON...WITH VFR AND MAINLY DRY
CONDITIONS.

KPDX AND APPROACHES...VFR TO PERSIST THROUGH THE AFTERNOON AND
EARLY EVENING. A COLD FRONT WILL SPREAD RAIN AND LIKELY MVFR CIGS
FOR A PERIOD BETWEEN 02Z AND 07Z. EXPECT SHOWERS TO CONTINUE
OVERNIGHT INTO SAT MORNING BEHIND THE FRONT. CONDITIONS SHOULD
REMAIN MOSTLY VFR BEHIND THE FRONT...WITH OCCASIONAL MVFR DURING
HEAVIER SHOWERS. PYLE

&&

.MARINE...A COLD FRONT IS NEARING THE COASTAL WATERS THIS
AFTERNOON. SOUTHERLY WINDS ARE BEGINNING TO PICK UP AHEAD OF THE
FRONT...WITH BUOY 29 NOW SEEING GUSTS OF 20 TO 25 KT. WINDS SHOULD
INCREASE FURTHER LATER THIS AFTERNOON AND THIS EVENING. THE FRONT
WILL MOVE ONSHORE BY AROUND 6 PM AND WINDS WILL TURN MORE
WESTERLY BEHIND THE FRONT. SHOULD CONTINUE TO SEE POST FRONTAL
GUSTS OF 25 TO 30 KT THROUGH MUCH OF THE OVERNIGHT PERIOD. SEAS
WILL ALSO INCREASE A BIT WITH THE STRONGER WINDS...REACHING NEAR
OR JUST ABOVE 10 FT AT TIMES...MAINLY IN THE NORTHERN WATERS WHERE
THE STRONGEST WINDS ARE EXPECTED.

CONDITIONS WILL BEGIN TO QUIET DOWN SAT MORNING AS WEAK HIGH PRES
BUILDS BACK OVER THE WATERS. HOWEVER...WITH THE HIGHER PRES OVER
THE WATERS AND LOW PRES OVER THE GULF OF ALASKA...THE SW GRADIENT
MAY TIGHTEN ENOUGH TO PRODUCE LOW END SMALL CRAFT ADVISORY WINDS
OVER THE NORTHERN OUTER WATERS SAT NIGHT AND SUN. THE GULF OF
ALASKA LOW WILL ALSO BRING SOME INCREASING WESTERLY SWELL ON
SUN...WITH SEAS EXPECTED TO BUILD INTO THE 10 TO 12 FT RANGE BY
SUN AFTERNOON.

ANOTHER FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT SHOULD
BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY WINDS. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS UNTIL 3 AM PDT SATURDAY FOR
     COASTAL WATERS FROM CAPE SHOALWATER WA TO FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS FROM 8 PM THIS EVENING
     TO 8 AM PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA
    TO CASCADE HEAD OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
    THIS EVENING TO 2 AM PDT SATURDAY.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM TO
    1 PM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



  [top]

000
FXUS66 KSEW 272139
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT FRI MAR 27 2015

.SYNOPSIS...RAIN WILL DEVELOP THIS EVENING...THEN CHANGE TO SHOWERS
AFTER MIDNIGHT BEHIND A FRONT. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS INTO BRITISH COLUMBIA AND NORTHWEST WASHINGTON OVER THE
WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY WITH
RAIN. A COOL SHOWERY UPPER TROUGH WILL BE OVER THE AREA TUESDAY.
SHOWERS MAY PERSIST THROUGH THE END OF NEXT WEEK.

&&

.SHORT TERM...THE KLGX COASTAL RADAR IS PICKING UP LIGHT RAIN NEAR
THE COAST. FORKS MEASURED THIS PAST HOUR SO THE FRONTAL TIMING
APPEARS ON TRACK. IR SATELLITE IMAGERY SHOWS THE BULK OF MOISTURE
AND LIFT TRACKING INTO SRN B.C. BUT THE TRAILING COLD FRONT NOW
INSIDE 130 W WILL BRING RAIN TO WRN WA THIS EVENING. ONSHORE FLOW
WILL PICK UP LATER TONIGHT BEHIND THE FRONT BRINGING ADDITIONAL
OROGRAPHICALLY ENHANCED RAIN AMOUNTS TO THE W/SW FACING MOUNTAIN
SLOPES. SHADOWING IN THE LEE OF THE OLYMPICS WILL REDUCE QPF AMOUNTS
JUST TO THE NE OF THE OLYMPICS...GENERALLY LESS THAN A COUPLE
TENTHS. A QUARTER TO LOCALLY ONE HALF INCH COULD FALL OVER THE
REMAINDER OF THE LOWLANDS. SNOW LEVELS WILL START OFF ELEVATED
AROUND 7000 FEET BUT SHOULD FALL OFF TO AROUND 5000 FEET AFTER
MIDNIGHT AND TO 4000 TO 4500 FEET SATURDAY MORNING. SINCE THE
HEAVIER PRECIPITATION WILL OCCUR BEFORE COLDEST AIR ARRIVES...SNOW
ACCUMULATIONS WILL GENERALLY BE ABOVE MOST THE PASSES AND LIMITED TO
A FEW INCHES AT HIGHER SPOTS LIKE MOUNT BAKER. STEVENS COULD
CONCEIVABLY PICK UP A COUPLE INCHES AT THE SUMMIT WHILE NO
ACCUMULATION IS EXPECTED LOWER DOWN AT SNOQUALMIE.

MODELS STILL SHOW A FAVORABLE PUGET SOUND CONVERGENCE ZONE PATTERN
FOR SATURDAY. WITH THE 850 MB FLOW REMAINING MORE WLY...ANY
CONVERGENCE ZONE SHOULD STAY N OF SEATTLE. IT WILL ALSO BECOME
BREEZY BEHIND THE FRONT. FOR GREATER PUGET SOUND...SW WINDS OF 15 TO
25 MPH ARE EXPECTED TO DEVELOP EARLY SATURDAY MORNING. SHOWERS
SHOULD TAPER OFF IN THE AFTERNOON WITH CHANCE POPS IN PLACE. IT WILL
BE COOLER WITH HIGHS IN THE MID 50S TO AROUND 60.

THE PATTERN BECOMES A BIT TRICKIER BY SUNDAY AND MONDAY. NEARLY
ZONAL MOIST FLOW BECOMES DIRECTED INTO SRN B.C. AND NW WA. THE
STREAM OF MOISTURE IS LIKELY TO MEANDER A LITTLE AND ANY SWD PUSH
WILL BRING COULD BRING RAIN INTO PUGET SOUND. OTHER MODELS LIKE THE
NAM-12 ARE FURTHER N WITH THE MOISTURE BAND SO I OPTED TO KEEP MOST
OF PUGET SOUND SWD DRY DURING THE SUNDAY-MONDAY MORNING PERIOD.

THE GFS/ECMWF/NAM ALL AMPLIFY THE INTERIOR WRN US RIDGE LATER ON
MONDAY. THIS ALLOWS A DEEPENING OF THE TROUGH OFF THE PAC NW COAST
WHICH SHOULD PUSH A FRONT THROUGH THE AREA. CHANCE POPS MONDAY
AFTERNOON ARE BOOSTED TO LIKELY BY MONDAY NIGHT. MERCER

.LONG TERM...THE GFS/ECMWF BOTH SHOW SPLIT FLOW AND SERIES OF MOSTLY
WEAK FRONTAL SYSTEMS TRAVERSING THE REGION TUESDAY THROUGH THE END
OF THE WEEK. TUESDAY LOOKS WET AND FRIDAY LOOKS TO HAVE THE BEST
CHANCE OF STAYING DRY. BUT TIMING IS NOT LIKELY TO BE VERY RELIABLE
GIVEN THE PROGRESSIVE SPLIT FLOW PATTERN. MERCER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LOW LEVEL SOUTHERLY FLOW WILL INCREASE AND COASTAL
STRATUS WILL COMBINE WITH THE FRONT JUST OFF THE COAST AND SPREAD
INLAND LATE THIS AFTERNOON AND EVENING. RAIN SHOULD DEVELOP ON THE
COAST LATE THIS AFTERNOON AND QUICKLY SPREAD INLAND THIS EVENING.
THE FRONT IS FAIRLY NARROW AND THE RAIN SHOULD TURN TO SCATTERED
SHOWERS QUICKLY OVERNIGHT. A PSCZ WILL PROBABLY FORM LATER TONIGHT
AND PERHAPS GIVE AN AREA OF SHOWERS AND LOW CIGS THROUGH SAT MORNING
BETWEEN THE EVERETT AREA AND THE NORTH PART OF HOOD CANAL. THE FLOW
ALOFT IS SW AND THE STABLE AIR MASS WILL BECOME UNSTABLE OVERNIGHT.

KSEA...A COLD FRONT WILL REACH SEATTLE THIS EVENING SO RAIN WILL
DEVELOP AND THEN SWITCH TO SHOWERS TONIGHT. A PSCZ IS LIKELY ON
SATURDAY BUT IT SHOULD REMAIN NORTH OF THE CITY SO THE WIND WILL
LIKELY REMAIN SW ON SAT.

&&

.MARINE...A COLD FRONT OVER THE COASTAL WATERS THIS AFTERNOON WILL
REACH THE INLAND WATERS THIS EVENING. SMALL CRAFT ADVISORIES ARE UP
FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH PRESSURE WILL BUILD
OVER THE REGION ON SATURDAY WITH WINDS EASING BY
AFTERNOON...ALTHOUGH THERE SHOULD CONTINUE TO BE A FAIRLY BRISK
WESTERLY IN THE STRAIT ON SATURDAY. AN APPROACHING FRONTAL BOUNDARY
WILL BRING INCREASING SOUTHERLIES TO THE COASTAL WATERS AGAIN LATER
SATURDAY THROUGH SUNDAY. A STRONG COLD FRONT SHOULD REACH THE AREA
MONDAY NIGHT.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML














000
FXUS66 KSEW 272139
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT FRI MAR 27 2015

.SYNOPSIS...RAIN WILL DEVELOP THIS EVENING...THEN CHANGE TO SHOWERS
AFTER MIDNIGHT BEHIND A FRONT. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS INTO BRITISH COLUMBIA AND NORTHWEST WASHINGTON OVER THE
WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY WITH
RAIN. A COOL SHOWERY UPPER TROUGH WILL BE OVER THE AREA TUESDAY.
SHOWERS MAY PERSIST THROUGH THE END OF NEXT WEEK.

&&

.SHORT TERM...THE KLGX COASTAL RADAR IS PICKING UP LIGHT RAIN NEAR
THE COAST. FORKS MEASURED THIS PAST HOUR SO THE FRONTAL TIMING
APPEARS ON TRACK. IR SATELLITE IMAGERY SHOWS THE BULK OF MOISTURE
AND LIFT TRACKING INTO SRN B.C. BUT THE TRAILING COLD FRONT NOW
INSIDE 130 W WILL BRING RAIN TO WRN WA THIS EVENING. ONSHORE FLOW
WILL PICK UP LATER TONIGHT BEHIND THE FRONT BRINGING ADDITIONAL
OROGRAPHICALLY ENHANCED RAIN AMOUNTS TO THE W/SW FACING MOUNTAIN
SLOPES. SHADOWING IN THE LEE OF THE OLYMPICS WILL REDUCE QPF AMOUNTS
JUST TO THE NE OF THE OLYMPICS...GENERALLY LESS THAN A COUPLE
TENTHS. A QUARTER TO LOCALLY ONE HALF INCH COULD FALL OVER THE
REMAINDER OF THE LOWLANDS. SNOW LEVELS WILL START OFF ELEVATED
AROUND 7000 FEET BUT SHOULD FALL OFF TO AROUND 5000 FEET AFTER
MIDNIGHT AND TO 4000 TO 4500 FEET SATURDAY MORNING. SINCE THE
HEAVIER PRECIPITATION WILL OCCUR BEFORE COLDEST AIR ARRIVES...SNOW
ACCUMULATIONS WILL GENERALLY BE ABOVE MOST THE PASSES AND LIMITED TO
A FEW INCHES AT HIGHER SPOTS LIKE MOUNT BAKER. STEVENS COULD
CONCEIVABLY PICK UP A COUPLE INCHES AT THE SUMMIT WHILE NO
ACCUMULATION IS EXPECTED LOWER DOWN AT SNOQUALMIE.

MODELS STILL SHOW A FAVORABLE PUGET SOUND CONVERGENCE ZONE PATTERN
FOR SATURDAY. WITH THE 850 MB FLOW REMAINING MORE WLY...ANY
CONVERGENCE ZONE SHOULD STAY N OF SEATTLE. IT WILL ALSO BECOME
BREEZY BEHIND THE FRONT. FOR GREATER PUGET SOUND...SW WINDS OF 15 TO
25 MPH ARE EXPECTED TO DEVELOP EARLY SATURDAY MORNING. SHOWERS
SHOULD TAPER OFF IN THE AFTERNOON WITH CHANCE POPS IN PLACE. IT WILL
BE COOLER WITH HIGHS IN THE MID 50S TO AROUND 60.

THE PATTERN BECOMES A BIT TRICKIER BY SUNDAY AND MONDAY. NEARLY
ZONAL MOIST FLOW BECOMES DIRECTED INTO SRN B.C. AND NW WA. THE
STREAM OF MOISTURE IS LIKELY TO MEANDER A LITTLE AND ANY SWD PUSH
WILL BRING COULD BRING RAIN INTO PUGET SOUND. OTHER MODELS LIKE THE
NAM-12 ARE FURTHER N WITH THE MOISTURE BAND SO I OPTED TO KEEP MOST
OF PUGET SOUND SWD DRY DURING THE SUNDAY-MONDAY MORNING PERIOD.

THE GFS/ECMWF/NAM ALL AMPLIFY THE INTERIOR WRN US RIDGE LATER ON
MONDAY. THIS ALLOWS A DEEPENING OF THE TROUGH OFF THE PAC NW COAST
WHICH SHOULD PUSH A FRONT THROUGH THE AREA. CHANCE POPS MONDAY
AFTERNOON ARE BOOSTED TO LIKELY BY MONDAY NIGHT. MERCER

.LONG TERM...THE GFS/ECMWF BOTH SHOW SPLIT FLOW AND SERIES OF MOSTLY
WEAK FRONTAL SYSTEMS TRAVERSING THE REGION TUESDAY THROUGH THE END
OF THE WEEK. TUESDAY LOOKS WET AND FRIDAY LOOKS TO HAVE THE BEST
CHANCE OF STAYING DRY. BUT TIMING IS NOT LIKELY TO BE VERY RELIABLE
GIVEN THE PROGRESSIVE SPLIT FLOW PATTERN. MERCER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LOW LEVEL SOUTHERLY FLOW WILL INCREASE AND COASTAL
STRATUS WILL COMBINE WITH THE FRONT JUST OFF THE COAST AND SPREAD
INLAND LATE THIS AFTERNOON AND EVENING. RAIN SHOULD DEVELOP ON THE
COAST LATE THIS AFTERNOON AND QUICKLY SPREAD INLAND THIS EVENING.
THE FRONT IS FAIRLY NARROW AND THE RAIN SHOULD TURN TO SCATTERED
SHOWERS QUICKLY OVERNIGHT. A PSCZ WILL PROBABLY FORM LATER TONIGHT
AND PERHAPS GIVE AN AREA OF SHOWERS AND LOW CIGS THROUGH SAT MORNING
BETWEEN THE EVERETT AREA AND THE NORTH PART OF HOOD CANAL. THE FLOW
ALOFT IS SW AND THE STABLE AIR MASS WILL BECOME UNSTABLE OVERNIGHT.

KSEA...A COLD FRONT WILL REACH SEATTLE THIS EVENING SO RAIN WILL
DEVELOP AND THEN SWITCH TO SHOWERS TONIGHT. A PSCZ IS LIKELY ON
SATURDAY BUT IT SHOULD REMAIN NORTH OF THE CITY SO THE WIND WILL
LIKELY REMAIN SW ON SAT.

&&

.MARINE...A COLD FRONT OVER THE COASTAL WATERS THIS AFTERNOON WILL
REACH THE INLAND WATERS THIS EVENING. SMALL CRAFT ADVISORIES ARE UP
FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH PRESSURE WILL BUILD
OVER THE REGION ON SATURDAY WITH WINDS EASING BY
AFTERNOON...ALTHOUGH THERE SHOULD CONTINUE TO BE A FAIRLY BRISK
WESTERLY IN THE STRAIT ON SATURDAY. AN APPROACHING FRONTAL BOUNDARY
WILL BRING INCREASING SOUTHERLIES TO THE COASTAL WATERS AGAIN LATER
SATURDAY THROUGH SUNDAY. A STRONG COLD FRONT SHOULD REACH THE AREA
MONDAY NIGHT.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML














000
FXUS66 KSEW 272139
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT FRI MAR 27 2015

.SYNOPSIS...RAIN WILL DEVELOP THIS EVENING...THEN CHANGE TO SHOWERS
AFTER MIDNIGHT BEHIND A FRONT. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS INTO BRITISH COLUMBIA AND NORTHWEST WASHINGTON OVER THE
WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY WITH
RAIN. A COOL SHOWERY UPPER TROUGH WILL BE OVER THE AREA TUESDAY.
SHOWERS MAY PERSIST THROUGH THE END OF NEXT WEEK.

&&

.SHORT TERM...THE KLGX COASTAL RADAR IS PICKING UP LIGHT RAIN NEAR
THE COAST. FORKS MEASURED THIS PAST HOUR SO THE FRONTAL TIMING
APPEARS ON TRACK. IR SATELLITE IMAGERY SHOWS THE BULK OF MOISTURE
AND LIFT TRACKING INTO SRN B.C. BUT THE TRAILING COLD FRONT NOW
INSIDE 130 W WILL BRING RAIN TO WRN WA THIS EVENING. ONSHORE FLOW
WILL PICK UP LATER TONIGHT BEHIND THE FRONT BRINGING ADDITIONAL
OROGRAPHICALLY ENHANCED RAIN AMOUNTS TO THE W/SW FACING MOUNTAIN
SLOPES. SHADOWING IN THE LEE OF THE OLYMPICS WILL REDUCE QPF AMOUNTS
JUST TO THE NE OF THE OLYMPICS...GENERALLY LESS THAN A COUPLE
TENTHS. A QUARTER TO LOCALLY ONE HALF INCH COULD FALL OVER THE
REMAINDER OF THE LOWLANDS. SNOW LEVELS WILL START OFF ELEVATED
AROUND 7000 FEET BUT SHOULD FALL OFF TO AROUND 5000 FEET AFTER
MIDNIGHT AND TO 4000 TO 4500 FEET SATURDAY MORNING. SINCE THE
HEAVIER PRECIPITATION WILL OCCUR BEFORE COLDEST AIR ARRIVES...SNOW
ACCUMULATIONS WILL GENERALLY BE ABOVE MOST THE PASSES AND LIMITED TO
A FEW INCHES AT HIGHER SPOTS LIKE MOUNT BAKER. STEVENS COULD
CONCEIVABLY PICK UP A COUPLE INCHES AT THE SUMMIT WHILE NO
ACCUMULATION IS EXPECTED LOWER DOWN AT SNOQUALMIE.

MODELS STILL SHOW A FAVORABLE PUGET SOUND CONVERGENCE ZONE PATTERN
FOR SATURDAY. WITH THE 850 MB FLOW REMAINING MORE WLY...ANY
CONVERGENCE ZONE SHOULD STAY N OF SEATTLE. IT WILL ALSO BECOME
BREEZY BEHIND THE FRONT. FOR GREATER PUGET SOUND...SW WINDS OF 15 TO
25 MPH ARE EXPECTED TO DEVELOP EARLY SATURDAY MORNING. SHOWERS
SHOULD TAPER OFF IN THE AFTERNOON WITH CHANCE POPS IN PLACE. IT WILL
BE COOLER WITH HIGHS IN THE MID 50S TO AROUND 60.

THE PATTERN BECOMES A BIT TRICKIER BY SUNDAY AND MONDAY. NEARLY
ZONAL MOIST FLOW BECOMES DIRECTED INTO SRN B.C. AND NW WA. THE
STREAM OF MOISTURE IS LIKELY TO MEANDER A LITTLE AND ANY SWD PUSH
WILL BRING COULD BRING RAIN INTO PUGET SOUND. OTHER MODELS LIKE THE
NAM-12 ARE FURTHER N WITH THE MOISTURE BAND SO I OPTED TO KEEP MOST
OF PUGET SOUND SWD DRY DURING THE SUNDAY-MONDAY MORNING PERIOD.

THE GFS/ECMWF/NAM ALL AMPLIFY THE INTERIOR WRN US RIDGE LATER ON
MONDAY. THIS ALLOWS A DEEPENING OF THE TROUGH OFF THE PAC NW COAST
WHICH SHOULD PUSH A FRONT THROUGH THE AREA. CHANCE POPS MONDAY
AFTERNOON ARE BOOSTED TO LIKELY BY MONDAY NIGHT. MERCER

.LONG TERM...THE GFS/ECMWF BOTH SHOW SPLIT FLOW AND SERIES OF MOSTLY
WEAK FRONTAL SYSTEMS TRAVERSING THE REGION TUESDAY THROUGH THE END
OF THE WEEK. TUESDAY LOOKS WET AND FRIDAY LOOKS TO HAVE THE BEST
CHANCE OF STAYING DRY. BUT TIMING IS NOT LIKELY TO BE VERY RELIABLE
GIVEN THE PROGRESSIVE SPLIT FLOW PATTERN. MERCER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LOW LEVEL SOUTHERLY FLOW WILL INCREASE AND COASTAL
STRATUS WILL COMBINE WITH THE FRONT JUST OFF THE COAST AND SPREAD
INLAND LATE THIS AFTERNOON AND EVENING. RAIN SHOULD DEVELOP ON THE
COAST LATE THIS AFTERNOON AND QUICKLY SPREAD INLAND THIS EVENING.
THE FRONT IS FAIRLY NARROW AND THE RAIN SHOULD TURN TO SCATTERED
SHOWERS QUICKLY OVERNIGHT. A PSCZ WILL PROBABLY FORM LATER TONIGHT
AND PERHAPS GIVE AN AREA OF SHOWERS AND LOW CIGS THROUGH SAT MORNING
BETWEEN THE EVERETT AREA AND THE NORTH PART OF HOOD CANAL. THE FLOW
ALOFT IS SW AND THE STABLE AIR MASS WILL BECOME UNSTABLE OVERNIGHT.

KSEA...A COLD FRONT WILL REACH SEATTLE THIS EVENING SO RAIN WILL
DEVELOP AND THEN SWITCH TO SHOWERS TONIGHT. A PSCZ IS LIKELY ON
SATURDAY BUT IT SHOULD REMAIN NORTH OF THE CITY SO THE WIND WILL
LIKELY REMAIN SW ON SAT.

&&

.MARINE...A COLD FRONT OVER THE COASTAL WATERS THIS AFTERNOON WILL
REACH THE INLAND WATERS THIS EVENING. SMALL CRAFT ADVISORIES ARE UP
FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH PRESSURE WILL BUILD
OVER THE REGION ON SATURDAY WITH WINDS EASING BY
AFTERNOON...ALTHOUGH THERE SHOULD CONTINUE TO BE A FAIRLY BRISK
WESTERLY IN THE STRAIT ON SATURDAY. AN APPROACHING FRONTAL BOUNDARY
WILL BRING INCREASING SOUTHERLIES TO THE COASTAL WATERS AGAIN LATER
SATURDAY THROUGH SUNDAY. A STRONG COLD FRONT SHOULD REACH THE AREA
MONDAY NIGHT.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML














000
FXUS66 KSEW 272139
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT FRI MAR 27 2015

.SYNOPSIS...RAIN WILL DEVELOP THIS EVENING...THEN CHANGE TO SHOWERS
AFTER MIDNIGHT BEHIND A FRONT. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS INTO BRITISH COLUMBIA AND NORTHWEST WASHINGTON OVER THE
WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY WITH
RAIN. A COOL SHOWERY UPPER TROUGH WILL BE OVER THE AREA TUESDAY.
SHOWERS MAY PERSIST THROUGH THE END OF NEXT WEEK.

&&

.SHORT TERM...THE KLGX COASTAL RADAR IS PICKING UP LIGHT RAIN NEAR
THE COAST. FORKS MEASURED THIS PAST HOUR SO THE FRONTAL TIMING
APPEARS ON TRACK. IR SATELLITE IMAGERY SHOWS THE BULK OF MOISTURE
AND LIFT TRACKING INTO SRN B.C. BUT THE TRAILING COLD FRONT NOW
INSIDE 130 W WILL BRING RAIN TO WRN WA THIS EVENING. ONSHORE FLOW
WILL PICK UP LATER TONIGHT BEHIND THE FRONT BRINGING ADDITIONAL
OROGRAPHICALLY ENHANCED RAIN AMOUNTS TO THE W/SW FACING MOUNTAIN
SLOPES. SHADOWING IN THE LEE OF THE OLYMPICS WILL REDUCE QPF AMOUNTS
JUST TO THE NE OF THE OLYMPICS...GENERALLY LESS THAN A COUPLE
TENTHS. A QUARTER TO LOCALLY ONE HALF INCH COULD FALL OVER THE
REMAINDER OF THE LOWLANDS. SNOW LEVELS WILL START OFF ELEVATED
AROUND 7000 FEET BUT SHOULD FALL OFF TO AROUND 5000 FEET AFTER
MIDNIGHT AND TO 4000 TO 4500 FEET SATURDAY MORNING. SINCE THE
HEAVIER PRECIPITATION WILL OCCUR BEFORE COLDEST AIR ARRIVES...SNOW
ACCUMULATIONS WILL GENERALLY BE ABOVE MOST THE PASSES AND LIMITED TO
A FEW INCHES AT HIGHER SPOTS LIKE MOUNT BAKER. STEVENS COULD
CONCEIVABLY PICK UP A COUPLE INCHES AT THE SUMMIT WHILE NO
ACCUMULATION IS EXPECTED LOWER DOWN AT SNOQUALMIE.

MODELS STILL SHOW A FAVORABLE PUGET SOUND CONVERGENCE ZONE PATTERN
FOR SATURDAY. WITH THE 850 MB FLOW REMAINING MORE WLY...ANY
CONVERGENCE ZONE SHOULD STAY N OF SEATTLE. IT WILL ALSO BECOME
BREEZY BEHIND THE FRONT. FOR GREATER PUGET SOUND...SW WINDS OF 15 TO
25 MPH ARE EXPECTED TO DEVELOP EARLY SATURDAY MORNING. SHOWERS
SHOULD TAPER OFF IN THE AFTERNOON WITH CHANCE POPS IN PLACE. IT WILL
BE COOLER WITH HIGHS IN THE MID 50S TO AROUND 60.

THE PATTERN BECOMES A BIT TRICKIER BY SUNDAY AND MONDAY. NEARLY
ZONAL MOIST FLOW BECOMES DIRECTED INTO SRN B.C. AND NW WA. THE
STREAM OF MOISTURE IS LIKELY TO MEANDER A LITTLE AND ANY SWD PUSH
WILL BRING COULD BRING RAIN INTO PUGET SOUND. OTHER MODELS LIKE THE
NAM-12 ARE FURTHER N WITH THE MOISTURE BAND SO I OPTED TO KEEP MOST
OF PUGET SOUND SWD DRY DURING THE SUNDAY-MONDAY MORNING PERIOD.

THE GFS/ECMWF/NAM ALL AMPLIFY THE INTERIOR WRN US RIDGE LATER ON
MONDAY. THIS ALLOWS A DEEPENING OF THE TROUGH OFF THE PAC NW COAST
WHICH SHOULD PUSH A FRONT THROUGH THE AREA. CHANCE POPS MONDAY
AFTERNOON ARE BOOSTED TO LIKELY BY MONDAY NIGHT. MERCER

.LONG TERM...THE GFS/ECMWF BOTH SHOW SPLIT FLOW AND SERIES OF MOSTLY
WEAK FRONTAL SYSTEMS TRAVERSING THE REGION TUESDAY THROUGH THE END
OF THE WEEK. TUESDAY LOOKS WET AND FRIDAY LOOKS TO HAVE THE BEST
CHANCE OF STAYING DRY. BUT TIMING IS NOT LIKELY TO BE VERY RELIABLE
GIVEN THE PROGRESSIVE SPLIT FLOW PATTERN. MERCER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LOW LEVEL SOUTHERLY FLOW WILL INCREASE AND COASTAL
STRATUS WILL COMBINE WITH THE FRONT JUST OFF THE COAST AND SPREAD
INLAND LATE THIS AFTERNOON AND EVENING. RAIN SHOULD DEVELOP ON THE
COAST LATE THIS AFTERNOON AND QUICKLY SPREAD INLAND THIS EVENING.
THE FRONT IS FAIRLY NARROW AND THE RAIN SHOULD TURN TO SCATTERED
SHOWERS QUICKLY OVERNIGHT. A PSCZ WILL PROBABLY FORM LATER TONIGHT
AND PERHAPS GIVE AN AREA OF SHOWERS AND LOW CIGS THROUGH SAT MORNING
BETWEEN THE EVERETT AREA AND THE NORTH PART OF HOOD CANAL. THE FLOW
ALOFT IS SW AND THE STABLE AIR MASS WILL BECOME UNSTABLE OVERNIGHT.

KSEA...A COLD FRONT WILL REACH SEATTLE THIS EVENING SO RAIN WILL
DEVELOP AND THEN SWITCH TO SHOWERS TONIGHT. A PSCZ IS LIKELY ON
SATURDAY BUT IT SHOULD REMAIN NORTH OF THE CITY SO THE WIND WILL
LIKELY REMAIN SW ON SAT.

&&

.MARINE...A COLD FRONT OVER THE COASTAL WATERS THIS AFTERNOON WILL
REACH THE INLAND WATERS THIS EVENING. SMALL CRAFT ADVISORIES ARE UP
FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH PRESSURE WILL BUILD
OVER THE REGION ON SATURDAY WITH WINDS EASING BY
AFTERNOON...ALTHOUGH THERE SHOULD CONTINUE TO BE A FAIRLY BRISK
WESTERLY IN THE STRAIT ON SATURDAY. AN APPROACHING FRONTAL BOUNDARY
WILL BRING INCREASING SOUTHERLIES TO THE COASTAL WATERS AGAIN LATER
SATURDAY THROUGH SUNDAY. A STRONG COLD FRONT SHOULD REACH THE AREA
MONDAY NIGHT.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML














000
FXUS66 KSEW 272139
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT FRI MAR 27 2015

.SYNOPSIS...RAIN WILL DEVELOP THIS EVENING...THEN CHANGE TO SHOWERS
AFTER MIDNIGHT BEHIND A FRONT. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS INTO BRITISH COLUMBIA AND NORTHWEST WASHINGTON OVER THE
WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY WITH
RAIN. A COOL SHOWERY UPPER TROUGH WILL BE OVER THE AREA TUESDAY.
SHOWERS MAY PERSIST THROUGH THE END OF NEXT WEEK.

&&

.SHORT TERM...THE KLGX COASTAL RADAR IS PICKING UP LIGHT RAIN NEAR
THE COAST. FORKS MEASURED THIS PAST HOUR SO THE FRONTAL TIMING
APPEARS ON TRACK. IR SATELLITE IMAGERY SHOWS THE BULK OF MOISTURE
AND LIFT TRACKING INTO SRN B.C. BUT THE TRAILING COLD FRONT NOW
INSIDE 130 W WILL BRING RAIN TO WRN WA THIS EVENING. ONSHORE FLOW
WILL PICK UP LATER TONIGHT BEHIND THE FRONT BRINGING ADDITIONAL
OROGRAPHICALLY ENHANCED RAIN AMOUNTS TO THE W/SW FACING MOUNTAIN
SLOPES. SHADOWING IN THE LEE OF THE OLYMPICS WILL REDUCE QPF AMOUNTS
JUST TO THE NE OF THE OLYMPICS...GENERALLY LESS THAN A COUPLE
TENTHS. A QUARTER TO LOCALLY ONE HALF INCH COULD FALL OVER THE
REMAINDER OF THE LOWLANDS. SNOW LEVELS WILL START OFF ELEVATED
AROUND 7000 FEET BUT SHOULD FALL OFF TO AROUND 5000 FEET AFTER
MIDNIGHT AND TO 4000 TO 4500 FEET SATURDAY MORNING. SINCE THE
HEAVIER PRECIPITATION WILL OCCUR BEFORE COLDEST AIR ARRIVES...SNOW
ACCUMULATIONS WILL GENERALLY BE ABOVE MOST THE PASSES AND LIMITED TO
A FEW INCHES AT HIGHER SPOTS LIKE MOUNT BAKER. STEVENS COULD
CONCEIVABLY PICK UP A COUPLE INCHES AT THE SUMMIT WHILE NO
ACCUMULATION IS EXPECTED LOWER DOWN AT SNOQUALMIE.

MODELS STILL SHOW A FAVORABLE PUGET SOUND CONVERGENCE ZONE PATTERN
FOR SATURDAY. WITH THE 850 MB FLOW REMAINING MORE WLY...ANY
CONVERGENCE ZONE SHOULD STAY N OF SEATTLE. IT WILL ALSO BECOME
BREEZY BEHIND THE FRONT. FOR GREATER PUGET SOUND...SW WINDS OF 15 TO
25 MPH ARE EXPECTED TO DEVELOP EARLY SATURDAY MORNING. SHOWERS
SHOULD TAPER OFF IN THE AFTERNOON WITH CHANCE POPS IN PLACE. IT WILL
BE COOLER WITH HIGHS IN THE MID 50S TO AROUND 60.

THE PATTERN BECOMES A BIT TRICKIER BY SUNDAY AND MONDAY. NEARLY
ZONAL MOIST FLOW BECOMES DIRECTED INTO SRN B.C. AND NW WA. THE
STREAM OF MOISTURE IS LIKELY TO MEANDER A LITTLE AND ANY SWD PUSH
WILL BRING COULD BRING RAIN INTO PUGET SOUND. OTHER MODELS LIKE THE
NAM-12 ARE FURTHER N WITH THE MOISTURE BAND SO I OPTED TO KEEP MOST
OF PUGET SOUND SWD DRY DURING THE SUNDAY-MONDAY MORNING PERIOD.

THE GFS/ECMWF/NAM ALL AMPLIFY THE INTERIOR WRN US RIDGE LATER ON
MONDAY. THIS ALLOWS A DEEPENING OF THE TROUGH OFF THE PAC NW COAST
WHICH SHOULD PUSH A FRONT THROUGH THE AREA. CHANCE POPS MONDAY
AFTERNOON ARE BOOSTED TO LIKELY BY MONDAY NIGHT. MERCER

.LONG TERM...THE GFS/ECMWF BOTH SHOW SPLIT FLOW AND SERIES OF MOSTLY
WEAK FRONTAL SYSTEMS TRAVERSING THE REGION TUESDAY THROUGH THE END
OF THE WEEK. TUESDAY LOOKS WET AND FRIDAY LOOKS TO HAVE THE BEST
CHANCE OF STAYING DRY. BUT TIMING IS NOT LIKELY TO BE VERY RELIABLE
GIVEN THE PROGRESSIVE SPLIT FLOW PATTERN. MERCER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LOW LEVEL SOUTHERLY FLOW WILL INCREASE AND COASTAL
STRATUS WILL COMBINE WITH THE FRONT JUST OFF THE COAST AND SPREAD
INLAND LATE THIS AFTERNOON AND EVENING. RAIN SHOULD DEVELOP ON THE
COAST LATE THIS AFTERNOON AND QUICKLY SPREAD INLAND THIS EVENING.
THE FRONT IS FAIRLY NARROW AND THE RAIN SHOULD TURN TO SCATTERED
SHOWERS QUICKLY OVERNIGHT. A PSCZ WILL PROBABLY FORM LATER TONIGHT
AND PERHAPS GIVE AN AREA OF SHOWERS AND LOW CIGS THROUGH SAT MORNING
BETWEEN THE EVERETT AREA AND THE NORTH PART OF HOOD CANAL. THE FLOW
ALOFT IS SW AND THE STABLE AIR MASS WILL BECOME UNSTABLE OVERNIGHT.

KSEA...A COLD FRONT WILL REACH SEATTLE THIS EVENING SO RAIN WILL
DEVELOP AND THEN SWITCH TO SHOWERS TONIGHT. A PSCZ IS LIKELY ON
SATURDAY BUT IT SHOULD REMAIN NORTH OF THE CITY SO THE WIND WILL
LIKELY REMAIN SW ON SAT.

&&

.MARINE...A COLD FRONT OVER THE COASTAL WATERS THIS AFTERNOON WILL
REACH THE INLAND WATERS THIS EVENING. SMALL CRAFT ADVISORIES ARE UP
FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH PRESSURE WILL BUILD
OVER THE REGION ON SATURDAY WITH WINDS EASING BY
AFTERNOON...ALTHOUGH THERE SHOULD CONTINUE TO BE A FAIRLY BRISK
WESTERLY IN THE STRAIT ON SATURDAY. AN APPROACHING FRONTAL BOUNDARY
WILL BRING INCREASING SOUTHERLIES TO THE COASTAL WATERS AGAIN LATER
SATURDAY THROUGH SUNDAY. A STRONG COLD FRONT SHOULD REACH THE AREA
MONDAY NIGHT.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML














000
FXUS66 KSEW 272139
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT FRI MAR 27 2015

.SYNOPSIS...RAIN WILL DEVELOP THIS EVENING...THEN CHANGE TO SHOWERS
AFTER MIDNIGHT BEHIND A FRONT. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS INTO BRITISH COLUMBIA AND NORTHWEST WASHINGTON OVER THE
WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY WITH
RAIN. A COOL SHOWERY UPPER TROUGH WILL BE OVER THE AREA TUESDAY.
SHOWERS MAY PERSIST THROUGH THE END OF NEXT WEEK.

&&

.SHORT TERM...THE KLGX COASTAL RADAR IS PICKING UP LIGHT RAIN NEAR
THE COAST. FORKS MEASURED THIS PAST HOUR SO THE FRONTAL TIMING
APPEARS ON TRACK. IR SATELLITE IMAGERY SHOWS THE BULK OF MOISTURE
AND LIFT TRACKING INTO SRN B.C. BUT THE TRAILING COLD FRONT NOW
INSIDE 130 W WILL BRING RAIN TO WRN WA THIS EVENING. ONSHORE FLOW
WILL PICK UP LATER TONIGHT BEHIND THE FRONT BRINGING ADDITIONAL
OROGRAPHICALLY ENHANCED RAIN AMOUNTS TO THE W/SW FACING MOUNTAIN
SLOPES. SHADOWING IN THE LEE OF THE OLYMPICS WILL REDUCE QPF AMOUNTS
JUST TO THE NE OF THE OLYMPICS...GENERALLY LESS THAN A COUPLE
TENTHS. A QUARTER TO LOCALLY ONE HALF INCH COULD FALL OVER THE
REMAINDER OF THE LOWLANDS. SNOW LEVELS WILL START OFF ELEVATED
AROUND 7000 FEET BUT SHOULD FALL OFF TO AROUND 5000 FEET AFTER
MIDNIGHT AND TO 4000 TO 4500 FEET SATURDAY MORNING. SINCE THE
HEAVIER PRECIPITATION WILL OCCUR BEFORE COLDEST AIR ARRIVES...SNOW
ACCUMULATIONS WILL GENERALLY BE ABOVE MOST THE PASSES AND LIMITED TO
A FEW INCHES AT HIGHER SPOTS LIKE MOUNT BAKER. STEVENS COULD
CONCEIVABLY PICK UP A COUPLE INCHES AT THE SUMMIT WHILE NO
ACCUMULATION IS EXPECTED LOWER DOWN AT SNOQUALMIE.

MODELS STILL SHOW A FAVORABLE PUGET SOUND CONVERGENCE ZONE PATTERN
FOR SATURDAY. WITH THE 850 MB FLOW REMAINING MORE WLY...ANY
CONVERGENCE ZONE SHOULD STAY N OF SEATTLE. IT WILL ALSO BECOME
BREEZY BEHIND THE FRONT. FOR GREATER PUGET SOUND...SW WINDS OF 15 TO
25 MPH ARE EXPECTED TO DEVELOP EARLY SATURDAY MORNING. SHOWERS
SHOULD TAPER OFF IN THE AFTERNOON WITH CHANCE POPS IN PLACE. IT WILL
BE COOLER WITH HIGHS IN THE MID 50S TO AROUND 60.

THE PATTERN BECOMES A BIT TRICKIER BY SUNDAY AND MONDAY. NEARLY
ZONAL MOIST FLOW BECOMES DIRECTED INTO SRN B.C. AND NW WA. THE
STREAM OF MOISTURE IS LIKELY TO MEANDER A LITTLE AND ANY SWD PUSH
WILL BRING COULD BRING RAIN INTO PUGET SOUND. OTHER MODELS LIKE THE
NAM-12 ARE FURTHER N WITH THE MOISTURE BAND SO I OPTED TO KEEP MOST
OF PUGET SOUND SWD DRY DURING THE SUNDAY-MONDAY MORNING PERIOD.

THE GFS/ECMWF/NAM ALL AMPLIFY THE INTERIOR WRN US RIDGE LATER ON
MONDAY. THIS ALLOWS A DEEPENING OF THE TROUGH OFF THE PAC NW COAST
WHICH SHOULD PUSH A FRONT THROUGH THE AREA. CHANCE POPS MONDAY
AFTERNOON ARE BOOSTED TO LIKELY BY MONDAY NIGHT. MERCER

.LONG TERM...THE GFS/ECMWF BOTH SHOW SPLIT FLOW AND SERIES OF MOSTLY
WEAK FRONTAL SYSTEMS TRAVERSING THE REGION TUESDAY THROUGH THE END
OF THE WEEK. TUESDAY LOOKS WET AND FRIDAY LOOKS TO HAVE THE BEST
CHANCE OF STAYING DRY. BUT TIMING IS NOT LIKELY TO BE VERY RELIABLE
GIVEN THE PROGRESSIVE SPLIT FLOW PATTERN. MERCER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LOW LEVEL SOUTHERLY FLOW WILL INCREASE AND COASTAL
STRATUS WILL COMBINE WITH THE FRONT JUST OFF THE COAST AND SPREAD
INLAND LATE THIS AFTERNOON AND EVENING. RAIN SHOULD DEVELOP ON THE
COAST LATE THIS AFTERNOON AND QUICKLY SPREAD INLAND THIS EVENING.
THE FRONT IS FAIRLY NARROW AND THE RAIN SHOULD TURN TO SCATTERED
SHOWERS QUICKLY OVERNIGHT. A PSCZ WILL PROBABLY FORM LATER TONIGHT
AND PERHAPS GIVE AN AREA OF SHOWERS AND LOW CIGS THROUGH SAT MORNING
BETWEEN THE EVERETT AREA AND THE NORTH PART OF HOOD CANAL. THE FLOW
ALOFT IS SW AND THE STABLE AIR MASS WILL BECOME UNSTABLE OVERNIGHT.

KSEA...A COLD FRONT WILL REACH SEATTLE THIS EVENING SO RAIN WILL
DEVELOP AND THEN SWITCH TO SHOWERS TONIGHT. A PSCZ IS LIKELY ON
SATURDAY BUT IT SHOULD REMAIN NORTH OF THE CITY SO THE WIND WILL
LIKELY REMAIN SW ON SAT.

&&

.MARINE...A COLD FRONT OVER THE COASTAL WATERS THIS AFTERNOON WILL
REACH THE INLAND WATERS THIS EVENING. SMALL CRAFT ADVISORIES ARE UP
FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH PRESSURE WILL BUILD
OVER THE REGION ON SATURDAY WITH WINDS EASING BY
AFTERNOON...ALTHOUGH THERE SHOULD CONTINUE TO BE A FAIRLY BRISK
WESTERLY IN THE STRAIT ON SATURDAY. AN APPROACHING FRONTAL BOUNDARY
WILL BRING INCREASING SOUTHERLIES TO THE COASTAL WATERS AGAIN LATER
SATURDAY THROUGH SUNDAY. A STRONG COLD FRONT SHOULD REACH THE AREA
MONDAY NIGHT.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML















000
FXUS66 KOTX 272133
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
233 PM PDT FRI MAR 27 2015

.SYNOPSIS...
A fast moving cold front will arrive tonight bringing widespread
showers, gusty winds, and the potential for thunderstorms to
southeast Washington and portions of the Idaho Panhandle. Saturday
will be quite windy with gusts of 40 mph possible over Palouse,
West Plains, and Upper Columbia Basin. The weather Sunday and
Monday should be mild and relatively dry. Another fast moving
front on Tuesday will bring more showers and wind.

&&

.DISCUSSION...
Tonight and Sat...

Thunder and showers: We backed off the pcpn and thunder potential
through late afternoon to early evening as it looks like much of
the surface will remain capped. Showers and thunder will then
rapidly develop and spread NE across much of Ern and N Idaho as
the cold front and upper trough (currently just offshore) moves
inland. Convective mode: Shear and thermodynamic profiles show the
main threat will be very gusty winds, with any thunderstorm
outflow augmenting the already strong synoptic-scale pressure
gradient dry slot winds overnight. Severe gusts (gust to 58 mph)
is a possibility, but not likely with the strongest embedded
thunderstorms. Steering flow for these cells alone should be at
least 30-35 kts with this embedded thunder. Small hail is
possible. The challenge tonight will be how much thunder is
generated across Nrn Wa late tonight as the vort max (and
associated cold pool and steep mid-level lapse rates) translate
east rather quickly. If this was occurring during peak heating,
thunder would be a certainty.

Winds: We`ll issue a wind advisory with the passage of the cold
front this evening through midday Sat for especially the Palouse
area as a significant mid-level dry slot surges across Ern Wa.
Initially the heavy showers and thunder will help to mix stronger
winds aloft (35-40 kts) to the sfc, then strengthening pressure
gradients and cold advection overnight following fropa will help
to transfer 45-50kt winds aloft in a nearly unidirectional
westerly vertical wind profile.bz

Saturday night through Friday...A gulf of Alaska area of low
pressure juxtaposed against a weak ridge of high pressure with
axis placement generally to the east of Northern Idaho allows for
a persistent flux of moisture through an elongated baroclinic band
located between the low and the ridge. The placement of the
baroclinic band is far enough to the north through Monday so as to
allow for a dry forecast for most locations with the exception of
locations close to the British Columbia Border and the North
Cascade Crest. Another cold front wipes out the ridge Monday night
into Tuesday. As it does this is will spread precipitation from
west to east and allow for Windy Conditions during and after its
passage Tuesday. From about Tuesday night on Through Thursday the
jet stream straddles the forecast area along the southern Border
which allows for a conditionally unstable airmass and associated
cold pool aloft to overhang Eastern Washington and Northern Idaho
through most if not all of this interval which allows for a cool
forecast with mainly diurnally driven showers and the possibility
of some frost with more widespread temperatures just below
freezing Wednesday night. By Friday the trof aloft exits to the
east and leaves a more flat zonal flow with the jet stream in
closer proximity which would suggest a further decrease in pops
but perhaps a return of breezy conditions as the jet stream gets
positioned closer overhead of Eastern Washington and Northern
Idaho. /Pelatti

&&

.AVIATION...
18Z TAFS: A vigorous early spring cold front will collide with an
unseasonably warm and moist air mass tonight bringing widespread
showers and embedded thunderstorms to north Idaho and the eastern
third of Washington. Strong winds will also develop behind the
cold front after 07-09z and persist into Sunday afternoon. Gusts
of 30-38kts will be possible in Spokane, Coeur D`Alene, and
especially Pullman. bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  60  39  59  40  62 /  80  40   0  10  10  10
Coeur d`Alene  45  59  38  59  38  63 /  90  70   0  10  10  10
Pullman        46  58  40  58  41  64 /  90  40   0  10  10  10
Lewiston       51  64  41  63  42  68 /  90  20   0   0  10  10
Colville       44  63  39  60  39  63 /  70  60   0  10  10  10
Sandpoint      45  56  38  57  36  62 / 100  90   0  10  10  10
Kellogg        42  53  36  56  38  60 / 100 100   0  10  10  10
Moses Lake     48  65  40  65  39  67 /  10  10   0   0  10  10
Wenatchee      48  65  43  65  44  68 /  10  10   0  10  10  10
Omak           44  65  39  64  39  66 /  40  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Idaho Palouse.

WA...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Lower Garfield and Asotin Counties-Washington Palouse.

&&

$$





000
FXUS66 KOTX 272133
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
233 PM PDT FRI MAR 27 2015

.SYNOPSIS...
A fast moving cold front will arrive tonight bringing widespread
showers, gusty winds, and the potential for thunderstorms to
southeast Washington and portions of the Idaho Panhandle. Saturday
will be quite windy with gusts of 40 mph possible over Palouse,
West Plains, and Upper Columbia Basin. The weather Sunday and
Monday should be mild and relatively dry. Another fast moving
front on Tuesday will bring more showers and wind.

&&

.DISCUSSION...
Tonight and Sat...

Thunder and showers: We backed off the pcpn and thunder potential
through late afternoon to early evening as it looks like much of
the surface will remain capped. Showers and thunder will then
rapidly develop and spread NE across much of Ern and N Idaho as
the cold front and upper trough (currently just offshore) moves
inland. Convective mode: Shear and thermodynamic profiles show the
main threat will be very gusty winds, with any thunderstorm
outflow augmenting the already strong synoptic-scale pressure
gradient dry slot winds overnight. Severe gusts (gust to 58 mph)
is a possibility, but not likely with the strongest embedded
thunderstorms. Steering flow for these cells alone should be at
least 30-35 kts with this embedded thunder. Small hail is
possible. The challenge tonight will be how much thunder is
generated across Nrn Wa late tonight as the vort max (and
associated cold pool and steep mid-level lapse rates) translate
east rather quickly. If this was occurring during peak heating,
thunder would be a certainty.

Winds: We`ll issue a wind advisory with the passage of the cold
front this evening through midday Sat for especially the Palouse
area as a significant mid-level dry slot surges across Ern Wa.
Initially the heavy showers and thunder will help to mix stronger
winds aloft (35-40 kts) to the sfc, then strengthening pressure
gradients and cold advection overnight following fropa will help
to transfer 45-50kt winds aloft in a nearly unidirectional
westerly vertical wind profile.bz

Saturday night through Friday...A gulf of Alaska area of low
pressure juxtaposed against a weak ridge of high pressure with
axis placement generally to the east of Northern Idaho allows for
a persistent flux of moisture through an elongated baroclinic band
located between the low and the ridge. The placement of the
baroclinic band is far enough to the north through Monday so as to
allow for a dry forecast for most locations with the exception of
locations close to the British Columbia Border and the North
Cascade Crest. Another cold front wipes out the ridge Monday night
into Tuesday. As it does this is will spread precipitation from
west to east and allow for Windy Conditions during and after its
passage Tuesday. From about Tuesday night on Through Thursday the
jet stream straddles the forecast area along the southern Border
which allows for a conditionally unstable airmass and associated
cold pool aloft to overhang Eastern Washington and Northern Idaho
through most if not all of this interval which allows for a cool
forecast with mainly diurnally driven showers and the possibility
of some frost with more widespread temperatures just below
freezing Wednesday night. By Friday the trof aloft exits to the
east and leaves a more flat zonal flow with the jet stream in
closer proximity which would suggest a further decrease in pops
but perhaps a return of breezy conditions as the jet stream gets
positioned closer overhead of Eastern Washington and Northern
Idaho. /Pelatti

&&

.AVIATION...
18Z TAFS: A vigorous early spring cold front will collide with an
unseasonably warm and moist air mass tonight bringing widespread
showers and embedded thunderstorms to north Idaho and the eastern
third of Washington. Strong winds will also develop behind the
cold front after 07-09z and persist into Sunday afternoon. Gusts
of 30-38kts will be possible in Spokane, Coeur D`Alene, and
especially Pullman. bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  60  39  59  40  62 /  80  40   0  10  10  10
Coeur d`Alene  45  59  38  59  38  63 /  90  70   0  10  10  10
Pullman        46  58  40  58  41  64 /  90  40   0  10  10  10
Lewiston       51  64  41  63  42  68 /  90  20   0   0  10  10
Colville       44  63  39  60  39  63 /  70  60   0  10  10  10
Sandpoint      45  56  38  57  36  62 / 100  90   0  10  10  10
Kellogg        42  53  36  56  38  60 / 100 100   0  10  10  10
Moses Lake     48  65  40  65  39  67 /  10  10   0   0  10  10
Wenatchee      48  65  43  65  44  68 /  10  10   0  10  10  10
Omak           44  65  39  64  39  66 /  40  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Idaho Palouse.

WA...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Lower Garfield and Asotin Counties-Washington Palouse.

&&

$$





000
FXUS66 KOTX 272133
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
233 PM PDT FRI MAR 27 2015

.SYNOPSIS...
A fast moving cold front will arrive tonight bringing widespread
showers, gusty winds, and the potential for thunderstorms to
southeast Washington and portions of the Idaho Panhandle. Saturday
will be quite windy with gusts of 40 mph possible over Palouse,
West Plains, and Upper Columbia Basin. The weather Sunday and
Monday should be mild and relatively dry. Another fast moving
front on Tuesday will bring more showers and wind.

&&

.DISCUSSION...
Tonight and Sat...

Thunder and showers: We backed off the pcpn and thunder potential
through late afternoon to early evening as it looks like much of
the surface will remain capped. Showers and thunder will then
rapidly develop and spread NE across much of Ern and N Idaho as
the cold front and upper trough (currently just offshore) moves
inland. Convective mode: Shear and thermodynamic profiles show the
main threat will be very gusty winds, with any thunderstorm
outflow augmenting the already strong synoptic-scale pressure
gradient dry slot winds overnight. Severe gusts (gust to 58 mph)
is a possibility, but not likely with the strongest embedded
thunderstorms. Steering flow for these cells alone should be at
least 30-35 kts with this embedded thunder. Small hail is
possible. The challenge tonight will be how much thunder is
generated across Nrn Wa late tonight as the vort max (and
associated cold pool and steep mid-level lapse rates) translate
east rather quickly. If this was occurring during peak heating,
thunder would be a certainty.

Winds: We`ll issue a wind advisory with the passage of the cold
front this evening through midday Sat for especially the Palouse
area as a significant mid-level dry slot surges across Ern Wa.
Initially the heavy showers and thunder will help to mix stronger
winds aloft (35-40 kts) to the sfc, then strengthening pressure
gradients and cold advection overnight following fropa will help
to transfer 45-50kt winds aloft in a nearly unidirectional
westerly vertical wind profile.bz

Saturday night through Friday...A gulf of Alaska area of low
pressure juxtaposed against a weak ridge of high pressure with
axis placement generally to the east of Northern Idaho allows for
a persistent flux of moisture through an elongated baroclinic band
located between the low and the ridge. The placement of the
baroclinic band is far enough to the north through Monday so as to
allow for a dry forecast for most locations with the exception of
locations close to the British Columbia Border and the North
Cascade Crest. Another cold front wipes out the ridge Monday night
into Tuesday. As it does this is will spread precipitation from
west to east and allow for Windy Conditions during and after its
passage Tuesday. From about Tuesday night on Through Thursday the
jet stream straddles the forecast area along the southern Border
which allows for a conditionally unstable airmass and associated
cold pool aloft to overhang Eastern Washington and Northern Idaho
through most if not all of this interval which allows for a cool
forecast with mainly diurnally driven showers and the possibility
of some frost with more widespread temperatures just below
freezing Wednesday night. By Friday the trof aloft exits to the
east and leaves a more flat zonal flow with the jet stream in
closer proximity which would suggest a further decrease in pops
but perhaps a return of breezy conditions as the jet stream gets
positioned closer overhead of Eastern Washington and Northern
Idaho. /Pelatti

&&

.AVIATION...
18Z TAFS: A vigorous early spring cold front will collide with an
unseasonably warm and moist air mass tonight bringing widespread
showers and embedded thunderstorms to north Idaho and the eastern
third of Washington. Strong winds will also develop behind the
cold front after 07-09z and persist into Sunday afternoon. Gusts
of 30-38kts will be possible in Spokane, Coeur D`Alene, and
especially Pullman. bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  60  39  59  40  62 /  80  40   0  10  10  10
Coeur d`Alene  45  59  38  59  38  63 /  90  70   0  10  10  10
Pullman        46  58  40  58  41  64 /  90  40   0  10  10  10
Lewiston       51  64  41  63  42  68 /  90  20   0   0  10  10
Colville       44  63  39  60  39  63 /  70  60   0  10  10  10
Sandpoint      45  56  38  57  36  62 / 100  90   0  10  10  10
Kellogg        42  53  36  56  38  60 / 100 100   0  10  10  10
Moses Lake     48  65  40  65  39  67 /  10  10   0   0  10  10
Wenatchee      48  65  43  65  44  68 /  10  10   0  10  10  10
Omak           44  65  39  64  39  66 /  40  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Idaho Palouse.

WA...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Lower Garfield and Asotin Counties-Washington Palouse.

&&

$$





000
FXUS66 KOTX 272133
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
233 PM PDT FRI MAR 27 2015

.SYNOPSIS...
A fast moving cold front will arrive tonight bringing widespread
showers, gusty winds, and the potential for thunderstorms to
southeast Washington and portions of the Idaho Panhandle. Saturday
will be quite windy with gusts of 40 mph possible over Palouse,
West Plains, and Upper Columbia Basin. The weather Sunday and
Monday should be mild and relatively dry. Another fast moving
front on Tuesday will bring more showers and wind.

&&

.DISCUSSION...
Tonight and Sat...

Thunder and showers: We backed off the pcpn and thunder potential
through late afternoon to early evening as it looks like much of
the surface will remain capped. Showers and thunder will then
rapidly develop and spread NE across much of Ern and N Idaho as
the cold front and upper trough (currently just offshore) moves
inland. Convective mode: Shear and thermodynamic profiles show the
main threat will be very gusty winds, with any thunderstorm
outflow augmenting the already strong synoptic-scale pressure
gradient dry slot winds overnight. Severe gusts (gust to 58 mph)
is a possibility, but not likely with the strongest embedded
thunderstorms. Steering flow for these cells alone should be at
least 30-35 kts with this embedded thunder. Small hail is
possible. The challenge tonight will be how much thunder is
generated across Nrn Wa late tonight as the vort max (and
associated cold pool and steep mid-level lapse rates) translate
east rather quickly. If this was occurring during peak heating,
thunder would be a certainty.

Winds: We`ll issue a wind advisory with the passage of the cold
front this evening through midday Sat for especially the Palouse
area as a significant mid-level dry slot surges across Ern Wa.
Initially the heavy showers and thunder will help to mix stronger
winds aloft (35-40 kts) to the sfc, then strengthening pressure
gradients and cold advection overnight following fropa will help
to transfer 45-50kt winds aloft in a nearly unidirectional
westerly vertical wind profile.bz

Saturday night through Friday...A gulf of Alaska area of low
pressure juxtaposed against a weak ridge of high pressure with
axis placement generally to the east of Northern Idaho allows for
a persistent flux of moisture through an elongated baroclinic band
located between the low and the ridge. The placement of the
baroclinic band is far enough to the north through Monday so as to
allow for a dry forecast for most locations with the exception of
locations close to the British Columbia Border and the North
Cascade Crest. Another cold front wipes out the ridge Monday night
into Tuesday. As it does this is will spread precipitation from
west to east and allow for Windy Conditions during and after its
passage Tuesday. From about Tuesday night on Through Thursday the
jet stream straddles the forecast area along the southern Border
which allows for a conditionally unstable airmass and associated
cold pool aloft to overhang Eastern Washington and Northern Idaho
through most if not all of this interval which allows for a cool
forecast with mainly diurnally driven showers and the possibility
of some frost with more widespread temperatures just below
freezing Wednesday night. By Friday the trof aloft exits to the
east and leaves a more flat zonal flow with the jet stream in
closer proximity which would suggest a further decrease in pops
but perhaps a return of breezy conditions as the jet stream gets
positioned closer overhead of Eastern Washington and Northern
Idaho. /Pelatti

&&

.AVIATION...
18Z TAFS: A vigorous early spring cold front will collide with an
unseasonably warm and moist air mass tonight bringing widespread
showers and embedded thunderstorms to north Idaho and the eastern
third of Washington. Strong winds will also develop behind the
cold front after 07-09z and persist into Sunday afternoon. Gusts
of 30-38kts will be possible in Spokane, Coeur D`Alene, and
especially Pullman. bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  60  39  59  40  62 /  80  40   0  10  10  10
Coeur d`Alene  45  59  38  59  38  63 /  90  70   0  10  10  10
Pullman        46  58  40  58  41  64 /  90  40   0  10  10  10
Lewiston       51  64  41  63  42  68 /  90  20   0   0  10  10
Colville       44  63  39  60  39  63 /  70  60   0  10  10  10
Sandpoint      45  56  38  57  36  62 / 100  90   0  10  10  10
Kellogg        42  53  36  56  38  60 / 100 100   0  10  10  10
Moses Lake     48  65  40  65  39  67 /  10  10   0   0  10  10
Wenatchee      48  65  43  65  44  68 /  10  10   0  10  10  10
Omak           44  65  39  64  39  66 /  40  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Idaho Palouse.

WA...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Lower Garfield and Asotin Counties-Washington Palouse.

&&

$$





000
FXUS66 KOTX 272133
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
233 PM PDT FRI MAR 27 2015

.SYNOPSIS...
A fast moving cold front will arrive tonight bringing widespread
showers, gusty winds, and the potential for thunderstorms to
southeast Washington and portions of the Idaho Panhandle. Saturday
will be quite windy with gusts of 40 mph possible over Palouse,
West Plains, and Upper Columbia Basin. The weather Sunday and
Monday should be mild and relatively dry. Another fast moving
front on Tuesday will bring more showers and wind.

&&

.DISCUSSION...
Tonight and Sat...

Thunder and showers: We backed off the pcpn and thunder potential
through late afternoon to early evening as it looks like much of
the surface will remain capped. Showers and thunder will then
rapidly develop and spread NE across much of Ern and N Idaho as
the cold front and upper trough (currently just offshore) moves
inland. Convective mode: Shear and thermodynamic profiles show the
main threat will be very gusty winds, with any thunderstorm
outflow augmenting the already strong synoptic-scale pressure
gradient dry slot winds overnight. Severe gusts (gust to 58 mph)
is a possibility, but not likely with the strongest embedded
thunderstorms. Steering flow for these cells alone should be at
least 30-35 kts with this embedded thunder. Small hail is
possible. The challenge tonight will be how much thunder is
generated across Nrn Wa late tonight as the vort max (and
associated cold pool and steep mid-level lapse rates) translate
east rather quickly. If this was occurring during peak heating,
thunder would be a certainty.

Winds: We`ll issue a wind advisory with the passage of the cold
front this evening through midday Sat for especially the Palouse
area as a significant mid-level dry slot surges across Ern Wa.
Initially the heavy showers and thunder will help to mix stronger
winds aloft (35-40 kts) to the sfc, then strengthening pressure
gradients and cold advection overnight following fropa will help
to transfer 45-50kt winds aloft in a nearly unidirectional
westerly vertical wind profile.bz

Saturday night through Friday...A gulf of Alaska area of low
pressure juxtaposed against a weak ridge of high pressure with
axis placement generally to the east of Northern Idaho allows for
a persistent flux of moisture through an elongated baroclinic band
located between the low and the ridge. The placement of the
baroclinic band is far enough to the north through Monday so as to
allow for a dry forecast for most locations with the exception of
locations close to the British Columbia Border and the North
Cascade Crest. Another cold front wipes out the ridge Monday night
into Tuesday. As it does this is will spread precipitation from
west to east and allow for Windy Conditions during and after its
passage Tuesday. From about Tuesday night on Through Thursday the
jet stream straddles the forecast area along the southern Border
which allows for a conditionally unstable airmass and associated
cold pool aloft to overhang Eastern Washington and Northern Idaho
through most if not all of this interval which allows for a cool
forecast with mainly diurnally driven showers and the possibility
of some frost with more widespread temperatures just below
freezing Wednesday night. By Friday the trof aloft exits to the
east and leaves a more flat zonal flow with the jet stream in
closer proximity which would suggest a further decrease in pops
but perhaps a return of breezy conditions as the jet stream gets
positioned closer overhead of Eastern Washington and Northern
Idaho. /Pelatti

&&

.AVIATION...
18Z TAFS: A vigorous early spring cold front will collide with an
unseasonably warm and moist air mass tonight bringing widespread
showers and embedded thunderstorms to north Idaho and the eastern
third of Washington. Strong winds will also develop behind the
cold front after 07-09z and persist into Sunday afternoon. Gusts
of 30-38kts will be possible in Spokane, Coeur D`Alene, and
especially Pullman. bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        47  60  39  59  40  62 /  80  40   0  10  10  10
Coeur d`Alene  45  59  38  59  38  63 /  90  70   0  10  10  10
Pullman        46  58  40  58  41  64 /  90  40   0  10  10  10
Lewiston       51  64  41  63  42  68 /  90  20   0   0  10  10
Colville       44  63  39  60  39  63 /  70  60   0  10  10  10
Sandpoint      45  56  38  57  36  62 / 100  90   0  10  10  10
Kellogg        42  53  36  56  38  60 / 100 100   0  10  10  10
Moses Lake     48  65  40  65  39  67 /  10  10   0   0  10  10
Wenatchee      48  65  43  65  44  68 /  10  10   0  10  10  10
Omak           44  65  39  64  39  66 /  40  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Idaho Palouse.

WA...Wind Advisory from 11 PM this evening to 11 AM PDT Saturday for
     Lower Garfield and Asotin Counties-Washington Palouse.

&&

$$





000
FXUS66 KOTX 271721
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1021 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhandle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...
Rest of today and into tonight: We`ve adjusted the fcst to
prolong the valley fog for the NE Wa mtn valley and N Id
Panhandle zones into midday based on area fcst soundings and
current obs.

High temps: It still looks to be on track to reach record or near
record high temps for the Upper Columbia Basin (includes Moses
Lake)...Palouse...Lewiston...and the Wenatchee to Okanogan Valley
areas.

Thunder and showers: We backed off the pcpn and thunder potential
through this afternoon as it looks like much of the surface will
remain capped until at least late afternoon. Showers and thunder
will then rapidly develop and spread NE across much of Ern and N
Idaho this evening as the cold front and upper trough (currently
just offshore) moves inland. Convective mode: The main threat
certainly will be very gusty winds, with any thunderstorm outflow
augmenting the already strong synoptic-scale pressure gradient
dry slot winds. Severe gusts (gust to 58 mph) is not out of the
question with any of the stronger embedded thunderstorms. Steering
flow alone should be at least 30-35 kts with this embedded
thunder.

Winds: We`ll be strongly contemplating a wind advisory with the
passage of the cold front this evening through midday Sat for
especially the Palouse area as a significant mid-level dry slot
surges across Ern Wa. Initially the heavy showers and thunder will
help to mix stronger winds aloft (40 kts) to the sfc, then
strengthening pressure gradients and cold advection overnight with
the fropa will help to transfer 45-50kt winds aloft in a nearly
unidirectional westerly vertical wind profile.bz

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonably warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       68  44  63  39  60  39 /   0  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 271721
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1021 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhandle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...
Rest of today and into tonight: We`ve adjusted the fcst to
prolong the valley fog for the NE Wa mtn valley and N Id
Panhandle zones into midday based on area fcst soundings and
current obs.

High temps: It still looks to be on track to reach record or near
record high temps for the Upper Columbia Basin (includes Moses
Lake)...Palouse...Lewiston...and the Wenatchee to Okanogan Valley
areas.

Thunder and showers: We backed off the pcpn and thunder potential
through this afternoon as it looks like much of the surface will
remain capped until at least late afternoon. Showers and thunder
will then rapidly develop and spread NE across much of Ern and N
Idaho this evening as the cold front and upper trough (currently
just offshore) moves inland. Convective mode: The main threat
certainly will be very gusty winds, with any thunderstorm outflow
augmenting the already strong synoptic-scale pressure gradient
dry slot winds. Severe gusts (gust to 58 mph) is not out of the
question with any of the stronger embedded thunderstorms. Steering
flow alone should be at least 30-35 kts with this embedded
thunder.

Winds: We`ll be strongly contemplating a wind advisory with the
passage of the cold front this evening through midday Sat for
especially the Palouse area as a significant mid-level dry slot
surges across Ern Wa. Initially the heavy showers and thunder will
help to mix stronger winds aloft (40 kts) to the sfc, then
strengthening pressure gradients and cold advection overnight with
the fropa will help to transfer 45-50kt winds aloft in a nearly
unidirectional westerly vertical wind profile.bz

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonably warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       68  44  63  39  60  39 /   0  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 271721
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1021 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhandle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...
Rest of today and into tonight: We`ve adjusted the fcst to
prolong the valley fog for the NE Wa mtn valley and N Id
Panhandle zones into midday based on area fcst soundings and
current obs.

High temps: It still looks to be on track to reach record or near
record high temps for the Upper Columbia Basin (includes Moses
Lake)...Palouse...Lewiston...and the Wenatchee to Okanogan Valley
areas.

Thunder and showers: We backed off the pcpn and thunder potential
through this afternoon as it looks like much of the surface will
remain capped until at least late afternoon. Showers and thunder
will then rapidly develop and spread NE across much of Ern and N
Idaho this evening as the cold front and upper trough (currently
just offshore) moves inland. Convective mode: The main threat
certainly will be very gusty winds, with any thunderstorm outflow
augmenting the already strong synoptic-scale pressure gradient
dry slot winds. Severe gusts (gust to 58 mph) is not out of the
question with any of the stronger embedded thunderstorms. Steering
flow alone should be at least 30-35 kts with this embedded
thunder.

Winds: We`ll be strongly contemplating a wind advisory with the
passage of the cold front this evening through midday Sat for
especially the Palouse area as a significant mid-level dry slot
surges across Ern Wa. Initially the heavy showers and thunder will
help to mix stronger winds aloft (40 kts) to the sfc, then
strengthening pressure gradients and cold advection overnight with
the fropa will help to transfer 45-50kt winds aloft in a nearly
unidirectional westerly vertical wind profile.bz

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonably warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       68  44  63  39  60  39 /   0  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 271721
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1021 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhandle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...
Rest of today and into tonight: We`ve adjusted the fcst to
prolong the valley fog for the NE Wa mtn valley and N Id
Panhandle zones into midday based on area fcst soundings and
current obs.

High temps: It still looks to be on track to reach record or near
record high temps for the Upper Columbia Basin (includes Moses
Lake)...Palouse...Lewiston...and the Wenatchee to Okanogan Valley
areas.

Thunder and showers: We backed off the pcpn and thunder potential
through this afternoon as it looks like much of the surface will
remain capped until at least late afternoon. Showers and thunder
will then rapidly develop and spread NE across much of Ern and N
Idaho this evening as the cold front and upper trough (currently
just offshore) moves inland. Convective mode: The main threat
certainly will be very gusty winds, with any thunderstorm outflow
augmenting the already strong synoptic-scale pressure gradient
dry slot winds. Severe gusts (gust to 58 mph) is not out of the
question with any of the stronger embedded thunderstorms. Steering
flow alone should be at least 30-35 kts with this embedded
thunder.

Winds: We`ll be strongly contemplating a wind advisory with the
passage of the cold front this evening through midday Sat for
especially the Palouse area as a significant mid-level dry slot
surges across Ern Wa. Initially the heavy showers and thunder will
help to mix stronger winds aloft (40 kts) to the sfc, then
strengthening pressure gradients and cold advection overnight with
the fropa will help to transfer 45-50kt winds aloft in a nearly
unidirectional westerly vertical wind profile.bz

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonably warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       68  44  63  39  60  39 /   0  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KSEW 271611
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 AM PDT FRI MAR 27 2015

.SYNOPSIS...A FRONT WILL BRING RAIN TO THE COAST LATE THIS AFTERNOON
AND TO THE INTERIOR BY THIS EVENING. A WEAK UPPER RIDGE WILL STEER
WEATHER SYSTEMS MOSTLY INTO BRITISH COLUMBIA OVER THE WEEKEND. A
COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY. A COOL SHOWERY
UPPER TROUGH WILL BE OVER THE AREA TUESDAY AND WEDNESDAY.

&&

.SHORT TERM...VISIBLE SATELLITE IMAGERY AND OBS SHOW SOME FOG AROUND
THE LOWLANDS WITH MAINLY LIGHT FLOW AT THE SURFACE. GRADIENTS ARE
TURNING POSITIVE AHEAD OF A FRONT OFFSHORE SO FOG WILL MIX OUT BUT
SOME MID/HIGH CLOUDS WILL BE AROUND. HIGH TEMPERATURES TODAY SHOULD
TOP OUT A FEW DEGREES COOLER THAN YESTERDAY...MAINLY MID 60S.

CURRENT IR SATELLITE SHOWS COOLING CLOUD TOPS NEAR A DEVELOPING
SURFACE LOW FEATURE TRACKING TOWARD SRN B.C. THIS MORNING. THIS IS
WHERE THE RAIN WILL BE FOCUSED TODAY AHEAD OF THE MAIN FRONT.
MODELS ARE IN GOOD AGREEMENT THAT RAIN ASSOCIATED WITH THE COLD
FRONT WILL REACH THE WA COAST BY LATE THIS AFTERNOON....THEN SPREAD
INLAND DURING THE EVENING. THE UPPER LOW IS EXPECTED TO CLOSE OFF
AND DIG SE ACROSS WRN WA TONIGHT USHERING IN COOLER AIR ALOFT. SNOW
LEVELS AROUND 7000 FEET AHEAD OF THE FRONT SHOULD FALL TO 4500 TO
5000 FEET BEHIND THE FRONT AFTER MIDNIGHT. HIGHER PASSES LIKE
STEVENS COULD GET AN INCH OR TWO AND POSSIBLY 2-5 INCHES AT SPOTS
LIKE MOUNT BAKER ABOVE PASS LEVEL THROUGH SATURDAY MORNING. WILL
MAKE SOME MINOR ADJUSTMENTS TO THE MOUNTAIN ZONES FOR
TONIGHT/SATURDAY MORNING.

IT WILL BECOME BREEZY BEHIND THE FRONT LATER TONIGHT AND SATURDAY
MORNING. SURFACE RIDGING ALONG THE COAST WILL BECOME CONDUCIVE FOR A
PUGET SOUND CONVERGENCE ZONE TO FORM...MAINLY N OF SEATTLE. THERE
WILL BE SOME SHOWERS ELSEWHERE WITH RAIN OR SNOW AT TIMES IN THE
MOUNTAINS. IT WILL BE COOLER WITH HIGHS IN THE UPPER 50S.

THE NEXT SYSTEM WILL ARRIVE SATURDAY NIGHT AND SUNDAY. MODELS SHOW
THE BULK OF MOISTURE HANGING UP OVER SRN B.C. AND EXTREME NW
WA...BUT THERE IS A CHANCE THAT SOME LIGHT RAIN COULD EXTEND FURTHER
S AT TIMES. MERCER

.LONG TERM...FROM PREVIOUS DISCUSSION...A FRONT WILL REACH THE AREA
LATE MONDAY OR MONDAY NIGHT FOR A PERIOD OF RAIN. COOLER SHOWERY
WEATHER WILL PREVAIL TUESDAY AND WEDNESDAY WITH A BROAD UPPER TROUGH
OVER THE PACIFIC NORTHWEST. MODELS SUGGEST DRIER WEATHER IS POSSIBLE
THURSDAY AS AN UPPER RIDGE MOVES OVER THE REGION. SCHNEIDER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...PATCHES OF FOG SHOULD LIFT AND MIX AWAY THIS MORNING AS
THE LOW LEVEL FLOW TURNS SOUTHERLY AND PICKS UP AHEAD OF A FRONT
JUST OFFSHORE. THE FRONT WILL MOVE ONTO THE COAST DURING THE
AFTERNOON AND INLAND THIS EVENING. RAIN WILL SPREAD INLAND WITH THE
FRONT AND TURN TO SHOWERS LATE TONIGHT.

KSEA...FOG MADE IT INTO SEA TAC BUT SHOULD LIFT OUT BY 18Z A SLY
FLOW STARTS TO INCREASE AND MIX THE AIR MASS. CLOUDS WILL INCREASE
PRETTY RAPIDLY THIS AFTERNOON WITH RAIN BY EVENING AND PERHAPS A
FAIRLY BREEZY SW WIND TONIGHT WITH THE FRONT.

&&

.MARINE...A COLD FRONT WILL MOVE INTO THE COASTAL WATERS THIS
AFTERNOON AND TO THE INLAND WATERS THIS EVENING. SMALL CRAFT
ADVISORIES ARE UP FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH
PRESSURE WILL BUILD OVER THE REGION ON SATURDAY WITH A BREAK IN THE
WINDS. AN APPROACHING FRONTAL BOUNDARY WILL BRING INCREASING
SOUTHERLIES TO THE COASTAL WATERS SATURDAY NIGHT AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY CENTRAL AND NORTHERN COASTAL
     WATERS...CENTRAL STRAIT...EAST STRAIT...PUGET SOUND/HOOD
     CANAL...AND NORTHERN INLAND WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML












000
FXUS66 KSEW 271611
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 AM PDT FRI MAR 27 2015

.SYNOPSIS...A FRONT WILL BRING RAIN TO THE COAST LATE THIS AFTERNOON
AND TO THE INTERIOR BY THIS EVENING. A WEAK UPPER RIDGE WILL STEER
WEATHER SYSTEMS MOSTLY INTO BRITISH COLUMBIA OVER THE WEEKEND. A
COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY. A COOL SHOWERY
UPPER TROUGH WILL BE OVER THE AREA TUESDAY AND WEDNESDAY.

&&

.SHORT TERM...VISIBLE SATELLITE IMAGERY AND OBS SHOW SOME FOG AROUND
THE LOWLANDS WITH MAINLY LIGHT FLOW AT THE SURFACE. GRADIENTS ARE
TURNING POSITIVE AHEAD OF A FRONT OFFSHORE SO FOG WILL MIX OUT BUT
SOME MID/HIGH CLOUDS WILL BE AROUND. HIGH TEMPERATURES TODAY SHOULD
TOP OUT A FEW DEGREES COOLER THAN YESTERDAY...MAINLY MID 60S.

CURRENT IR SATELLITE SHOWS COOLING CLOUD TOPS NEAR A DEVELOPING
SURFACE LOW FEATURE TRACKING TOWARD SRN B.C. THIS MORNING. THIS IS
WHERE THE RAIN WILL BE FOCUSED TODAY AHEAD OF THE MAIN FRONT.
MODELS ARE IN GOOD AGREEMENT THAT RAIN ASSOCIATED WITH THE COLD
FRONT WILL REACH THE WA COAST BY LATE THIS AFTERNOON....THEN SPREAD
INLAND DURING THE EVENING. THE UPPER LOW IS EXPECTED TO CLOSE OFF
AND DIG SE ACROSS WRN WA TONIGHT USHERING IN COOLER AIR ALOFT. SNOW
LEVELS AROUND 7000 FEET AHEAD OF THE FRONT SHOULD FALL TO 4500 TO
5000 FEET BEHIND THE FRONT AFTER MIDNIGHT. HIGHER PASSES LIKE
STEVENS COULD GET AN INCH OR TWO AND POSSIBLY 2-5 INCHES AT SPOTS
LIKE MOUNT BAKER ABOVE PASS LEVEL THROUGH SATURDAY MORNING. WILL
MAKE SOME MINOR ADJUSTMENTS TO THE MOUNTAIN ZONES FOR
TONIGHT/SATURDAY MORNING.

IT WILL BECOME BREEZY BEHIND THE FRONT LATER TONIGHT AND SATURDAY
MORNING. SURFACE RIDGING ALONG THE COAST WILL BECOME CONDUCIVE FOR A
PUGET SOUND CONVERGENCE ZONE TO FORM...MAINLY N OF SEATTLE. THERE
WILL BE SOME SHOWERS ELSEWHERE WITH RAIN OR SNOW AT TIMES IN THE
MOUNTAINS. IT WILL BE COOLER WITH HIGHS IN THE UPPER 50S.

THE NEXT SYSTEM WILL ARRIVE SATURDAY NIGHT AND SUNDAY. MODELS SHOW
THE BULK OF MOISTURE HANGING UP OVER SRN B.C. AND EXTREME NW
WA...BUT THERE IS A CHANCE THAT SOME LIGHT RAIN COULD EXTEND FURTHER
S AT TIMES. MERCER

.LONG TERM...FROM PREVIOUS DISCUSSION...A FRONT WILL REACH THE AREA
LATE MONDAY OR MONDAY NIGHT FOR A PERIOD OF RAIN. COOLER SHOWERY
WEATHER WILL PREVAIL TUESDAY AND WEDNESDAY WITH A BROAD UPPER TROUGH
OVER THE PACIFIC NORTHWEST. MODELS SUGGEST DRIER WEATHER IS POSSIBLE
THURSDAY AS AN UPPER RIDGE MOVES OVER THE REGION. SCHNEIDER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...PATCHES OF FOG SHOULD LIFT AND MIX AWAY THIS MORNING AS
THE LOW LEVEL FLOW TURNS SOUTHERLY AND PICKS UP AHEAD OF A FRONT
JUST OFFSHORE. THE FRONT WILL MOVE ONTO THE COAST DURING THE
AFTERNOON AND INLAND THIS EVENING. RAIN WILL SPREAD INLAND WITH THE
FRONT AND TURN TO SHOWERS LATE TONIGHT.

KSEA...FOG MADE IT INTO SEA TAC BUT SHOULD LIFT OUT BY 18Z A SLY
FLOW STARTS TO INCREASE AND MIX THE AIR MASS. CLOUDS WILL INCREASE
PRETTY RAPIDLY THIS AFTERNOON WITH RAIN BY EVENING AND PERHAPS A
FAIRLY BREEZY SW WIND TONIGHT WITH THE FRONT.

&&

.MARINE...A COLD FRONT WILL MOVE INTO THE COASTAL WATERS THIS
AFTERNOON AND TO THE INLAND WATERS THIS EVENING. SMALL CRAFT
ADVISORIES ARE UP FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH
PRESSURE WILL BUILD OVER THE REGION ON SATURDAY WITH A BREAK IN THE
WINDS. AN APPROACHING FRONTAL BOUNDARY WILL BRING INCREASING
SOUTHERLIES TO THE COASTAL WATERS SATURDAY NIGHT AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY CENTRAL AND NORTHERN COASTAL
     WATERS...CENTRAL STRAIT...EAST STRAIT...PUGET SOUND/HOOD
     CANAL...AND NORTHERN INLAND WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML











000
FXUS66 KSEW 271611
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 AM PDT FRI MAR 27 2015

.SYNOPSIS...A FRONT WILL BRING RAIN TO THE COAST LATE THIS AFTERNOON
AND TO THE INTERIOR BY THIS EVENING. A WEAK UPPER RIDGE WILL STEER
WEATHER SYSTEMS MOSTLY INTO BRITISH COLUMBIA OVER THE WEEKEND. A
COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY. A COOL SHOWERY
UPPER TROUGH WILL BE OVER THE AREA TUESDAY AND WEDNESDAY.

&&

.SHORT TERM...VISIBLE SATELLITE IMAGERY AND OBS SHOW SOME FOG AROUND
THE LOWLANDS WITH MAINLY LIGHT FLOW AT THE SURFACE. GRADIENTS ARE
TURNING POSITIVE AHEAD OF A FRONT OFFSHORE SO FOG WILL MIX OUT BUT
SOME MID/HIGH CLOUDS WILL BE AROUND. HIGH TEMPERATURES TODAY SHOULD
TOP OUT A FEW DEGREES COOLER THAN YESTERDAY...MAINLY MID 60S.

CURRENT IR SATELLITE SHOWS COOLING CLOUD TOPS NEAR A DEVELOPING
SURFACE LOW FEATURE TRACKING TOWARD SRN B.C. THIS MORNING. THIS IS
WHERE THE RAIN WILL BE FOCUSED TODAY AHEAD OF THE MAIN FRONT.
MODELS ARE IN GOOD AGREEMENT THAT RAIN ASSOCIATED WITH THE COLD
FRONT WILL REACH THE WA COAST BY LATE THIS AFTERNOON....THEN SPREAD
INLAND DURING THE EVENING. THE UPPER LOW IS EXPECTED TO CLOSE OFF
AND DIG SE ACROSS WRN WA TONIGHT USHERING IN COOLER AIR ALOFT. SNOW
LEVELS AROUND 7000 FEET AHEAD OF THE FRONT SHOULD FALL TO 4500 TO
5000 FEET BEHIND THE FRONT AFTER MIDNIGHT. HIGHER PASSES LIKE
STEVENS COULD GET AN INCH OR TWO AND POSSIBLY 2-5 INCHES AT SPOTS
LIKE MOUNT BAKER ABOVE PASS LEVEL THROUGH SATURDAY MORNING. WILL
MAKE SOME MINOR ADJUSTMENTS TO THE MOUNTAIN ZONES FOR
TONIGHT/SATURDAY MORNING.

IT WILL BECOME BREEZY BEHIND THE FRONT LATER TONIGHT AND SATURDAY
MORNING. SURFACE RIDGING ALONG THE COAST WILL BECOME CONDUCIVE FOR A
PUGET SOUND CONVERGENCE ZONE TO FORM...MAINLY N OF SEATTLE. THERE
WILL BE SOME SHOWERS ELSEWHERE WITH RAIN OR SNOW AT TIMES IN THE
MOUNTAINS. IT WILL BE COOLER WITH HIGHS IN THE UPPER 50S.

THE NEXT SYSTEM WILL ARRIVE SATURDAY NIGHT AND SUNDAY. MODELS SHOW
THE BULK OF MOISTURE HANGING UP OVER SRN B.C. AND EXTREME NW
WA...BUT THERE IS A CHANCE THAT SOME LIGHT RAIN COULD EXTEND FURTHER
S AT TIMES. MERCER

.LONG TERM...FROM PREVIOUS DISCUSSION...A FRONT WILL REACH THE AREA
LATE MONDAY OR MONDAY NIGHT FOR A PERIOD OF RAIN. COOLER SHOWERY
WEATHER WILL PREVAIL TUESDAY AND WEDNESDAY WITH A BROAD UPPER TROUGH
OVER THE PACIFIC NORTHWEST. MODELS SUGGEST DRIER WEATHER IS POSSIBLE
THURSDAY AS AN UPPER RIDGE MOVES OVER THE REGION. SCHNEIDER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...PATCHES OF FOG SHOULD LIFT AND MIX AWAY THIS MORNING AS
THE LOW LEVEL FLOW TURNS SOUTHERLY AND PICKS UP AHEAD OF A FRONT
JUST OFFSHORE. THE FRONT WILL MOVE ONTO THE COAST DURING THE
AFTERNOON AND INLAND THIS EVENING. RAIN WILL SPREAD INLAND WITH THE
FRONT AND TURN TO SHOWERS LATE TONIGHT.

KSEA...FOG MADE IT INTO SEA TAC BUT SHOULD LIFT OUT BY 18Z A SLY
FLOW STARTS TO INCREASE AND MIX THE AIR MASS. CLOUDS WILL INCREASE
PRETTY RAPIDLY THIS AFTERNOON WITH RAIN BY EVENING AND PERHAPS A
FAIRLY BREEZY SW WIND TONIGHT WITH THE FRONT.

&&

.MARINE...A COLD FRONT WILL MOVE INTO THE COASTAL WATERS THIS
AFTERNOON AND TO THE INLAND WATERS THIS EVENING. SMALL CRAFT
ADVISORIES ARE UP FOR THE WINDS EXPECTED WITH THIS FRONT. HIGH
PRESSURE WILL BUILD OVER THE REGION ON SATURDAY WITH A BREAK IN THE
WINDS. AN APPROACHING FRONTAL BOUNDARY WILL BRING INCREASING
SOUTHERLIES TO THE COASTAL WATERS SATURDAY NIGHT AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY CENTRAL AND NORTHERN COASTAL
     WATERS...CENTRAL STRAIT...EAST STRAIT...PUGET SOUND/HOOD
     CANAL...AND NORTHERN INLAND WATERS.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML











000
FXUS66 KPQR 271606
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS TODAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...SURFACE OBSERVATIONS AND FOG PRODUCT INDICATE FOG IS MUCH
LESS WIDESPREAD THAN YESTERDAY MORNING. NONETHELESS...THERE ARE SOME
PATCHES OF DENSE FOG ALONG THE INTERSTATE 5 CORRIDOR IN SOUTHWEST
WASHINGTON AND NORTHWEST OREGON. MCMINNVILLE...CORVALLIS AND PORTIONS
OF CLARK COUNTY HAVE SEEN THE MOST PERSISTENT VISIBILITIES OF A
QUARTER MILE OR LESS THIS MORNING. GIVEN THE PATCHY NATURE OF THE FOG
AND BASED ON THE FACT THAT IS MUCH SHALLOWER THAN YESTERDAY AND
THEREFORE SHOULD DISSIPATE MUCH FASTER...WILL HANDLE THE FOG WITH A
NOWCAST INSTEAD OF A DENSE FOG ADVISORY THIS MORNING.

MEANWHILE...SURFACE ANALYSIS AND SATELLITE IMAGERY INDICATE A
SOUTHWEST MARINE PUSH IS CURRENTLY UNDERWAY WITH LOW CLOUDS FIRMLY
ENTRENCHED ALONG THE ENTIRE OREGON COAST. IN FACT...MARINE CLOUDS ARE
KNOCKING ON THE DOORSTEP OF EUGENE. THE NAM HAS FINALLY PICKED UP ON
THIS IDEA AND SUGGESTS CLOUDS WILL LIKELY ENTER THE SOUTHERN
WILLAMETTE VALLEY BEFORE BURNING BACK INTO THE COAST RANGE LATER THIS
MORNING. THIS IDEA SEEMS PLAUSIBLE SO TRENDED THE SKY FORECAST TO
DEPICT THIS SCENARIO. HOWEVER...WOULD NOT BE SURPRISED TO SEE THESE
CLOUDS SPREAD UP THE ENTIRE WILLAMETTE VALLEY EITHER SO THERE IS A
DECENT AMOUNT OF UNCERTAINTY IN THIS PORTION OF THE FORECAST.
GIVEN THE LOW CLOUDS AND COOLER AIR INFILTRATING OUR SOUTHERN
ZONES...TEMPERATURES WERE NUDGED DOWNWARD IN THIS REGION...BUT IF
CLOUDS WERE TO SPREAD FARTHER NORTH...OUR TEMPERATURE FORECAST IS
LIKELY TOO HIGH FOR THE CENTRAL AND NORTHERN WILLAMETTE VALLEY...TOO.

A FRONT CURRENTLY NEAR 130W WILL WORK ITS WAY INTO NORTHWEST OREGON
AND SOUTHWEST WASHINGTON THIS EVENING. IT APPEARS THE FIRST RAIN
SHOWERS SHOULD ARRIVE ON THE COAST BETWEEN 4 PM AND 6 PM AND BETWEEN
6 PM AND 9 PM ACROSS THE WILLAMETTE VALLEY. QPF STILL LOOKS RATHER
LIGHT WITH THIS SYSTEM.

THE AREA LOOKS TO DRY OUT RELATIVELY QUICKLY SATURDAY
MORNING...EXCEPT ACROSS THE FAR NORTH WHERE A FEW SHOWERS MAY LINGER
THROUGH THE DAY.

RELATIVELY FLAT RIDGING LOOKS TO BRING DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR FAR NORTHWEST ZONES WILL CERTAINLY
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH...AND PERHAPS A PERIOD OR TWO OF LIGHT RAIN DURING THIS PERIOD.
/NEUMAN



.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...POCKETS OF IFR FOG AND LOW STRATUS HAVE FORMED OVER
MUCH OF THE REGION THIS MORNING...ALTHOUGH COVERAGE IS NOT AS
EXTENSIVE AS WE SAW YESTERDAY MORNING. EXPECT THE FOG AND STRATUS
TO BURN OFF BETWEEN 16Z AND 18Z. BASED ON SATELLITE OBSERVATIONS
THIS MORNING...IT APPEARS THAT A SOUTHERLY STRATUS SURGE IS
UNDERWAY ALONG THE CENTRAL OR COAST AND THROUGH THE COAST RANGE
GAPS INTO THE WILLAMETTE VALLEY. ADDED AN IFR STRATUS DECK TO THE
KEUG TAF THIS MORNING. THE 12Z NAM AND RAP MODEL GUIDANCE SUGGEST
THE STRATUS MAY SURGE UP THE WILLAMETTE VALLEY THROUGH THE
DAY...LIKELY REACHING KSLE AND WITH AN OUTSIDE CHANCE OF IT GETTING
INTO THE NORTHERN WILLAMETTE VALLEY. CONFIDENCE IN THE FCST MODELS
IS NOT ALL THAT HIGH...SO WILL BE MONITORING SATELLITE TRENDS
CLOSELY.

RAIN AND MVFR CIGS WILL ACCOMPANY THE ARRIVAL OF A COLD FRONT
LATER TODAY AND TONIGHT. EXPECT THE FRONT TO BEGIN TO IMPACT THE
COAST LATE THIS AFTERNOON...AND MOVE INTO THE INTERIOR THIS
EVENING. SHOWERS AND MVFR CIGS MAY LINGER THROUGH MUCH OF SAT
MORNING.

KPDX AND APPROACHES...MAINLY VFR CONDITIONS EXPECTED THIS
MORNING...ALTHOUGH A BRIEF PERIOD OF IFR FOG IS POSSIBLE THROUGH
ABOUT 17Z. THERE IS A SLIGHT CHANCE THAT A SOUTHERLY STRATUS
SURGE WILL BRING IFR CIGS TO THE TERMINAL LATE THIS MORNING OR
THIS AFTERNOON. IF NOT...VFR SHOULD PERSIST INTO THE EVENING. A
COLD FRONT WILL BRING RAIN AND LIKELY MVFR CIGS LATER THIS EVENING
AND OVERNIGHT. PYLE

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS AROUND 10 KT AND SEAS AROUND 8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH TOWARD THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP AHEAD OF THE FRONT. EXTENDED THE SMALL CRAFT
ADVISORY FOR WINDS OVER ALL OF THE WATERS THROUGH LATE TONIGHT.
SEAS MAY CLIMB TO AROUND 10 FT DURING THE PERIOD OF THE STRONGEST
WINDS.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA TO
     FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 1 PM
     PDT THIS AFTERNOON.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
     THIS EVENING TO 2 AM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 271606
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS TODAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...SURFACE OBSERVATIONS AND FOG PRODUCT INDICATE FOG IS MUCH
LESS WIDESPREAD THAN YESTERDAY MORNING. NONETHELESS...THERE ARE SOME
PATCHES OF DENSE FOG ALONG THE INTERSTATE 5 CORRIDOR IN SOUTHWEST
WASHINGTON AND NORTHWEST OREGON. MCMINNVILLE...CORVALLIS AND PORTIONS
OF CLARK COUNTY HAVE SEEN THE MOST PERSISTENT VISIBILITIES OF A
QUARTER MILE OR LESS THIS MORNING. GIVEN THE PATCHY NATURE OF THE FOG
AND BASED ON THE FACT THAT IS MUCH SHALLOWER THAN YESTERDAY AND
THEREFORE SHOULD DISSIPATE MUCH FASTER...WILL HANDLE THE FOG WITH A
NOWCAST INSTEAD OF A DENSE FOG ADVISORY THIS MORNING.

MEANWHILE...SURFACE ANALYSIS AND SATELLITE IMAGERY INDICATE A
SOUTHWEST MARINE PUSH IS CURRENTLY UNDERWAY WITH LOW CLOUDS FIRMLY
ENTRENCHED ALONG THE ENTIRE OREGON COAST. IN FACT...MARINE CLOUDS ARE
KNOCKING ON THE DOORSTEP OF EUGENE. THE NAM HAS FINALLY PICKED UP ON
THIS IDEA AND SUGGESTS CLOUDS WILL LIKELY ENTER THE SOUTHERN
WILLAMETTE VALLEY BEFORE BURNING BACK INTO THE COAST RANGE LATER THIS
MORNING. THIS IDEA SEEMS PLAUSIBLE SO TRENDED THE SKY FORECAST TO
DEPICT THIS SCENARIO. HOWEVER...WOULD NOT BE SURPRISED TO SEE THESE
CLOUDS SPREAD UP THE ENTIRE WILLAMETTE VALLEY EITHER SO THERE IS A
DECENT AMOUNT OF UNCERTAINTY IN THIS PORTION OF THE FORECAST.
GIVEN THE LOW CLOUDS AND COOLER AIR INFILTRATING OUR SOUTHERN
ZONES...TEMPERATURES WERE NUDGED DOWNWARD IN THIS REGION...BUT IF
CLOUDS WERE TO SPREAD FARTHER NORTH...OUR TEMPERATURE FORECAST IS
LIKELY TOO HIGH FOR THE CENTRAL AND NORTHERN WILLAMETTE VALLEY...TOO.

A FRONT CURRENTLY NEAR 130W WILL WORK ITS WAY INTO NORTHWEST OREGON
AND SOUTHWEST WASHINGTON THIS EVENING. IT APPEARS THE FIRST RAIN
SHOWERS SHOULD ARRIVE ON THE COAST BETWEEN 4 PM AND 6 PM AND BETWEEN
6 PM AND 9 PM ACROSS THE WILLAMETTE VALLEY. QPF STILL LOOKS RATHER
LIGHT WITH THIS SYSTEM.

THE AREA LOOKS TO DRY OUT RELATIVELY QUICKLY SATURDAY
MORNING...EXCEPT ACROSS THE FAR NORTH WHERE A FEW SHOWERS MAY LINGER
THROUGH THE DAY.

RELATIVELY FLAT RIDGING LOOKS TO BRING DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR FAR NORTHWEST ZONES WILL CERTAINLY
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH...AND PERHAPS A PERIOD OR TWO OF LIGHT RAIN DURING THIS PERIOD.
/NEUMAN



.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...POCKETS OF IFR FOG AND LOW STRATUS HAVE FORMED OVER
MUCH OF THE REGION THIS MORNING...ALTHOUGH COVERAGE IS NOT AS
EXTENSIVE AS WE SAW YESTERDAY MORNING. EXPECT THE FOG AND STRATUS
TO BURN OFF BETWEEN 16Z AND 18Z. BASED ON SATELLITE OBSERVATIONS
THIS MORNING...IT APPEARS THAT A SOUTHERLY STRATUS SURGE IS
UNDERWAY ALONG THE CENTRAL OR COAST AND THROUGH THE COAST RANGE
GAPS INTO THE WILLAMETTE VALLEY. ADDED AN IFR STRATUS DECK TO THE
KEUG TAF THIS MORNING. THE 12Z NAM AND RAP MODEL GUIDANCE SUGGEST
THE STRATUS MAY SURGE UP THE WILLAMETTE VALLEY THROUGH THE
DAY...LIKELY REACHING KSLE AND WITH AN OUTSIDE CHANCE OF IT GETTING
INTO THE NORTHERN WILLAMETTE VALLEY. CONFIDENCE IN THE FCST MODELS
IS NOT ALL THAT HIGH...SO WILL BE MONITORING SATELLITE TRENDS
CLOSELY.

RAIN AND MVFR CIGS WILL ACCOMPANY THE ARRIVAL OF A COLD FRONT
LATER TODAY AND TONIGHT. EXPECT THE FRONT TO BEGIN TO IMPACT THE
COAST LATE THIS AFTERNOON...AND MOVE INTO THE INTERIOR THIS
EVENING. SHOWERS AND MVFR CIGS MAY LINGER THROUGH MUCH OF SAT
MORNING.

KPDX AND APPROACHES...MAINLY VFR CONDITIONS EXPECTED THIS
MORNING...ALTHOUGH A BRIEF PERIOD OF IFR FOG IS POSSIBLE THROUGH
ABOUT 17Z. THERE IS A SLIGHT CHANCE THAT A SOUTHERLY STRATUS
SURGE WILL BRING IFR CIGS TO THE TERMINAL LATE THIS MORNING OR
THIS AFTERNOON. IF NOT...VFR SHOULD PERSIST INTO THE EVENING. A
COLD FRONT WILL BRING RAIN AND LIKELY MVFR CIGS LATER THIS EVENING
AND OVERNIGHT. PYLE

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS AROUND 10 KT AND SEAS AROUND 8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH TOWARD THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP AHEAD OF THE FRONT. EXTENDED THE SMALL CRAFT
ADVISORY FOR WINDS OVER ALL OF THE WATERS THROUGH LATE TONIGHT.
SEAS MAY CLIMB TO AROUND 10 FT DURING THE PERIOD OF THE STRONGEST
WINDS.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA TO
     FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 1 PM
     PDT THIS AFTERNOON.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
     THIS EVENING TO 2 AM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 271606
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS TODAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...SURFACE OBSERVATIONS AND FOG PRODUCT INDICATE FOG IS MUCH
LESS WIDESPREAD THAN YESTERDAY MORNING. NONETHELESS...THERE ARE SOME
PATCHES OF DENSE FOG ALONG THE INTERSTATE 5 CORRIDOR IN SOUTHWEST
WASHINGTON AND NORTHWEST OREGON. MCMINNVILLE...CORVALLIS AND PORTIONS
OF CLARK COUNTY HAVE SEEN THE MOST PERSISTENT VISIBILITIES OF A
QUARTER MILE OR LESS THIS MORNING. GIVEN THE PATCHY NATURE OF THE FOG
AND BASED ON THE FACT THAT IS MUCH SHALLOWER THAN YESTERDAY AND
THEREFORE SHOULD DISSIPATE MUCH FASTER...WILL HANDLE THE FOG WITH A
NOWCAST INSTEAD OF A DENSE FOG ADVISORY THIS MORNING.

MEANWHILE...SURFACE ANALYSIS AND SATELLITE IMAGERY INDICATE A
SOUTHWEST MARINE PUSH IS CURRENTLY UNDERWAY WITH LOW CLOUDS FIRMLY
ENTRENCHED ALONG THE ENTIRE OREGON COAST. IN FACT...MARINE CLOUDS ARE
KNOCKING ON THE DOORSTEP OF EUGENE. THE NAM HAS FINALLY PICKED UP ON
THIS IDEA AND SUGGESTS CLOUDS WILL LIKELY ENTER THE SOUTHERN
WILLAMETTE VALLEY BEFORE BURNING BACK INTO THE COAST RANGE LATER THIS
MORNING. THIS IDEA SEEMS PLAUSIBLE SO TRENDED THE SKY FORECAST TO
DEPICT THIS SCENARIO. HOWEVER...WOULD NOT BE SURPRISED TO SEE THESE
CLOUDS SPREAD UP THE ENTIRE WILLAMETTE VALLEY EITHER SO THERE IS A
DECENT AMOUNT OF UNCERTAINTY IN THIS PORTION OF THE FORECAST.
GIVEN THE LOW CLOUDS AND COOLER AIR INFILTRATING OUR SOUTHERN
ZONES...TEMPERATURES WERE NUDGED DOWNWARD IN THIS REGION...BUT IF
CLOUDS WERE TO SPREAD FARTHER NORTH...OUR TEMPERATURE FORECAST IS
LIKELY TOO HIGH FOR THE CENTRAL AND NORTHERN WILLAMETTE VALLEY...TOO.

A FRONT CURRENTLY NEAR 130W WILL WORK ITS WAY INTO NORTHWEST OREGON
AND SOUTHWEST WASHINGTON THIS EVENING. IT APPEARS THE FIRST RAIN
SHOWERS SHOULD ARRIVE ON THE COAST BETWEEN 4 PM AND 6 PM AND BETWEEN
6 PM AND 9 PM ACROSS THE WILLAMETTE VALLEY. QPF STILL LOOKS RATHER
LIGHT WITH THIS SYSTEM.

THE AREA LOOKS TO DRY OUT RELATIVELY QUICKLY SATURDAY
MORNING...EXCEPT ACROSS THE FAR NORTH WHERE A FEW SHOWERS MAY LINGER
THROUGH THE DAY.

RELATIVELY FLAT RIDGING LOOKS TO BRING DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR FAR NORTHWEST ZONES WILL CERTAINLY
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH...AND PERHAPS A PERIOD OR TWO OF LIGHT RAIN DURING THIS PERIOD.
/NEUMAN



.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...POCKETS OF IFR FOG AND LOW STRATUS HAVE FORMED OVER
MUCH OF THE REGION THIS MORNING...ALTHOUGH COVERAGE IS NOT AS
EXTENSIVE AS WE SAW YESTERDAY MORNING. EXPECT THE FOG AND STRATUS
TO BURN OFF BETWEEN 16Z AND 18Z. BASED ON SATELLITE OBSERVATIONS
THIS MORNING...IT APPEARS THAT A SOUTHERLY STRATUS SURGE IS
UNDERWAY ALONG THE CENTRAL OR COAST AND THROUGH THE COAST RANGE
GAPS INTO THE WILLAMETTE VALLEY. ADDED AN IFR STRATUS DECK TO THE
KEUG TAF THIS MORNING. THE 12Z NAM AND RAP MODEL GUIDANCE SUGGEST
THE STRATUS MAY SURGE UP THE WILLAMETTE VALLEY THROUGH THE
DAY...LIKELY REACHING KSLE AND WITH AN OUTSIDE CHANCE OF IT GETTING
INTO THE NORTHERN WILLAMETTE VALLEY. CONFIDENCE IN THE FCST MODELS
IS NOT ALL THAT HIGH...SO WILL BE MONITORING SATELLITE TRENDS
CLOSELY.

RAIN AND MVFR CIGS WILL ACCOMPANY THE ARRIVAL OF A COLD FRONT
LATER TODAY AND TONIGHT. EXPECT THE FRONT TO BEGIN TO IMPACT THE
COAST LATE THIS AFTERNOON...AND MOVE INTO THE INTERIOR THIS
EVENING. SHOWERS AND MVFR CIGS MAY LINGER THROUGH MUCH OF SAT
MORNING.

KPDX AND APPROACHES...MAINLY VFR CONDITIONS EXPECTED THIS
MORNING...ALTHOUGH A BRIEF PERIOD OF IFR FOG IS POSSIBLE THROUGH
ABOUT 17Z. THERE IS A SLIGHT CHANCE THAT A SOUTHERLY STRATUS
SURGE WILL BRING IFR CIGS TO THE TERMINAL LATE THIS MORNING OR
THIS AFTERNOON. IF NOT...VFR SHOULD PERSIST INTO THE EVENING. A
COLD FRONT WILL BRING RAIN AND LIKELY MVFR CIGS LATER THIS EVENING
AND OVERNIGHT. PYLE

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS AROUND 10 KT AND SEAS AROUND 8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH TOWARD THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP AHEAD OF THE FRONT. EXTENDED THE SMALL CRAFT
ADVISORY FOR WINDS OVER ALL OF THE WATERS THROUGH LATE TONIGHT.
SEAS MAY CLIMB TO AROUND 10 FT DURING THE PERIOD OF THE STRONGEST
WINDS.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA TO
     FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 1 PM
     PDT THIS AFTERNOON.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
     THIS EVENING TO 2 AM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 271606
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS TODAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...SURFACE OBSERVATIONS AND FOG PRODUCT INDICATE FOG IS MUCH
LESS WIDESPREAD THAN YESTERDAY MORNING. NONETHELESS...THERE ARE SOME
PATCHES OF DENSE FOG ALONG THE INTERSTATE 5 CORRIDOR IN SOUTHWEST
WASHINGTON AND NORTHWEST OREGON. MCMINNVILLE...CORVALLIS AND PORTIONS
OF CLARK COUNTY HAVE SEEN THE MOST PERSISTENT VISIBILITIES OF A
QUARTER MILE OR LESS THIS MORNING. GIVEN THE PATCHY NATURE OF THE FOG
AND BASED ON THE FACT THAT IS MUCH SHALLOWER THAN YESTERDAY AND
THEREFORE SHOULD DISSIPATE MUCH FASTER...WILL HANDLE THE FOG WITH A
NOWCAST INSTEAD OF A DENSE FOG ADVISORY THIS MORNING.

MEANWHILE...SURFACE ANALYSIS AND SATELLITE IMAGERY INDICATE A
SOUTHWEST MARINE PUSH IS CURRENTLY UNDERWAY WITH LOW CLOUDS FIRMLY
ENTRENCHED ALONG THE ENTIRE OREGON COAST. IN FACT...MARINE CLOUDS ARE
KNOCKING ON THE DOORSTEP OF EUGENE. THE NAM HAS FINALLY PICKED UP ON
THIS IDEA AND SUGGESTS CLOUDS WILL LIKELY ENTER THE SOUTHERN
WILLAMETTE VALLEY BEFORE BURNING BACK INTO THE COAST RANGE LATER THIS
MORNING. THIS IDEA SEEMS PLAUSIBLE SO TRENDED THE SKY FORECAST TO
DEPICT THIS SCENARIO. HOWEVER...WOULD NOT BE SURPRISED TO SEE THESE
CLOUDS SPREAD UP THE ENTIRE WILLAMETTE VALLEY EITHER SO THERE IS A
DECENT AMOUNT OF UNCERTAINTY IN THIS PORTION OF THE FORECAST.
GIVEN THE LOW CLOUDS AND COOLER AIR INFILTRATING OUR SOUTHERN
ZONES...TEMPERATURES WERE NUDGED DOWNWARD IN THIS REGION...BUT IF
CLOUDS WERE TO SPREAD FARTHER NORTH...OUR TEMPERATURE FORECAST IS
LIKELY TOO HIGH FOR THE CENTRAL AND NORTHERN WILLAMETTE VALLEY...TOO.

A FRONT CURRENTLY NEAR 130W WILL WORK ITS WAY INTO NORTHWEST OREGON
AND SOUTHWEST WASHINGTON THIS EVENING. IT APPEARS THE FIRST RAIN
SHOWERS SHOULD ARRIVE ON THE COAST BETWEEN 4 PM AND 6 PM AND BETWEEN
6 PM AND 9 PM ACROSS THE WILLAMETTE VALLEY. QPF STILL LOOKS RATHER
LIGHT WITH THIS SYSTEM.

THE AREA LOOKS TO DRY OUT RELATIVELY QUICKLY SATURDAY
MORNING...EXCEPT ACROSS THE FAR NORTH WHERE A FEW SHOWERS MAY LINGER
THROUGH THE DAY.

RELATIVELY FLAT RIDGING LOOKS TO BRING DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR FAR NORTHWEST ZONES WILL CERTAINLY
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH...AND PERHAPS A PERIOD OR TWO OF LIGHT RAIN DURING THIS PERIOD.
/NEUMAN



.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...POCKETS OF IFR FOG AND LOW STRATUS HAVE FORMED OVER
MUCH OF THE REGION THIS MORNING...ALTHOUGH COVERAGE IS NOT AS
EXTENSIVE AS WE SAW YESTERDAY MORNING. EXPECT THE FOG AND STRATUS
TO BURN OFF BETWEEN 16Z AND 18Z. BASED ON SATELLITE OBSERVATIONS
THIS MORNING...IT APPEARS THAT A SOUTHERLY STRATUS SURGE IS
UNDERWAY ALONG THE CENTRAL OR COAST AND THROUGH THE COAST RANGE
GAPS INTO THE WILLAMETTE VALLEY. ADDED AN IFR STRATUS DECK TO THE
KEUG TAF THIS MORNING. THE 12Z NAM AND RAP MODEL GUIDANCE SUGGEST
THE STRATUS MAY SURGE UP THE WILLAMETTE VALLEY THROUGH THE
DAY...LIKELY REACHING KSLE AND WITH AN OUTSIDE CHANCE OF IT GETTING
INTO THE NORTHERN WILLAMETTE VALLEY. CONFIDENCE IN THE FCST MODELS
IS NOT ALL THAT HIGH...SO WILL BE MONITORING SATELLITE TRENDS
CLOSELY.

RAIN AND MVFR CIGS WILL ACCOMPANY THE ARRIVAL OF A COLD FRONT
LATER TODAY AND TONIGHT. EXPECT THE FRONT TO BEGIN TO IMPACT THE
COAST LATE THIS AFTERNOON...AND MOVE INTO THE INTERIOR THIS
EVENING. SHOWERS AND MVFR CIGS MAY LINGER THROUGH MUCH OF SAT
MORNING.

KPDX AND APPROACHES...MAINLY VFR CONDITIONS EXPECTED THIS
MORNING...ALTHOUGH A BRIEF PERIOD OF IFR FOG IS POSSIBLE THROUGH
ABOUT 17Z. THERE IS A SLIGHT CHANCE THAT A SOUTHERLY STRATUS
SURGE WILL BRING IFR CIGS TO THE TERMINAL LATE THIS MORNING OR
THIS AFTERNOON. IF NOT...VFR SHOULD PERSIST INTO THE EVENING. A
COLD FRONT WILL BRING RAIN AND LIKELY MVFR CIGS LATER THIS EVENING
AND OVERNIGHT. PYLE

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS AROUND 10 KT AND SEAS AROUND 8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH TOWARD THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP AHEAD OF THE FRONT. EXTENDED THE SMALL CRAFT
ADVISORY FOR WINDS OVER ALL OF THE WATERS THROUGH LATE TONIGHT.
SEAS MAY CLIMB TO AROUND 10 FT DURING THE PERIOD OF THE STRONGEST
WINDS.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA TO
     FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 1 PM
     PDT THIS AFTERNOON.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
     THIS EVENING TO 2 AM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 271606
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS TODAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...SURFACE OBSERVATIONS AND FOG PRODUCT INDICATE FOG IS MUCH
LESS WIDESPREAD THAN YESTERDAY MORNING. NONETHELESS...THERE ARE SOME
PATCHES OF DENSE FOG ALONG THE INTERSTATE 5 CORRIDOR IN SOUTHWEST
WASHINGTON AND NORTHWEST OREGON. MCMINNVILLE...CORVALLIS AND PORTIONS
OF CLARK COUNTY HAVE SEEN THE MOST PERSISTENT VISIBILITIES OF A
QUARTER MILE OR LESS THIS MORNING. GIVEN THE PATCHY NATURE OF THE FOG
AND BASED ON THE FACT THAT IS MUCH SHALLOWER THAN YESTERDAY AND
THEREFORE SHOULD DISSIPATE MUCH FASTER...WILL HANDLE THE FOG WITH A
NOWCAST INSTEAD OF A DENSE FOG ADVISORY THIS MORNING.

MEANWHILE...SURFACE ANALYSIS AND SATELLITE IMAGERY INDICATE A
SOUTHWEST MARINE PUSH IS CURRENTLY UNDERWAY WITH LOW CLOUDS FIRMLY
ENTRENCHED ALONG THE ENTIRE OREGON COAST. IN FACT...MARINE CLOUDS ARE
KNOCKING ON THE DOORSTEP OF EUGENE. THE NAM HAS FINALLY PICKED UP ON
THIS IDEA AND SUGGESTS CLOUDS WILL LIKELY ENTER THE SOUTHERN
WILLAMETTE VALLEY BEFORE BURNING BACK INTO THE COAST RANGE LATER THIS
MORNING. THIS IDEA SEEMS PLAUSIBLE SO TRENDED THE SKY FORECAST TO
DEPICT THIS SCENARIO. HOWEVER...WOULD NOT BE SURPRISED TO SEE THESE
CLOUDS SPREAD UP THE ENTIRE WILLAMETTE VALLEY EITHER SO THERE IS A
DECENT AMOUNT OF UNCERTAINTY IN THIS PORTION OF THE FORECAST.
GIVEN THE LOW CLOUDS AND COOLER AIR INFILTRATING OUR SOUTHERN
ZONES...TEMPERATURES WERE NUDGED DOWNWARD IN THIS REGION...BUT IF
CLOUDS WERE TO SPREAD FARTHER NORTH...OUR TEMPERATURE FORECAST IS
LIKELY TOO HIGH FOR THE CENTRAL AND NORTHERN WILLAMETTE VALLEY...TOO.

A FRONT CURRENTLY NEAR 130W WILL WORK ITS WAY INTO NORTHWEST OREGON
AND SOUTHWEST WASHINGTON THIS EVENING. IT APPEARS THE FIRST RAIN
SHOWERS SHOULD ARRIVE ON THE COAST BETWEEN 4 PM AND 6 PM AND BETWEEN
6 PM AND 9 PM ACROSS THE WILLAMETTE VALLEY. QPF STILL LOOKS RATHER
LIGHT WITH THIS SYSTEM.

THE AREA LOOKS TO DRY OUT RELATIVELY QUICKLY SATURDAY
MORNING...EXCEPT ACROSS THE FAR NORTH WHERE A FEW SHOWERS MAY LINGER
THROUGH THE DAY.

RELATIVELY FLAT RIDGING LOOKS TO BRING DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR FAR NORTHWEST ZONES WILL CERTAINLY
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH...AND PERHAPS A PERIOD OR TWO OF LIGHT RAIN DURING THIS PERIOD.
/NEUMAN



.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...POCKETS OF IFR FOG AND LOW STRATUS HAVE FORMED OVER
MUCH OF THE REGION THIS MORNING...ALTHOUGH COVERAGE IS NOT AS
EXTENSIVE AS WE SAW YESTERDAY MORNING. EXPECT THE FOG AND STRATUS
TO BURN OFF BETWEEN 16Z AND 18Z. BASED ON SATELLITE OBSERVATIONS
THIS MORNING...IT APPEARS THAT A SOUTHERLY STRATUS SURGE IS
UNDERWAY ALONG THE CENTRAL OR COAST AND THROUGH THE COAST RANGE
GAPS INTO THE WILLAMETTE VALLEY. ADDED AN IFR STRATUS DECK TO THE
KEUG TAF THIS MORNING. THE 12Z NAM AND RAP MODEL GUIDANCE SUGGEST
THE STRATUS MAY SURGE UP THE WILLAMETTE VALLEY THROUGH THE
DAY...LIKELY REACHING KSLE AND WITH AN OUTSIDE CHANCE OF IT GETTING
INTO THE NORTHERN WILLAMETTE VALLEY. CONFIDENCE IN THE FCST MODELS
IS NOT ALL THAT HIGH...SO WILL BE MONITORING SATELLITE TRENDS
CLOSELY.

RAIN AND MVFR CIGS WILL ACCOMPANY THE ARRIVAL OF A COLD FRONT
LATER TODAY AND TONIGHT. EXPECT THE FRONT TO BEGIN TO IMPACT THE
COAST LATE THIS AFTERNOON...AND MOVE INTO THE INTERIOR THIS
EVENING. SHOWERS AND MVFR CIGS MAY LINGER THROUGH MUCH OF SAT
MORNING.

KPDX AND APPROACHES...MAINLY VFR CONDITIONS EXPECTED THIS
MORNING...ALTHOUGH A BRIEF PERIOD OF IFR FOG IS POSSIBLE THROUGH
ABOUT 17Z. THERE IS A SLIGHT CHANCE THAT A SOUTHERLY STRATUS
SURGE WILL BRING IFR CIGS TO THE TERMINAL LATE THIS MORNING OR
THIS AFTERNOON. IF NOT...VFR SHOULD PERSIST INTO THE EVENING. A
COLD FRONT WILL BRING RAIN AND LIKELY MVFR CIGS LATER THIS EVENING
AND OVERNIGHT. PYLE

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS AROUND 10 KT AND SEAS AROUND 8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH TOWARD THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP AHEAD OF THE FRONT. EXTENDED THE SMALL CRAFT
ADVISORY FOR WINDS OVER ALL OF THE WATERS THROUGH LATE TONIGHT.
SEAS MAY CLIMB TO AROUND 10 FT DURING THE PERIOD OF THE STRONGEST
WINDS.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA TO
     FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 1 PM
     PDT THIS AFTERNOON.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
     THIS EVENING TO 2 AM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 271606
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS TODAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA THIS EVENING
AND TONIGHT. SHOWERS SHOULD DIMINISH EARLY SATURDAY. DRY AND MILD
WEATHER LOOKS TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER
FRONT BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL
LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...SURFACE OBSERVATIONS AND FOG PRODUCT INDICATE FOG IS MUCH
LESS WIDESPREAD THAN YESTERDAY MORNING. NONETHELESS...THERE ARE SOME
PATCHES OF DENSE FOG ALONG THE INTERSTATE 5 CORRIDOR IN SOUTHWEST
WASHINGTON AND NORTHWEST OREGON. MCMINNVILLE...CORVALLIS AND PORTIONS
OF CLARK COUNTY HAVE SEEN THE MOST PERSISTENT VISIBILITIES OF A
QUARTER MILE OR LESS THIS MORNING. GIVEN THE PATCHY NATURE OF THE FOG
AND BASED ON THE FACT THAT IS MUCH SHALLOWER THAN YESTERDAY AND
THEREFORE SHOULD DISSIPATE MUCH FASTER...WILL HANDLE THE FOG WITH A
NOWCAST INSTEAD OF A DENSE FOG ADVISORY THIS MORNING.

MEANWHILE...SURFACE ANALYSIS AND SATELLITE IMAGERY INDICATE A
SOUTHWEST MARINE PUSH IS CURRENTLY UNDERWAY WITH LOW CLOUDS FIRMLY
ENTRENCHED ALONG THE ENTIRE OREGON COAST. IN FACT...MARINE CLOUDS ARE
KNOCKING ON THE DOORSTEP OF EUGENE. THE NAM HAS FINALLY PICKED UP ON
THIS IDEA AND SUGGESTS CLOUDS WILL LIKELY ENTER THE SOUTHERN
WILLAMETTE VALLEY BEFORE BURNING BACK INTO THE COAST RANGE LATER THIS
MORNING. THIS IDEA SEEMS PLAUSIBLE SO TRENDED THE SKY FORECAST TO
DEPICT THIS SCENARIO. HOWEVER...WOULD NOT BE SURPRISED TO SEE THESE
CLOUDS SPREAD UP THE ENTIRE WILLAMETTE VALLEY EITHER SO THERE IS A
DECENT AMOUNT OF UNCERTAINTY IN THIS PORTION OF THE FORECAST.
GIVEN THE LOW CLOUDS AND COOLER AIR INFILTRATING OUR SOUTHERN
ZONES...TEMPERATURES WERE NUDGED DOWNWARD IN THIS REGION...BUT IF
CLOUDS WERE TO SPREAD FARTHER NORTH...OUR TEMPERATURE FORECAST IS
LIKELY TOO HIGH FOR THE CENTRAL AND NORTHERN WILLAMETTE VALLEY...TOO.

A FRONT CURRENTLY NEAR 130W WILL WORK ITS WAY INTO NORTHWEST OREGON
AND SOUTHWEST WASHINGTON THIS EVENING. IT APPEARS THE FIRST RAIN
SHOWERS SHOULD ARRIVE ON THE COAST BETWEEN 4 PM AND 6 PM AND BETWEEN
6 PM AND 9 PM ACROSS THE WILLAMETTE VALLEY. QPF STILL LOOKS RATHER
LIGHT WITH THIS SYSTEM.

THE AREA LOOKS TO DRY OUT RELATIVELY QUICKLY SATURDAY
MORNING...EXCEPT ACROSS THE FAR NORTH WHERE A FEW SHOWERS MAY LINGER
THROUGH THE DAY.

RELATIVELY FLAT RIDGING LOOKS TO BRING DRY AND MILD WEATHER TO THE
AREA LATE SATURDAY THROUGH MONDAY. HOWEVER...AN ATMOSPHERIC RIVER
AIMED AT SOUTHWEST BRITISH COLUMBIA RIVER AND NORTHWEST WASHINGTON
WILL REMAIN CLOSE ENOUGH THAT OUR FAR NORTHWEST ZONES WILL CERTAINLY
SEE INCREASE CLOUD COVER COMPARED TO THEIR COUNTERPARTS FARTHER
SOUTH...AND PERHAPS A PERIOD OR TWO OF LIGHT RAIN DURING THIS PERIOD.
/NEUMAN



.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...POCKETS OF IFR FOG AND LOW STRATUS HAVE FORMED OVER
MUCH OF THE REGION THIS MORNING...ALTHOUGH COVERAGE IS NOT AS
EXTENSIVE AS WE SAW YESTERDAY MORNING. EXPECT THE FOG AND STRATUS
TO BURN OFF BETWEEN 16Z AND 18Z. BASED ON SATELLITE OBSERVATIONS
THIS MORNING...IT APPEARS THAT A SOUTHERLY STRATUS SURGE IS
UNDERWAY ALONG THE CENTRAL OR COAST AND THROUGH THE COAST RANGE
GAPS INTO THE WILLAMETTE VALLEY. ADDED AN IFR STRATUS DECK TO THE
KEUG TAF THIS MORNING. THE 12Z NAM AND RAP MODEL GUIDANCE SUGGEST
THE STRATUS MAY SURGE UP THE WILLAMETTE VALLEY THROUGH THE
DAY...LIKELY REACHING KSLE AND WITH AN OUTSIDE CHANCE OF IT GETTING
INTO THE NORTHERN WILLAMETTE VALLEY. CONFIDENCE IN THE FCST MODELS
IS NOT ALL THAT HIGH...SO WILL BE MONITORING SATELLITE TRENDS
CLOSELY.

RAIN AND MVFR CIGS WILL ACCOMPANY THE ARRIVAL OF A COLD FRONT
LATER TODAY AND TONIGHT. EXPECT THE FRONT TO BEGIN TO IMPACT THE
COAST LATE THIS AFTERNOON...AND MOVE INTO THE INTERIOR THIS
EVENING. SHOWERS AND MVFR CIGS MAY LINGER THROUGH MUCH OF SAT
MORNING.

KPDX AND APPROACHES...MAINLY VFR CONDITIONS EXPECTED THIS
MORNING...ALTHOUGH A BRIEF PERIOD OF IFR FOG IS POSSIBLE THROUGH
ABOUT 17Z. THERE IS A SLIGHT CHANCE THAT A SOUTHERLY STRATUS
SURGE WILL BRING IFR CIGS TO THE TERMINAL LATE THIS MORNING OR
THIS AFTERNOON. IF NOT...VFR SHOULD PERSIST INTO THE EVENING. A
COLD FRONT WILL BRING RAIN AND LIKELY MVFR CIGS LATER THIS EVENING
AND OVERNIGHT. PYLE

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS AROUND 10 KT AND SEAS AROUND 8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH TOWARD THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP AHEAD OF THE FRONT. EXTENDED THE SMALL CRAFT
ADVISORY FOR WINDS OVER ALL OF THE WATERS THROUGH LATE TONIGHT.
SEAS MAY CLIMB TO AROUND 10 FT DURING THE PERIOD OF THE STRONGEST
WINDS.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR COASTAL WATERS FROM CAPE SHOALWATER WA TO
     FLORENCE OR OUT 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 1 PM
     PDT THIS AFTERNOON.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 PM
     THIS EVENING TO 2 AM PDT SATURDAY.

&&


$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KOTX 271351
AFDOTX

AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
651 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhanle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 271351
AFDOTX

AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
651 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhanle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 271351
AFDOTX

AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
651 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhanle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 271351
AFDOTX

AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
651 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhanle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 271351
AFDOTX

AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
651 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of the Idaho
Panhanle. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 271159
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
459 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of eastern
Washington. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 271159
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
459 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of eastern
Washington. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 271159
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
459 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of eastern
Washington. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 271159
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
459 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of eastern
Washington. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.

&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively low March sun angle suggest a more
conservative mid 70s for the L-C Valley is prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
12Z TAFS: Valley fog will impact ceilings and visibilities around
Spokane, Coeur D`Alene, Sandpoint, Bonners Ferry, and Colville
through 16z this morning. A vigorous early spring cold front will
collide with an unseasonbly warm and moist air mass tonight
bringing widespread showers and embedded thunderstorms to north
Idaho and the eastern third of Washington. Strong winds will also
develop behind the cold front after 07-09z and persist into Sunday
afternoon. Gusts of 30-35kts will be possible in Spokane, Coeur
D`Alene, Pullman, and Lewiston near the end of the TAF period
09-12z. /GKoch



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KSEW 271043
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
345 AM PDT FRI MAR 27 2015

.SYNOPSIS...A FRONT WILL BRING RAIN TO THE COAST THIS AFTERNOON AND
TO THE INTERIOR THIS EVENING. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS MOSTLY INTO BRITISH COLUMBIA OVER THE WEEKEND. A COLD FRONT
WILL REACH WESTERN WASHINGTON LATE MONDAY. A COOL SHOWERY UPPER
TROUGH WILL BE OVER THE AREA TUESDAY AND WEDNESDAY.

&&

.SHORT TERM...AN UPPER RIDGE OVER EASTERN WASHINGTON THIS MORNING
WILL SHIFT INLAND TODAY AS A FRONT NEARS. RAIN SHOULD REACH THE
COAST THIS AFTERNOON...THEN SPREAD INTO THE INTERIOR THIS EVENING.
RAIN WILL CHANGE TO SHOWERS BEHIND THE FRONT LATER TONIGHT. SHOWERS
SHOULD BE MAINLY CONFINED TO THE CASCADES AND PERHAPS A PUGET SOUND
CONVERGENCE ZONE BY SATURDAY.

WESTERLY FLOW ALOFT WILL PREVAIL SATURDAY NIGHT AND SUNDAY. A PLUME
OF MOISTURE IN THE FLOW ALOFT WILL BE MAINLY AIMED AT VANCOUVER
ISLAND. THE NORTH COAST SHOULD HAVE RAIN AT TIMES DURING THIS PERIOD
WITH CHANCE POPS ELSEWHERE NEAR THE COAST AND NORTH INTERIOR. MAINLY
DRY WEATHER IS EXPECTED FURTHER SOUTH AND EAST. SCHNEIDER

.LONG TERM...A FRONT WILL REACH THE AREA LATE MONDAY OR MONDAY NIGHT
FOR A PERIOD OF RAIN. COOLER SHOWERY WEATHER WILL PREVAIL TUESDAY
AND WEDNESDAY WITH A BROAD UPPER TROUGH OVER THE PACIFIC NORTHWEST.
MODELS SUGGEST DRIER WEATHER IS POSSIBLE THURSDAY AS AN UPPER RIDGE
MOVES OVER THE REGION. SCHNEIDER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...THE UPPER LEVEL RIDGE AXIS WILL CONTINUE TO SHIFT EAST
THIS MORNING WITH SOUTHWESTERLY FLOW ALOFT. GENERALLY DRY AND STABLE
CONDITIONS WITH LIGHT WINDS THIS MORNING. PATCHY LOW CLOUDS AND FOG
HAS BEGUN TO DEVELOP...MAINLY OVER THE SOUTH SOUND AND COAST. A COLD
FRONT WILL APPROACH THE AREA FROM THE WEST TODAY...MOVING ONTO THE
COAST DURING THE AFTERNOON AND INLAND THIS EVENING. INCREASING
SOUTHERLY FLOW AT LOW LEVELS THIS EVENING. RAIN WILL SPREAD INLAND
AFTER 00Z AND TRANSITION TO SHOWERS SATURDAY MORNING.

KSEA...VFR CONDITIONS TODAY WILL BECOME MVFR OVERNIGHT AS A FRONT
MOVES INTO THE INTERIOR. RAIN WILL REACH THE TERMINAL LATE IN THE
EVENING. LIGHT NE WINDS WILL BECOME SW 10 TO 12 KT IN THE AFTERNOON.

&&

.MARINE...WEAK HIGH PRESSURE AND LIGHT LIGHT WINDS OVER AREA WATERS
WILL GIVE WAY TO INCREASING SOUTHERLY FLOW AS A COLD FRONT
APPROACHES THE COASTAL WATERS THIS AFTERNOON. THE FRONT WILL MOVE
INSHORE LATE THIS AFTERNOON AND EVENING. EXPECT INCREASING SOUTHERLY
WINDS OVER THE COASTAL WATERS DURING THE AFTERNOON...AND THROUGH THE
INTERIOR THIS EVENING. ONSHORE FLOW VIA THE STRAIT WILL FOLLOW THE
FRONT LATER THIS EVENING THROUGH SATURDAY MORNING. SMALL CRAFT
ADVISORY WINDS ARE FORECAST FOR THE COASTAL WATERS DURING THE
AFTERNOON AND THE CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET
SOUND AND HOOD CANAL TONIGHT INTO SATURDAY MORNING. HIGH PRESSURE
WILL REBUILD OVER THE REGION ON SATURDAY WITH A BREAK IN THE WINDS
OVER AREA WATERS. AN APPROACHING FRONTAL BOUNDARY WILL BRING
INCREASING SOUTHWESTERLY WINDS TO THE COASTAL WATERS SATURDAY NIGHT
AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS EXCEPT WEST ENTRANCE STRAIT OF
     JUAN DE FUCA.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML







000
FXUS66 KSEW 271043
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
345 AM PDT FRI MAR 27 2015

.SYNOPSIS...A FRONT WILL BRING RAIN TO THE COAST THIS AFTERNOON AND
TO THE INTERIOR THIS EVENING. A WEAK UPPER RIDGE WILL STEER WEATHER
SYSTEMS MOSTLY INTO BRITISH COLUMBIA OVER THE WEEKEND. A COLD FRONT
WILL REACH WESTERN WASHINGTON LATE MONDAY. A COOL SHOWERY UPPER
TROUGH WILL BE OVER THE AREA TUESDAY AND WEDNESDAY.

&&

.SHORT TERM...AN UPPER RIDGE OVER EASTERN WASHINGTON THIS MORNING
WILL SHIFT INLAND TODAY AS A FRONT NEARS. RAIN SHOULD REACH THE
COAST THIS AFTERNOON...THEN SPREAD INTO THE INTERIOR THIS EVENING.
RAIN WILL CHANGE TO SHOWERS BEHIND THE FRONT LATER TONIGHT. SHOWERS
SHOULD BE MAINLY CONFINED TO THE CASCADES AND PERHAPS A PUGET SOUND
CONVERGENCE ZONE BY SATURDAY.

WESTERLY FLOW ALOFT WILL PREVAIL SATURDAY NIGHT AND SUNDAY. A PLUME
OF MOISTURE IN THE FLOW ALOFT WILL BE MAINLY AIMED AT VANCOUVER
ISLAND. THE NORTH COAST SHOULD HAVE RAIN AT TIMES DURING THIS PERIOD
WITH CHANCE POPS ELSEWHERE NEAR THE COAST AND NORTH INTERIOR. MAINLY
DRY WEATHER IS EXPECTED FURTHER SOUTH AND EAST. SCHNEIDER

.LONG TERM...A FRONT WILL REACH THE AREA LATE MONDAY OR MONDAY NIGHT
FOR A PERIOD OF RAIN. COOLER SHOWERY WEATHER WILL PREVAIL TUESDAY
AND WEDNESDAY WITH A BROAD UPPER TROUGH OVER THE PACIFIC NORTHWEST.
MODELS SUGGEST DRIER WEATHER IS POSSIBLE THURSDAY AS AN UPPER RIDGE
MOVES OVER THE REGION. SCHNEIDER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...THE UPPER LEVEL RIDGE AXIS WILL CONTINUE TO SHIFT EAST
THIS MORNING WITH SOUTHWESTERLY FLOW ALOFT. GENERALLY DRY AND STABLE
CONDITIONS WITH LIGHT WINDS THIS MORNING. PATCHY LOW CLOUDS AND FOG
HAS BEGUN TO DEVELOP...MAINLY OVER THE SOUTH SOUND AND COAST. A COLD
FRONT WILL APPROACH THE AREA FROM THE WEST TODAY...MOVING ONTO THE
COAST DURING THE AFTERNOON AND INLAND THIS EVENING. INCREASING
SOUTHERLY FLOW AT LOW LEVELS THIS EVENING. RAIN WILL SPREAD INLAND
AFTER 00Z AND TRANSITION TO SHOWERS SATURDAY MORNING.

KSEA...VFR CONDITIONS TODAY WILL BECOME MVFR OVERNIGHT AS A FRONT
MOVES INTO THE INTERIOR. RAIN WILL REACH THE TERMINAL LATE IN THE
EVENING. LIGHT NE WINDS WILL BECOME SW 10 TO 12 KT IN THE AFTERNOON.

&&

.MARINE...WEAK HIGH PRESSURE AND LIGHT LIGHT WINDS OVER AREA WATERS
WILL GIVE WAY TO INCREASING SOUTHERLY FLOW AS A COLD FRONT
APPROACHES THE COASTAL WATERS THIS AFTERNOON. THE FRONT WILL MOVE
INSHORE LATE THIS AFTERNOON AND EVENING. EXPECT INCREASING SOUTHERLY
WINDS OVER THE COASTAL WATERS DURING THE AFTERNOON...AND THROUGH THE
INTERIOR THIS EVENING. ONSHORE FLOW VIA THE STRAIT WILL FOLLOW THE
FRONT LATER THIS EVENING THROUGH SATURDAY MORNING. SMALL CRAFT
ADVISORY WINDS ARE FORECAST FOR THE COASTAL WATERS DURING THE
AFTERNOON AND THE CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET
SOUND AND HOOD CANAL TONIGHT INTO SATURDAY MORNING. HIGH PRESSURE
WILL REBUILD OVER THE REGION ON SATURDAY WITH A BREAK IN THE WINDS
OVER AREA WATERS. AN APPROACHING FRONTAL BOUNDARY WILL BRING
INCREASING SOUTHWESTERLY WINDS TO THE COASTAL WATERS SATURDAY NIGHT
AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY ALL WATERS EXCEPT WEST ENTRANCE STRAIT OF
     JUAN DE FUCA.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML








000
FXUS66 KOTX 270955
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
254 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of eastern
Washington. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.



&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively lower March sun angle suggest a more
conservative mid 70s for the L-C Valley is more prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
06Z TAFS: High pressure will shift over the region through tonight
into Friday with cirrus clouds continuing to develop in the lee of
the Cascades. Fog is also expected to redevelop tonight across the
mountain valleys. This may impact KSFF and KCOE early Friday
morning with reduced visibility possible, but confidence is low.
An approaching cold front off of the Pacific and increasing mid
level instability will result in convection late in the afternoon
across OR and southeast WA. Thunderstorms will be possible along
the Blue Mtns and into the Central Panhandle Mtns and may impact
the KLWS and KPUW TAF locations. /SVH



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 270955
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
254 AM PDT FRI MAR 27 2015

.SYNOPSIS...
Record warm temperatures will be possible today over much of the
Inland Northwest. A fast moving cold front will arrive tonight
bringing widespread showers, gusty winds, and the potential for
thunderstorms to southeast Washington and portions of eastern
Washington. Saturday will be quite windy with gusts of 40 mph
possible over Palouse, West Plains, and Upper Columbia Basin. The
weather Sunday and Monday should be mild and relatively dry.
Another fast moving front on Tuesday will bring more showers and
wind.



&&

.DISCUSSION...

Today: Unseasonably warm temperatures will be the main story for
today. A highly amplified upper level ridge/trough pattern will
increase deep southerly flow over the Pacific Northwest this
afternoon. Warm mid-level temperatures will be advected into the
region. The 850mb thermal ridge will extend from central Oregon
into the Idaho Panhandle during the afternoon with temperatures
as warm as 14-16C over southeast Washington and the southern
Panhandle. In May or June, 850mb temperatures of 14-16C would
yield highs in the low 80s, but the potential for some cloudiness
and the relatively lower March sun angle suggest a more
conservative mid 70s for the L-C Valley is more prudent. The mild
southerly flow will also destabilize the atmosphere ahead of
tonight`s cold front. At this time, it appears that there will
enough convective inhibition (mid-level capping) to impede showers
and thunderstorms this afternoon. The weakest capping according to
the GFS and NAM will be over northeast Oregon, southeast
Washington, and the southern/central Panhandle. A 20 percent
chance for showers and thunderstorms has been introduced after 2PM
followed by much higher chances this evening with the arrival of
strong frontal forcing.

Tonight and Saturday: A fast moving frontal system will collide
with our anomalously warm/moist air mass this evening. Widespread
showers will blossom along the frontal system by mid evening over
the eastern third of Washington and spread quickly into the Idaho
Panhandle by midnight.

* Thunderstorm potential: The front will probably not arrive early
  enough in the afternoon to tap into peak heating and maximum
  instability. However, given the tight thermal packing expected
  with the front, steep mid-level lapse rates, and abundance of
  mid/low level moisture, there should be a decent chance for
  thunderstorms. The increasing southwest surface pressure
  gradient combined with the potential for downdraft winds
  suggests a small threat for strong wind gusts this evening with
  thunderstorms. Cold advection and west winds undercutting the
  southwesterlies aloft on forecast hodographs do not fit the
  damaging wind prototype, so long-lived bowing segments will
  probably not be a likely scenario. A few small hail reports may
  be possible if the model soundings are accurate in their
  depiction of deep layer CAPE above the -10 to -20C layer.

* Post cold front winds: There is a decent probability that a Wind
  Advisory will be necessary for the Palouse, West Plains and
  portions of the Columbia Basin Saturday morning. Strong deep
  layer cold advection, 850mb winds of 40-50kts, and a tight
  surface pressure gradient suggest the potential for wind gusts
  of 40-45 mph over a good portion of east central and southeast
  Washington Saturday morning. Gradients are progged to relax a
  bit during the day, but gusty conditions will likely persist
  well into the afternoon hours on Saturday. /GKoch

Sunday through Thursday: The weather pattern will remain
progressive for much of next week. Initially, the later half of
the weekend will turn quieter and more stable as a flat ridge sets
up over the Inland Northwest. Pacific moisture will stream over
top of the ridge. This coupled with weak isentropic lift will give
way to plenty of cloud cover and the potential of light
precipitation across the higher terrain near the Canadian border.
Temperatures will remain mild and lighter winds anticipated, even
into Monday as the upper ridge amplifies and warm air funnels into
the region from the south. By Monday night and into Tuesday, a
vigorous cold front will sweep inland and bring the threat of
convection. Instability indices look too weak to introduce the
possibility of thunder, but it will need to be monitored. Winds
will turn breezy and gusty by Tuesday in the wake of the front
with gusts of up to near 35 mph. After this feature exits to the
east, on Wednesday another weather disturbance coupled with a
surface occluded front slides in from the northwest and brings
another round of showers. The main brunt will be mountains from
the Cascades to the Panhandle mountains. May see more breezy winds
across the Columbia Basin by Wednesday afternoon and evening. With
the passage of each of the weather disturbances, the storm track
slowly sags south and the jet stream creeps further into
Washington and north Idaho. By Thursday, another weather impulse
ripples through the region in addition to cold air aloft.
Instability values lower, leading to the potential for more
thunder Thursday afternoon and early evening. Also with each
passing impulse, temperatures cool slightly and snow levels lower
a bit, giving way to a better chance of mountain snow.
Temperatures which start above normal by this weekend, gradually
cool to more typically readings for late March. /rfox.

&&

.AVIATION...
06Z TAFS: High pressure will shift over the region through tonight
into Friday with cirrus clouds continuing to develop in the lee of
the Cascades. Fog is also expected to redevelop tonight across the
mountain valleys. This may impact KSFF and KCOE early Friday
morning with reduced visibility possible, but confidence is low.
An approaching cold front off of the Pacific and increasing mid
level instability will result in convection late in the afternoon
across OR and southeast WA. Thunderstorms will be possible along
the Blue Mtns and into the Central Panhandle Mtns and may impact
the KLWS and KPUW TAF locations. /SVH



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        69  47  60  39  59  40 /   0  70  40   0  10  10
Coeur d`Alene  69  45  59  38  59  38 /  10  80  70   0  10  10
Pullman        71  46  58  40  58  41 /  10  90  40   0  10  10
Lewiston       75  51  64  41  63  42 /  10  90  20   0   0  10
Colville       70  44  63  39  60  39 /  10  50  50   0  10  10
Sandpoint      66  45  56  38  57  36 /  10  80  80   0  10  10
Kellogg        68  42  53  36  56  38 /  10  90  90   0  10  10
Moses Lake     74  48  66  40  65  39 /   0  20  10   0   0  10
Wenatchee      73  48  65  43  65  44 /   0  10  10   0  10  10
Omak           70  44  66  39  64  39 /   0  10  10  10  10  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KPQR 270952
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
252 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...FRIDAY THROUGH SUNDAY...OBSERVATIONS AND SATELLITE
IMAGERY SHOW FOG JUST STARTING TO DEVELOP IN THE VALLEY THIS MORNING.
LOW STRATUS MOVING UP THE COAST LOOKS LIKE ITS CURRENTLY LOCATED JUST
SOUTH OF NEWPORT AND WILL CONTINUE UP THE COAST THROUGH THE OVERNIGHT
HOURS. HIGH CLOUDS AHEAD OF THE NEXT SYSTEM WILL BEGIN TO MOVE INTO
THE AREA DURING THE MORNING HOURS BUT AT THIS POINT IT LOOKS LIKE THE
RIDGE CURRENTLY IN PLACE WILL HOLD THEM OFF THROUGH THE OVERNIGHT.
WITH LACK OF CLOUD COVER...COULD SEE SOME DENSE FOG AGAIN THIS
MORNING BUT VISIBILITIES SEEM TO BE WAVERING SO FAR SO WILL NOT ISSUE
A DENSE FOG ADVISORY AT THIS POINT.

AS A FRONT APPROACHES THE AREA TODAY...FOG SHOULD DISSIPATE BY AROUND
NOON. MODELS ARE TRENDING A LITTLE SLOWER WITH THE ARRIVAL OF
PRECIP...BUT IT LOOKS LIKE RAIN SHOULD BEGIN ALONG THE COAST BEFORE
00Z AND THEN SPREAD INLAND THROUGH THE LATE AFTERNOON AND EVENING
HOURS. HAVE LEFT A SLIGHT CHANCE OF THUNDER IN FOR THE OREGON
CASCADES THIS AFTERNOON BUT IT MAY BE LIMITED BY AVAILABLE MOISTURE
AS MODELS ARE SHOWING SLIGHTLY HIGHER DEWPOINTS THAN SEEMS COMPLETELY
REASONABLE FOR THE HIGHER TERRAIN. ALTHOUGH SNOW LEVELS WILL BE
DROPPING STEADILY THROUGH SATURDAY...THEY WILL REMAIN ABOVE 7000 FT
FOR THE DURATION OF PRECIP ASSOCIATED WITH THIS FRONT...SO NO
SIGNIFICANT SNOWFALL IS EXPECTED.

A RELATIVELY FLAT RIDGE WILL BUILD INTO THE REGION LATE SATURDAY AND
SUNDAY. HOWEVER MINIMAL RAIN CHANCES WILL LINGER OVER THE NW CORNER
OF THE FORECAST AREA DUE TO ANOTHER SYSTEM PASSING TO THE NORTH
SATURDAY NIGHT INTO SUNDAY. WITH MOSTLY DRY WEATHER
SUNDAY...THOUGH...TEMPERATURES WILL WARM BACK A NUMBER OF DEGREES
ABOVE NORMAL INLAND WITH HIGHS IN THE MID 60S IN THE VALLEY. BOWEN

.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...MOSTLY VFR CONDITIONS WITH LIGHT WINDS...EXPECT IFR
AND LIFR FOG/LOW STRATUS TO DEVELOP BETWEEN 10-12Z EARLY THIS
MORNING AND LIFT BY 18-20Z LATE THIS MORNING. CONDITIONS WILL
BRIEFLY STAY VFR THROUGH THIS AFTERNOON...BUT SLOWLY DETERIORATE
TOWARDS MVFR BY 08Z SAT AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS BY 12Z THIS MORNING AND REMAIN IN PLACE THROUGH
AT LEAST 18-20Z TODAY. BRIEF VFR CONDITIONS THIS AFTERNOON...THEN
EXPECT CONDITIONS TO SLOWLY DETERIORATE TOWARDS MVFR BETWEEN
04-06Z SAT AS A COLD FRONT MOVES ACROSS THE REGION. /27

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS BELOW 10 KT AND SEAS AROUND 7-8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH INTO THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT.
THE SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT THROUGH LATE
TONIGHT OVER THE OUTER COASTAL WATERS. WINDS OVER THE INNER
WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL THEY WILL
LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN ADVISORY. SEAS
WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST WINDS...BUT SHOULD
REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS.

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO FLORENCE
     OR FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     THIS MORNING TO 1 PM PDT THIS AFTERNOON...THEN AGAIN FROM
     9 PM THIS EVENING TO 2 AM PDT SATURDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 270952
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
252 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...FRIDAY THROUGH SUNDAY...OBSERVATIONS AND SATELLITE
IMAGERY SHOW FOG JUST STARTING TO DEVELOP IN THE VALLEY THIS MORNING.
LOW STRATUS MOVING UP THE COAST LOOKS LIKE ITS CURRENTLY LOCATED JUST
SOUTH OF NEWPORT AND WILL CONTINUE UP THE COAST THROUGH THE OVERNIGHT
HOURS. HIGH CLOUDS AHEAD OF THE NEXT SYSTEM WILL BEGIN TO MOVE INTO
THE AREA DURING THE MORNING HOURS BUT AT THIS POINT IT LOOKS LIKE THE
RIDGE CURRENTLY IN PLACE WILL HOLD THEM OFF THROUGH THE OVERNIGHT.
WITH LACK OF CLOUD COVER...COULD SEE SOME DENSE FOG AGAIN THIS
MORNING BUT VISIBILITIES SEEM TO BE WAVERING SO FAR SO WILL NOT ISSUE
A DENSE FOG ADVISORY AT THIS POINT.

AS A FRONT APPROACHES THE AREA TODAY...FOG SHOULD DISSIPATE BY AROUND
NOON. MODELS ARE TRENDING A LITTLE SLOWER WITH THE ARRIVAL OF
PRECIP...BUT IT LOOKS LIKE RAIN SHOULD BEGIN ALONG THE COAST BEFORE
00Z AND THEN SPREAD INLAND THROUGH THE LATE AFTERNOON AND EVENING
HOURS. HAVE LEFT A SLIGHT CHANCE OF THUNDER IN FOR THE OREGON
CASCADES THIS AFTERNOON BUT IT MAY BE LIMITED BY AVAILABLE MOISTURE
AS MODELS ARE SHOWING SLIGHTLY HIGHER DEWPOINTS THAN SEEMS COMPLETELY
REASONABLE FOR THE HIGHER TERRAIN. ALTHOUGH SNOW LEVELS WILL BE
DROPPING STEADILY THROUGH SATURDAY...THEY WILL REMAIN ABOVE 7000 FT
FOR THE DURATION OF PRECIP ASSOCIATED WITH THIS FRONT...SO NO
SIGNIFICANT SNOWFALL IS EXPECTED.

A RELATIVELY FLAT RIDGE WILL BUILD INTO THE REGION LATE SATURDAY AND
SUNDAY. HOWEVER MINIMAL RAIN CHANCES WILL LINGER OVER THE NW CORNER
OF THE FORECAST AREA DUE TO ANOTHER SYSTEM PASSING TO THE NORTH
SATURDAY NIGHT INTO SUNDAY. WITH MOSTLY DRY WEATHER
SUNDAY...THOUGH...TEMPERATURES WILL WARM BACK A NUMBER OF DEGREES
ABOVE NORMAL INLAND WITH HIGHS IN THE MID 60S IN THE VALLEY. BOWEN

.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...MOSTLY VFR CONDITIONS WITH LIGHT WINDS...EXPECT IFR
AND LIFR FOG/LOW STRATUS TO DEVELOP BETWEEN 10-12Z EARLY THIS
MORNING AND LIFT BY 18-20Z LATE THIS MORNING. CONDITIONS WILL
BRIEFLY STAY VFR THROUGH THIS AFTERNOON...BUT SLOWLY DETERIORATE
TOWARDS MVFR BY 08Z SAT AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS BY 12Z THIS MORNING AND REMAIN IN PLACE THROUGH
AT LEAST 18-20Z TODAY. BRIEF VFR CONDITIONS THIS AFTERNOON...THEN
EXPECT CONDITIONS TO SLOWLY DETERIORATE TOWARDS MVFR BETWEEN
04-06Z SAT AS A COLD FRONT MOVES ACROSS THE REGION. /27

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS BELOW 10 KT AND SEAS AROUND 7-8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH INTO THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT.
THE SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT THROUGH LATE
TONIGHT OVER THE OUTER COASTAL WATERS. WINDS OVER THE INNER
WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL THEY WILL
LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN ADVISORY. SEAS
WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST WINDS...BUT SHOULD
REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS.

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO FLORENCE
     OR FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     THIS MORNING TO 1 PM PDT THIS AFTERNOON...THEN AGAIN FROM
     9 PM THIS EVENING TO 2 AM PDT SATURDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 270952
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
252 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...FRIDAY THROUGH SUNDAY...OBSERVATIONS AND SATELLITE
IMAGERY SHOW FOG JUST STARTING TO DEVELOP IN THE VALLEY THIS MORNING.
LOW STRATUS MOVING UP THE COAST LOOKS LIKE ITS CURRENTLY LOCATED JUST
SOUTH OF NEWPORT AND WILL CONTINUE UP THE COAST THROUGH THE OVERNIGHT
HOURS. HIGH CLOUDS AHEAD OF THE NEXT SYSTEM WILL BEGIN TO MOVE INTO
THE AREA DURING THE MORNING HOURS BUT AT THIS POINT IT LOOKS LIKE THE
RIDGE CURRENTLY IN PLACE WILL HOLD THEM OFF THROUGH THE OVERNIGHT.
WITH LACK OF CLOUD COVER...COULD SEE SOME DENSE FOG AGAIN THIS
MORNING BUT VISIBILITIES SEEM TO BE WAVERING SO FAR SO WILL NOT ISSUE
A DENSE FOG ADVISORY AT THIS POINT.

AS A FRONT APPROACHES THE AREA TODAY...FOG SHOULD DISSIPATE BY AROUND
NOON. MODELS ARE TRENDING A LITTLE SLOWER WITH THE ARRIVAL OF
PRECIP...BUT IT LOOKS LIKE RAIN SHOULD BEGIN ALONG THE COAST BEFORE
00Z AND THEN SPREAD INLAND THROUGH THE LATE AFTERNOON AND EVENING
HOURS. HAVE LEFT A SLIGHT CHANCE OF THUNDER IN FOR THE OREGON
CASCADES THIS AFTERNOON BUT IT MAY BE LIMITED BY AVAILABLE MOISTURE
AS MODELS ARE SHOWING SLIGHTLY HIGHER DEWPOINTS THAN SEEMS COMPLETELY
REASONABLE FOR THE HIGHER TERRAIN. ALTHOUGH SNOW LEVELS WILL BE
DROPPING STEADILY THROUGH SATURDAY...THEY WILL REMAIN ABOVE 7000 FT
FOR THE DURATION OF PRECIP ASSOCIATED WITH THIS FRONT...SO NO
SIGNIFICANT SNOWFALL IS EXPECTED.

A RELATIVELY FLAT RIDGE WILL BUILD INTO THE REGION LATE SATURDAY AND
SUNDAY. HOWEVER MINIMAL RAIN CHANCES WILL LINGER OVER THE NW CORNER
OF THE FORECAST AREA DUE TO ANOTHER SYSTEM PASSING TO THE NORTH
SATURDAY NIGHT INTO SUNDAY. WITH MOSTLY DRY WEATHER
SUNDAY...THOUGH...TEMPERATURES WILL WARM BACK A NUMBER OF DEGREES
ABOVE NORMAL INLAND WITH HIGHS IN THE MID 60S IN THE VALLEY. BOWEN

.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...MOSTLY VFR CONDITIONS WITH LIGHT WINDS...EXPECT IFR
AND LIFR FOG/LOW STRATUS TO DEVELOP BETWEEN 10-12Z EARLY THIS
MORNING AND LIFT BY 18-20Z LATE THIS MORNING. CONDITIONS WILL
BRIEFLY STAY VFR THROUGH THIS AFTERNOON...BUT SLOWLY DETERIORATE
TOWARDS MVFR BY 08Z SAT AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS BY 12Z THIS MORNING AND REMAIN IN PLACE THROUGH
AT LEAST 18-20Z TODAY. BRIEF VFR CONDITIONS THIS AFTERNOON...THEN
EXPECT CONDITIONS TO SLOWLY DETERIORATE TOWARDS MVFR BETWEEN
04-06Z SAT AS A COLD FRONT MOVES ACROSS THE REGION. /27

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS BELOW 10 KT AND SEAS AROUND 7-8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH INTO THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT.
THE SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT THROUGH LATE
TONIGHT OVER THE OUTER COASTAL WATERS. WINDS OVER THE INNER
WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL THEY WILL
LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN ADVISORY. SEAS
WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST WINDS...BUT SHOULD
REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS.

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO FLORENCE
     OR FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     THIS MORNING TO 1 PM PDT THIS AFTERNOON...THEN AGAIN FROM
     9 PM THIS EVENING TO 2 AM PDT SATURDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 270952
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
252 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...FRIDAY THROUGH SUNDAY...OBSERVATIONS AND SATELLITE
IMAGERY SHOW FOG JUST STARTING TO DEVELOP IN THE VALLEY THIS MORNING.
LOW STRATUS MOVING UP THE COAST LOOKS LIKE ITS CURRENTLY LOCATED JUST
SOUTH OF NEWPORT AND WILL CONTINUE UP THE COAST THROUGH THE OVERNIGHT
HOURS. HIGH CLOUDS AHEAD OF THE NEXT SYSTEM WILL BEGIN TO MOVE INTO
THE AREA DURING THE MORNING HOURS BUT AT THIS POINT IT LOOKS LIKE THE
RIDGE CURRENTLY IN PLACE WILL HOLD THEM OFF THROUGH THE OVERNIGHT.
WITH LACK OF CLOUD COVER...COULD SEE SOME DENSE FOG AGAIN THIS
MORNING BUT VISIBILITIES SEEM TO BE WAVERING SO FAR SO WILL NOT ISSUE
A DENSE FOG ADVISORY AT THIS POINT.

AS A FRONT APPROACHES THE AREA TODAY...FOG SHOULD DISSIPATE BY AROUND
NOON. MODELS ARE TRENDING A LITTLE SLOWER WITH THE ARRIVAL OF
PRECIP...BUT IT LOOKS LIKE RAIN SHOULD BEGIN ALONG THE COAST BEFORE
00Z AND THEN SPREAD INLAND THROUGH THE LATE AFTERNOON AND EVENING
HOURS. HAVE LEFT A SLIGHT CHANCE OF THUNDER IN FOR THE OREGON
CASCADES THIS AFTERNOON BUT IT MAY BE LIMITED BY AVAILABLE MOISTURE
AS MODELS ARE SHOWING SLIGHTLY HIGHER DEWPOINTS THAN SEEMS COMPLETELY
REASONABLE FOR THE HIGHER TERRAIN. ALTHOUGH SNOW LEVELS WILL BE
DROPPING STEADILY THROUGH SATURDAY...THEY WILL REMAIN ABOVE 7000 FT
FOR THE DURATION OF PRECIP ASSOCIATED WITH THIS FRONT...SO NO
SIGNIFICANT SNOWFALL IS EXPECTED.

A RELATIVELY FLAT RIDGE WILL BUILD INTO THE REGION LATE SATURDAY AND
SUNDAY. HOWEVER MINIMAL RAIN CHANCES WILL LINGER OVER THE NW CORNER
OF THE FORECAST AREA DUE TO ANOTHER SYSTEM PASSING TO THE NORTH
SATURDAY NIGHT INTO SUNDAY. WITH MOSTLY DRY WEATHER
SUNDAY...THOUGH...TEMPERATURES WILL WARM BACK A NUMBER OF DEGREES
ABOVE NORMAL INLAND WITH HIGHS IN THE MID 60S IN THE VALLEY. BOWEN

.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...MOSTLY VFR CONDITIONS WITH LIGHT WINDS...EXPECT IFR
AND LIFR FOG/LOW STRATUS TO DEVELOP BETWEEN 10-12Z EARLY THIS
MORNING AND LIFT BY 18-20Z LATE THIS MORNING. CONDITIONS WILL
BRIEFLY STAY VFR THROUGH THIS AFTERNOON...BUT SLOWLY DETERIORATE
TOWARDS MVFR BY 08Z SAT AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS BY 12Z THIS MORNING AND REMAIN IN PLACE THROUGH
AT LEAST 18-20Z TODAY. BRIEF VFR CONDITIONS THIS AFTERNOON...THEN
EXPECT CONDITIONS TO SLOWLY DETERIORATE TOWARDS MVFR BETWEEN
04-06Z SAT AS A COLD FRONT MOVES ACROSS THE REGION. /27

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS BELOW 10 KT AND SEAS AROUND 7-8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH INTO THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT.
THE SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT THROUGH LATE
TONIGHT OVER THE OUTER COASTAL WATERS. WINDS OVER THE INNER
WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL THEY WILL
LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN ADVISORY. SEAS
WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST WINDS...BUT SHOULD
REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS.

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO FLORENCE
     OR FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     THIS MORNING TO 1 PM PDT THIS AFTERNOON...THEN AGAIN FROM
     9 PM THIS EVENING TO 2 AM PDT SATURDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 270952
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
252 AM PDT FRI MAR 27 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...FRIDAY THROUGH SUNDAY...OBSERVATIONS AND SATELLITE
IMAGERY SHOW FOG JUST STARTING TO DEVELOP IN THE VALLEY THIS MORNING.
LOW STRATUS MOVING UP THE COAST LOOKS LIKE ITS CURRENTLY LOCATED JUST
SOUTH OF NEWPORT AND WILL CONTINUE UP THE COAST THROUGH THE OVERNIGHT
HOURS. HIGH CLOUDS AHEAD OF THE NEXT SYSTEM WILL BEGIN TO MOVE INTO
THE AREA DURING THE MORNING HOURS BUT AT THIS POINT IT LOOKS LIKE THE
RIDGE CURRENTLY IN PLACE WILL HOLD THEM OFF THROUGH THE OVERNIGHT.
WITH LACK OF CLOUD COVER...COULD SEE SOME DENSE FOG AGAIN THIS
MORNING BUT VISIBILITIES SEEM TO BE WAVERING SO FAR SO WILL NOT ISSUE
A DENSE FOG ADVISORY AT THIS POINT.

AS A FRONT APPROACHES THE AREA TODAY...FOG SHOULD DISSIPATE BY AROUND
NOON. MODELS ARE TRENDING A LITTLE SLOWER WITH THE ARRIVAL OF
PRECIP...BUT IT LOOKS LIKE RAIN SHOULD BEGIN ALONG THE COAST BEFORE
00Z AND THEN SPREAD INLAND THROUGH THE LATE AFTERNOON AND EVENING
HOURS. HAVE LEFT A SLIGHT CHANCE OF THUNDER IN FOR THE OREGON
CASCADES THIS AFTERNOON BUT IT MAY BE LIMITED BY AVAILABLE MOISTURE
AS MODELS ARE SHOWING SLIGHTLY HIGHER DEWPOINTS THAN SEEMS COMPLETELY
REASONABLE FOR THE HIGHER TERRAIN. ALTHOUGH SNOW LEVELS WILL BE
DROPPING STEADILY THROUGH SATURDAY...THEY WILL REMAIN ABOVE 7000 FT
FOR THE DURATION OF PRECIP ASSOCIATED WITH THIS FRONT...SO NO
SIGNIFICANT SNOWFALL IS EXPECTED.

A RELATIVELY FLAT RIDGE WILL BUILD INTO THE REGION LATE SATURDAY AND
SUNDAY. HOWEVER MINIMAL RAIN CHANCES WILL LINGER OVER THE NW CORNER
OF THE FORECAST AREA DUE TO ANOTHER SYSTEM PASSING TO THE NORTH
SATURDAY NIGHT INTO SUNDAY. WITH MOSTLY DRY WEATHER
SUNDAY...THOUGH...TEMPERATURES WILL WARM BACK A NUMBER OF DEGREES
ABOVE NORMAL INLAND WITH HIGHS IN THE MID 60S IN THE VALLEY. BOWEN

.LONG TERM (PREVIOUS DISCUSSION)...SUN NIGHT THROUGH THU...OVERALL
PATTERN REMAINS RATHER ZONAL...WITH WESTERLY FLOW ALOFT OVER THE
REGION. THIS MEANS FRONTS WILL PUSH ACROSS THE REGION FROM TIME TO
TIME...BUT NO SIGNIFICANTLY STRONG OR ORGANIZED SYSTEMS EXPECTED.
CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND OF RAIN FOR LATE IN
THE DAY AND MON NIGHT. LIKELY SEE SHOWERS CONTINUE ON TUE AND TUE
NIGHT AS COOLER AIR ALOFT PUSHES ACROSS REGION.
AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS MODELS
DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER BUT KEEP
SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE TEMPERATURES FOR
SECOND HALF OF NEXT WEEK. ROCKEY.

&&

.AVIATION...MOSTLY VFR CONDITIONS WITH LIGHT WINDS...EXPECT IFR
AND LIFR FOG/LOW STRATUS TO DEVELOP BETWEEN 10-12Z EARLY THIS
MORNING AND LIFT BY 18-20Z LATE THIS MORNING. CONDITIONS WILL
BRIEFLY STAY VFR THROUGH THIS AFTERNOON...BUT SLOWLY DETERIORATE
TOWARDS MVFR BY 08Z SAT AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS BY 12Z THIS MORNING AND REMAIN IN PLACE THROUGH
AT LEAST 18-20Z TODAY. BRIEF VFR CONDITIONS THIS AFTERNOON...THEN
EXPECT CONDITIONS TO SLOWLY DETERIORATE TOWARDS MVFR BETWEEN
04-06Z SAT AS A COLD FRONT MOVES ACROSS THE REGION. /27

&&

.MARINE...BENIGN CONDITIONS PREVAIL THROUGH LATE THIS MORNING
WITH WINDS BELOW 10 KT AND SEAS AROUND 7-8 FT UNDER WEAK HIGH
PRESSURE. A COLD FRONT WILL PUSH INTO THE WATERS THIS AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH WITH GUSTS TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT.
THE SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT THROUGH LATE
TONIGHT OVER THE OUTER COASTAL WATERS. WINDS OVER THE INNER
WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL THEY WILL
LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN ADVISORY. SEAS
WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST WINDS...BUT SHOULD
REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS.

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM THIS AFTERNOON TO 3 AM
     PDT SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO FLORENCE
     OR FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     THIS MORNING TO 1 PM PDT THIS AFTERNOON...THEN AGAIN FROM
     9 PM THIS EVENING TO 2 AM PDT SATURDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KOTX 270552
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1052 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.


&&

.DISCUSSION...
Evening forecast update to warm low temperatures a few degrees and
increase cloud cover slightly across the western portion of the
forecast area. Dew point temperatures are running in the low to mid
40s across much of the region. High level cirrus cover will also
continue to develop in the lee of the Cascade Mtns. This will
likely result in less cooling than previously thought with low
temperatures generally only dipping into the upper 30s and 40s for
most locations. I also expected a mention of patchy fog into the
Central Panhandle Mtn valleys and across the valleys of the East
Slopes of the Northern Cascades. /SVH


&&

.AVIATION...
06Z TAFS: High pressure will shift over the region through tonight
into Friday with cirrus clouds continuing to develop in the lee of
the Cascades. Fog is also expected to redevelop tonight across the
mountain valleys. This may impact KSFF and KCOE early Friday
morning with reduced visibility possible, but confidence is low.
An approaching cold front off of the Pacific and increasing mid
level instability will result in convection late in the afternoon
across OR and southeast WA. Thunderstorms will be possible along
the Blue Mtns and into the Central Panhandle Mtns and may impact
the KLWS and KPUW TAF locations. /SVH


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        46  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  45  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        45  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       46  75  49  63  40  63 /   0  10  70  50   0   0
Colville       43  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      43  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        41  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     44  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      48  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 270552
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1052 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.


&&

.DISCUSSION...
Evening forecast update to warm low temperatures a few degrees and
increase cloud cover slightly across the western portion of the
forecast area. Dew point temperatures are running in the low to mid
40s across much of the region. High level cirrus cover will also
continue to develop in the lee of the Cascade Mtns. This will
likely result in less cooling than previously thought with low
temperatures generally only dipping into the upper 30s and 40s for
most locations. I also expected a mention of patchy fog into the
Central Panhandle Mtn valleys and across the valleys of the East
Slopes of the Northern Cascades. /SVH


&&

.AVIATION...
06Z TAFS: High pressure will shift over the region through tonight
into Friday with cirrus clouds continuing to develop in the lee of
the Cascades. Fog is also expected to redevelop tonight across the
mountain valleys. This may impact KSFF and KCOE early Friday
morning with reduced visibility possible, but confidence is low.
An approaching cold front off of the Pacific and increasing mid
level instability will result in convection late in the afternoon
across OR and southeast WA. Thunderstorms will be possible along
the Blue Mtns and into the Central Panhandle Mtns and may impact
the KLWS and KPUW TAF locations. /SVH


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        46  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  45  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        45  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       46  75  49  63  40  63 /   0  10  70  50   0   0
Colville       43  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      43  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        41  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     44  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      48  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 270552
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1052 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.


&&

.DISCUSSION...
Evening forecast update to warm low temperatures a few degrees and
increase cloud cover slightly across the western portion of the
forecast area. Dew point temperatures are running in the low to mid
40s across much of the region. High level cirrus cover will also
continue to develop in the lee of the Cascade Mtns. This will
likely result in less cooling than previously thought with low
temperatures generally only dipping into the upper 30s and 40s for
most locations. I also expected a mention of patchy fog into the
Central Panhandle Mtn valleys and across the valleys of the East
Slopes of the Northern Cascades. /SVH


&&

.AVIATION...
06Z TAFS: High pressure will shift over the region through tonight
into Friday with cirrus clouds continuing to develop in the lee of
the Cascades. Fog is also expected to redevelop tonight across the
mountain valleys. This may impact KSFF and KCOE early Friday
morning with reduced visibility possible, but confidence is low.
An approaching cold front off of the Pacific and increasing mid
level instability will result in convection late in the afternoon
across OR and southeast WA. Thunderstorms will be possible along
the Blue Mtns and into the Central Panhandle Mtns and may impact
the KLWS and KPUW TAF locations. /SVH


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        46  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  45  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        45  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       46  75  49  63  40  63 /   0  10  70  50   0   0
Colville       43  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      43  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        41  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     44  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      48  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 270552
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1052 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.


&&

.DISCUSSION...
Evening forecast update to warm low temperatures a few degrees and
increase cloud cover slightly across the western portion of the
forecast area. Dew point temperatures are running in the low to mid
40s across much of the region. High level cirrus cover will also
continue to develop in the lee of the Cascade Mtns. This will
likely result in less cooling than previously thought with low
temperatures generally only dipping into the upper 30s and 40s for
most locations. I also expected a mention of patchy fog into the
Central Panhandle Mtn valleys and across the valleys of the East
Slopes of the Northern Cascades. /SVH


&&

.AVIATION...
06Z TAFS: High pressure will shift over the region through tonight
into Friday with cirrus clouds continuing to develop in the lee of
the Cascades. Fog is also expected to redevelop tonight across the
mountain valleys. This may impact KSFF and KCOE early Friday
morning with reduced visibility possible, but confidence is low.
An approaching cold front off of the Pacific and increasing mid
level instability will result in convection late in the afternoon
across OR and southeast WA. Thunderstorms will be possible along
the Blue Mtns and into the Central Panhandle Mtns and may impact
the KLWS and KPUW TAF locations. /SVH


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        46  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  45  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        45  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       46  75  49  63  40  63 /   0  10  70  50   0   0
Colville       43  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      43  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        41  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     44  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      48  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KSEW 270446
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
946 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL PREVAIL THROUGH FRIDAY
MORNING. A FAST MOVING LOW PRESSURE SYSTEM WILL IMPACT THE
REGION FRIDAY AFTERNOON AND NIGHT. MOIST WESTERLY FLOW ALOFT
WILL KEEP CONDITIONS SOMEWHAT UNSETTLED THIS WEEKEND.

&&

.SHORT TERM...
AN UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH FRI MORNING.
THE RIDGE WILL SHIFT EAST FRI AFTERNOON...ALLOWING AN UPPER TROF
AND ASSOCIATED COLD OR OCCLUDED FRONT TO APPROACH THE CWA FROM THE
WEST. THE UPPER TROF AND SURFACE FRONT WILL MOVE QUICKLY ACROSS
THE CWA FRI NIGHT.

BY SATURDAY MORNING...THE THREAT OF SHOWERS SHOULD BE MOSTLY
CONFINED TO THE CASCADES. HOWEVER IT LOOKS LIKE A PUGET SOUND
CONVERGENCE ZONE MAY DEVELOP OVER THE NORTH SOUND LATE FRI NIGHT.
IF IT DOES DEVELOP...IT WILL PROBABLY LINGER INTO SATURDAY MORNING

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL THIS WEEKEND. THE
MODELS INDICATED THAT A FRONT WILL STALL JUST TO OUR WEST AND
NORTH. THE LATEST GFS BROUGHT THIS FRONT INLAND ON SUNDAY...
RESULTING IN A DECENT THREAT OF RAIN OVER THE CWA. IN CONTRAST...
THE NAM SIMPLY SAGGED THE FRONT FARTHER SOUTH INTO THE CWA...
RESULTING IN AN INCREASED THREAT OF PRECIP ACROSS THE NORTHWEST
THIRD OF THE CWA. THE CURRENT FORECAST REFLECTED THE NAM SOLUTION.

.LONG TERM FROM THE PREV DISCUSSION...
THE RIDGE WILL GIVE OUT ON MONDAY AND A COLD FRONT WILL REACH THE
AREA LATE MONDAY. THAT FRONT WILL BE FOLLOWED BY A PERIOD OF
FAIRLY ZONAL FLOW AND COLD AIR ALOFT.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...UPPER LEVEL RIDGING OVER THE REGION WILL MAINTAIN DRY
AND STABLE CONDITIONS OVERNIGHT WITH LIGHT WINDS. PATCHY LOW CLOUDS
AND FOG ARE POSSIBLE IN THE SOUTH SOUND OVERNIGHT. WESTERLY FLOW
ALOFT WILL BECOME SOUTHWESTERLY FRIDAY AS THE UPPER LEVEL RIDGE
AXIS SHIFTS EAST OF THE CASCADES. A COLD FRONT WILL APPROACH THE
AREA FROM THE WEST FRIDAY...MOVING ONTO THE COAST DURING THE
AFTERNOON AND INLAND THROUGH THE EVENING.

KSEA...VFR CONDITIONS TONIGHT WITH LIGHT SURFACE WINDS.

&&

.MARINE...WEAK HIGH PRESSURE OVER WESTERN WA TONIGHT WITH LIGHT
WINDS OVER AREA WATERS. A COLD FRONT WILL APPROACH THE COASTAL
WATERS FRIDAY MORNING...MOVING INSHORE LATE IN THE AFTERNOON AND
EVENING. EXPECT INCREASING SOUTHERLY WINDS OVER THE COASTAL WATERS
DURING THE AFTERNOON...THEN OVER PUGET SOUND/HOOD CANAL AND THE
NORTHERN INLAND WATERS DURING THE EVENING...FOLLOWED BY INCREASING
ONSHORE FLOW VIA THE STRAIT FRIDAY NIGHT. SMALL CRAFT ADVISORY WINDS
ARE FORECAST FOR THE COASTAL WATERS DURING THE AFTERNOON AND THE
CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET SOUND AND HOOD CANAL
FRIDAY NIGHT. HIGH PRESSURE WILL REBUILD OVER THE REGION ON SATURDAY
WITH GENERALLY LIGHT WINDS OVER AREA WATERS. A FRONTAL BOUNDARY WILL
STALL OVER SOUTHERN B.C. ON SUNDAY...WITH INCREASING SOUTHWESTERLY
WINDS OVER THE COASTAL WATERS SATURDAY NIGHT AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORIES ARE IN EFFECT FOR MUCH OF THE COASTAL
     WATERS...CENTRAL/EASTERN STRAIT OF JUAN DE FUCA...NORTHERN
     INLAND WATERS...AND PUGET SOUND BEGINNING FRI AFTERNOON.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML




000
FXUS66 KSEW 270446
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
946 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL PREVAIL THROUGH FRIDAY
MORNING. A FAST MOVING LOW PRESSURE SYSTEM WILL IMPACT THE
REGION FRIDAY AFTERNOON AND NIGHT. MOIST WESTERLY FLOW ALOFT
WILL KEEP CONDITIONS SOMEWHAT UNSETTLED THIS WEEKEND.

&&

.SHORT TERM...
AN UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH FRI MORNING.
THE RIDGE WILL SHIFT EAST FRI AFTERNOON...ALLOWING AN UPPER TROF
AND ASSOCIATED COLD OR OCCLUDED FRONT TO APPROACH THE CWA FROM THE
WEST. THE UPPER TROF AND SURFACE FRONT WILL MOVE QUICKLY ACROSS
THE CWA FRI NIGHT.

BY SATURDAY MORNING...THE THREAT OF SHOWERS SHOULD BE MOSTLY
CONFINED TO THE CASCADES. HOWEVER IT LOOKS LIKE A PUGET SOUND
CONVERGENCE ZONE MAY DEVELOP OVER THE NORTH SOUND LATE FRI NIGHT.
IF IT DOES DEVELOP...IT WILL PROBABLY LINGER INTO SATURDAY MORNING

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL THIS WEEKEND. THE
MODELS INDICATED THAT A FRONT WILL STALL JUST TO OUR WEST AND
NORTH. THE LATEST GFS BROUGHT THIS FRONT INLAND ON SUNDAY...
RESULTING IN A DECENT THREAT OF RAIN OVER THE CWA. IN CONTRAST...
THE NAM SIMPLY SAGGED THE FRONT FARTHER SOUTH INTO THE CWA...
RESULTING IN AN INCREASED THREAT OF PRECIP ACROSS THE NORTHWEST
THIRD OF THE CWA. THE CURRENT FORECAST REFLECTED THE NAM SOLUTION.

.LONG TERM FROM THE PREV DISCUSSION...
THE RIDGE WILL GIVE OUT ON MONDAY AND A COLD FRONT WILL REACH THE
AREA LATE MONDAY. THAT FRONT WILL BE FOLLOWED BY A PERIOD OF
FAIRLY ZONAL FLOW AND COLD AIR ALOFT.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...UPPER LEVEL RIDGING OVER THE REGION WILL MAINTAIN DRY
AND STABLE CONDITIONS OVERNIGHT WITH LIGHT WINDS. PATCHY LOW CLOUDS
AND FOG ARE POSSIBLE IN THE SOUTH SOUND OVERNIGHT. WESTERLY FLOW
ALOFT WILL BECOME SOUTHWESTERLY FRIDAY AS THE UPPER LEVEL RIDGE
AXIS SHIFTS EAST OF THE CASCADES. A COLD FRONT WILL APPROACH THE
AREA FROM THE WEST FRIDAY...MOVING ONTO THE COAST DURING THE
AFTERNOON AND INLAND THROUGH THE EVENING.

KSEA...VFR CONDITIONS TONIGHT WITH LIGHT SURFACE WINDS.

&&

.MARINE...WEAK HIGH PRESSURE OVER WESTERN WA TONIGHT WITH LIGHT
WINDS OVER AREA WATERS. A COLD FRONT WILL APPROACH THE COASTAL
WATERS FRIDAY MORNING...MOVING INSHORE LATE IN THE AFTERNOON AND
EVENING. EXPECT INCREASING SOUTHERLY WINDS OVER THE COASTAL WATERS
DURING THE AFTERNOON...THEN OVER PUGET SOUND/HOOD CANAL AND THE
NORTHERN INLAND WATERS DURING THE EVENING...FOLLOWED BY INCREASING
ONSHORE FLOW VIA THE STRAIT FRIDAY NIGHT. SMALL CRAFT ADVISORY WINDS
ARE FORECAST FOR THE COASTAL WATERS DURING THE AFTERNOON AND THE
CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET SOUND AND HOOD CANAL
FRIDAY NIGHT. HIGH PRESSURE WILL REBUILD OVER THE REGION ON SATURDAY
WITH GENERALLY LIGHT WINDS OVER AREA WATERS. A FRONTAL BOUNDARY WILL
STALL OVER SOUTHERN B.C. ON SUNDAY...WITH INCREASING SOUTHWESTERLY
WINDS OVER THE COASTAL WATERS SATURDAY NIGHT AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORIES ARE IN EFFECT FOR MUCH OF THE COASTAL
     WATERS...CENTRAL/EASTERN STRAIT OF JUAN DE FUCA...NORTHERN
     INLAND WATERS...AND PUGET SOUND BEGINNING FRI AFTERNOON.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





000
FXUS66 KSEW 270446
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
946 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL PREVAIL THROUGH FRIDAY
MORNING. A FAST MOVING LOW PRESSURE SYSTEM WILL IMPACT THE
REGION FRIDAY AFTERNOON AND NIGHT. MOIST WESTERLY FLOW ALOFT
WILL KEEP CONDITIONS SOMEWHAT UNSETTLED THIS WEEKEND.

&&

.SHORT TERM...
AN UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH FRI MORNING.
THE RIDGE WILL SHIFT EAST FRI AFTERNOON...ALLOWING AN UPPER TROF
AND ASSOCIATED COLD OR OCCLUDED FRONT TO APPROACH THE CWA FROM THE
WEST. THE UPPER TROF AND SURFACE FRONT WILL MOVE QUICKLY ACROSS
THE CWA FRI NIGHT.

BY SATURDAY MORNING...THE THREAT OF SHOWERS SHOULD BE MOSTLY
CONFINED TO THE CASCADES. HOWEVER IT LOOKS LIKE A PUGET SOUND
CONVERGENCE ZONE MAY DEVELOP OVER THE NORTH SOUND LATE FRI NIGHT.
IF IT DOES DEVELOP...IT WILL PROBABLY LINGER INTO SATURDAY MORNING

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL THIS WEEKEND. THE
MODELS INDICATED THAT A FRONT WILL STALL JUST TO OUR WEST AND
NORTH. THE LATEST GFS BROUGHT THIS FRONT INLAND ON SUNDAY...
RESULTING IN A DECENT THREAT OF RAIN OVER THE CWA. IN CONTRAST...
THE NAM SIMPLY SAGGED THE FRONT FARTHER SOUTH INTO THE CWA...
RESULTING IN AN INCREASED THREAT OF PRECIP ACROSS THE NORTHWEST
THIRD OF THE CWA. THE CURRENT FORECAST REFLECTED THE NAM SOLUTION.

.LONG TERM FROM THE PREV DISCUSSION...
THE RIDGE WILL GIVE OUT ON MONDAY AND A COLD FRONT WILL REACH THE
AREA LATE MONDAY. THAT FRONT WILL BE FOLLOWED BY A PERIOD OF
FAIRLY ZONAL FLOW AND COLD AIR ALOFT.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...UPPER LEVEL RIDGING OVER THE REGION WILL MAINTAIN DRY
AND STABLE CONDITIONS OVERNIGHT WITH LIGHT WINDS. PATCHY LOW CLOUDS
AND FOG ARE POSSIBLE IN THE SOUTH SOUND OVERNIGHT. WESTERLY FLOW
ALOFT WILL BECOME SOUTHWESTERLY FRIDAY AS THE UPPER LEVEL RIDGE
AXIS SHIFTS EAST OF THE CASCADES. A COLD FRONT WILL APPROACH THE
AREA FROM THE WEST FRIDAY...MOVING ONTO THE COAST DURING THE
AFTERNOON AND INLAND THROUGH THE EVENING.

KSEA...VFR CONDITIONS TONIGHT WITH LIGHT SURFACE WINDS.

&&

.MARINE...WEAK HIGH PRESSURE OVER WESTERN WA TONIGHT WITH LIGHT
WINDS OVER AREA WATERS. A COLD FRONT WILL APPROACH THE COASTAL
WATERS FRIDAY MORNING...MOVING INSHORE LATE IN THE AFTERNOON AND
EVENING. EXPECT INCREASING SOUTHERLY WINDS OVER THE COASTAL WATERS
DURING THE AFTERNOON...THEN OVER PUGET SOUND/HOOD CANAL AND THE
NORTHERN INLAND WATERS DURING THE EVENING...FOLLOWED BY INCREASING
ONSHORE FLOW VIA THE STRAIT FRIDAY NIGHT. SMALL CRAFT ADVISORY WINDS
ARE FORECAST FOR THE COASTAL WATERS DURING THE AFTERNOON AND THE
CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET SOUND AND HOOD CANAL
FRIDAY NIGHT. HIGH PRESSURE WILL REBUILD OVER THE REGION ON SATURDAY
WITH GENERALLY LIGHT WINDS OVER AREA WATERS. A FRONTAL BOUNDARY WILL
STALL OVER SOUTHERN B.C. ON SUNDAY...WITH INCREASING SOUTHWESTERLY
WINDS OVER THE COASTAL WATERS SATURDAY NIGHT AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORIES ARE IN EFFECT FOR MUCH OF THE COASTAL
     WATERS...CENTRAL/EASTERN STRAIT OF JUAN DE FUCA...NORTHERN
     INLAND WATERS...AND PUGET SOUND BEGINNING FRI AFTERNOON.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML




000
FXUS66 KSEW 270446
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
946 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL PREVAIL THROUGH FRIDAY
MORNING. A FAST MOVING LOW PRESSURE SYSTEM WILL IMPACT THE
REGION FRIDAY AFTERNOON AND NIGHT. MOIST WESTERLY FLOW ALOFT
WILL KEEP CONDITIONS SOMEWHAT UNSETTLED THIS WEEKEND.

&&

.SHORT TERM...
AN UPPER RIDGE WILL REMAIN OVER THE REGION THROUGH FRI MORNING.
THE RIDGE WILL SHIFT EAST FRI AFTERNOON...ALLOWING AN UPPER TROF
AND ASSOCIATED COLD OR OCCLUDED FRONT TO APPROACH THE CWA FROM THE
WEST. THE UPPER TROF AND SURFACE FRONT WILL MOVE QUICKLY ACROSS
THE CWA FRI NIGHT.

BY SATURDAY MORNING...THE THREAT OF SHOWERS SHOULD BE MOSTLY
CONFINED TO THE CASCADES. HOWEVER IT LOOKS LIKE A PUGET SOUND
CONVERGENCE ZONE MAY DEVELOP OVER THE NORTH SOUND LATE FRI NIGHT.
IF IT DOES DEVELOP...IT WILL PROBABLY LINGER INTO SATURDAY MORNING

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL THIS WEEKEND. THE
MODELS INDICATED THAT A FRONT WILL STALL JUST TO OUR WEST AND
NORTH. THE LATEST GFS BROUGHT THIS FRONT INLAND ON SUNDAY...
RESULTING IN A DECENT THREAT OF RAIN OVER THE CWA. IN CONTRAST...
THE NAM SIMPLY SAGGED THE FRONT FARTHER SOUTH INTO THE CWA...
RESULTING IN AN INCREASED THREAT OF PRECIP ACROSS THE NORTHWEST
THIRD OF THE CWA. THE CURRENT FORECAST REFLECTED THE NAM SOLUTION.

.LONG TERM FROM THE PREV DISCUSSION...
THE RIDGE WILL GIVE OUT ON MONDAY AND A COLD FRONT WILL REACH THE
AREA LATE MONDAY. THAT FRONT WILL BE FOLLOWED BY A PERIOD OF
FAIRLY ZONAL FLOW AND COLD AIR ALOFT.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...UPPER LEVEL RIDGING OVER THE REGION WILL MAINTAIN DRY
AND STABLE CONDITIONS OVERNIGHT WITH LIGHT WINDS. PATCHY LOW CLOUDS
AND FOG ARE POSSIBLE IN THE SOUTH SOUND OVERNIGHT. WESTERLY FLOW
ALOFT WILL BECOME SOUTHWESTERLY FRIDAY AS THE UPPER LEVEL RIDGE
AXIS SHIFTS EAST OF THE CASCADES. A COLD FRONT WILL APPROACH THE
AREA FROM THE WEST FRIDAY...MOVING ONTO THE COAST DURING THE
AFTERNOON AND INLAND THROUGH THE EVENING.

KSEA...VFR CONDITIONS TONIGHT WITH LIGHT SURFACE WINDS.

&&

.MARINE...WEAK HIGH PRESSURE OVER WESTERN WA TONIGHT WITH LIGHT
WINDS OVER AREA WATERS. A COLD FRONT WILL APPROACH THE COASTAL
WATERS FRIDAY MORNING...MOVING INSHORE LATE IN THE AFTERNOON AND
EVENING. EXPECT INCREASING SOUTHERLY WINDS OVER THE COASTAL WATERS
DURING THE AFTERNOON...THEN OVER PUGET SOUND/HOOD CANAL AND THE
NORTHERN INLAND WATERS DURING THE EVENING...FOLLOWED BY INCREASING
ONSHORE FLOW VIA THE STRAIT FRIDAY NIGHT. SMALL CRAFT ADVISORY WINDS
ARE FORECAST FOR THE COASTAL WATERS DURING THE AFTERNOON AND THE
CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET SOUND AND HOOD CANAL
FRIDAY NIGHT. HIGH PRESSURE WILL REBUILD OVER THE REGION ON SATURDAY
WITH GENERALLY LIGHT WINDS OVER AREA WATERS. A FRONTAL BOUNDARY WILL
STALL OVER SOUTHERN B.C. ON SUNDAY...WITH INCREASING SOUTHWESTERLY
WINDS OVER THE COASTAL WATERS SATURDAY NIGHT AND SUNDAY.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORIES ARE IN EFFECT FOR MUCH OF THE COASTAL
     WATERS...CENTRAL/EASTERN STRAIT OF JUAN DE FUCA...NORTHERN
     INLAND WATERS...AND PUGET SOUND BEGINNING FRI AFTERNOON.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





000
FXUS66 KPQR 270354
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...ONLY CHANGE WAS TO ADD PATCHY FOG BACK TO THE COAST AND
COASTAL VALLEYS TONIGHT AS WEAK ONSHORE FLOW IS KEEPING DEW POINTS
UP AND MUCH CLOSER TO THE FALLING TEMPERATURES. OTHERWISE...THE
FORECAST REMAINS GENERALLY ON TRACK FRO THE REST OF TONIGHT AND
TOMORROW. THUNDERSTORMS STILL SEEM PLAUSIBLE ALONG THE CASCADE CREST
TOMORROW AFTERNOON AS INSTABILITY INCREASES AHEAD OF THE APPROACHING
COLD FRONT. IT`S NOT A SLAM DUNK SCENARIO AND FEEL THAT THE 80
PERCENT CHANCE OF IT NOT HAPPENING MIGHT BE A BETTER WAY TO SELL IT
GIVEN INCREASING CLOUDS TO LIMIT SURFACE HEATING PLUS WEAK MID-LEVEL
CAPPING. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 245 PM PDT THU MAR 26 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING
WELL INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID
SUNSHINE...EXPECT MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH
MOSTLY CLEAR SKIES EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO
DEVELOP TONIGHT...BUT COVERAGE SHOULD BE A BIT LESS THAN THIS
MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...WITH HIGH PRESSURE...CLEAR SKIES...LIGHT WINDS...AND A
MOIST LOWER ATMOSPHERE...CONDITIONS ARE ONCE AGAIN RIPE FOR FOG
DEVELOPMENT. AS SUCH...EXPECT VFR CONDITIONS TO GIVE WAY TO
IFR/LIFR CIGS AND VSBYS AROUND MIDNIGHT. ONCE THE FOG
DEVELOPS...EXPECT IT TO REMAIN IN PLACE INTO TOMORROW MORNING
BEFORE LIFTING BY LATE MORNING. CONDITIONS WILL BRIEFLY RETURN TO
VFR TOMORROW AFTERNOON...BUT SLOWLY DETERIORATE TOWARDS MVFR BY
TOMORROW EVENING AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS AFTER MIDNIGHT AND REMAIN IN PLACE THROUGH TOMORROW
MORNING. CONDITIONS IMPROVE BACK TO VFR TOMORROW AFTERNOON...BUT
SHOULD SLOWLY DETERIORATE TOWARDS MVFR TOMORROW EVENING/NIGHT AS
A COLD FRONT MOVES ACROSS THE REGION. /64

&&

.MARINE...CALM WEATHER OVER THE WATERS WILL CONTINUE INTO TOMORROW
MORNING AS WEAK HIGH PRESSURE REMAINS OVER THE PACIFIC
NORTHWEST...WITH WINDS TO 10 KT AND SEAS HOVERING BETWEEN 7 AND 8
FT. A COLD FRONT WILL PUSH INTO THE WATERS TOMORROW AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH. WITH GUST TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT DECIDED
TO ISSUE A SMALL CRAFT ADVISORY FOR TOMORROW AFTERNOON. WINDS OVER
THE INNER WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL
THEY WILL LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN
ADVISORY. SEAS WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST
WINDS...BUT SHOULD REMAIN BELOW 10 FT. /64

REMAINDER OF PREVIOUS DISCUSSION FOLLOWS...WEAK HIGH PRES RETURNS TO
THE WATERS OVER THE WEEKEND. ANOTHER FRONT IS EXPECTED TO MOVE
THROUGH ON MON. THIS FRONT LOOKS A LITTLE MORE IMPRESSIVE AND SHOULD
BRING A SOLID ROUND OF SMALL CRAFT ADVISORY WINDS...WITH A SMALL
CHANCE OF GALES. A MORE PROGRESSIVE WEATHER PATTERN FOR THE FIRST
HALF OF NEXT WEEK. EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN
OR MON AND REMAIN ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM FRIDAY TO 3 AM PDT
     SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD
     OR FROM 10 TO 60 NM-WATERS FROM CASCADE HEAD TO FLORENCE OR
     FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     TO 1 PM PDT FRIDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 270354
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...ONLY CHANGE WAS TO ADD PATCHY FOG BACK TO THE COAST AND
COASTAL VALLEYS TONIGHT AS WEAK ONSHORE FLOW IS KEEPING DEW POINTS
UP AND MUCH CLOSER TO THE FALLING TEMPERATURES. OTHERWISE...THE
FORECAST REMAINS GENERALLY ON TRACK FRO THE REST OF TONIGHT AND
TOMORROW. THUNDERSTORMS STILL SEEM PLAUSIBLE ALONG THE CASCADE CREST
TOMORROW AFTERNOON AS INSTABILITY INCREASES AHEAD OF THE APPROACHING
COLD FRONT. IT`S NOT A SLAM DUNK SCENARIO AND FEEL THAT THE 80
PERCENT CHANCE OF IT NOT HAPPENING MIGHT BE A BETTER WAY TO SELL IT
GIVEN INCREASING CLOUDS TO LIMIT SURFACE HEATING PLUS WEAK MID-LEVEL
CAPPING. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 245 PM PDT THU MAR 26 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING
WELL INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID
SUNSHINE...EXPECT MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH
MOSTLY CLEAR SKIES EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO
DEVELOP TONIGHT...BUT COVERAGE SHOULD BE A BIT LESS THAN THIS
MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...WITH HIGH PRESSURE...CLEAR SKIES...LIGHT WINDS...AND A
MOIST LOWER ATMOSPHERE...CONDITIONS ARE ONCE AGAIN RIPE FOR FOG
DEVELOPMENT. AS SUCH...EXPECT VFR CONDITIONS TO GIVE WAY TO
IFR/LIFR CIGS AND VSBYS AROUND MIDNIGHT. ONCE THE FOG
DEVELOPS...EXPECT IT TO REMAIN IN PLACE INTO TOMORROW MORNING
BEFORE LIFTING BY LATE MORNING. CONDITIONS WILL BRIEFLY RETURN TO
VFR TOMORROW AFTERNOON...BUT SLOWLY DETERIORATE TOWARDS MVFR BY
TOMORROW EVENING AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS AFTER MIDNIGHT AND REMAIN IN PLACE THROUGH TOMORROW
MORNING. CONDITIONS IMPROVE BACK TO VFR TOMORROW AFTERNOON...BUT
SHOULD SLOWLY DETERIORATE TOWARDS MVFR TOMORROW EVENING/NIGHT AS
A COLD FRONT MOVES ACROSS THE REGION. /64

&&

.MARINE...CALM WEATHER OVER THE WATERS WILL CONTINUE INTO TOMORROW
MORNING AS WEAK HIGH PRESSURE REMAINS OVER THE PACIFIC
NORTHWEST...WITH WINDS TO 10 KT AND SEAS HOVERING BETWEEN 7 AND 8
FT. A COLD FRONT WILL PUSH INTO THE WATERS TOMORROW AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH. WITH GUST TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT DECIDED
TO ISSUE A SMALL CRAFT ADVISORY FOR TOMORROW AFTERNOON. WINDS OVER
THE INNER WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL
THEY WILL LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN
ADVISORY. SEAS WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST
WINDS...BUT SHOULD REMAIN BELOW 10 FT. /64

REMAINDER OF PREVIOUS DISCUSSION FOLLOWS...WEAK HIGH PRES RETURNS TO
THE WATERS OVER THE WEEKEND. ANOTHER FRONT IS EXPECTED TO MOVE
THROUGH ON MON. THIS FRONT LOOKS A LITTLE MORE IMPRESSIVE AND SHOULD
BRING A SOLID ROUND OF SMALL CRAFT ADVISORY WINDS...WITH A SMALL
CHANCE OF GALES. A MORE PROGRESSIVE WEATHER PATTERN FOR THE FIRST
HALF OF NEXT WEEK. EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN
OR MON AND REMAIN ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM FRIDAY TO 3 AM PDT
     SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD
     OR FROM 10 TO 60 NM-WATERS FROM CASCADE HEAD TO FLORENCE OR
     FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     TO 1 PM PDT FRIDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 270354
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...ONLY CHANGE WAS TO ADD PATCHY FOG BACK TO THE COAST AND
COASTAL VALLEYS TONIGHT AS WEAK ONSHORE FLOW IS KEEPING DEW POINTS
UP AND MUCH CLOSER TO THE FALLING TEMPERATURES. OTHERWISE...THE
FORECAST REMAINS GENERALLY ON TRACK FRO THE REST OF TONIGHT AND
TOMORROW. THUNDERSTORMS STILL SEEM PLAUSIBLE ALONG THE CASCADE CREST
TOMORROW AFTERNOON AS INSTABILITY INCREASES AHEAD OF THE APPROACHING
COLD FRONT. IT`S NOT A SLAM DUNK SCENARIO AND FEEL THAT THE 80
PERCENT CHANCE OF IT NOT HAPPENING MIGHT BE A BETTER WAY TO SELL IT
GIVEN INCREASING CLOUDS TO LIMIT SURFACE HEATING PLUS WEAK MID-LEVEL
CAPPING. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 245 PM PDT THU MAR 26 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING
WELL INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID
SUNSHINE...EXPECT MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH
MOSTLY CLEAR SKIES EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO
DEVELOP TONIGHT...BUT COVERAGE SHOULD BE A BIT LESS THAN THIS
MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...WITH HIGH PRESSURE...CLEAR SKIES...LIGHT WINDS...AND A
MOIST LOWER ATMOSPHERE...CONDITIONS ARE ONCE AGAIN RIPE FOR FOG
DEVELOPMENT. AS SUCH...EXPECT VFR CONDITIONS TO GIVE WAY TO
IFR/LIFR CIGS AND VSBYS AROUND MIDNIGHT. ONCE THE FOG
DEVELOPS...EXPECT IT TO REMAIN IN PLACE INTO TOMORROW MORNING
BEFORE LIFTING BY LATE MORNING. CONDITIONS WILL BRIEFLY RETURN TO
VFR TOMORROW AFTERNOON...BUT SLOWLY DETERIORATE TOWARDS MVFR BY
TOMORROW EVENING AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS AFTER MIDNIGHT AND REMAIN IN PLACE THROUGH TOMORROW
MORNING. CONDITIONS IMPROVE BACK TO VFR TOMORROW AFTERNOON...BUT
SHOULD SLOWLY DETERIORATE TOWARDS MVFR TOMORROW EVENING/NIGHT AS
A COLD FRONT MOVES ACROSS THE REGION. /64

&&

.MARINE...CALM WEATHER OVER THE WATERS WILL CONTINUE INTO TOMORROW
MORNING AS WEAK HIGH PRESSURE REMAINS OVER THE PACIFIC
NORTHWEST...WITH WINDS TO 10 KT AND SEAS HOVERING BETWEEN 7 AND 8
FT. A COLD FRONT WILL PUSH INTO THE WATERS TOMORROW AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH. WITH GUST TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT DECIDED
TO ISSUE A SMALL CRAFT ADVISORY FOR TOMORROW AFTERNOON. WINDS OVER
THE INNER WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL
THEY WILL LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN
ADVISORY. SEAS WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST
WINDS...BUT SHOULD REMAIN BELOW 10 FT. /64

REMAINDER OF PREVIOUS DISCUSSION FOLLOWS...WEAK HIGH PRES RETURNS TO
THE WATERS OVER THE WEEKEND. ANOTHER FRONT IS EXPECTED TO MOVE
THROUGH ON MON. THIS FRONT LOOKS A LITTLE MORE IMPRESSIVE AND SHOULD
BRING A SOLID ROUND OF SMALL CRAFT ADVISORY WINDS...WITH A SMALL
CHANCE OF GALES. A MORE PROGRESSIVE WEATHER PATTERN FOR THE FIRST
HALF OF NEXT WEEK. EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN
OR MON AND REMAIN ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM FRIDAY TO 3 AM PDT
     SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD
     OR FROM 10 TO 60 NM-WATERS FROM CASCADE HEAD TO FLORENCE OR
     FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     TO 1 PM PDT FRIDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 270354
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...ONLY CHANGE WAS TO ADD PATCHY FOG BACK TO THE COAST AND
COASTAL VALLEYS TONIGHT AS WEAK ONSHORE FLOW IS KEEPING DEW POINTS
UP AND MUCH CLOSER TO THE FALLING TEMPERATURES. OTHERWISE...THE
FORECAST REMAINS GENERALLY ON TRACK FRO THE REST OF TONIGHT AND
TOMORROW. THUNDERSTORMS STILL SEEM PLAUSIBLE ALONG THE CASCADE CREST
TOMORROW AFTERNOON AS INSTABILITY INCREASES AHEAD OF THE APPROACHING
COLD FRONT. IT`S NOT A SLAM DUNK SCENARIO AND FEEL THAT THE 80
PERCENT CHANCE OF IT NOT HAPPENING MIGHT BE A BETTER WAY TO SELL IT
GIVEN INCREASING CLOUDS TO LIMIT SURFACE HEATING PLUS WEAK MID-LEVEL
CAPPING. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 245 PM PDT THU MAR 26 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING
WELL INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID
SUNSHINE...EXPECT MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH
MOSTLY CLEAR SKIES EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO
DEVELOP TONIGHT...BUT COVERAGE SHOULD BE A BIT LESS THAN THIS
MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...WITH HIGH PRESSURE...CLEAR SKIES...LIGHT WINDS...AND A
MOIST LOWER ATMOSPHERE...CONDITIONS ARE ONCE AGAIN RIPE FOR FOG
DEVELOPMENT. AS SUCH...EXPECT VFR CONDITIONS TO GIVE WAY TO
IFR/LIFR CIGS AND VSBYS AROUND MIDNIGHT. ONCE THE FOG
DEVELOPS...EXPECT IT TO REMAIN IN PLACE INTO TOMORROW MORNING
BEFORE LIFTING BY LATE MORNING. CONDITIONS WILL BRIEFLY RETURN TO
VFR TOMORROW AFTERNOON...BUT SLOWLY DETERIORATE TOWARDS MVFR BY
TOMORROW EVENING AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS AFTER MIDNIGHT AND REMAIN IN PLACE THROUGH TOMORROW
MORNING. CONDITIONS IMPROVE BACK TO VFR TOMORROW AFTERNOON...BUT
SHOULD SLOWLY DETERIORATE TOWARDS MVFR TOMORROW EVENING/NIGHT AS
A COLD FRONT MOVES ACROSS THE REGION. /64

&&

.MARINE...CALM WEATHER OVER THE WATERS WILL CONTINUE INTO TOMORROW
MORNING AS WEAK HIGH PRESSURE REMAINS OVER THE PACIFIC
NORTHWEST...WITH WINDS TO 10 KT AND SEAS HOVERING BETWEEN 7 AND 8
FT. A COLD FRONT WILL PUSH INTO THE WATERS TOMORROW AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH. WITH GUST TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT DECIDED
TO ISSUE A SMALL CRAFT ADVISORY FOR TOMORROW AFTERNOON. WINDS OVER
THE INNER WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL
THEY WILL LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN
ADVISORY. SEAS WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST
WINDS...BUT SHOULD REMAIN BELOW 10 FT. /64

REMAINDER OF PREVIOUS DISCUSSION FOLLOWS...WEAK HIGH PRES RETURNS TO
THE WATERS OVER THE WEEKEND. ANOTHER FRONT IS EXPECTED TO MOVE
THROUGH ON MON. THIS FRONT LOOKS A LITTLE MORE IMPRESSIVE AND SHOULD
BRING A SOLID ROUND OF SMALL CRAFT ADVISORY WINDS...WITH A SMALL
CHANCE OF GALES. A MORE PROGRESSIVE WEATHER PATTERN FOR THE FIRST
HALF OF NEXT WEEK. EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN
OR MON AND REMAIN ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM FRIDAY TO 3 AM PDT
     SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD
     OR FROM 10 TO 60 NM-WATERS FROM CASCADE HEAD TO FLORENCE OR
     FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     TO 1 PM PDT FRIDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 270354
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...ONLY CHANGE WAS TO ADD PATCHY FOG BACK TO THE COAST AND
COASTAL VALLEYS TONIGHT AS WEAK ONSHORE FLOW IS KEEPING DEW POINTS
UP AND MUCH CLOSER TO THE FALLING TEMPERATURES. OTHERWISE...THE
FORECAST REMAINS GENERALLY ON TRACK FRO THE REST OF TONIGHT AND
TOMORROW. THUNDERSTORMS STILL SEEM PLAUSIBLE ALONG THE CASCADE CREST
TOMORROW AFTERNOON AS INSTABILITY INCREASES AHEAD OF THE APPROACHING
COLD FRONT. IT`S NOT A SLAM DUNK SCENARIO AND FEEL THAT THE 80
PERCENT CHANCE OF IT NOT HAPPENING MIGHT BE A BETTER WAY TO SELL IT
GIVEN INCREASING CLOUDS TO LIMIT SURFACE HEATING PLUS WEAK MID-LEVEL
CAPPING. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 245 PM PDT THU MAR 26 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING
WELL INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID
SUNSHINE...EXPECT MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH
MOSTLY CLEAR SKIES EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO
DEVELOP TONIGHT...BUT COVERAGE SHOULD BE A BIT LESS THAN THIS
MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...WITH HIGH PRESSURE...CLEAR SKIES...LIGHT WINDS...AND A
MOIST LOWER ATMOSPHERE...CONDITIONS ARE ONCE AGAIN RIPE FOR FOG
DEVELOPMENT. AS SUCH...EXPECT VFR CONDITIONS TO GIVE WAY TO
IFR/LIFR CIGS AND VSBYS AROUND MIDNIGHT. ONCE THE FOG
DEVELOPS...EXPECT IT TO REMAIN IN PLACE INTO TOMORROW MORNING
BEFORE LIFTING BY LATE MORNING. CONDITIONS WILL BRIEFLY RETURN TO
VFR TOMORROW AFTERNOON...BUT SLOWLY DETERIORATE TOWARDS MVFR BY
TOMORROW EVENING AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS AFTER MIDNIGHT AND REMAIN IN PLACE THROUGH TOMORROW
MORNING. CONDITIONS IMPROVE BACK TO VFR TOMORROW AFTERNOON...BUT
SHOULD SLOWLY DETERIORATE TOWARDS MVFR TOMORROW EVENING/NIGHT AS
A COLD FRONT MOVES ACROSS THE REGION. /64

&&

.MARINE...CALM WEATHER OVER THE WATERS WILL CONTINUE INTO TOMORROW
MORNING AS WEAK HIGH PRESSURE REMAINS OVER THE PACIFIC
NORTHWEST...WITH WINDS TO 10 KT AND SEAS HOVERING BETWEEN 7 AND 8
FT. A COLD FRONT WILL PUSH INTO THE WATERS TOMORROW AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH. WITH GUST TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT DECIDED
TO ISSUE A SMALL CRAFT ADVISORY FOR TOMORROW AFTERNOON. WINDS OVER
THE INNER WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL
THEY WILL LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN
ADVISORY. SEAS WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST
WINDS...BUT SHOULD REMAIN BELOW 10 FT. /64

REMAINDER OF PREVIOUS DISCUSSION FOLLOWS...WEAK HIGH PRES RETURNS TO
THE WATERS OVER THE WEEKEND. ANOTHER FRONT IS EXPECTED TO MOVE
THROUGH ON MON. THIS FRONT LOOKS A LITTLE MORE IMPRESSIVE AND SHOULD
BRING A SOLID ROUND OF SMALL CRAFT ADVISORY WINDS...WITH A SMALL
CHANCE OF GALES. A MORE PROGRESSIVE WEATHER PATTERN FOR THE FIRST
HALF OF NEXT WEEK. EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN
OR MON AND REMAIN ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM FRIDAY TO 3 AM PDT
     SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD
     OR FROM 10 TO 60 NM-WATERS FROM CASCADE HEAD TO FLORENCE OR
     FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     TO 1 PM PDT FRIDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 270354
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
854 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA LATE FRIDAY
WITH POTENTIAL FOR THUNDERSTORMS NEAR THE CASCADE CREST. SHOWERS
DIMINISH WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOKS
TO RETURN LATE SATURDAY THROUGH EARLY MONDAY. ANOTHER FRONT BRINGS
MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND
CONTINUES INTO THE MIDDLE OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP
BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...ONLY CHANGE WAS TO ADD PATCHY FOG BACK TO THE COAST AND
COASTAL VALLEYS TONIGHT AS WEAK ONSHORE FLOW IS KEEPING DEW POINTS
UP AND MUCH CLOSER TO THE FALLING TEMPERATURES. OTHERWISE...THE
FORECAST REMAINS GENERALLY ON TRACK FRO THE REST OF TONIGHT AND
TOMORROW. THUNDERSTORMS STILL SEEM PLAUSIBLE ALONG THE CASCADE CREST
TOMORROW AFTERNOON AS INSTABILITY INCREASES AHEAD OF THE APPROACHING
COLD FRONT. IT`S NOT A SLAM DUNK SCENARIO AND FEEL THAT THE 80
PERCENT CHANCE OF IT NOT HAPPENING MIGHT BE A BETTER WAY TO SELL IT
GIVEN INCREASING CLOUDS TO LIMIT SURFACE HEATING PLUS WEAK MID-LEVEL
CAPPING. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 245 PM PDT THU MAR 26 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING
WELL INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID
SUNSHINE...EXPECT MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH
MOSTLY CLEAR SKIES EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO
DEVELOP TONIGHT...BUT COVERAGE SHOULD BE A BIT LESS THAN THIS
MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...WITH HIGH PRESSURE...CLEAR SKIES...LIGHT WINDS...AND A
MOIST LOWER ATMOSPHERE...CONDITIONS ARE ONCE AGAIN RIPE FOR FOG
DEVELOPMENT. AS SUCH...EXPECT VFR CONDITIONS TO GIVE WAY TO
IFR/LIFR CIGS AND VSBYS AROUND MIDNIGHT. ONCE THE FOG
DEVELOPS...EXPECT IT TO REMAIN IN PLACE INTO TOMORROW MORNING
BEFORE LIFTING BY LATE MORNING. CONDITIONS WILL BRIEFLY RETURN TO
VFR TOMORROW AFTERNOON...BUT SLOWLY DETERIORATE TOWARDS MVFR BY
TOMORROW EVENING AS A COLD FRONT MOVES ACROSS THE REGION.

KPDX AND APPROACHES...VFR CONDITIONS WILL GIVE WAY TO IFR/LIFR
CIGS AND VSBYS AFTER MIDNIGHT AND REMAIN IN PLACE THROUGH TOMORROW
MORNING. CONDITIONS IMPROVE BACK TO VFR TOMORROW AFTERNOON...BUT
SHOULD SLOWLY DETERIORATE TOWARDS MVFR TOMORROW EVENING/NIGHT AS
A COLD FRONT MOVES ACROSS THE REGION. /64

&&

.MARINE...CALM WEATHER OVER THE WATERS WILL CONTINUE INTO TOMORROW
MORNING AS WEAK HIGH PRESSURE REMAINS OVER THE PACIFIC
NORTHWEST...WITH WINDS TO 10 KT AND SEAS HOVERING BETWEEN 7 AND 8
FT. A COLD FRONT WILL PUSH INTO THE WATERS TOMORROW AFTERNOON
ALLOWING WINDS TO INCREASE OUT OF THE SOUTH. WITH GUST TO 25 KT
EXPECTED TO DEVELOP OVER THE OUTER WATERS AHEAD OF THE FRONT DECIDED
TO ISSUE A SMALL CRAFT ADVISORY FOR TOMORROW AFTERNOON. WINDS OVER
THE INNER WATERS MAY BRIEFLY CLIMB ABOVE 21 KT...BUT DO NOT FEEL
THEY WILL LAST LONG ENOUGH OR BE WIDESPREAD TO WARRANT AN
ADVISORY. SEAS WILL LIKELY CLIMB A LITTLE WITH THE STRONGEST
WINDS...BUT SHOULD REMAIN BELOW 10 FT. /64

REMAINDER OF PREVIOUS DISCUSSION FOLLOWS...WEAK HIGH PRES RETURNS TO
THE WATERS OVER THE WEEKEND. ANOTHER FRONT IS EXPECTED TO MOVE
THROUGH ON MON. THIS FRONT LOOKS A LITTLE MORE IMPRESSIVE AND SHOULD
BRING A SOLID ROUND OF SMALL CRAFT ADVISORY WINDS...WITH A SMALL
CHANCE OF GALES. A MORE PROGRESSIVE WEATHER PATTERN FOR THE FIRST
HALF OF NEXT WEEK. EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN
OR MON AND REMAIN ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR WINDS FROM 1 PM FRIDAY TO 3 AM PDT
     SATURDAY FOR WATERS FROM CAPE SHOALWATER WA TO CASCADE HEAD
     OR FROM 10 TO 60 NM-WATERS FROM CASCADE HEAD TO FLORENCE OR
     FROM 10 TO 60 NM.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 9 AM
     TO 1 PM PDT FRIDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KOTX 270000
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
500 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.

&&

.DISCUSSION...
Tonight and Fri: Pcpn and thunder chances, as well as the potential
for record high temps Fri are the primary areas of focus. Quickly
amplifying upper ridge over the Pac Nw overnight will help to
produce clearing skies, the result of which will be another chance
of valley fog for the nrn valleys of Wa and the Id Panhandle.
This is contingent upon the current mid and high cloud ceilings
over these same areas (which has been very slow to clear out),
actually does clear out later tonight. As a cold front approaches
the coast tonight, a plume of convective instability (mainly in
the 700-500mb lyr) moves NE across SE Wa between 12z and 18z on
the majority of model guidance, with both the GFS and SREF showing
a bullseye of mid cloud ceilings tracking NE. Though no model
guidance generates pcpn, this is a typical nocturnal convective
pcpn pattern. We kept it dry... but we`ll keep an eye on it. For
Fri...no big changes to the fcst as the low- level thermal ridge
surges N into Ern wa ahead of the cold front. Thermodynamic
profiles still support record or near-record high temps for a
number of towns.

...See our latest wx story on our home page to see which towns may
be breaking records...

By Fri afternoon, the sfc may remain capped as far as thunder
chances go for SE Wa until late afternoon. It`s likely we`ll see
the first showers develop over NE Oregon then develop/advect NE
into SE Wa and the cntrl Id Panhandle thereafter. Confidence is
not great as far as the timing and areal extent, with only about
half of the models wanting to generate convective pcpn coinciding with
the main axis of sfc-based instability.bz

Friday night through Thursday...The longwave pattern remains
dynamic. It starts out with ridge with axis placement to the east
of the Pacific Northwest which allows for approach of weather
systems from the southwest and west starting Friday night. Models
have been consistent in not only depicting such a system to move
through Friday night through Saturday they also hint at convection
firing up ahead of it, possibly in the form of thunderstorms over
Southeast Washington near the Blue Mountains and southern portions
of the Northern Idaho Panhandle. A moisture rich baroclinic band
juxtaposed and positively slanted between an area of low pressure
over the Gulf of Alaska and weak ridging over the Inland Northwest
remains in place afterward for Saturday night into Monday. This
fairly persistent positioning of the baroclinic band allow for low
pops for light rain lingering along a thin area in the lee of the
North Cascades and across the Southern British Columbia border
without much extension southward. This would leave locations
further to the south with dry conditions and above normal
temperatures. Monday night a cold front runs over and flattens the
ridge allowing colder, wet, windy and unsettled weather to return.
What remains in the wake of this Monday night/Tuesday cold front
passage is a general weak trof and/or flat progressive zonal flow
Tuesday night through Thursday. Such a general trof would favor
continued cool temperatures and off an on mainly diurnally driven
showers. /Pelatti

&&

.AVIATION...
00Z TAFS: High pressure will continue to build in over the region
tonight. This will result in a decreasing trend in low to mid
level cloud cover, but some high level cirrus is expected to hang
around. There is the potential for fog to redevelop late tonight
into the early morning hours across the northern mountain
valleys. This fog may also develop far enough south to affect the
KSFF and KCOE TAF sites, but confidence is low. /SVH

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  40  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        44  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       45  75  49  63  40  63 /   0  10  70  50   0   0
Colville       40  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      37  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        40  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     42  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      47  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 270000
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
500 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.

&&

.DISCUSSION...
Tonight and Fri: Pcpn and thunder chances, as well as the potential
for record high temps Fri are the primary areas of focus. Quickly
amplifying upper ridge over the Pac Nw overnight will help to
produce clearing skies, the result of which will be another chance
of valley fog for the nrn valleys of Wa and the Id Panhandle.
This is contingent upon the current mid and high cloud ceilings
over these same areas (which has been very slow to clear out),
actually does clear out later tonight. As a cold front approaches
the coast tonight, a plume of convective instability (mainly in
the 700-500mb lyr) moves NE across SE Wa between 12z and 18z on
the majority of model guidance, with both the GFS and SREF showing
a bullseye of mid cloud ceilings tracking NE. Though no model
guidance generates pcpn, this is a typical nocturnal convective
pcpn pattern. We kept it dry... but we`ll keep an eye on it. For
Fri...no big changes to the fcst as the low- level thermal ridge
surges N into Ern wa ahead of the cold front. Thermodynamic
profiles still support record or near-record high temps for a
number of towns.

...See our latest wx story on our home page to see which towns may
be breaking records...

By Fri afternoon, the sfc may remain capped as far as thunder
chances go for SE Wa until late afternoon. It`s likely we`ll see
the first showers develop over NE Oregon then develop/advect NE
into SE Wa and the cntrl Id Panhandle thereafter. Confidence is
not great as far as the timing and areal extent, with only about
half of the models wanting to generate convective pcpn coinciding with
the main axis of sfc-based instability.bz

Friday night through Thursday...The longwave pattern remains
dynamic. It starts out with ridge with axis placement to the east
of the Pacific Northwest which allows for approach of weather
systems from the southwest and west starting Friday night. Models
have been consistent in not only depicting such a system to move
through Friday night through Saturday they also hint at convection
firing up ahead of it, possibly in the form of thunderstorms over
Southeast Washington near the Blue Mountains and southern portions
of the Northern Idaho Panhandle. A moisture rich baroclinic band
juxtaposed and positively slanted between an area of low pressure
over the Gulf of Alaska and weak ridging over the Inland Northwest
remains in place afterward for Saturday night into Monday. This
fairly persistent positioning of the baroclinic band allow for low
pops for light rain lingering along a thin area in the lee of the
North Cascades and across the Southern British Columbia border
without much extension southward. This would leave locations
further to the south with dry conditions and above normal
temperatures. Monday night a cold front runs over and flattens the
ridge allowing colder, wet, windy and unsettled weather to return.
What remains in the wake of this Monday night/Tuesday cold front
passage is a general weak trof and/or flat progressive zonal flow
Tuesday night through Thursday. Such a general trof would favor
continued cool temperatures and off an on mainly diurnally driven
showers. /Pelatti

&&

.AVIATION...
00Z TAFS: High pressure will continue to build in over the region
tonight. This will result in a decreasing trend in low to mid
level cloud cover, but some high level cirrus is expected to hang
around. There is the potential for fog to redevelop late tonight
into the early morning hours across the northern mountain
valleys. This fog may also develop far enough south to affect the
KSFF and KCOE TAF sites, but confidence is low. /SVH

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  40  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        44  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       45  75  49  63  40  63 /   0  10  70  50   0   0
Colville       40  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      37  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        40  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     42  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      47  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 270000
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
500 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.

&&

.DISCUSSION...
Tonight and Fri: Pcpn and thunder chances, as well as the potential
for record high temps Fri are the primary areas of focus. Quickly
amplifying upper ridge over the Pac Nw overnight will help to
produce clearing skies, the result of which will be another chance
of valley fog for the nrn valleys of Wa and the Id Panhandle.
This is contingent upon the current mid and high cloud ceilings
over these same areas (which has been very slow to clear out),
actually does clear out later tonight. As a cold front approaches
the coast tonight, a plume of convective instability (mainly in
the 700-500mb lyr) moves NE across SE Wa between 12z and 18z on
the majority of model guidance, with both the GFS and SREF showing
a bullseye of mid cloud ceilings tracking NE. Though no model
guidance generates pcpn, this is a typical nocturnal convective
pcpn pattern. We kept it dry... but we`ll keep an eye on it. For
Fri...no big changes to the fcst as the low- level thermal ridge
surges N into Ern wa ahead of the cold front. Thermodynamic
profiles still support record or near-record high temps for a
number of towns.

...See our latest wx story on our home page to see which towns may
be breaking records...

By Fri afternoon, the sfc may remain capped as far as thunder
chances go for SE Wa until late afternoon. It`s likely we`ll see
the first showers develop over NE Oregon then develop/advect NE
into SE Wa and the cntrl Id Panhandle thereafter. Confidence is
not great as far as the timing and areal extent, with only about
half of the models wanting to generate convective pcpn coinciding with
the main axis of sfc-based instability.bz

Friday night through Thursday...The longwave pattern remains
dynamic. It starts out with ridge with axis placement to the east
of the Pacific Northwest which allows for approach of weather
systems from the southwest and west starting Friday night. Models
have been consistent in not only depicting such a system to move
through Friday night through Saturday they also hint at convection
firing up ahead of it, possibly in the form of thunderstorms over
Southeast Washington near the Blue Mountains and southern portions
of the Northern Idaho Panhandle. A moisture rich baroclinic band
juxtaposed and positively slanted between an area of low pressure
over the Gulf of Alaska and weak ridging over the Inland Northwest
remains in place afterward for Saturday night into Monday. This
fairly persistent positioning of the baroclinic band allow for low
pops for light rain lingering along a thin area in the lee of the
North Cascades and across the Southern British Columbia border
without much extension southward. This would leave locations
further to the south with dry conditions and above normal
temperatures. Monday night a cold front runs over and flattens the
ridge allowing colder, wet, windy and unsettled weather to return.
What remains in the wake of this Monday night/Tuesday cold front
passage is a general weak trof and/or flat progressive zonal flow
Tuesday night through Thursday. Such a general trof would favor
continued cool temperatures and off an on mainly diurnally driven
showers. /Pelatti

&&

.AVIATION...
00Z TAFS: High pressure will continue to build in over the region
tonight. This will result in a decreasing trend in low to mid
level cloud cover, but some high level cirrus is expected to hang
around. There is the potential for fog to redevelop late tonight
into the early morning hours across the northern mountain
valleys. This fog may also develop far enough south to affect the
KSFF and KCOE TAF sites, but confidence is low. /SVH

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  40  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        44  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       45  75  49  63  40  63 /   0  10  70  50   0   0
Colville       40  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      37  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        40  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     42  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      47  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 270000
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
500 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.

&&

.DISCUSSION...
Tonight and Fri: Pcpn and thunder chances, as well as the potential
for record high temps Fri are the primary areas of focus. Quickly
amplifying upper ridge over the Pac Nw overnight will help to
produce clearing skies, the result of which will be another chance
of valley fog for the nrn valleys of Wa and the Id Panhandle.
This is contingent upon the current mid and high cloud ceilings
over these same areas (which has been very slow to clear out),
actually does clear out later tonight. As a cold front approaches
the coast tonight, a plume of convective instability (mainly in
the 700-500mb lyr) moves NE across SE Wa between 12z and 18z on
the majority of model guidance, with both the GFS and SREF showing
a bullseye of mid cloud ceilings tracking NE. Though no model
guidance generates pcpn, this is a typical nocturnal convective
pcpn pattern. We kept it dry... but we`ll keep an eye on it. For
Fri...no big changes to the fcst as the low- level thermal ridge
surges N into Ern wa ahead of the cold front. Thermodynamic
profiles still support record or near-record high temps for a
number of towns.

...See our latest wx story on our home page to see which towns may
be breaking records...

By Fri afternoon, the sfc may remain capped as far as thunder
chances go for SE Wa until late afternoon. It`s likely we`ll see
the first showers develop over NE Oregon then develop/advect NE
into SE Wa and the cntrl Id Panhandle thereafter. Confidence is
not great as far as the timing and areal extent, with only about
half of the models wanting to generate convective pcpn coinciding with
the main axis of sfc-based instability.bz

Friday night through Thursday...The longwave pattern remains
dynamic. It starts out with ridge with axis placement to the east
of the Pacific Northwest which allows for approach of weather
systems from the southwest and west starting Friday night. Models
have been consistent in not only depicting such a system to move
through Friday night through Saturday they also hint at convection
firing up ahead of it, possibly in the form of thunderstorms over
Southeast Washington near the Blue Mountains and southern portions
of the Northern Idaho Panhandle. A moisture rich baroclinic band
juxtaposed and positively slanted between an area of low pressure
over the Gulf of Alaska and weak ridging over the Inland Northwest
remains in place afterward for Saturday night into Monday. This
fairly persistent positioning of the baroclinic band allow for low
pops for light rain lingering along a thin area in the lee of the
North Cascades and across the Southern British Columbia border
without much extension southward. This would leave locations
further to the south with dry conditions and above normal
temperatures. Monday night a cold front runs over and flattens the
ridge allowing colder, wet, windy and unsettled weather to return.
What remains in the wake of this Monday night/Tuesday cold front
passage is a general weak trof and/or flat progressive zonal flow
Tuesday night through Thursday. Such a general trof would favor
continued cool temperatures and off an on mainly diurnally driven
showers. /Pelatti

&&

.AVIATION...
00Z TAFS: High pressure will continue to build in over the region
tonight. This will result in a decreasing trend in low to mid
level cloud cover, but some high level cirrus is expected to hang
around. There is the potential for fog to redevelop late tonight
into the early morning hours across the northern mountain
valleys. This fog may also develop far enough south to affect the
KSFF and KCOE TAF sites, but confidence is low. /SVH

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  40  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        44  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       45  75  49  63  40  63 /   0  10  70  50   0   0
Colville       40  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      37  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        40  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     42  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      47  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KPQR 262148
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
245 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA FRIDAY
NIGHT WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO
RETURN LATE SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT
BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS
WILL LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING WELL
INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID SUNSHINE...EXPECT
MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH MOSTLY CLEAR SKIES
EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO DEVELOP TONIGHT...BUT
COVERAGE SHOULD BE A BIT LESS THAN THIS MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


.LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...BASED ON THE LATEST VISIBLE SATELLITE IMAGERY...THE
WIDESPREAD FOG AND LOW STRATUS HAS NOW BURNED OFF FOR MOST
EVERYONE. EXPECT VFR CONDITIONS THROUGH THE REMAINDER OF THE
AFTERNOON AND INTO THIS EVENING. WITH HIGH PRES AND MOSTLY CLEAR
SKIES IN PLACE AGAIN TONIGHT...EXPECT A REPEAT OF THE OVERNIGHT
AND MORNING IFR FOG AND LOW STRATUS. WILL GO WITH A NEAR
PERSISTENCE FCST OVERNIGHT INTO FRI MORNING...ALTHOUGH FOG MAY BE
A BIT FASTER TO LIFT TOMORROW. LIGHT RAIN IS EXPECTED TO MOVE ONTO
THE COAST FRI AFTERNOON AHEAD OF AN APPROACHING FRONT.

KPDX AND APPROACHES...VFR REMAINS IN CONTROL THROUGH THIS EVENING.
EXPECT IFR FOG AND LOW STRATUS TO REFORM BY 09Z AND CONTINUE
THROUGH AROUND 18Z FRI. CONDITIONS WILL THEN IMPROVE TO VFR
THROUGH THE REMAINDER OF FRI. PYLE

&&

.MARINE...FAIRLY BENIGN CONDITIONS CURRENTLY BEING OBSERVED OVER
THE COASTAL WATERS AS WEAK HIGH PRES SITS OVER THE REGION. WINDS
ARE IN THE 5 TO 10 KT RANGE AND SEAS REMAIN AROUND 7 TO 8 FT.
EXPECT LITTLE CHANGE THROUGH EARLY FRI.

A SLOW MOVING COLD FRONT WILL MOVE INTO THE WATERS LATER
FRI...BRINGING INCREASE SOUTH/SOUTHWESTERLY WINDS. THERE IS THE
POTENTIAL FOR A PERIOD OF LOW END SMALL CRAFT ADVISORY
WINDS...WITH GUSTS TO 25 KT POSSIBLE MAINLY FRI AFTERNOON AND
EVENING. SEAS MAY ALSO INCREASE A BIT WITH THE WINDS...BUT
EXPECTED THEM TO REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...NONE.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 262148
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
245 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA FRIDAY
NIGHT WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO
RETURN LATE SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT
BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS
WILL LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING WELL
INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID SUNSHINE...EXPECT
MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH MOSTLY CLEAR SKIES
EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO DEVELOP TONIGHT...BUT
COVERAGE SHOULD BE A BIT LESS THAN THIS MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


.LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...BASED ON THE LATEST VISIBLE SATELLITE IMAGERY...THE
WIDESPREAD FOG AND LOW STRATUS HAS NOW BURNED OFF FOR MOST
EVERYONE. EXPECT VFR CONDITIONS THROUGH THE REMAINDER OF THE
AFTERNOON AND INTO THIS EVENING. WITH HIGH PRES AND MOSTLY CLEAR
SKIES IN PLACE AGAIN TONIGHT...EXPECT A REPEAT OF THE OVERNIGHT
AND MORNING IFR FOG AND LOW STRATUS. WILL GO WITH A NEAR
PERSISTENCE FCST OVERNIGHT INTO FRI MORNING...ALTHOUGH FOG MAY BE
A BIT FASTER TO LIFT TOMORROW. LIGHT RAIN IS EXPECTED TO MOVE ONTO
THE COAST FRI AFTERNOON AHEAD OF AN APPROACHING FRONT.

KPDX AND APPROACHES...VFR REMAINS IN CONTROL THROUGH THIS EVENING.
EXPECT IFR FOG AND LOW STRATUS TO REFORM BY 09Z AND CONTINUE
THROUGH AROUND 18Z FRI. CONDITIONS WILL THEN IMPROVE TO VFR
THROUGH THE REMAINDER OF FRI. PYLE

&&

.MARINE...FAIRLY BENIGN CONDITIONS CURRENTLY BEING OBSERVED OVER
THE COASTAL WATERS AS WEAK HIGH PRES SITS OVER THE REGION. WINDS
ARE IN THE 5 TO 10 KT RANGE AND SEAS REMAIN AROUND 7 TO 8 FT.
EXPECT LITTLE CHANGE THROUGH EARLY FRI.

A SLOW MOVING COLD FRONT WILL MOVE INTO THE WATERS LATER
FRI...BRINGING INCREASE SOUTH/SOUTHWESTERLY WINDS. THERE IS THE
POTENTIAL FOR A PERIOD OF LOW END SMALL CRAFT ADVISORY
WINDS...WITH GUSTS TO 25 KT POSSIBLE MAINLY FRI AFTERNOON AND
EVENING. SEAS MAY ALSO INCREASE A BIT WITH THE WINDS...BUT
EXPECTED THEM TO REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...NONE.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 262148
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
245 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA FRIDAY
NIGHT WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO
RETURN LATE SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT
BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS
WILL LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING WELL
INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID SUNSHINE...EXPECT
MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH MOSTLY CLEAR SKIES
EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO DEVELOP TONIGHT...BUT
COVERAGE SHOULD BE A BIT LESS THAN THIS MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


.LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...BASED ON THE LATEST VISIBLE SATELLITE IMAGERY...THE
WIDESPREAD FOG AND LOW STRATUS HAS NOW BURNED OFF FOR MOST
EVERYONE. EXPECT VFR CONDITIONS THROUGH THE REMAINDER OF THE
AFTERNOON AND INTO THIS EVENING. WITH HIGH PRES AND MOSTLY CLEAR
SKIES IN PLACE AGAIN TONIGHT...EXPECT A REPEAT OF THE OVERNIGHT
AND MORNING IFR FOG AND LOW STRATUS. WILL GO WITH A NEAR
PERSISTENCE FCST OVERNIGHT INTO FRI MORNING...ALTHOUGH FOG MAY BE
A BIT FASTER TO LIFT TOMORROW. LIGHT RAIN IS EXPECTED TO MOVE ONTO
THE COAST FRI AFTERNOON AHEAD OF AN APPROACHING FRONT.

KPDX AND APPROACHES...VFR REMAINS IN CONTROL THROUGH THIS EVENING.
EXPECT IFR FOG AND LOW STRATUS TO REFORM BY 09Z AND CONTINUE
THROUGH AROUND 18Z FRI. CONDITIONS WILL THEN IMPROVE TO VFR
THROUGH THE REMAINDER OF FRI. PYLE

&&

.MARINE...FAIRLY BENIGN CONDITIONS CURRENTLY BEING OBSERVED OVER
THE COASTAL WATERS AS WEAK HIGH PRES SITS OVER THE REGION. WINDS
ARE IN THE 5 TO 10 KT RANGE AND SEAS REMAIN AROUND 7 TO 8 FT.
EXPECT LITTLE CHANGE THROUGH EARLY FRI.

A SLOW MOVING COLD FRONT WILL MOVE INTO THE WATERS LATER
FRI...BRINGING INCREASE SOUTH/SOUTHWESTERLY WINDS. THERE IS THE
POTENTIAL FOR A PERIOD OF LOW END SMALL CRAFT ADVISORY
WINDS...WITH GUSTS TO 25 KT POSSIBLE MAINLY FRI AFTERNOON AND
EVENING. SEAS MAY ALSO INCREASE A BIT WITH THE WINDS...BUT
EXPECTED THEM TO REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...NONE.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 262148
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
245 PM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ANOTHER DAY WITH ABOVE
AVERAGE TEMPERATURES AND SOME MORNING FOG IN THE LOWLANDS FRIDAY.
HOWEVER...A FRONT WILL SPREAD RAIN SHOWERS INTO THE AREA FRIDAY
NIGHT WITH A DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO
RETURN LATE SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT
BRINGS MORE RAIN AND COOLER WEATHER TO THE AREA BEGINNING LATE
MONDAY AND CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS
WILL LIKELY DROP BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.SHORT TERM...TONIGHT THROUGH SUNDAY...VISIBLE SATELLITE IMAGERY
INDICATES SUNNY SKIES ACROSS THE AREA WITH TEMPERATURES CLIMBING WELL
INTO THE 60S. WITH A COUPLE MORE HOURS OF SOLID SUNSHINE...EXPECT
MOST INTERIOR LOCATIONS TO WARM TO NEAR 70F. WITH MOSTLY CLEAR SKIES
EXPECTED OVERNIGHT...EXPECT MORE LOWLAND FOG TO DEVELOP TONIGHT...BUT
COVERAGE SHOULD BE A BIT LESS THAN THIS MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OR TWO TENTHS OF AN
INCH IN THE WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND BRING
ANOTHER ROUND OF ABOVE AVERAGE TEMPERATURES. THIS SHOULD RESULT IN
GENERALLY DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE
STREAMING NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE
AIM AT SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO FAR
SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


.LONG TERM...SUN NIGHT THROUGH THU...OVERALL PATTERN REMAINS RATHER
ZONAL...WITH WESTERLY FLOW ALOFT OVER THE REGION. THIS MEANS FRONTS
WILL PUSH ACROSS THE REGION FROM TIME TO TIME...BUT NO SIGNIFICANTLY
STRONG OR ORGANIZED SYSTEMS EXPECTED. AFTER A DRY PERIOD SAT NIGHT
THROUGH SUN NIGHT...CLOUDS WILL INCREASE ON MON WITH ANOTHER ROUND
OF RAIN FOR LATE IN THE DAY AND MON NIGHT. LIKELY SEE SHOWERS
CONTINUE ON TUE AND TUE NIGHT AS COOLER AIR ALOFT PUSHES ACROSS
REGION. AFTERWARDS...CONFIDENCE IN ANY SOLUTION BEGINS TO DROP AS
MODELS DIVERGE ON ANY PARTICULAR SOLUTION. WILL TREND TOWARDS DRIER
BUT KEEP SOME MINOR THREAT OF SHOWERS WITH NEAR SEASONABLE
TEMPERATURES FOR SECOND HALF OF NEXT WEEK.   ROCKEY.


&&

.AVIATION...BASED ON THE LATEST VISIBLE SATELLITE IMAGERY...THE
WIDESPREAD FOG AND LOW STRATUS HAS NOW BURNED OFF FOR MOST
EVERYONE. EXPECT VFR CONDITIONS THROUGH THE REMAINDER OF THE
AFTERNOON AND INTO THIS EVENING. WITH HIGH PRES AND MOSTLY CLEAR
SKIES IN PLACE AGAIN TONIGHT...EXPECT A REPEAT OF THE OVERNIGHT
AND MORNING IFR FOG AND LOW STRATUS. WILL GO WITH A NEAR
PERSISTENCE FCST OVERNIGHT INTO FRI MORNING...ALTHOUGH FOG MAY BE
A BIT FASTER TO LIFT TOMORROW. LIGHT RAIN IS EXPECTED TO MOVE ONTO
THE COAST FRI AFTERNOON AHEAD OF AN APPROACHING FRONT.

KPDX AND APPROACHES...VFR REMAINS IN CONTROL THROUGH THIS EVENING.
EXPECT IFR FOG AND LOW STRATUS TO REFORM BY 09Z AND CONTINUE
THROUGH AROUND 18Z FRI. CONDITIONS WILL THEN IMPROVE TO VFR
THROUGH THE REMAINDER OF FRI. PYLE

&&

.MARINE...FAIRLY BENIGN CONDITIONS CURRENTLY BEING OBSERVED OVER
THE COASTAL WATERS AS WEAK HIGH PRES SITS OVER THE REGION. WINDS
ARE IN THE 5 TO 10 KT RANGE AND SEAS REMAIN AROUND 7 TO 8 FT.
EXPECT LITTLE CHANGE THROUGH EARLY FRI.

A SLOW MOVING COLD FRONT WILL MOVE INTO THE WATERS LATER
FRI...BRINGING INCREASE SOUTH/SOUTHWESTERLY WINDS. THERE IS THE
POTENTIAL FOR A PERIOD OF LOW END SMALL CRAFT ADVISORY
WINDS...WITH GUSTS TO 25 KT POSSIBLE MAINLY FRI AFTERNOON AND
EVENING. SEAS MAY ALSO INCREASE A BIT WITH THE WINDS...BUT
EXPECTED THEM TO REMAIN BELOW 10 FT.

WEAK HIGH PRES RETURNS TO THE WATERS OVER THE WEEKEND. ANOTHER
FRONT IS EXPECTED TO MOVE THROUGH ON MON. THIS FRONT LOOKS A
LITTLE MORE IMPRESSIVE AND SHOULD BRING A SOLID ROUND OF SMALL
CRAFT ADVISORY WINDS...WITH A SMALL CHANCE OF GALES. A MORE
PROGRESSIVE WEATHER PATTERN FOR THE FIRST HALF OF NEXT WEEK.
EXPECT SEAS TO REACH INTO THE LOW TEENS LATE SUN OR MON AND REMAIN
ABOVE 10 FT FOR THE NEXT SEVERAL DAYS. PYLE

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...NONE.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KSEW 262124
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT THU MAR 26 2015

.SYNOPSIS...AN UPPER RIDGE WILL SHIFT EAST THROUGH FRIDAY. A COLD
FRONT WILL MOVE THROUGH WESTERN WASHINGTON FRIDAY NIGHT. A WEAK
UPPER RIDGE WILL STEER WEATHER SYSTEMS INTO BRITISH COLUMBIA OVER
THE WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY.

&&

.SHORT TERM...THE UPPER RIDGE WILL SHIFT EAST THROUGH FRIDAY AS A
COLD FRONT APPROACHES. THE COLD FRONT WILL MOVE THROUGH THE AREA
FRIDAY NIGHT. A FEW SHOWERS WILL PETER OUT SATURDAY MORNING AND A
PSCZ MAY LINGER FOR A FEW HOURS. A WARM FRONT WILL BRUSH THE NORTH
COAST OVER THE WEEKEND BUT MOST OF WESTERN WA SHOULD BE MILD AND DRY.

.LONG TERM...THE NORTH WA COAST WILL PROBABLY SEE PERIODS OF RAIN
OVER THE WEEKEND WHILE THE SOUTH WA COAST AND INLAND PORTIONS OF
WESTERN WA SHOULD BE DRY AND MILD. THE RIDGE WILL GIVE OUT ON MONDAY
AND A COLD FRONT WILL REACH THE AREA LATE MONDAY. THAT FRONT WILL BE
FOLLOWED BY A PERIOD OF FAIRLY ZONAL FLOW AND COLD AIR ALOFT.

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...AN UPPER LEVEL RIDGE OVER THE PAC NW WILL BRING DRY AND
STABLE WEATHER TO WESTERN WA TONIGHT. THE FLOW ALOFT IS WESTERLY.
PATCHY LOW CLOUDS AND FOG ARE POSSIBLE IN THE SOUTH SOUND OVERNIGHT.
THE RIDGE WILL EXIT EAST ON FRIDAY AS A COLD FRONT MOVES INLAND.
RAIN WILL REACH THE COAST BY 00Z SAT. 33

KSEA...VFR CONDITIONS TONIGHT WITH LIGHT SURFACE WINDS. 33

&&

.MARINE...WEAK HIGH PRESSURE WILL BUILD OVER WESTERN WA TONIGHT FOR
GENERALLY LIGHT WINDS OVER THE WATERS. A COLD FRONT WILL MOVE INLAND
LATE FRIDAY AFTERNOON OR EVENING. ONSHORE FLOW WILL INCREASE BEHIND
THIS FRONT FRIDAY NIGHT WITH SMALL CRAFT ADVISORY WINDS FORECAST
THROUGH THE CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET SOUND
AND HOOD CANAL. HIGH PRESSURE WILL REBUILD OVER THE REGION ON
SATURDAY. A FRONTAL BOUNDARY WILL STALL OVER SOUTHERN B.C. ON
SUNDAY...WITH SMALL CRAFT ADVISORY WINDS POSSIBLE OVER THE COASTAL
WATERS. 33

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...NONE.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML






000
FXUS66 KSEW 262124
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
300 PM PDT THU MAR 26 2015

.SYNOPSIS...AN UPPER RIDGE WILL SHIFT EAST THROUGH FRIDAY. A COLD
FRONT WILL MOVE THROUGH WESTERN WASHINGTON FRIDAY NIGHT. A WEAK
UPPER RIDGE WILL STEER WEATHER SYSTEMS INTO BRITISH COLUMBIA OVER
THE WEEKEND. A COLD FRONT WILL REACH WESTERN WASHINGTON LATE MONDAY.

&&

.SHORT TERM...THE UPPER RIDGE WILL SHIFT EAST THROUGH FRIDAY AS A
COLD FRONT APPROACHES. THE COLD FRONT WILL MOVE THROUGH THE AREA
FRIDAY NIGHT. A FEW SHOWERS WILL PETER OUT SATURDAY MORNING AND A
PSCZ MAY LINGER FOR A FEW HOURS. A WARM FRONT WILL BRUSH THE NORTH
COAST OVER THE WEEKEND BUT MOST OF WESTERN WA SHOULD BE MILD AND DRY.

.LONG TERM...THE NORTH WA COAST WILL PROBABLY SEE PERIODS OF RAIN
OVER THE WEEKEND WHILE THE SOUTH WA COAST AND INLAND PORTIONS OF
WESTERN WA SHOULD BE DRY AND MILD. THE RIDGE WILL GIVE OUT ON MONDAY
AND A COLD FRONT WILL REACH THE AREA LATE MONDAY. THAT FRONT WILL BE
FOLLOWED BY A PERIOD OF FAIRLY ZONAL FLOW AND COLD AIR ALOFT.

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...AN UPPER LEVEL RIDGE OVER THE PAC NW WILL BRING DRY AND
STABLE WEATHER TO WESTERN WA TONIGHT. THE FLOW ALOFT IS WESTERLY.
PATCHY LOW CLOUDS AND FOG ARE POSSIBLE IN THE SOUTH SOUND OVERNIGHT.
THE RIDGE WILL EXIT EAST ON FRIDAY AS A COLD FRONT MOVES INLAND.
RAIN WILL REACH THE COAST BY 00Z SAT. 33

KSEA...VFR CONDITIONS TONIGHT WITH LIGHT SURFACE WINDS. 33

&&

.MARINE...WEAK HIGH PRESSURE WILL BUILD OVER WESTERN WA TONIGHT FOR
GENERALLY LIGHT WINDS OVER THE WATERS. A COLD FRONT WILL MOVE INLAND
LATE FRIDAY AFTERNOON OR EVENING. ONSHORE FLOW WILL INCREASE BEHIND
THIS FRONT FRIDAY NIGHT WITH SMALL CRAFT ADVISORY WINDS FORECAST
THROUGH THE CENTRAL/EAST STRAIT OF JUAN DE FUCA...AND PUGET SOUND
AND HOOD CANAL. HIGH PRESSURE WILL REBUILD OVER THE REGION ON
SATURDAY. A FRONTAL BOUNDARY WILL STALL OVER SOUTHERN B.C. ON
SUNDAY...WITH SMALL CRAFT ADVISORY WINDS POSSIBLE OVER THE COASTAL
WATERS. 33

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...NONE.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML





000
FXUS66 KOTX 262104
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
204 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.

&&

.DISCUSSION...
Tonight and Fri: Pcpn and thunder chances, as well as the potential
for record high temps Fri are the primary areas of focus. Quickly
amplifying upper ridge over the Pac Nw overnight will help to
produce clearing skies, the result of which will be another chance
of valley fog for the nrn valleys of Wa and the Id Panhandle.
This is contingent upon the current mid and high cloud ceilings
over these same areas (which has been very slow to clear out),
actually does clear out later tonight. As a cold front approaches
the coast tonight, a plume of convective instability (mainly in
the 700-500mb lyr) moves NE across SE Wa between 12z and 18z on
the majority of model guidance, with both the GFS and SREF showing
a bullseye of mid cloud ceilings tracking NE. Though no model
guidance generates pcpn, this is a typical nocturnal convective
pcpn pattern. We kept it dry... but we`ll keep an eye on it. For
Fri...no big changes to the fcst as the low- level thermal ridge
surges N into Ern wa ahead of the cold front. Thermodynamic
profiles still support record or near-record high temps for a
number of towns.

...See our latest wx story on our home page to see which towns may
be breaking records...

By Fri afternoon, the sfc may remain capped as far as thunder
chances go for SE Wa until late afternoon. It`s likely we`ll see
the first showers develop over NE Oregon then develop/advect NE
into SE Wa and the cntrl Id Panhandle thereafter. Confidence is
not great as far as the timing and areal extent, with only about
half of the models wanting to generate convective pcpn coinciding with
the main axis of sfc-based instability.bz

Friday night through Thursday...The longwave pattern remains
dynamic. It starts out with ridge with axis placement to the east
of the Pacific Northwest which allows for approach of weather
systems from the southwest and west starting Friday night. Models
have been consistent in not only depicting such a system to move
through Friday night through Saturday they also hint at convection
firing up ahead of it, possibly in the form of thunderstorms over
Southeast Washington near the Blue Mountains and southern portions
of the Northern Idaho Panhandle. A moisture rich baroclinic band
juxtaposed and positively slanted between an area of low pressure
over the Gulf of Alaska and weak ridging over the Inland Northwest
remains in place afterward for Saturday night into Monday. This
fairly persistent positioning of the baroclinic band allow for low
pops for light rain lingering along a thin area in the lee of the
North Cascades and across the Southern British Columbia border
without much extension southward. This would leave locations
further to the south with dry conditions and above normal
temperatures. Monday night a cold front runs over and flattens the
ridge allowing colder, wet, windy and unsettled weather to return.
What remains in the wake of this Monday night/Tuesday cold front
passage is a general weak trof and/or flat progressive zonal flow
Tuesday night through Thursday. Such a general trof would favor
continued cool temperatures and off an on mainly diurnally driven
showers. /Pelatti

&&

.AVIATION...
18Z TAFS: With the upper level ridge amplifying over the Pac Nw,
expect VFR conditions for all TAF sites... though there still
remains patches of IFR ceilings near KEPH that are quickly
dissipating and should be gone by 20z. Opaque ceilings ranging
from 15-20k ft agl are still widespread across NE Wa and the N Id
Panhandle... overlaying patches of MVFR stratus in the valleys.
These lower cloud decks may take closer to 22-23z to lift to VFR.
bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  40  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        44  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       45  75  49  63  40  63 /   0  10  70  50   0   0
Colville       40  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      37  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        40  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     42  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      47  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 262104
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
204 PM PDT THU MAR 26 2015

.SYNOPSIS...
Friday through the weekend will be much warmer than average with
afternoon temperatures in the 60s and even some lower 70s down in
the Columbia Basin. Record high temperatures are possible Friday
afternoon. Precipitation chances will be tied to two cold front
passages. The first arrives Friday night and a second Monday night
or Tuesday. Gusty winds will accompany each front...especially
Tuesday.

&&

.DISCUSSION...
Tonight and Fri: Pcpn and thunder chances, as well as the potential
for record high temps Fri are the primary areas of focus. Quickly
amplifying upper ridge over the Pac Nw overnight will help to
produce clearing skies, the result of which will be another chance
of valley fog for the nrn valleys of Wa and the Id Panhandle.
This is contingent upon the current mid and high cloud ceilings
over these same areas (which has been very slow to clear out),
actually does clear out later tonight. As a cold front approaches
the coast tonight, a plume of convective instability (mainly in
the 700-500mb lyr) moves NE across SE Wa between 12z and 18z on
the majority of model guidance, with both the GFS and SREF showing
a bullseye of mid cloud ceilings tracking NE. Though no model
guidance generates pcpn, this is a typical nocturnal convective
pcpn pattern. We kept it dry... but we`ll keep an eye on it. For
Fri...no big changes to the fcst as the low- level thermal ridge
surges N into Ern wa ahead of the cold front. Thermodynamic
profiles still support record or near-record high temps for a
number of towns.

...See our latest wx story on our home page to see which towns may
be breaking records...

By Fri afternoon, the sfc may remain capped as far as thunder
chances go for SE Wa until late afternoon. It`s likely we`ll see
the first showers develop over NE Oregon then develop/advect NE
into SE Wa and the cntrl Id Panhandle thereafter. Confidence is
not great as far as the timing and areal extent, with only about
half of the models wanting to generate convective pcpn coinciding with
the main axis of sfc-based instability.bz

Friday night through Thursday...The longwave pattern remains
dynamic. It starts out with ridge with axis placement to the east
of the Pacific Northwest which allows for approach of weather
systems from the southwest and west starting Friday night. Models
have been consistent in not only depicting such a system to move
through Friday night through Saturday they also hint at convection
firing up ahead of it, possibly in the form of thunderstorms over
Southeast Washington near the Blue Mountains and southern portions
of the Northern Idaho Panhandle. A moisture rich baroclinic band
juxtaposed and positively slanted between an area of low pressure
over the Gulf of Alaska and weak ridging over the Inland Northwest
remains in place afterward for Saturday night into Monday. This
fairly persistent positioning of the baroclinic band allow for low
pops for light rain lingering along a thin area in the lee of the
North Cascades and across the Southern British Columbia border
without much extension southward. This would leave locations
further to the south with dry conditions and above normal
temperatures. Monday night a cold front runs over and flattens the
ridge allowing colder, wet, windy and unsettled weather to return.
What remains in the wake of this Monday night/Tuesday cold front
passage is a general weak trof and/or flat progressive zonal flow
Tuesday night through Thursday. Such a general trof would favor
continued cool temperatures and off an on mainly diurnally driven
showers. /Pelatti

&&

.AVIATION...
18Z TAFS: With the upper level ridge amplifying over the Pac Nw,
expect VFR conditions for all TAF sites... though there still
remains patches of IFR ceilings near KEPH that are quickly
dissipating and should be gone by 20z. Opaque ceilings ranging
from 15-20k ft agl are still widespread across NE Wa and the N Id
Panhandle... overlaying patches of MVFR stratus in the valleys.
These lower cloud decks may take closer to 22-23z to lift to VFR.
bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        42  70  46  60  38  59 /   0   0  60  30   0   0
Coeur d`Alene  40  69  43  60  36  59 /   0   0  60  60   0   0
Pullman        44  71  45  57  39  58 /   0  10  70  50   0   0
Lewiston       45  75  49  63  40  63 /   0  10  70  50   0   0
Colville       40  73  43  62  37  61 /   0  10  60  30   0  10
Sandpoint      37  68  42  59  34  58 /   0  10  60  60   0   0
Kellogg        40  67  43  56  36  57 /   0  10  80  90  10   0
Moses Lake     42  73  46  64  38  65 /   0   0  20  10   0   0
Wenatchee      47  72  47  62  42  66 /   0   0  20  10   0  10
Omak           42  71  42  64  36  64 /   0  10  40  10   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 261747
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1047 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warming
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Rest of today: We`ve made a few minor changes to the fcst, which
includes sky cover, winds and high temps. We increased the mid to
high cloud areal coverage based on satellite and obs trends...
though these clouds are not thick and are should allow filtered
sun for most zones south of a line from Spokane to Moses Lake the
next few hours. NE Wa and the Idaho Panhandle will hold on to mostly
cloudy conditions well into the afternoon. These thick clouds are
tied to what may be a lee Cascade wave... and isentropic ascent
along a slowly N moving warm front. Only light amnts of rain will
fall...mainly in the mtns for these areas, decreasing during the
day as the front moves N.

The next wx focus we`ll be working on are near record high temps
for Fri...winds on Sat (and especially Tues). Slow levels will
fall beginning Tues Nt, with possible pass-level snows. bz

&&

.AVIATION...
18Z TAFS: With the upper level ridge amplifying over the Pac Nw,
expect VFR conditions for all TAF sites... though there still
remains patches of IFR ceilings near KEPH that are quickly
dissipating and should be gone by 20z. Opaque ceilings ranging
from 15-20k ft agl are still widespread across NE Wa and the N Id
Panhandle... overlaying patches of MVFR stratus in the valleys.
These lower cloud decks may take closer to 22-23z to lift to VFR.
bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        60  42  69  46  60  38 /   0   0  10  60  20   0
Coeur d`Alene  59  40  68  43  60  36 /  10  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  10  10  10  60  30   0
Sandpoint      56  37  66  42  59  34 /  20  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  20  10  10  60  60  10
Moses Lake     68  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           62  42  69  42  66  36 /   0   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 261747
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1047 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warming
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Rest of today: We`ve made a few minor changes to the fcst, which
includes sky cover, winds and high temps. We increased the mid to
high cloud areal coverage based on satellite and obs trends...
though these clouds are not thick and are should allow filtered
sun for most zones south of a line from Spokane to Moses Lake the
next few hours. NE Wa and the Idaho Panhandle will hold on to mostly
cloudy conditions well into the afternoon. These thick clouds are
tied to what may be a lee Cascade wave... and isentropic ascent
along a slowly N moving warm front. Only light amnts of rain will
fall...mainly in the mtns for these areas, decreasing during the
day as the front moves N.

The next wx focus we`ll be working on are near record high temps
for Fri...winds on Sat (and especially Tues). Slow levels will
fall beginning Tues Nt, with possible pass-level snows. bz

&&

.AVIATION...
18Z TAFS: With the upper level ridge amplifying over the Pac Nw,
expect VFR conditions for all TAF sites... though there still
remains patches of IFR ceilings near KEPH that are quickly
dissipating and should be gone by 20z. Opaque ceilings ranging
from 15-20k ft agl are still widespread across NE Wa and the N Id
Panhandle... overlaying patches of MVFR stratus in the valleys.
These lower cloud decks may take closer to 22-23z to lift to VFR.
bz

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        60  42  69  46  60  38 /   0   0  10  60  20   0
Coeur d`Alene  59  40  68  43  60  36 /  10  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  10  10  10  60  30   0
Sandpoint      56  37  66  42  59  34 /  20  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  20  10  10  60  60  10
Moses Lake     68  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           62  42  69  42  66  36 /   0   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 261620
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
920 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warming
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Rest of today: We`ve made a few minor changes to the fcst, which
includes sky cover, winds and high temps. We increased the mid to
high cloud areal coverage based on satellite and obs trends...
though these clouds are not thick and are should allow filtered
sun for most zones south of a line from Spokane to Moses Lake the
next few hours. NE Wa and the Idaho Panhandle will hold on to mostly
cloudy conditions well into the afternoon. These thick clouds are
tied to what may be a lee Cascade wave... and isentropic ascent
along a slowly N moving warm front. Only light amnts of rain will
fall...mainly in the mtns for these areas, decreasing during the
day as the front moves N.

The next wx focus we`ll be working on are near record high temps
for Fri...winds on Sat (and especially Tues). Slow levels will
fall beginning Tues Nt, with possible pass-level snows. bz

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        60  42  69  46  60  38 /  10   0  10  60  20   0
Coeur d`Alene  59  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      56  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     68  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           62  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 261620
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
920 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warming
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Rest of today: We`ve made a few minor changes to the fcst, which
includes sky cover, winds and high temps. We increased the mid to
high cloud areal coverage based on satellite and obs trends...
though these clouds are not thick and are should allow filtered
sun for most zones south of a line from Spokane to Moses Lake the
next few hours. NE Wa and the Idaho Panhandle will hold on to mostly
cloudy conditions well into the afternoon. These thick clouds are
tied to what may be a lee Cascade wave... and isentropic ascent
along a slowly N moving warm front. Only light amnts of rain will
fall...mainly in the mtns for these areas, decreasing during the
day as the front moves N.

The next wx focus we`ll be working on are near record high temps
for Fri...winds on Sat (and especially Tues). Slow levels will
fall beginning Tues Nt, with possible pass-level snows. bz

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        60  42  69  46  60  38 /  10   0  10  60  20   0
Coeur d`Alene  59  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      56  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     68  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           62  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 261620
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
920 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warming
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Rest of today: We`ve made a few minor changes to the fcst, which
includes sky cover, winds and high temps. We increased the mid to
high cloud areal coverage based on satellite and obs trends...
though these clouds are not thick and are should allow filtered
sun for most zones south of a line from Spokane to Moses Lake the
next few hours. NE Wa and the Idaho Panhandle will hold on to mostly
cloudy conditions well into the afternoon. These thick clouds are
tied to what may be a lee Cascade wave... and isentropic ascent
along a slowly N moving warm front. Only light amnts of rain will
fall...mainly in the mtns for these areas, decreasing during the
day as the front moves N.

The next wx focus we`ll be working on are near record high temps
for Fri...winds on Sat (and especially Tues). Slow levels will
fall beginning Tues Nt, with possible pass-level snows. bz

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        60  42  69  46  60  38 /  10   0  10  60  20   0
Coeur d`Alene  59  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      56  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     68  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           62  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KPQR 261607
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
859 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND CONTINUING
INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP NEAR
OR SLIGHTLY BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...MANY SITES UP AND DOWN THE WILLAMETTE VALLEY ARE
EXPERIENCING FOG...DENSE AT TIMES. BASED ON THE THICKNESS OF THE FOG
AND CLIMATOLOGY...IT APPEARS MOST AREAS SHOULD SEE THE FOG AND LOW
CLOUDS GIVE WAY TO SUNSHINE BETWEEN 10 AM AND NOON SO WILL LIKELY LET
THE CURRENT DENSE FOG ADVISORY EXPIRE AT 11 AM. GIVEN THE CURRENT FOG
COVERAGE...AFTERNOON HIGH TEMPERATURES WERE COOLED A DEGREE OR
TWO...BUT MOST WILLAMETTE VALLEY LOCATIONS SHOULD STILL TOP OUT
AROUND 70F THIS AFTERNOON. FOR SOME...IT WILL LIKELY BE THE WARMEST
DAY OF THE YEAR SO FAR. EXPECT FOG TO DEVELOP AGAIN TONIGHT ACROSS
THE LOWLANDS...BUT COVERAGE SHOULD BE LESS THAN THIS MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OF AN INCH IN THE
WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND ALLOW
TEMPERATURES TO REMAIN ABOVE AVERAGE. THIS SHOULD RESULT IN GENERALLY
DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE STREAMING
NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE AIM AT
SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A SLIGHT CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO
FAR SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


.LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY
NIGHT THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING
DRY CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...WIDESPREAD DENSE FOG AND LOW STRATUS WILL KEEP LOW IFR
CONDITIONS IN PLACE THROUGH MUCH OF THE MORNING. BASED ON A COUPLE
OF MORNING PIREPS AND THE 12Z KSLE SOUNDING...THE TOP OF THE CLOUD
LAYER APPEARS TO BE ABOUT 800 TO 1000 FT. LOCAL CLIMATOLOGY WOULD
SUGGEST A FOG AND STRATUS BURN OFF OF 18 TO 19Z. THEN EXPECT
WIDESPREAD VFR CONDITIONS THIS AFTERNOON. WITH HIGH PRES STILL IN
PLACE TONIGHT...EXPECT ANOTHER ROUND OF DENSE FOG AND LOW STRATUS
TO DEVELOP BETWEEN 03-06Z FRI ALONG THE COAST...AND CLOSER TO
06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...FOG/LOW STRATUS WILL CONTINUE TO IMPACT KPDX
THROUGH ABOUT 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 06-09Z TONIGHT/FRIDAY MORNING.
PYLE

&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY WINDS ON MONDAY...WITH SEAS
CLIMBING INTO THE LOW TEENS BY TUESDAY. PYLE/27

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PDT THIS MORNING FOR CENTRAL
     WILLAMETTE VALLEY-GREATER PORTLAND METRO AREA-SOUTH
     WILLAMETTE VALLEY.

WA...DENSE FOG ADVISORY UNTIL 11 AM PDT THIS MORNING FOR GREATER
     VANCOUVER AREA.

PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 11 AM
     PDT THIS MORNING.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 261607
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
859 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA BEGINNING LATE MONDAY AND CONTINUING
INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS WILL LIKELY DROP NEAR
OR SLIGHTLY BELOW CASCADE PASS LEVELS DURING THIS PERIOD.

&&

.UPDATE...MANY SITES UP AND DOWN THE WILLAMETTE VALLEY ARE
EXPERIENCING FOG...DENSE AT TIMES. BASED ON THE THICKNESS OF THE FOG
AND CLIMATOLOGY...IT APPEARS MOST AREAS SHOULD SEE THE FOG AND LOW
CLOUDS GIVE WAY TO SUNSHINE BETWEEN 10 AM AND NOON SO WILL LIKELY LET
THE CURRENT DENSE FOG ADVISORY EXPIRE AT 11 AM. GIVEN THE CURRENT FOG
COVERAGE...AFTERNOON HIGH TEMPERATURES WERE COOLED A DEGREE OR
TWO...BUT MOST WILLAMETTE VALLEY LOCATIONS SHOULD STILL TOP OUT
AROUND 70F THIS AFTERNOON. FOR SOME...IT WILL LIKELY BE THE WARMEST
DAY OF THE YEAR SO FAR. EXPECT FOG TO DEVELOP AGAIN TONIGHT ACROSS
THE LOWLANDS...BUT COVERAGE SHOULD BE LESS THAN THIS MORNING.

A FRONT CURRENTLY POSITIONED BETWEEN 130W AND 140W WILL SHIFT TOWARD
THE REGION ON FRIDAY. LIFT AHEAD OF THE UPPER LEVEL TROUGH AND
COOLING TEMPERATURES ALOFT MAY INITIATE A FEW SHOWERS AND POSSIBLY A
THUNDERSTORM ACROSS THE CASCADES FRIDAY AFTERNOON. EXPECT THE BULK OF
THE SHOWERS ASSOCIATED WITH THE UPPER LEVEL TROUGH TO ARRIVE ACROSS
NORTHWEST OREGON AND SOUTHWEST WASHINGTON FRIDAY EVENING...LIKELY
CONTINUING FOR MUCH OF THE NIGHT. RAINFALL AMOUNTS SHOULD BE
RELATIVELY LIGHT...LIKELY LESS THAN A HALF INCH IN THE COAST RANGE
AND CASCADES...AND PROBABLY CLOSER TO A TENTH OF AN INCH IN THE
WILLAMETTE VALLEY.

A LOWERING SUBSIDENCE INVERSION LATE FRIDAY NIGHT SHOULD RESULT IN
SHOWERS BECOMING INCREASINGLY CONFINED TO THE COAST AND CASCADES
BEFORE DECREASING FURTHER SATURDAY MORNING. A RELATIVELY FLAT RIDGE
SHOULD THEN BUILD INTO THE REGION LATE SATURDAY AND SUNDAY AND ALLOW
TEMPERATURES TO REMAIN ABOVE AVERAGE. THIS SHOULD RESULT IN GENERALLY
DRY CONDITIONS ACROSS THE AREA. HOWEVER...MOISTURE STREAMING
NORTHEASTWARD ALONG THE EDGE OF THE HIGH PRESSURE WILL TAKE AIM AT
SOUTHWEST BRITISH COLUMBIA AND NORTHWEST WASHINGTON. AS A
RESULT...THERE IS A SLIGHT CHANCE THIS RAIN COULD SHIFT BRIEFLY INTO
FAR SOUTHWEST WASHINGTON DURING THIS PERIOD. IF NOTHING ELSE...LOW TO
MID LEVEL CLOUDS WILL LIKELY BE A BIT MORE PERSISTENT ACROSS THE
NORTHERN PORTION OF OUR CWA DURING THIS PERIOD. /NEUMAN


.LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY
NIGHT THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING
DRY CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...WIDESPREAD DENSE FOG AND LOW STRATUS WILL KEEP LOW IFR
CONDITIONS IN PLACE THROUGH MUCH OF THE MORNING. BASED ON A COUPLE
OF MORNING PIREPS AND THE 12Z KSLE SOUNDING...THE TOP OF THE CLOUD
LAYER APPEARS TO BE ABOUT 800 TO 1000 FT. LOCAL CLIMATOLOGY WOULD
SUGGEST A FOG AND STRATUS BURN OFF OF 18 TO 19Z. THEN EXPECT
WIDESPREAD VFR CONDITIONS THIS AFTERNOON. WITH HIGH PRES STILL IN
PLACE TONIGHT...EXPECT ANOTHER ROUND OF DENSE FOG AND LOW STRATUS
TO DEVELOP BETWEEN 03-06Z FRI ALONG THE COAST...AND CLOSER TO
06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...FOG/LOW STRATUS WILL CONTINUE TO IMPACT KPDX
THROUGH ABOUT 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 06-09Z TONIGHT/FRIDAY MORNING.
PYLE

&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY WINDS ON MONDAY...WITH SEAS
CLIMBING INTO THE LOW TEENS BY TUESDAY. PYLE/27

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PDT THIS MORNING FOR CENTRAL
     WILLAMETTE VALLEY-GREATER PORTLAND METRO AREA-SOUTH
     WILLAMETTE VALLEY.

WA...DENSE FOG ADVISORY UNTIL 11 AM PDT THIS MORNING FOR GREATER
     VANCOUVER AREA.

PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL 11 AM
     PDT THIS MORNING.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KSEW 261550
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 AM PDT THU MAR 26 2015

.SYNOPSIS...AN UPPER RIDGE IS OVER THE REGION TODAY FOR DRY WEATHER.
A FRONT WILL MOVE THROUGH WESTERN WASHINGTON FRIDAY EVENING. A WEAK
UPPER RIDGE OVER THE PACIFIC NORTHWEST THIS WEEKEND WILL STEER
WEATHER SYSTEMS INTO BRITISH COLUMBIA. A STRONGER COLD FRONT WILL
SWEEP THROUGH THE AREA MONDAY NIGHT.

&&

.SHORT TERM...AN UPPER RIDGE WILL IS OVER THE REGION AND TODAY WILL
BE DRY AND WARM WITH HIGHS IN THE 60S. THE RIDGE WILL SHIFT EAST
TONIGHT AND FRIDAY AS A FRONT APPROACHES. THE FRONT WILL BRING RAIN
TO THE COAST FRIDAY AFTERNOON AND THE INTERIOR OF WESTERN WA FRIDAY
NIGHT. WESTERLY FLOW ALOFT WITH LOW LEVEL ONSHORE FLOW SHOULD KEEP
SATURDAY ON THE CLOUDY SIDE...WITH SOME SHOWERS LINGERING IN THE
CASCADES AND PERHAPS A PSCZ. A WARM FRONT WILL BRUSH THE NORTH COAST
LATER IN THE DAY ON SATURDAY.

.LONG TERM...THE UPPER RIDGE OVER THE REGION THIS WEEKEND SHOULD
PROTECT MOST OF WESTERN WA FROM WEATHER SYSTEMS TRACKING INTO B.C.
THE B.C. COAST AND MUCH OF VANCOUVER ISLAND WILL BE WET THIS
WEEKEND...AND THE NORTH WA COAST MIGHT SEE PERIODS OF RAIN. THE
SOUTH WA COAST AND THE INLAND PORTION OF WESTERN WA SHOULD BE DRY
AND MILD WITH 500MB HEIGHTS IN THE 560S. THE WEAK FLAT RIDGE WILL
GIVE OUT MONDAY AND A DECENT COLD FRONT WILL REACH THE AREA BY
MONDAY EVENING. THAT WILL BE FOLLOWED BY A PERIOD OF FAIRLY STRONG
ZONAL FLOW AND COLD AIR ALOFT. A SECOND EMBEDDED FRONTAL WAVE SHOULD
REACH WESTERN WA LATER TUE. THE FORECAST WILL NEED TO BE PUSHED
COOLER AND WETTER STARTING NEXT TUESDAY.

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...AN UPPER LEVEL RIDGE OVER THE PAC NW WILL BRING DRY AND
STABLE WEATHER TO WESTERN WA TODAY. THE FLOW ALOFT IS WESTERLY.
THERE IS PATCHY LOW CLOUDS AND FOG OVER THE SOUTH SOUND THIS
MORNING...OTHERWISE EXPECT VFR CONDITIONS TODAY. THE RIDGE WILL EXIT
EAST ON FRIDAY AS A COLD FRONT MOVES INLAND. RAIN WILL REACH THE
COAST BY 00Z SAT. 33

KSEA...VFR CONDITIONS TODAY WITH LIGHT SOUTHERLY SURFACE WINDS. 33

&&

.MARINE...WEAK HIGH PRESSURE WILL BUILD OVER WESTERN WA TODAY FOR
GENERALLY LIGHT WINDS OVER THE WATERS. A COLD FRONT WILL MOVE INLAND
LATE FRIDAY AFTERNOON OR EVENING. ONSHORE FLOW WILL INCREASE BEHIND
THIS FRONT FRIDAY NIGHT WITH SMALL CRAFT ADVISORY WEST WINDS
FORECAST THROUGH THE CENTRAL/EAST STRAIT OF JUAN DE FUCA. HIGH
PRESSURE WILL REBUILD OVER THE REGION ON SATURDAY. A FRONTAL
BOUNDARY WILL STALL OVER SOUTHERN B.C. ON SUNDAY...WITH SMALL CRAFT
ADVISORY WINDS POSSIBLE OVER THE COASTAL WATERS. 33

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...NONE.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML






000
FXUS66 KSEW 261550
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 AM PDT THU MAR 26 2015

.SYNOPSIS...AN UPPER RIDGE IS OVER THE REGION TODAY FOR DRY WEATHER.
A FRONT WILL MOVE THROUGH WESTERN WASHINGTON FRIDAY EVENING. A WEAK
UPPER RIDGE OVER THE PACIFIC NORTHWEST THIS WEEKEND WILL STEER
WEATHER SYSTEMS INTO BRITISH COLUMBIA. A STRONGER COLD FRONT WILL
SWEEP THROUGH THE AREA MONDAY NIGHT.

&&

.SHORT TERM...AN UPPER RIDGE WILL IS OVER THE REGION AND TODAY WILL
BE DRY AND WARM WITH HIGHS IN THE 60S. THE RIDGE WILL SHIFT EAST
TONIGHT AND FRIDAY AS A FRONT APPROACHES. THE FRONT WILL BRING RAIN
TO THE COAST FRIDAY AFTERNOON AND THE INTERIOR OF WESTERN WA FRIDAY
NIGHT. WESTERLY FLOW ALOFT WITH LOW LEVEL ONSHORE FLOW SHOULD KEEP
SATURDAY ON THE CLOUDY SIDE...WITH SOME SHOWERS LINGERING IN THE
CASCADES AND PERHAPS A PSCZ. A WARM FRONT WILL BRUSH THE NORTH COAST
LATER IN THE DAY ON SATURDAY.

.LONG TERM...THE UPPER RIDGE OVER THE REGION THIS WEEKEND SHOULD
PROTECT MOST OF WESTERN WA FROM WEATHER SYSTEMS TRACKING INTO B.C.
THE B.C. COAST AND MUCH OF VANCOUVER ISLAND WILL BE WET THIS
WEEKEND...AND THE NORTH WA COAST MIGHT SEE PERIODS OF RAIN. THE
SOUTH WA COAST AND THE INLAND PORTION OF WESTERN WA SHOULD BE DRY
AND MILD WITH 500MB HEIGHTS IN THE 560S. THE WEAK FLAT RIDGE WILL
GIVE OUT MONDAY AND A DECENT COLD FRONT WILL REACH THE AREA BY
MONDAY EVENING. THAT WILL BE FOLLOWED BY A PERIOD OF FAIRLY STRONG
ZONAL FLOW AND COLD AIR ALOFT. A SECOND EMBEDDED FRONTAL WAVE SHOULD
REACH WESTERN WA LATER TUE. THE FORECAST WILL NEED TO BE PUSHED
COOLER AND WETTER STARTING NEXT TUESDAY.

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...AN UPPER LEVEL RIDGE OVER THE PAC NW WILL BRING DRY AND
STABLE WEATHER TO WESTERN WA TODAY. THE FLOW ALOFT IS WESTERLY.
THERE IS PATCHY LOW CLOUDS AND FOG OVER THE SOUTH SOUND THIS
MORNING...OTHERWISE EXPECT VFR CONDITIONS TODAY. THE RIDGE WILL EXIT
EAST ON FRIDAY AS A COLD FRONT MOVES INLAND. RAIN WILL REACH THE
COAST BY 00Z SAT. 33

KSEA...VFR CONDITIONS TODAY WITH LIGHT SOUTHERLY SURFACE WINDS. 33

&&

.MARINE...WEAK HIGH PRESSURE WILL BUILD OVER WESTERN WA TODAY FOR
GENERALLY LIGHT WINDS OVER THE WATERS. A COLD FRONT WILL MOVE INLAND
LATE FRIDAY AFTERNOON OR EVENING. ONSHORE FLOW WILL INCREASE BEHIND
THIS FRONT FRIDAY NIGHT WITH SMALL CRAFT ADVISORY WEST WINDS
FORECAST THROUGH THE CENTRAL/EAST STRAIT OF JUAN DE FUCA. HIGH
PRESSURE WILL REBUILD OVER THE REGION ON SATURDAY. A FRONTAL
BOUNDARY WILL STALL OVER SOUTHERN B.C. ON SUNDAY...WITH SMALL CRAFT
ADVISORY WINDS POSSIBLE OVER THE COASTAL WATERS. 33

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...NONE.

&&

$$

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML







000
FXUS66 KPQR 261151
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
451 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.
&&

.UPDATE...FOG IS RAPIDLY DEVELOPING IN THE INTERIOR VALLEYS THIS
MORNING. SURFACE OBSERVATIONS AND WEB CAMERAS SHOW THAT THE
VISIBILITY IS RESTRICTED TO LESS THAN A QUARTER OF A MILE IN MANY
AREAS AND HAVE MADE A QUICK UPDATE TO ISSUE A DENSE FOG ADVISORY FOR
THE WILLAMETTE VALLEY. THE VISIBILITIES WILL GO UP AND DOWN...BUT
ARE ESPECIALLY BAD IN THE PORTLAND METRO AREA AND ALONG I-5.TJ

PREVIOUS SHORT TERM...TODAY THROUGH SATURDAY NIGHT...SOME HIGH
CLOUDS LINGER ACROSS EXTREME SW WASHINGTON AND EXTREME NW OREGON
EARLY THIS MORNING AS A WARM FRONT MOVES INLAND FAR NORTH OF THE
AREA. THE SKIES HAVE CLEARED SOUTH OF THE PORTLAND METRO AREA
OVERNIGHT. LINGERING SURFACE MOISTURE...LIGHT WINDS...AND THE
CLEARING SKIES HAVE RESULTED IN RADIATION FOG DEVELOPING IN MANY OF
THE INTERIOR VALLEYS. THE CLOUDS THAT ARE MOVING ACROSS THE NORTHERN
AREA HAVE RESTRICTED RADIATION COOLING SO FAR...BUT ARE THIN ENOUGH
THAT IT IS LIKELY FOR MOST AREAS INLAND VALLEYS TO HAVE FOG BY
SUNRISE.

HIGH PRESSURE WILL CONTINUE TO BUILD TODAY AND PUSH THE FRONT AND
ASSOCIATED CLOUDS NORTH OF THE AREA. SUNSHINE SHOULD HEAT THE SURFACE
AND PROVIDE ENOUGH MIXING FOR THE FOG TO CLEAR LATER THIS MORNING.
SUNSHINE COMBINED WITH WARM AIR ADVECTION IN THE WAKE OF THE WARM
FRONT WILL RESULT IN TODAY POSSIBLY BEING THE WARMEST DAY OF THE YEAR
SO FAR FOR THE INTERIOR. IF THE FOG BEHAVES AND CLEARS THIS MORNING
THEN TEMPERATURES SHOULD WARM INTO THE LOW TO MID 70S FOR THE
WILLAMETTE VALLEY. WEAK ONSHORE FLOW WILL MODERATE THE COASTAL
TEMPERATURES WHERE THEY SHOULD PEAK IN THE LOW TO MID 60S.

THE UPPER RIDGE SHOULD MOVE FURTHER INLAND TONIGHT ALLOWING A COLD
FRONT THAT IS CURRENTLY AROUND 750 MILES OFFSHORE TO NEAR THE PACIFIC
NW. THERE MAY BE SOME HIGH CLOUDS THAT WILL STREAM OVER THE AREA
AHEAD OF THE FRONT...BUT THINK THESE WILL BE VERY THIN AND BARELY
LIMIT RADIATION COOLING. SURFACE MOISTURE WILL BE LESS AVAILABLE
TONIGHT...BUT LIGHT ONSHORE WINDS MAY BRING ENOUGH MARINE MOISTURE
INLAND FOR SOME VALLEY FOG TO FORM LATE TONIGHT.

THE COLD FRONT AND A CLOSELY FOLLOWING UPPER TROUGH WILL MOVE ACROSS
THE REGION FRIDAY.  LIFT AND INSTABILITY AHEAD OF THE UPPER LEVEL
TROUGH MAY ALLOW FOR A FEW SHOWERS AND PERHAPS A THUNDERSTORM OR TWO
TO POP OVER THE CENTRAL OREGON CASCADES ACROSS EASTERN LANE AND LINN
COUNTIES FRIDAY AFTERNOON AND EVENING...BUT THE BEST CHANCE FOR
THUNDERSTORMS REMAIN EAST OF THE CASCADES.

THE FRONT WILL MOVE ACROSS THE AREA FRIDAY NIGHT AND EXPECT AROUND
0.25 TO 0.5 INCH OF RAIN FOR THE HIGHER TERRAIN AND LESS THAN 0.15
FOR THE INTERIOR VALLEYS. SHOWERS WILL LINGER SATURDAY MORNING...BUT
MAINLY FOR THE HIGHER TERRAIN. SNOW LEVELS WILL LOWER TO AROUND 4500
FEET SATURDAY MORNING...BUT ANY SNOW ACCUMULATIONS SHOULD BE LIGHT.
ANOTHER UPPER RIDGE WILL BUILD SATURDAY NIGHT AND STEER AN
APPROACHING WARM FRONT NORTH OF THE AREA. TJ

LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY NIGHT
THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING DRY
CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...PATCHY IFR AND LIFR FOG HAS DEVELOPED ALONG THE COAST
AND INLAND VALLEYS EARLY THIS MORNING UNDER HIGH PRESSURE. EXPECT
CONDITIONS TO IMPROVE TO VFR AFTER 20Z THU FOR MOST LOCATIONS...
WITH FOG AND LOW STRATUS RETURNING BETWEEN 03-06Z FRI ALONG THE
COAST...AND CLOSER TO 06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...PATCHY SHALLOW IFR FOG/LOW STRATUS WILL
CONTINUE TO IMPACT MAINLY WESTERN APPROACHES INCLUDING KPDX
THROUGH AT LEAST 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 04-06Z TONIGHT/FRIDAY MORNING. /27
&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64/27
&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY FOR THE WILLAMETTE VALLEY INCLUDING THE
     PORTLAND METRO AREA THROUGH 11 AM THIS MORNING.
WA...DENSE FOG ADVISORY FOR THE GREATER VANCOUVER AREA THROUGH
     11 AM THIS MORNING.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
TO 11 AM PDT THIS MORNING.

&&
$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 261151
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
451 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.
&&

.UPDATE...FOG IS RAPIDLY DEVELOPING IN THE INTERIOR VALLEYS THIS
MORNING. SURFACE OBSERVATIONS AND WEB CAMERAS SHOW THAT THE
VISIBILITY IS RESTRICTED TO LESS THAN A QUARTER OF A MILE IN MANY
AREAS AND HAVE MADE A QUICK UPDATE TO ISSUE A DENSE FOG ADVISORY FOR
THE WILLAMETTE VALLEY. THE VISIBILITIES WILL GO UP AND DOWN...BUT
ARE ESPECIALLY BAD IN THE PORTLAND METRO AREA AND ALONG I-5.TJ

PREVIOUS SHORT TERM...TODAY THROUGH SATURDAY NIGHT...SOME HIGH
CLOUDS LINGER ACROSS EXTREME SW WASHINGTON AND EXTREME NW OREGON
EARLY THIS MORNING AS A WARM FRONT MOVES INLAND FAR NORTH OF THE
AREA. THE SKIES HAVE CLEARED SOUTH OF THE PORTLAND METRO AREA
OVERNIGHT. LINGERING SURFACE MOISTURE...LIGHT WINDS...AND THE
CLEARING SKIES HAVE RESULTED IN RADIATION FOG DEVELOPING IN MANY OF
THE INTERIOR VALLEYS. THE CLOUDS THAT ARE MOVING ACROSS THE NORTHERN
AREA HAVE RESTRICTED RADIATION COOLING SO FAR...BUT ARE THIN ENOUGH
THAT IT IS LIKELY FOR MOST AREAS INLAND VALLEYS TO HAVE FOG BY
SUNRISE.

HIGH PRESSURE WILL CONTINUE TO BUILD TODAY AND PUSH THE FRONT AND
ASSOCIATED CLOUDS NORTH OF THE AREA. SUNSHINE SHOULD HEAT THE SURFACE
AND PROVIDE ENOUGH MIXING FOR THE FOG TO CLEAR LATER THIS MORNING.
SUNSHINE COMBINED WITH WARM AIR ADVECTION IN THE WAKE OF THE WARM
FRONT WILL RESULT IN TODAY POSSIBLY BEING THE WARMEST DAY OF THE YEAR
SO FAR FOR THE INTERIOR. IF THE FOG BEHAVES AND CLEARS THIS MORNING
THEN TEMPERATURES SHOULD WARM INTO THE LOW TO MID 70S FOR THE
WILLAMETTE VALLEY. WEAK ONSHORE FLOW WILL MODERATE THE COASTAL
TEMPERATURES WHERE THEY SHOULD PEAK IN THE LOW TO MID 60S.

THE UPPER RIDGE SHOULD MOVE FURTHER INLAND TONIGHT ALLOWING A COLD
FRONT THAT IS CURRENTLY AROUND 750 MILES OFFSHORE TO NEAR THE PACIFIC
NW. THERE MAY BE SOME HIGH CLOUDS THAT WILL STREAM OVER THE AREA
AHEAD OF THE FRONT...BUT THINK THESE WILL BE VERY THIN AND BARELY
LIMIT RADIATION COOLING. SURFACE MOISTURE WILL BE LESS AVAILABLE
TONIGHT...BUT LIGHT ONSHORE WINDS MAY BRING ENOUGH MARINE MOISTURE
INLAND FOR SOME VALLEY FOG TO FORM LATE TONIGHT.

THE COLD FRONT AND A CLOSELY FOLLOWING UPPER TROUGH WILL MOVE ACROSS
THE REGION FRIDAY.  LIFT AND INSTABILITY AHEAD OF THE UPPER LEVEL
TROUGH MAY ALLOW FOR A FEW SHOWERS AND PERHAPS A THUNDERSTORM OR TWO
TO POP OVER THE CENTRAL OREGON CASCADES ACROSS EASTERN LANE AND LINN
COUNTIES FRIDAY AFTERNOON AND EVENING...BUT THE BEST CHANCE FOR
THUNDERSTORMS REMAIN EAST OF THE CASCADES.

THE FRONT WILL MOVE ACROSS THE AREA FRIDAY NIGHT AND EXPECT AROUND
0.25 TO 0.5 INCH OF RAIN FOR THE HIGHER TERRAIN AND LESS THAN 0.15
FOR THE INTERIOR VALLEYS. SHOWERS WILL LINGER SATURDAY MORNING...BUT
MAINLY FOR THE HIGHER TERRAIN. SNOW LEVELS WILL LOWER TO AROUND 4500
FEET SATURDAY MORNING...BUT ANY SNOW ACCUMULATIONS SHOULD BE LIGHT.
ANOTHER UPPER RIDGE WILL BUILD SATURDAY NIGHT AND STEER AN
APPROACHING WARM FRONT NORTH OF THE AREA. TJ

LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY NIGHT
THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING DRY
CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...PATCHY IFR AND LIFR FOG HAS DEVELOPED ALONG THE COAST
AND INLAND VALLEYS EARLY THIS MORNING UNDER HIGH PRESSURE. EXPECT
CONDITIONS TO IMPROVE TO VFR AFTER 20Z THU FOR MOST LOCATIONS...
WITH FOG AND LOW STRATUS RETURNING BETWEEN 03-06Z FRI ALONG THE
COAST...AND CLOSER TO 06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...PATCHY SHALLOW IFR FOG/LOW STRATUS WILL
CONTINUE TO IMPACT MAINLY WESTERN APPROACHES INCLUDING KPDX
THROUGH AT LEAST 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 04-06Z TONIGHT/FRIDAY MORNING. /27
&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64/27
&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY FOR THE WILLAMETTE VALLEY INCLUDING THE
     PORTLAND METRO AREA THROUGH 11 AM THIS MORNING.
WA...DENSE FOG ADVISORY FOR THE GREATER VANCOUVER AREA THROUGH
     11 AM THIS MORNING.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
TO 11 AM PDT THIS MORNING.

&&
$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 261151
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
451 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.
&&

.UPDATE...FOG IS RAPIDLY DEVELOPING IN THE INTERIOR VALLEYS THIS
MORNING. SURFACE OBSERVATIONS AND WEB CAMERAS SHOW THAT THE
VISIBILITY IS RESTRICTED TO LESS THAN A QUARTER OF A MILE IN MANY
AREAS AND HAVE MADE A QUICK UPDATE TO ISSUE A DENSE FOG ADVISORY FOR
THE WILLAMETTE VALLEY. THE VISIBILITIES WILL GO UP AND DOWN...BUT
ARE ESPECIALLY BAD IN THE PORTLAND METRO AREA AND ALONG I-5.TJ

PREVIOUS SHORT TERM...TODAY THROUGH SATURDAY NIGHT...SOME HIGH
CLOUDS LINGER ACROSS EXTREME SW WASHINGTON AND EXTREME NW OREGON
EARLY THIS MORNING AS A WARM FRONT MOVES INLAND FAR NORTH OF THE
AREA. THE SKIES HAVE CLEARED SOUTH OF THE PORTLAND METRO AREA
OVERNIGHT. LINGERING SURFACE MOISTURE...LIGHT WINDS...AND THE
CLEARING SKIES HAVE RESULTED IN RADIATION FOG DEVELOPING IN MANY OF
THE INTERIOR VALLEYS. THE CLOUDS THAT ARE MOVING ACROSS THE NORTHERN
AREA HAVE RESTRICTED RADIATION COOLING SO FAR...BUT ARE THIN ENOUGH
THAT IT IS LIKELY FOR MOST AREAS INLAND VALLEYS TO HAVE FOG BY
SUNRISE.

HIGH PRESSURE WILL CONTINUE TO BUILD TODAY AND PUSH THE FRONT AND
ASSOCIATED CLOUDS NORTH OF THE AREA. SUNSHINE SHOULD HEAT THE SURFACE
AND PROVIDE ENOUGH MIXING FOR THE FOG TO CLEAR LATER THIS MORNING.
SUNSHINE COMBINED WITH WARM AIR ADVECTION IN THE WAKE OF THE WARM
FRONT WILL RESULT IN TODAY POSSIBLY BEING THE WARMEST DAY OF THE YEAR
SO FAR FOR THE INTERIOR. IF THE FOG BEHAVES AND CLEARS THIS MORNING
THEN TEMPERATURES SHOULD WARM INTO THE LOW TO MID 70S FOR THE
WILLAMETTE VALLEY. WEAK ONSHORE FLOW WILL MODERATE THE COASTAL
TEMPERATURES WHERE THEY SHOULD PEAK IN THE LOW TO MID 60S.

THE UPPER RIDGE SHOULD MOVE FURTHER INLAND TONIGHT ALLOWING A COLD
FRONT THAT IS CURRENTLY AROUND 750 MILES OFFSHORE TO NEAR THE PACIFIC
NW. THERE MAY BE SOME HIGH CLOUDS THAT WILL STREAM OVER THE AREA
AHEAD OF THE FRONT...BUT THINK THESE WILL BE VERY THIN AND BARELY
LIMIT RADIATION COOLING. SURFACE MOISTURE WILL BE LESS AVAILABLE
TONIGHT...BUT LIGHT ONSHORE WINDS MAY BRING ENOUGH MARINE MOISTURE
INLAND FOR SOME VALLEY FOG TO FORM LATE TONIGHT.

THE COLD FRONT AND A CLOSELY FOLLOWING UPPER TROUGH WILL MOVE ACROSS
THE REGION FRIDAY.  LIFT AND INSTABILITY AHEAD OF THE UPPER LEVEL
TROUGH MAY ALLOW FOR A FEW SHOWERS AND PERHAPS A THUNDERSTORM OR TWO
TO POP OVER THE CENTRAL OREGON CASCADES ACROSS EASTERN LANE AND LINN
COUNTIES FRIDAY AFTERNOON AND EVENING...BUT THE BEST CHANCE FOR
THUNDERSTORMS REMAIN EAST OF THE CASCADES.

THE FRONT WILL MOVE ACROSS THE AREA FRIDAY NIGHT AND EXPECT AROUND
0.25 TO 0.5 INCH OF RAIN FOR THE HIGHER TERRAIN AND LESS THAN 0.15
FOR THE INTERIOR VALLEYS. SHOWERS WILL LINGER SATURDAY MORNING...BUT
MAINLY FOR THE HIGHER TERRAIN. SNOW LEVELS WILL LOWER TO AROUND 4500
FEET SATURDAY MORNING...BUT ANY SNOW ACCUMULATIONS SHOULD BE LIGHT.
ANOTHER UPPER RIDGE WILL BUILD SATURDAY NIGHT AND STEER AN
APPROACHING WARM FRONT NORTH OF THE AREA. TJ

LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY NIGHT
THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING DRY
CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...PATCHY IFR AND LIFR FOG HAS DEVELOPED ALONG THE COAST
AND INLAND VALLEYS EARLY THIS MORNING UNDER HIGH PRESSURE. EXPECT
CONDITIONS TO IMPROVE TO VFR AFTER 20Z THU FOR MOST LOCATIONS...
WITH FOG AND LOW STRATUS RETURNING BETWEEN 03-06Z FRI ALONG THE
COAST...AND CLOSER TO 06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...PATCHY SHALLOW IFR FOG/LOW STRATUS WILL
CONTINUE TO IMPACT MAINLY WESTERN APPROACHES INCLUDING KPDX
THROUGH AT LEAST 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 04-06Z TONIGHT/FRIDAY MORNING. /27
&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64/27
&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY FOR THE WILLAMETTE VALLEY INCLUDING THE
     PORTLAND METRO AREA THROUGH 11 AM THIS MORNING.
WA...DENSE FOG ADVISORY FOR THE GREATER VANCOUVER AREA THROUGH
     11 AM THIS MORNING.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
TO 11 AM PDT THIS MORNING.

&&
$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KOTX 261137
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
437 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 261137
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
437 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 261137
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
437 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 261137
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
437 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 261137
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
437 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KOTX 261137
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
437 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
12Z TAFS: An upper level ridge is building over the region
however residual moisture advecting into the area will continue to
enhance over a departing warm front for scattered showers between
12Z and 18Z in the KGEG area with occasional MVFR ceilings. There
is a chance of IFR conditions as low level upslope stratus fields
develop over the KGEG area TAF sites but thick mid level clouds
will tend to prevent this from occurring except for brief periods
between 14Z and 18Z. The KMWH TAF site will be subject to morning
fog with possible IFR or LIFR conditions...with surface
observations reporting FG nearby at KEPH at 11Z. After 18Z VFR
conditions are expected at all TAF sites through 12Z Friday. /MJF

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KSEW 261035
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
330 AM PDT THU MAR 26 2015

.SYNOPSIS...AN UPPER RIDGE WILL BE OVER THE AREA TODAY FOR DRY
WEATHER. A FRONT WILL BRING RAIN LATER FRIDAY AND FRIDAY NIGHT.
ONSHORE FLOW WILL PREVAIL OVER THE WEEKEND. ANOTHER FRONT WILL
ARRIVE AROUND MONDAY NIGHT.

&&

.SHORT TERM...AN UPPER RIDGE WILL BUILD OVER THE AREA TODAY. THERE
MIGHT BE A FEW LINGERING SPOTS OF RAIN OVER THE CASCADES OR FAR
NORTH PART OF THE FORECAST AREA EARLY. OTHERWISE...TODAY SHOULD BE
DRY AND MILD. HIGHS WILL BE ABOUT 10 DEGREES ABOVE NORMAL WITH 60S
MOST AREAS.

THE UPPER RIDGE WILL SHIFT INLAND TONIGHT AS A FRONT APPROACHES. THE
FRONT WILL BRING RAIN TO THE COAST FRIDAY AFTERNOON...THEN TO THE
INTERIOR IN THE EVENING. RAIN SHOULD CHANGE TO SHOWERS AFTER
MIDNIGHT FRIDAY NIGHT WITH MOST AREAS DRY BY DAYBREAK SATURDAY
BEHIND THE FRONT.

WESTERLY FLOW ALOFT WILL PREVAIL SATURDAY WITH LOW LEVEL ONSHORE
FLOW. MOST OF THE AREA SHOULD BE CLOUDY BUT DRY. SOME SHOWERS WILL
LIKELY LINGER OVER THE CASCADES. THERE WILL ALSO BE AN INCREASING
CHANCE OF RAIN OVER THE COAST...OLYMPICS AND NORTHWEST INTERIOR AS A
WARM FRONT BRUSHES THE NORTHWEST PART OF THE STATE. SCHNEIDER

.LONG TERM...A BROAD UPPER RIDGE WILL BE OVER THE AREA SUNDAY.
MOISTURE COMING OVER THE TOP OF THE RIDGE WILL KEEP A CHANCE OF RAIN
IN THE FORECAST...MAINLY COAST AND NORTH. A FRONT WILL MOVE INTO THE
AREA MONDAY EVENING OR SO FOR ANOTHER SHOT OF RAIN ALL AREAS MONDAY
NIGHT. MODELS ARE IN FAIR AGREEMENT WITH THIS.

RAIN WILL REMAIN LIKELY TUESDAY AS ANOTHER UPPER LEVEL DISTURBANCE
MOVES INTO THE AREA. HIGHS WILL COOL TO NEAR NORMAL TUESDAY BEHIND
THE MONDAY NIGHT FRONT. AN UPPER TROUGH WILL MOVE OVER THE PACIFIC
NORTHWEST ON WEDNESDAY WHICH SHOULD RESULT IN COOL SHOWERY WEATHER.
SCHNEIDER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...THE LAST REMNANT OF RAIN WILL SLIDE NORTH INTO BRITISH
COLUMBIA THIS MORNING LEAVING A MOIST AND STABLE AIR MASS. CEILINGS
WILL REMAIN GENERALLY MVFR THROUGH THE MORNING OVER MUCH OF THE
INTERIOR. LOWER CEILINGS...IFR AND EVEN LIFR...OVER THE COAST AND
SOUTH INTERIOR WILL LINGER THROUGH MID MORNING. WEAK HIGH PRESSURE
WILL BUILD OVER THE REGION TODAY...BRINGING DRY AND STABLE
CONDITIONS THROUGH THIS EVENING. EXPECT CEILINGS ALL AREAS TO LIFT
TO VFR LEVELS BY 18Z...WITH ALL BUT THE COAST SCATTERING OUT DURING
THE AFTERNOON.

KSEA...MVFR CIGS WILL LINGER THROUGH DAY BREAK AND IMPROVE TO VFR BY
17Z. SOUTH WINDS 4 TO 6 KT.

&&

.MARINE...WEAK HIGH PRESSURE WILL BUILD OVER THE AREA TODAY WITH
GENERALLY LIGHT SOUTHERLY WINDS. A COLD FRONT WILL APPROACH THE
COASTAL WATERS FRIDAY AFTERNOON AND MOVE INLAND THROUGH THE EVENING
HOURS. EXPECT INCREASING SOUTHERLY WINDS AHEAD OF THE FRONT OVER THE
COASTAL WATERS FRIDAY AFTERNOON...BECOMING WESTERLY FRIDAY NIGHT.
OVER THE INTERIOR...SOUTHERLIES WILL PICK UP MOST WATERS FRIDAY
EVENING WITH THE STRONGEST WINDS OCCURING WITH THE WESTERLY PUSH
THROUGH THE STRAIT FRIDAY NIGHT...LIKELY REACHING SMALL CRAFT
ADVISORY LEVELS OVER THE CENTRAL AND EAST STRAIT. HIGH PRESSURE WILL
RETURN TO AREA WATERS THROUGH THE WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...NONE.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML








000
FXUS66 KSEW 261035
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
330 AM PDT THU MAR 26 2015

.SYNOPSIS...AN UPPER RIDGE WILL BE OVER THE AREA TODAY FOR DRY
WEATHER. A FRONT WILL BRING RAIN LATER FRIDAY AND FRIDAY NIGHT.
ONSHORE FLOW WILL PREVAIL OVER THE WEEKEND. ANOTHER FRONT WILL
ARRIVE AROUND MONDAY NIGHT.

&&

.SHORT TERM...AN UPPER RIDGE WILL BUILD OVER THE AREA TODAY. THERE
MIGHT BE A FEW LINGERING SPOTS OF RAIN OVER THE CASCADES OR FAR
NORTH PART OF THE FORECAST AREA EARLY. OTHERWISE...TODAY SHOULD BE
DRY AND MILD. HIGHS WILL BE ABOUT 10 DEGREES ABOVE NORMAL WITH 60S
MOST AREAS.

THE UPPER RIDGE WILL SHIFT INLAND TONIGHT AS A FRONT APPROACHES. THE
FRONT WILL BRING RAIN TO THE COAST FRIDAY AFTERNOON...THEN TO THE
INTERIOR IN THE EVENING. RAIN SHOULD CHANGE TO SHOWERS AFTER
MIDNIGHT FRIDAY NIGHT WITH MOST AREAS DRY BY DAYBREAK SATURDAY
BEHIND THE FRONT.

WESTERLY FLOW ALOFT WILL PREVAIL SATURDAY WITH LOW LEVEL ONSHORE
FLOW. MOST OF THE AREA SHOULD BE CLOUDY BUT DRY. SOME SHOWERS WILL
LIKELY LINGER OVER THE CASCADES. THERE WILL ALSO BE AN INCREASING
CHANCE OF RAIN OVER THE COAST...OLYMPICS AND NORTHWEST INTERIOR AS A
WARM FRONT BRUSHES THE NORTHWEST PART OF THE STATE. SCHNEIDER

.LONG TERM...A BROAD UPPER RIDGE WILL BE OVER THE AREA SUNDAY.
MOISTURE COMING OVER THE TOP OF THE RIDGE WILL KEEP A CHANCE OF RAIN
IN THE FORECAST...MAINLY COAST AND NORTH. A FRONT WILL MOVE INTO THE
AREA MONDAY EVENING OR SO FOR ANOTHER SHOT OF RAIN ALL AREAS MONDAY
NIGHT. MODELS ARE IN FAIR AGREEMENT WITH THIS.

RAIN WILL REMAIN LIKELY TUESDAY AS ANOTHER UPPER LEVEL DISTURBANCE
MOVES INTO THE AREA. HIGHS WILL COOL TO NEAR NORMAL TUESDAY BEHIND
THE MONDAY NIGHT FRONT. AN UPPER TROUGH WILL MOVE OVER THE PACIFIC
NORTHWEST ON WEDNESDAY WHICH SHOULD RESULT IN COOL SHOWERY WEATHER.
SCHNEIDER

&&

.HYDROLOGY...FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...THE LAST REMNANT OF RAIN WILL SLIDE NORTH INTO BRITISH
COLUMBIA THIS MORNING LEAVING A MOIST AND STABLE AIR MASS. CEILINGS
WILL REMAIN GENERALLY MVFR THROUGH THE MORNING OVER MUCH OF THE
INTERIOR. LOWER CEILINGS...IFR AND EVEN LIFR...OVER THE COAST AND
SOUTH INTERIOR WILL LINGER THROUGH MID MORNING. WEAK HIGH PRESSURE
WILL BUILD OVER THE REGION TODAY...BRINGING DRY AND STABLE
CONDITIONS THROUGH THIS EVENING. EXPECT CEILINGS ALL AREAS TO LIFT
TO VFR LEVELS BY 18Z...WITH ALL BUT THE COAST SCATTERING OUT DURING
THE AFTERNOON.

KSEA...MVFR CIGS WILL LINGER THROUGH DAY BREAK AND IMPROVE TO VFR BY
17Z. SOUTH WINDS 4 TO 6 KT.

&&

.MARINE...WEAK HIGH PRESSURE WILL BUILD OVER THE AREA TODAY WITH
GENERALLY LIGHT SOUTHERLY WINDS. A COLD FRONT WILL APPROACH THE
COASTAL WATERS FRIDAY AFTERNOON AND MOVE INLAND THROUGH THE EVENING
HOURS. EXPECT INCREASING SOUTHERLY WINDS AHEAD OF THE FRONT OVER THE
COASTAL WATERS FRIDAY AFTERNOON...BECOMING WESTERLY FRIDAY NIGHT.
OVER THE INTERIOR...SOUTHERLIES WILL PICK UP MOST WATERS FRIDAY
EVENING WITH THE STRONGEST WINDS OCCURING WITH THE WESTERLY PUSH
THROUGH THE STRAIT FRIDAY NIGHT...LIKELY REACHING SMALL CRAFT
ADVISORY LEVELS OVER THE CENTRAL AND EAST STRAIT. HIGH PRESSURE WILL
RETURN TO AREA WATERS THROUGH THE WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...NONE.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML







000
FXUS66 KPQR 260947
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
247 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.
&&

.SHORT TERM...TODAY THROUGH SATURDAY NIGHT...SOME HIGH CLOUDS LINGER
ACROSS EXTREME SW WASHINGTON AND EXTREME NW OREGON EARLY THIS MORNING
AS A WARM FRONT MOVES INLAND FAR NORTH OF THE AREA. THE SKIES HAVE
CLEARED SOUTH OF THE PORTLAND METRO AREA OVERNIGHT. LINGERING SURFACE
MOISTURE...LIGHT WINDS...AND THE CLEARING SKIES HAVE RESULTED IN
RADIATION FOG DEVELOPING IN MANY OF THE INTERIOR VALLEYS. THE CLOUDS
THAT ARE MOVING ACROSS THE NORTHERN AREA HAVE RESTRICTED RADIATION
COOLING SO FAR...BUT ARE THIN ENOUGH THAT IT IS LIKELY FOR MOST AREAS
INLAND VALLEYS TO HAVE FOG BY SUNRISE.

HIGH PRESSURE WILL CONTINUE TO BUILD TODAY AND PUSH THE FRONT AND
ASSOCIATED CLOUDS NORTH OF THE AREA. SUNSHINE SHOULD HEAT THE SURFACE
AND PROVIDE ENOUGH MIXING FOR THE FOG TO CLEAR LATER THIS MORNING.
SUNSHINE COMBINED WITH WARM AIR ADVECTION IN THE WAKE OF THE WARM
FRONT WILL RESULT IN TODAY POSSIBLY BEING THE WARMEST DAY OF THE YEAR
SO FAR FOR THE INTERIOR. IF THE FOG BEHAVES AND CLEARS THIS MORNING
THEN TEMPERATURES SHOULD WARM INTO THE LOW TO MID 70S FOR THE
WILLAMETTE VALLEY. WEAK ONSHORE FLOW WILL MODERATE THE COASTAL
TEMPERATURES WHERE THEY SHOULD PEAK IN THE LOW TO MID 60S.

THE UPPER RIDGE SHOULD MOVE FURTHER INLAND TONIGHT ALLOWING A COLD
FRONT THAT IS CURRENTLY AROUND 750 MILES OFFSHORE TO NEAR THE PACIFIC
NW. THERE MAY BE SOME HIGH CLOUDS THAT WILL STREAM OVER THE AREA
AHEAD OF THE FRONT...BUT THINK THESE WILL BE VERY THIN AND BARELY
LIMIT RADIATION COOLING. SURFACE MOISTURE WILL BE LESS AVAILABLE
TONIGHT...BUT LIGHT ONSHORE WINDS MAY BRING ENOUGH MARINE MOISTURE
INLAND FOR SOME VALLEY FOG TO FORM LATE TONIGHT.

THE COLD FRONT AND A CLOSELY FOLLOWING UPPER TROUGH WILL MOVE ACROSS
THE REGION FRIDAY.  LIFT AND INSTABILITY AHEAD OF THE UPPER LEVEL
TROUGH MAY ALLOW FOR A FEW SHOWERS AND PERHAPS A THUNDERSTORM OR TWO
TO POP OVER THE CENTRAL OREGON CASCADES ACROSS EASTERN LANE AND LINN
COUNTIES FRIDAY AFTERNOON AND EVENING...BUT THE BEST CHANCE FOR
THUNDERSTORMS REMAIN EAST OF THE CASCADES.

THE FRONT WILL MOVE ACROSS THE AREA FRIDAY NIGHT AND EXPECT AROUND
0.25 TO 0.5 INCH OF RAIN FOR THE HIGHER TERRAIN AND LESS THAN 0.15
FOR THE INTERIOR VALLEYS. SHOWERS WILL LINGER SATURDAY MORNING...BUT
MAINLY FOR THE HIGHER TERRAIN. SNOW LEVELS WILL LOWER TO AROUND 4500
FEET SATURDAY MORNING...BUT ANY SNOW ACCUMULATIONS SHOULD BE LIGHT.
ANOTHER UPPER RIDGE WILL BUILD SATURDAY NIGHT AND STEER AN
APPROACHING WARM FRONT NORTH OF THE AREA. TJ

LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY NIGHT
THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING DRY
CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...PATCHY IFR AND LIFR FOG HAS DEVELOPED ALONG THE COAST
AND INLAND VALLEYS EARLY THIS MORNING UNDER HIGH PRESSURE. EXPECT
CONDITIONS TO IMPROVE TO VFR AFTER 20Z THU FOR MOST LOCATIONS...
WITH FOG AND LOW STRATUS RETURNING BETWEEN 03-06Z FRI ALONG THE
COAST...AND CLOSER TO 06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...PATCHY SHALLOW IFR FOG/LOW STRATUS WILL
CONTINUE TO IMPACT MAINLY WESTERN APPROACHES INCLUDING KPDX
THROUGH AT LEAST 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 04-06Z TONIGHT/FRIDAY MORNING. /27
&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64/27
&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
     TO 11 AM PDT THIS MORNING.
&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 260947
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
247 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.
&&

.SHORT TERM...TODAY THROUGH SATURDAY NIGHT...SOME HIGH CLOUDS LINGER
ACROSS EXTREME SW WASHINGTON AND EXTREME NW OREGON EARLY THIS MORNING
AS A WARM FRONT MOVES INLAND FAR NORTH OF THE AREA. THE SKIES HAVE
CLEARED SOUTH OF THE PORTLAND METRO AREA OVERNIGHT. LINGERING SURFACE
MOISTURE...LIGHT WINDS...AND THE CLEARING SKIES HAVE RESULTED IN
RADIATION FOG DEVELOPING IN MANY OF THE INTERIOR VALLEYS. THE CLOUDS
THAT ARE MOVING ACROSS THE NORTHERN AREA HAVE RESTRICTED RADIATION
COOLING SO FAR...BUT ARE THIN ENOUGH THAT IT IS LIKELY FOR MOST AREAS
INLAND VALLEYS TO HAVE FOG BY SUNRISE.

HIGH PRESSURE WILL CONTINUE TO BUILD TODAY AND PUSH THE FRONT AND
ASSOCIATED CLOUDS NORTH OF THE AREA. SUNSHINE SHOULD HEAT THE SURFACE
AND PROVIDE ENOUGH MIXING FOR THE FOG TO CLEAR LATER THIS MORNING.
SUNSHINE COMBINED WITH WARM AIR ADVECTION IN THE WAKE OF THE WARM
FRONT WILL RESULT IN TODAY POSSIBLY BEING THE WARMEST DAY OF THE YEAR
SO FAR FOR THE INTERIOR. IF THE FOG BEHAVES AND CLEARS THIS MORNING
THEN TEMPERATURES SHOULD WARM INTO THE LOW TO MID 70S FOR THE
WILLAMETTE VALLEY. WEAK ONSHORE FLOW WILL MODERATE THE COASTAL
TEMPERATURES WHERE THEY SHOULD PEAK IN THE LOW TO MID 60S.

THE UPPER RIDGE SHOULD MOVE FURTHER INLAND TONIGHT ALLOWING A COLD
FRONT THAT IS CURRENTLY AROUND 750 MILES OFFSHORE TO NEAR THE PACIFIC
NW. THERE MAY BE SOME HIGH CLOUDS THAT WILL STREAM OVER THE AREA
AHEAD OF THE FRONT...BUT THINK THESE WILL BE VERY THIN AND BARELY
LIMIT RADIATION COOLING. SURFACE MOISTURE WILL BE LESS AVAILABLE
TONIGHT...BUT LIGHT ONSHORE WINDS MAY BRING ENOUGH MARINE MOISTURE
INLAND FOR SOME VALLEY FOG TO FORM LATE TONIGHT.

THE COLD FRONT AND A CLOSELY FOLLOWING UPPER TROUGH WILL MOVE ACROSS
THE REGION FRIDAY.  LIFT AND INSTABILITY AHEAD OF THE UPPER LEVEL
TROUGH MAY ALLOW FOR A FEW SHOWERS AND PERHAPS A THUNDERSTORM OR TWO
TO POP OVER THE CENTRAL OREGON CASCADES ACROSS EASTERN LANE AND LINN
COUNTIES FRIDAY AFTERNOON AND EVENING...BUT THE BEST CHANCE FOR
THUNDERSTORMS REMAIN EAST OF THE CASCADES.

THE FRONT WILL MOVE ACROSS THE AREA FRIDAY NIGHT AND EXPECT AROUND
0.25 TO 0.5 INCH OF RAIN FOR THE HIGHER TERRAIN AND LESS THAN 0.15
FOR THE INTERIOR VALLEYS. SHOWERS WILL LINGER SATURDAY MORNING...BUT
MAINLY FOR THE HIGHER TERRAIN. SNOW LEVELS WILL LOWER TO AROUND 4500
FEET SATURDAY MORNING...BUT ANY SNOW ACCUMULATIONS SHOULD BE LIGHT.
ANOTHER UPPER RIDGE WILL BUILD SATURDAY NIGHT AND STEER AN
APPROACHING WARM FRONT NORTH OF THE AREA. TJ

LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY NIGHT
THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING DRY
CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...PATCHY IFR AND LIFR FOG HAS DEVELOPED ALONG THE COAST
AND INLAND VALLEYS EARLY THIS MORNING UNDER HIGH PRESSURE. EXPECT
CONDITIONS TO IMPROVE TO VFR AFTER 20Z THU FOR MOST LOCATIONS...
WITH FOG AND LOW STRATUS RETURNING BETWEEN 03-06Z FRI ALONG THE
COAST...AND CLOSER TO 06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...PATCHY SHALLOW IFR FOG/LOW STRATUS WILL
CONTINUE TO IMPACT MAINLY WESTERN APPROACHES INCLUDING KPDX
THROUGH AT LEAST 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 04-06Z TONIGHT/FRIDAY MORNING. /27
&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64/27
&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
     TO 11 AM PDT THIS MORNING.
&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KPQR 260947
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
247 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.
&&

.SHORT TERM...TODAY THROUGH SATURDAY NIGHT...SOME HIGH CLOUDS LINGER
ACROSS EXTREME SW WASHINGTON AND EXTREME NW OREGON EARLY THIS MORNING
AS A WARM FRONT MOVES INLAND FAR NORTH OF THE AREA. THE SKIES HAVE
CLEARED SOUTH OF THE PORTLAND METRO AREA OVERNIGHT. LINGERING SURFACE
MOISTURE...LIGHT WINDS...AND THE CLEARING SKIES HAVE RESULTED IN
RADIATION FOG DEVELOPING IN MANY OF THE INTERIOR VALLEYS. THE CLOUDS
THAT ARE MOVING ACROSS THE NORTHERN AREA HAVE RESTRICTED RADIATION
COOLING SO FAR...BUT ARE THIN ENOUGH THAT IT IS LIKELY FOR MOST AREAS
INLAND VALLEYS TO HAVE FOG BY SUNRISE.

HIGH PRESSURE WILL CONTINUE TO BUILD TODAY AND PUSH THE FRONT AND
ASSOCIATED CLOUDS NORTH OF THE AREA. SUNSHINE SHOULD HEAT THE SURFACE
AND PROVIDE ENOUGH MIXING FOR THE FOG TO CLEAR LATER THIS MORNING.
SUNSHINE COMBINED WITH WARM AIR ADVECTION IN THE WAKE OF THE WARM
FRONT WILL RESULT IN TODAY POSSIBLY BEING THE WARMEST DAY OF THE YEAR
SO FAR FOR THE INTERIOR. IF THE FOG BEHAVES AND CLEARS THIS MORNING
THEN TEMPERATURES SHOULD WARM INTO THE LOW TO MID 70S FOR THE
WILLAMETTE VALLEY. WEAK ONSHORE FLOW WILL MODERATE THE COASTAL
TEMPERATURES WHERE THEY SHOULD PEAK IN THE LOW TO MID 60S.

THE UPPER RIDGE SHOULD MOVE FURTHER INLAND TONIGHT ALLOWING A COLD
FRONT THAT IS CURRENTLY AROUND 750 MILES OFFSHORE TO NEAR THE PACIFIC
NW. THERE MAY BE SOME HIGH CLOUDS THAT WILL STREAM OVER THE AREA
AHEAD OF THE FRONT...BUT THINK THESE WILL BE VERY THIN AND BARELY
LIMIT RADIATION COOLING. SURFACE MOISTURE WILL BE LESS AVAILABLE
TONIGHT...BUT LIGHT ONSHORE WINDS MAY BRING ENOUGH MARINE MOISTURE
INLAND FOR SOME VALLEY FOG TO FORM LATE TONIGHT.

THE COLD FRONT AND A CLOSELY FOLLOWING UPPER TROUGH WILL MOVE ACROSS
THE REGION FRIDAY.  LIFT AND INSTABILITY AHEAD OF THE UPPER LEVEL
TROUGH MAY ALLOW FOR A FEW SHOWERS AND PERHAPS A THUNDERSTORM OR TWO
TO POP OVER THE CENTRAL OREGON CASCADES ACROSS EASTERN LANE AND LINN
COUNTIES FRIDAY AFTERNOON AND EVENING...BUT THE BEST CHANCE FOR
THUNDERSTORMS REMAIN EAST OF THE CASCADES.

THE FRONT WILL MOVE ACROSS THE AREA FRIDAY NIGHT AND EXPECT AROUND
0.25 TO 0.5 INCH OF RAIN FOR THE HIGHER TERRAIN AND LESS THAN 0.15
FOR THE INTERIOR VALLEYS. SHOWERS WILL LINGER SATURDAY MORNING...BUT
MAINLY FOR THE HIGHER TERRAIN. SNOW LEVELS WILL LOWER TO AROUND 4500
FEET SATURDAY MORNING...BUT ANY SNOW ACCUMULATIONS SHOULD BE LIGHT.
ANOTHER UPPER RIDGE WILL BUILD SATURDAY NIGHT AND STEER AN
APPROACHING WARM FRONT NORTH OF THE AREA. TJ

LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY NIGHT
THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING DRY
CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...PATCHY IFR AND LIFR FOG HAS DEVELOPED ALONG THE COAST
AND INLAND VALLEYS EARLY THIS MORNING UNDER HIGH PRESSURE. EXPECT
CONDITIONS TO IMPROVE TO VFR AFTER 20Z THU FOR MOST LOCATIONS...
WITH FOG AND LOW STRATUS RETURNING BETWEEN 03-06Z FRI ALONG THE
COAST...AND CLOSER TO 06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...PATCHY SHALLOW IFR FOG/LOW STRATUS WILL
CONTINUE TO IMPACT MAINLY WESTERN APPROACHES INCLUDING KPDX
THROUGH AT LEAST 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 04-06Z TONIGHT/FRIDAY MORNING. /27
&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64/27
&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
     TO 11 AM PDT THIS MORNING.
&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 260947
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
247 AM PDT THU MAR 26 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.
&&

.SHORT TERM...TODAY THROUGH SATURDAY NIGHT...SOME HIGH CLOUDS LINGER
ACROSS EXTREME SW WASHINGTON AND EXTREME NW OREGON EARLY THIS MORNING
AS A WARM FRONT MOVES INLAND FAR NORTH OF THE AREA. THE SKIES HAVE
CLEARED SOUTH OF THE PORTLAND METRO AREA OVERNIGHT. LINGERING SURFACE
MOISTURE...LIGHT WINDS...AND THE CLEARING SKIES HAVE RESULTED IN
RADIATION FOG DEVELOPING IN MANY OF THE INTERIOR VALLEYS. THE CLOUDS
THAT ARE MOVING ACROSS THE NORTHERN AREA HAVE RESTRICTED RADIATION
COOLING SO FAR...BUT ARE THIN ENOUGH THAT IT IS LIKELY FOR MOST AREAS
INLAND VALLEYS TO HAVE FOG BY SUNRISE.

HIGH PRESSURE WILL CONTINUE TO BUILD TODAY AND PUSH THE FRONT AND
ASSOCIATED CLOUDS NORTH OF THE AREA. SUNSHINE SHOULD HEAT THE SURFACE
AND PROVIDE ENOUGH MIXING FOR THE FOG TO CLEAR LATER THIS MORNING.
SUNSHINE COMBINED WITH WARM AIR ADVECTION IN THE WAKE OF THE WARM
FRONT WILL RESULT IN TODAY POSSIBLY BEING THE WARMEST DAY OF THE YEAR
SO FAR FOR THE INTERIOR. IF THE FOG BEHAVES AND CLEARS THIS MORNING
THEN TEMPERATURES SHOULD WARM INTO THE LOW TO MID 70S FOR THE
WILLAMETTE VALLEY. WEAK ONSHORE FLOW WILL MODERATE THE COASTAL
TEMPERATURES WHERE THEY SHOULD PEAK IN THE LOW TO MID 60S.

THE UPPER RIDGE SHOULD MOVE FURTHER INLAND TONIGHT ALLOWING A COLD
FRONT THAT IS CURRENTLY AROUND 750 MILES OFFSHORE TO NEAR THE PACIFIC
NW. THERE MAY BE SOME HIGH CLOUDS THAT WILL STREAM OVER THE AREA
AHEAD OF THE FRONT...BUT THINK THESE WILL BE VERY THIN AND BARELY
LIMIT RADIATION COOLING. SURFACE MOISTURE WILL BE LESS AVAILABLE
TONIGHT...BUT LIGHT ONSHORE WINDS MAY BRING ENOUGH MARINE MOISTURE
INLAND FOR SOME VALLEY FOG TO FORM LATE TONIGHT.

THE COLD FRONT AND A CLOSELY FOLLOWING UPPER TROUGH WILL MOVE ACROSS
THE REGION FRIDAY.  LIFT AND INSTABILITY AHEAD OF THE UPPER LEVEL
TROUGH MAY ALLOW FOR A FEW SHOWERS AND PERHAPS A THUNDERSTORM OR TWO
TO POP OVER THE CENTRAL OREGON CASCADES ACROSS EASTERN LANE AND LINN
COUNTIES FRIDAY AFTERNOON AND EVENING...BUT THE BEST CHANCE FOR
THUNDERSTORMS REMAIN EAST OF THE CASCADES.

THE FRONT WILL MOVE ACROSS THE AREA FRIDAY NIGHT AND EXPECT AROUND
0.25 TO 0.5 INCH OF RAIN FOR THE HIGHER TERRAIN AND LESS THAN 0.15
FOR THE INTERIOR VALLEYS. SHOWERS WILL LINGER SATURDAY MORNING...BUT
MAINLY FOR THE HIGHER TERRAIN. SNOW LEVELS WILL LOWER TO AROUND 4500
FEET SATURDAY MORNING...BUT ANY SNOW ACCUMULATIONS SHOULD BE LIGHT.
ANOTHER UPPER RIDGE WILL BUILD SATURDAY NIGHT AND STEER AN
APPROACHING WARM FRONT NORTH OF THE AREA. TJ

LONG TERM...NO CHANGES...PREVIOUS DISCUSSION FOLLOWS...SATURDAY NIGHT
THROUGH THURSDAY...SHORTWAVE RIDGING SHOULD GENERALLY BRING DRY
CONDITIONS AND ABOVE NORMAL TEMPERATURES SUNDAY AND MONDAY.
HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A COLD TROUGH WILL
ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL ROUNDS OF SHOWERS
CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW LEVELS LOOK TO BE
NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING THE MIDDLE PART OF
NEXT WEEK. AB/NEUMAN

&&

.AVIATION...PATCHY IFR AND LIFR FOG HAS DEVELOPED ALONG THE COAST
AND INLAND VALLEYS EARLY THIS MORNING UNDER HIGH PRESSURE. EXPECT
CONDITIONS TO IMPROVE TO VFR AFTER 20Z THU FOR MOST LOCATIONS...
WITH FOG AND LOW STRATUS RETURNING BETWEEN 03-06Z FRI ALONG THE
COAST...AND CLOSER TO 06-08Z INLAND VALLEYS.

KPDX AND APPROACHES...PATCHY SHALLOW IFR FOG/LOW STRATUS WILL
CONTINUE TO IMPACT MAINLY WESTERN APPROACHES INCLUDING KPDX
THROUGH AT LEAST 18Z THU...THEN EXPECT VFR CONDITIONS TO PREVAIL.
FOG/LOW STRATUS RETURNS BETWEEN 04-06Z TONIGHT/FRIDAY MORNING. /27
&&

.MARINE...HIGH PRESSURE WILL REMAIN OVER THE REGION THROUGH
FRIDAY MORNING. EXPECT WINDS TO BE RATHER BENIGN...WITH OCCASIONAL
GUSTS TO 15 KT. AN APPROACHING COLD FRONT WILL MOVE ACROSS THE
WATERS ON FRIDAY AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL
CRAFT ADVISORY GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY
AND SHOULD BRING CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL
HOVER BETWEEN 7 TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64/27
&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
     TO 11 AM PDT THIS MORNING.
&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




000
FXUS66 KOTX 260932
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
232 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
06Z TAFS: The warm front is moving east into Montana but scattered
showers will continue over the Idaho panhandle tonight. A moist
boundary layer in the wake of this front will create IFR upslope
stratus decks in the KGEG area TAF sites after 08Z and through
15-16Z Thursday. Confidence remains low for stratus in KLWS and
KMWH...so have just included vcfg in TAF for now. Conditions will
improve after 17Z Thursday. /EK

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 260932
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
232 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
06Z TAFS: The warm front is moving east into Montana but scattered
showers will continue over the Idaho panhandle tonight. A moist
boundary layer in the wake of this front will create IFR upslope
stratus decks in the KGEG area TAF sites after 08Z and through
15-16Z Thursday. Confidence remains low for stratus in KLWS and
KMWH...so have just included vcfg in TAF for now. Conditions will
improve after 17Z Thursday. /EK

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 260932
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
232 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
06Z TAFS: The warm front is moving east into Montana but scattered
showers will continue over the Idaho panhandle tonight. A moist
boundary layer in the wake of this front will create IFR upslope
stratus decks in the KGEG area TAF sites after 08Z and through
15-16Z Thursday. Confidence remains low for stratus in KLWS and
KMWH...so have just included vcfg in TAF for now. Conditions will
improve after 17Z Thursday. /EK

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 260932
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
232 AM PDT THU MAR 26 2015

.SYNOPSIS...
Lingering showers will continue over the northeast mountains and
Idaho Panhandle today...with partly sunny skies and warmng
temperatures elsewhere. Friday through the weekend will be much
warmer than average with afternoon temperatures in the 60s and
even some lower 70s down in the Columbia Basin. Precipitation
chances will be tied to two cold front passages. The first arrives
Friday night and a second Monday night or Tuesday. Gusty winds
will accompany each front.

&&

.DISCUSSION...
Today through Friday...Satellite indicates ridging is commencing
over the region...and this trend is confirmed by all the main
model guidance field of motion progs...however the air mass
remains quite moist both at the surface and aloft as further
Pacific moisture trains into the region on the southern margin of
a deep subtropical fetch. Despite this moisture...synoptic scale
lift is becoming increasingly nebulous and weak although some
moist isentropic ascent will continue at least through this
morning over the northeast Washington mountains and the Idaho
Panhandle. Areas of light rain/occasional showers will continue
through the morning at these locations with some showers sneaking
in as far south as Spokane/Coeur D`Alene early today. These
lingering showers will gradually wane as the afternoon wears on
today and the region should enter a dry but variably cloudy break
in the active weather tonight and through Friday.

Other than the lingering precipitation issue...the main forecast
challenge will be high temperatures. Today the sun will be heavily
filtered by high and mid level clouds...any any insolation will
need to inefficiently warm a moist boundary layer over the
eastern half of the forecast area. Over the northeast and
panhandle lingering precipitation may curtail any sun at all for
much of the day. Thus high temperatures today will be mild and
above average...but not really remarkable.

Friday offers a better chance of challenging record highs around
the region especially in the basin zones. Sunshine will be more
common...although still filtered through cirrus...but the main
driver will be warm advection in the mid levels as southerly flow
kicks in ahead of the next Pacific short wave trough.

The balmy low level temperatures and relatively moist dew points on
Friday will create some marginal instability over the southeastern
zones and Idaho Panhandle during the afternoon and while current
models do not depict any well defined triggers...as the next
system approaches it is possible a stray thunderstorm could
develop especially over the high terrain of the southeast and
Shoshone County mountains. Worth a mention...but confidence is
pretty low for this possibility. /Fugazzi

Friday night through Wednesday: A progressive spring weather
pattern will continue across the Inland Northwest for the weekend
and into middle of next week. The upper level ridge will quickly
break down Friday night as a Pacific trough ripples through the
flow and brings a strong cold front accompanied by a round of
rain and high mountain snow showers Friday night into Saturday,
and gusty winds. The winds will be the most notiecable early
Saturday morning in the wake of a front and gradually taper off
by afternoon. The ridge aloft rebounds and stays put for rest of
the weekend although not as amplified. This will lead to a dirty
ridge situation, allowing Pacific moisture to stream over top and
keep skies partly sunny with a threat of high mountain
precipitation in the northern Cascades and near the Canadian
border. The next upper level trough will arrive Monday night into
Tuesday morning with another cold front and a round of rain and
high mountain snow showers, followed by gusty winds into Tuesday
afternoon. The upper level ridge continues to weaken and dampen as
the storm track sags further south into the region, allowing more
shortwave impulses to brush across the forecast area and keep the
threat of showers. The medium range models begin to diverge on the
timing of these impulses, and opted to the chance of showers
closer to climatology. Temperatures will continue to be above
normal through the weekend, and gradually moderate to near normal
readings by middle of next week while snow level slowly fall.
/rfox.

&&

.AVIATION...
06Z TAFS: The warm front is moving east into Montana but scattered
showers will continue over the Idaho panhandle tonight. A moist
boundary layer in the wake of this front will create IFR upslope
stratus decks in the KGEG area TAF sites after 08Z and through
15-16Z Thursday. Confidence remains low for stratus in KLWS and
KMWH...so have just included vcfg in TAF for now. Conditions will
improve after 17Z Thursday. /EK

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        61  42  69  46  60  38 /  20   0  10  60  20   0
Coeur d`Alene  60  40  68  43  60  36 /  20  10  10  60  50   0
Pullman        62  44  69  45  58  39 /   0   0  10  60  40   0
Lewiston       69  45  73  49  63  40 /   0   0  10  50  30   0
Colville       60  40  69  43  62  37 /  40  10  10  60  30   0
Sandpoint      57  37  66  42  59  34 /  50  10  10  50  60   0
Kellogg        58  40  65  43  56  36 /  40  10  10  60  60  10
Moses Lake     67  42  72  46  65  38 /   0   0   0  20  10   0
Wenatchee      69  47  72  47  65  42 /   0   0  10  20  10   0
Omak           63  42  69  42  66  36 /  10   0  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$





000
FXUS66 KOTX 260520
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1019 PM PDT WED MAR 25 2015

.SYNOPSIS...
Light rain will tapper off later this evening with the main focus
on North Idaho overnight for showers. Thursday through the
weekend will be much warmer than average with afternoon
temperatures in the 60s and even some lower 70s down in the
Columbia Basin. Precipitation chances will be tied to two cold
front passages. The first arrives Friday night and a second Monday
night or Tuesday. Gusty winds will accompany each front.




&&

.DISCUSSION...
The warm front that brought widespread light rain to the Inland
Northwest this afternoon has moved off to the east with just
scattered upslope showers lingering over the Idaho panhandle this
evening. This activity will diminish further overnight. Min
temperatures will remain on the mild side since we are not
expecting a lot of clearing behind this feature. A ridge of high
pressure will build over the region but there will be ample
moisture available to keep sufficient cloud cover over the area.
Expect temps to remain in the 40s for most valley locations except
for the northwest valleys where some degree of clearing is
possible. These locations could dip into the low 30s overnight.
Some patchy fog will develop across the northeast valleys and
possibly into the Lewis-Clark Valley and Moses Lake area but
confidence is lower for these areas. /Kelch

&&

.AVIATION...
06Z TAFS: The warm front is moving east into Montana but scattered
showers will continue over the Idaho panhandle tonight. A moist
boundary layer in the wake of this front will create IFR upslope
stratus decks in the KGEG area TAF sites after 08Z and through
15-16Z Thursday. Confidence remains low for stratus in KLWS and
KMWH...so have just included vcfg in TAF for now. Conditions will
improve after 17Z Thursday. /EK



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        41  64  43  69  45  62 /  60   0   0  10  20  10
Coeur d`Alene  39  61  40  68  43  62 /  70   0   0  10  30  30
Pullman        41  65  44  69  46  61 /  60   0   0  10  30  10
Lewiston       43  68  45  73  49  65 /  60   0   0  10  40  20
Colville       40  61  40  70  42  62 /  60   0  10  10  30  10
Sandpoint      37  57  37  66  41  61 /  70  10  10  10  30  30
Kellogg        38  60  39  65  44  59 /  70  10   0  10  50  40
Moses Lake     40  67  42  72  45  66 /  10   0   0  10  10  10
Wenatchee      44  68  48  72  47  66 /  10   0   0  10  20  10
Omak           39  66  42  70  42  67 /  10   0   0  10  20  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.
&&

$$




000
FXUS66 KSEW 260436
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
936 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL STRENGTHEN OVER THE REGION
OVERNIGHT...LEADING TO DRY AND WARM WEATHER ON THURSDAY. A FAST
MOVING LOW PRESSURE SYSTEM WILL BRING A PERIOD OF WET WEATHER TO
THE AREA ON FRIDAY. UNSETTLED CONDITIONS WILL PREVAIL THIS WEEKEND
UNDER MOIST WESTERLY FLOW ALOFT.

&&

.SHORT TERM...
RAIN HAS DECREASED SIGNIFICANTLY ACROSS THE CWA THIS EVENING. THE
FORECAST WAS UPDATED TO CUT BACK ON POPS...ESPECIALLY ACROSS THE
SOUTHERN PART OF THE CWA.

MEANWHILE...AN UPPER RIDGE WILL CONTINUE TO AMPLIFY OVER THE
REGION AND THIS WILL CAUSE THE RAIN TO BE SHUNTED NORTH OF THE CWA
OVERNIGHT. THU SHOULD BE A DRY AND WARM DAY ACROSS THE AREA. TEMPS
WILL BE WELL ABOVE NORMAL. THE FORECAST HIGH FOR SEATTLE IS 66
DEGREES. THE RECORD FOR MARCH 26TH IS 70 DEGREES SET BACK IN 1969.

AN UPPER TROF AND ASSOCIATED COLD OR OCCLUDED FRONT WILL BRING
RAIN BACK INTO THE AREA ON FRI. THERE WILL PROBABLY BE A THREAT
OF RAIN OVER MUCH OF THE CWA...ESPECIALLY THE COAST...BY LATE FRI
AFTERNOON. THE FRONT WILL SWEEP QUICKLY ACROSS THE REGION FRI
NIGHT. IT LOOKS LIKE THE EVENING PERIOD WILL BE THE WETTEST. THE
SNOW LEVEL SHOULD PLUMMET INTO THE 4500 TO 5000 FOOT RANGE BEHIND
THE FRONT.

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL OVER THE AREA ON
SATURDAY FOR UNSETTLED CONDITIONS.

.LONG TERM FROM THE PREV DISCUSSION...
AN UPPER RIDGE SHOULD KEEP MOST OF WRN WA DRY ON SUNDAY BUT THERE
IS A CHANCE OF RAIN IN THE FORECAST FOR THE COAST AND OLYMPICS...
THE FAR NORTH PART OF THE INTERIOR OF WRN WA...AND THE NORTH
CASCADES. RAIN WILL FALL ON THE NRN HALF OF VANCOUVER ISLAND AND
THE B.C. COAST THIS WEEKEND AS TWO FRONTAL SYSTEMS TRACK INTO THAT
AREA. A COLD FRONT WILL MOVE THROUGH WRN WA BY MONDAY NIGHT.
SCATTERED SHOWERS AND A LOW SNOW LEVEL ARE A GOOD BET TUE AND WED
AS 500 MB TEMPS DROP BELOW -30C WITH ONSHORE FLOW.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LIGHT RAIN WILL TAPER OFF THIS EVENING AS A WARM FRONT
LIFTS NORTH INTO BRITISH COLUMBIA. THE AIR MASS IS MOIST AND STABLE.
THE FLOW ALOFT IS WESTERLY. MVFR CIGS WILL LIKELY PERSIST THROUGH
THU MORNING. HIGH PRESSURE WILL BRING DRY AND STABLE WEATHER ON
THURSDAY. 33

KSEA...LIGHT RAIN THIS EVENING WITH MVFR CIGS. SURFACE WINDS WILL
REMAIN SOUTHERLY TO 10 KT. 33

&&

.MARINE...WINDS WILL EASE ACROSS WESTERN WA THIS EVENING AS A WARM
FRONT LIFTS NORTH INTO BRITISH COLUMBIA. WEAK HIGH PRESSURE WILL
MOVE OVER THE AREA ON THURSDAY FOR GENERALLY LIGHT WINDS. A COLD
FRONT WILL CROSS THE REGION LATE FRIDAY AFTERNOON OR EVENING. SMALL
CRAFT ADVISORY WINDS ARE LIKELY THROUGH THE STRAIT OF JUAN DE FUCA
FRIDAY NIGHT AS ONSHORE FLOW INCREASES. HIGH PRESSURE WILL REBUILD
OVER THE AREA THIS WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT TIL 5 AM THURSDAY FOR THE
     COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT TO
     60 NM AND THE WEST ENTRANCE TO THE STRAIT OF JUAN DE FUCA.

&&

$$

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000
FXUS66 KSEW 260436
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
936 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL STRENGTHEN OVER THE REGION
OVERNIGHT...LEADING TO DRY AND WARM WEATHER ON THURSDAY. A FAST
MOVING LOW PRESSURE SYSTEM WILL BRING A PERIOD OF WET WEATHER TO
THE AREA ON FRIDAY. UNSETTLED CONDITIONS WILL PREVAIL THIS WEEKEND
UNDER MOIST WESTERLY FLOW ALOFT.

&&

.SHORT TERM...
RAIN HAS DECREASED SIGNIFICANTLY ACROSS THE CWA THIS EVENING. THE
FORECAST WAS UPDATED TO CUT BACK ON POPS...ESPECIALLY ACROSS THE
SOUTHERN PART OF THE CWA.

MEANWHILE...AN UPPER RIDGE WILL CONTINUE TO AMPLIFY OVER THE
REGION AND THIS WILL CAUSE THE RAIN TO BE SHUNTED NORTH OF THE CWA
OVERNIGHT. THU SHOULD BE A DRY AND WARM DAY ACROSS THE AREA. TEMPS
WILL BE WELL ABOVE NORMAL. THE FORECAST HIGH FOR SEATTLE IS 66
DEGREES. THE RECORD FOR MARCH 26TH IS 70 DEGREES SET BACK IN 1969.

AN UPPER TROF AND ASSOCIATED COLD OR OCCLUDED FRONT WILL BRING
RAIN BACK INTO THE AREA ON FRI. THERE WILL PROBABLY BE A THREAT
OF RAIN OVER MUCH OF THE CWA...ESPECIALLY THE COAST...BY LATE FRI
AFTERNOON. THE FRONT WILL SWEEP QUICKLY ACROSS THE REGION FRI
NIGHT. IT LOOKS LIKE THE EVENING PERIOD WILL BE THE WETTEST. THE
SNOW LEVEL SHOULD PLUMMET INTO THE 4500 TO 5000 FOOT RANGE BEHIND
THE FRONT.

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL OVER THE AREA ON
SATURDAY FOR UNSETTLED CONDITIONS.

.LONG TERM FROM THE PREV DISCUSSION...
AN UPPER RIDGE SHOULD KEEP MOST OF WRN WA DRY ON SUNDAY BUT THERE
IS A CHANCE OF RAIN IN THE FORECAST FOR THE COAST AND OLYMPICS...
THE FAR NORTH PART OF THE INTERIOR OF WRN WA...AND THE NORTH
CASCADES. RAIN WILL FALL ON THE NRN HALF OF VANCOUVER ISLAND AND
THE B.C. COAST THIS WEEKEND AS TWO FRONTAL SYSTEMS TRACK INTO THAT
AREA. A COLD FRONT WILL MOVE THROUGH WRN WA BY MONDAY NIGHT.
SCATTERED SHOWERS AND A LOW SNOW LEVEL ARE A GOOD BET TUE AND WED
AS 500 MB TEMPS DROP BELOW -30C WITH ONSHORE FLOW.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LIGHT RAIN WILL TAPER OFF THIS EVENING AS A WARM FRONT
LIFTS NORTH INTO BRITISH COLUMBIA. THE AIR MASS IS MOIST AND STABLE.
THE FLOW ALOFT IS WESTERLY. MVFR CIGS WILL LIKELY PERSIST THROUGH
THU MORNING. HIGH PRESSURE WILL BRING DRY AND STABLE WEATHER ON
THURSDAY. 33

KSEA...LIGHT RAIN THIS EVENING WITH MVFR CIGS. SURFACE WINDS WILL
REMAIN SOUTHERLY TO 10 KT. 33

&&

.MARINE...WINDS WILL EASE ACROSS WESTERN WA THIS EVENING AS A WARM
FRONT LIFTS NORTH INTO BRITISH COLUMBIA. WEAK HIGH PRESSURE WILL
MOVE OVER THE AREA ON THURSDAY FOR GENERALLY LIGHT WINDS. A COLD
FRONT WILL CROSS THE REGION LATE FRIDAY AFTERNOON OR EVENING. SMALL
CRAFT ADVISORY WINDS ARE LIKELY THROUGH THE STRAIT OF JUAN DE FUCA
FRIDAY NIGHT AS ONSHORE FLOW INCREASES. HIGH PRESSURE WILL REBUILD
OVER THE AREA THIS WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT TIL 5 AM THURSDAY FOR THE
     COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT TO
     60 NM AND THE WEST ENTRANCE TO THE STRAIT OF JUAN DE FUCA.

&&

$$

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000
FXUS66 KSEW 260436
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
936 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL STRENGTHEN OVER THE REGION
OVERNIGHT...LEADING TO DRY AND WARM WEATHER ON THURSDAY. A FAST
MOVING LOW PRESSURE SYSTEM WILL BRING A PERIOD OF WET WEATHER TO
THE AREA ON FRIDAY. UNSETTLED CONDITIONS WILL PREVAIL THIS WEEKEND
UNDER MOIST WESTERLY FLOW ALOFT.

&&

.SHORT TERM...
RAIN HAS DECREASED SIGNIFICANTLY ACROSS THE CWA THIS EVENING. THE
FORECAST WAS UPDATED TO CUT BACK ON POPS...ESPECIALLY ACROSS THE
SOUTHERN PART OF THE CWA.

MEANWHILE...AN UPPER RIDGE WILL CONTINUE TO AMPLIFY OVER THE
REGION AND THIS WILL CAUSE THE RAIN TO BE SHUNTED NORTH OF THE CWA
OVERNIGHT. THU SHOULD BE A DRY AND WARM DAY ACROSS THE AREA. TEMPS
WILL BE WELL ABOVE NORMAL. THE FORECAST HIGH FOR SEATTLE IS 66
DEGREES. THE RECORD FOR MARCH 26TH IS 70 DEGREES SET BACK IN 1969.

AN UPPER TROF AND ASSOCIATED COLD OR OCCLUDED FRONT WILL BRING
RAIN BACK INTO THE AREA ON FRI. THERE WILL PROBABLY BE A THREAT
OF RAIN OVER MUCH OF THE CWA...ESPECIALLY THE COAST...BY LATE FRI
AFTERNOON. THE FRONT WILL SWEEP QUICKLY ACROSS THE REGION FRI
NIGHT. IT LOOKS LIKE THE EVENING PERIOD WILL BE THE WETTEST. THE
SNOW LEVEL SHOULD PLUMMET INTO THE 4500 TO 5000 FOOT RANGE BEHIND
THE FRONT.

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL OVER THE AREA ON
SATURDAY FOR UNSETTLED CONDITIONS.

.LONG TERM FROM THE PREV DISCUSSION...
AN UPPER RIDGE SHOULD KEEP MOST OF WRN WA DRY ON SUNDAY BUT THERE
IS A CHANCE OF RAIN IN THE FORECAST FOR THE COAST AND OLYMPICS...
THE FAR NORTH PART OF THE INTERIOR OF WRN WA...AND THE NORTH
CASCADES. RAIN WILL FALL ON THE NRN HALF OF VANCOUVER ISLAND AND
THE B.C. COAST THIS WEEKEND AS TWO FRONTAL SYSTEMS TRACK INTO THAT
AREA. A COLD FRONT WILL MOVE THROUGH WRN WA BY MONDAY NIGHT.
SCATTERED SHOWERS AND A LOW SNOW LEVEL ARE A GOOD BET TUE AND WED
AS 500 MB TEMPS DROP BELOW -30C WITH ONSHORE FLOW.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LIGHT RAIN WILL TAPER OFF THIS EVENING AS A WARM FRONT
LIFTS NORTH INTO BRITISH COLUMBIA. THE AIR MASS IS MOIST AND STABLE.
THE FLOW ALOFT IS WESTERLY. MVFR CIGS WILL LIKELY PERSIST THROUGH
THU MORNING. HIGH PRESSURE WILL BRING DRY AND STABLE WEATHER ON
THURSDAY. 33

KSEA...LIGHT RAIN THIS EVENING WITH MVFR CIGS. SURFACE WINDS WILL
REMAIN SOUTHERLY TO 10 KT. 33

&&

.MARINE...WINDS WILL EASE ACROSS WESTERN WA THIS EVENING AS A WARM
FRONT LIFTS NORTH INTO BRITISH COLUMBIA. WEAK HIGH PRESSURE WILL
MOVE OVER THE AREA ON THURSDAY FOR GENERALLY LIGHT WINDS. A COLD
FRONT WILL CROSS THE REGION LATE FRIDAY AFTERNOON OR EVENING. SMALL
CRAFT ADVISORY WINDS ARE LIKELY THROUGH THE STRAIT OF JUAN DE FUCA
FRIDAY NIGHT AS ONSHORE FLOW INCREASES. HIGH PRESSURE WILL REBUILD
OVER THE AREA THIS WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT TIL 5 AM THURSDAY FOR THE
     COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT TO
     60 NM AND THE WEST ENTRANCE TO THE STRAIT OF JUAN DE FUCA.

&&

$$

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000
FXUS66 KSEW 260436
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
936 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL STRENGTHEN OVER THE REGION
OVERNIGHT...LEADING TO DRY AND WARM WEATHER ON THURSDAY. A FAST
MOVING LOW PRESSURE SYSTEM WILL BRING A PERIOD OF WET WEATHER TO
THE AREA ON FRIDAY. UNSETTLED CONDITIONS WILL PREVAIL THIS WEEKEND
UNDER MOIST WESTERLY FLOW ALOFT.

&&

.SHORT TERM...
RAIN HAS DECREASED SIGNIFICANTLY ACROSS THE CWA THIS EVENING. THE
FORECAST WAS UPDATED TO CUT BACK ON POPS...ESPECIALLY ACROSS THE
SOUTHERN PART OF THE CWA.

MEANWHILE...AN UPPER RIDGE WILL CONTINUE TO AMPLIFY OVER THE
REGION AND THIS WILL CAUSE THE RAIN TO BE SHUNTED NORTH OF THE CWA
OVERNIGHT. THU SHOULD BE A DRY AND WARM DAY ACROSS THE AREA. TEMPS
WILL BE WELL ABOVE NORMAL. THE FORECAST HIGH FOR SEATTLE IS 66
DEGREES. THE RECORD FOR MARCH 26TH IS 70 DEGREES SET BACK IN 1969.

AN UPPER TROF AND ASSOCIATED COLD OR OCCLUDED FRONT WILL BRING
RAIN BACK INTO THE AREA ON FRI. THERE WILL PROBABLY BE A THREAT
OF RAIN OVER MUCH OF THE CWA...ESPECIALLY THE COAST...BY LATE FRI
AFTERNOON. THE FRONT WILL SWEEP QUICKLY ACROSS THE REGION FRI
NIGHT. IT LOOKS LIKE THE EVENING PERIOD WILL BE THE WETTEST. THE
SNOW LEVEL SHOULD PLUMMET INTO THE 4500 TO 5000 FOOT RANGE BEHIND
THE FRONT.

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL OVER THE AREA ON
SATURDAY FOR UNSETTLED CONDITIONS.

.LONG TERM FROM THE PREV DISCUSSION...
AN UPPER RIDGE SHOULD KEEP MOST OF WRN WA DRY ON SUNDAY BUT THERE
IS A CHANCE OF RAIN IN THE FORECAST FOR THE COAST AND OLYMPICS...
THE FAR NORTH PART OF THE INTERIOR OF WRN WA...AND THE NORTH
CASCADES. RAIN WILL FALL ON THE NRN HALF OF VANCOUVER ISLAND AND
THE B.C. COAST THIS WEEKEND AS TWO FRONTAL SYSTEMS TRACK INTO THAT
AREA. A COLD FRONT WILL MOVE THROUGH WRN WA BY MONDAY NIGHT.
SCATTERED SHOWERS AND A LOW SNOW LEVEL ARE A GOOD BET TUE AND WED
AS 500 MB TEMPS DROP BELOW -30C WITH ONSHORE FLOW.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LIGHT RAIN WILL TAPER OFF THIS EVENING AS A WARM FRONT
LIFTS NORTH INTO BRITISH COLUMBIA. THE AIR MASS IS MOIST AND STABLE.
THE FLOW ALOFT IS WESTERLY. MVFR CIGS WILL LIKELY PERSIST THROUGH
THU MORNING. HIGH PRESSURE WILL BRING DRY AND STABLE WEATHER ON
THURSDAY. 33

KSEA...LIGHT RAIN THIS EVENING WITH MVFR CIGS. SURFACE WINDS WILL
REMAIN SOUTHERLY TO 10 KT. 33

&&

.MARINE...WINDS WILL EASE ACROSS WESTERN WA THIS EVENING AS A WARM
FRONT LIFTS NORTH INTO BRITISH COLUMBIA. WEAK HIGH PRESSURE WILL
MOVE OVER THE AREA ON THURSDAY FOR GENERALLY LIGHT WINDS. A COLD
FRONT WILL CROSS THE REGION LATE FRIDAY AFTERNOON OR EVENING. SMALL
CRAFT ADVISORY WINDS ARE LIKELY THROUGH THE STRAIT OF JUAN DE FUCA
FRIDAY NIGHT AS ONSHORE FLOW INCREASES. HIGH PRESSURE WILL REBUILD
OVER THE AREA THIS WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT TIL 5 AM THURSDAY FOR THE
     COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT TO
     60 NM AND THE WEST ENTRANCE TO THE STRAIT OF JUAN DE FUCA.

&&

$$

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000
FXUS66 KSEW 260436
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
936 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL STRENGTHEN OVER THE REGION
OVERNIGHT...LEADING TO DRY AND WARM WEATHER ON THURSDAY. A FAST
MOVING LOW PRESSURE SYSTEM WILL BRING A PERIOD OF WET WEATHER TO
THE AREA ON FRIDAY. UNSETTLED CONDITIONS WILL PREVAIL THIS WEEKEND
UNDER MOIST WESTERLY FLOW ALOFT.

&&

.SHORT TERM...
RAIN HAS DECREASED SIGNIFICANTLY ACROSS THE CWA THIS EVENING. THE
FORECAST WAS UPDATED TO CUT BACK ON POPS...ESPECIALLY ACROSS THE
SOUTHERN PART OF THE CWA.

MEANWHILE...AN UPPER RIDGE WILL CONTINUE TO AMPLIFY OVER THE
REGION AND THIS WILL CAUSE THE RAIN TO BE SHUNTED NORTH OF THE CWA
OVERNIGHT. THU SHOULD BE A DRY AND WARM DAY ACROSS THE AREA. TEMPS
WILL BE WELL ABOVE NORMAL. THE FORECAST HIGH FOR SEATTLE IS 66
DEGREES. THE RECORD FOR MARCH 26TH IS 70 DEGREES SET BACK IN 1969.

AN UPPER TROF AND ASSOCIATED COLD OR OCCLUDED FRONT WILL BRING
RAIN BACK INTO THE AREA ON FRI. THERE WILL PROBABLY BE A THREAT
OF RAIN OVER MUCH OF THE CWA...ESPECIALLY THE COAST...BY LATE FRI
AFTERNOON. THE FRONT WILL SWEEP QUICKLY ACROSS THE REGION FRI
NIGHT. IT LOOKS LIKE THE EVENING PERIOD WILL BE THE WETTEST. THE
SNOW LEVEL SHOULD PLUMMET INTO THE 4500 TO 5000 FOOT RANGE BEHIND
THE FRONT.

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL OVER THE AREA ON
SATURDAY FOR UNSETTLED CONDITIONS.

.LONG TERM FROM THE PREV DISCUSSION...
AN UPPER RIDGE SHOULD KEEP MOST OF WRN WA DRY ON SUNDAY BUT THERE
IS A CHANCE OF RAIN IN THE FORECAST FOR THE COAST AND OLYMPICS...
THE FAR NORTH PART OF THE INTERIOR OF WRN WA...AND THE NORTH
CASCADES. RAIN WILL FALL ON THE NRN HALF OF VANCOUVER ISLAND AND
THE B.C. COAST THIS WEEKEND AS TWO FRONTAL SYSTEMS TRACK INTO THAT
AREA. A COLD FRONT WILL MOVE THROUGH WRN WA BY MONDAY NIGHT.
SCATTERED SHOWERS AND A LOW SNOW LEVEL ARE A GOOD BET TUE AND WED
AS 500 MB TEMPS DROP BELOW -30C WITH ONSHORE FLOW.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LIGHT RAIN WILL TAPER OFF THIS EVENING AS A WARM FRONT
LIFTS NORTH INTO BRITISH COLUMBIA. THE AIR MASS IS MOIST AND STABLE.
THE FLOW ALOFT IS WESTERLY. MVFR CIGS WILL LIKELY PERSIST THROUGH
THU MORNING. HIGH PRESSURE WILL BRING DRY AND STABLE WEATHER ON
THURSDAY. 33

KSEA...LIGHT RAIN THIS EVENING WITH MVFR CIGS. SURFACE WINDS WILL
REMAIN SOUTHERLY TO 10 KT. 33

&&

.MARINE...WINDS WILL EASE ACROSS WESTERN WA THIS EVENING AS A WARM
FRONT LIFTS NORTH INTO BRITISH COLUMBIA. WEAK HIGH PRESSURE WILL
MOVE OVER THE AREA ON THURSDAY FOR GENERALLY LIGHT WINDS. A COLD
FRONT WILL CROSS THE REGION LATE FRIDAY AFTERNOON OR EVENING. SMALL
CRAFT ADVISORY WINDS ARE LIKELY THROUGH THE STRAIT OF JUAN DE FUCA
FRIDAY NIGHT AS ONSHORE FLOW INCREASES. HIGH PRESSURE WILL REBUILD
OVER THE AREA THIS WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT TIL 5 AM THURSDAY FOR THE
     COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT TO
     60 NM AND THE WEST ENTRANCE TO THE STRAIT OF JUAN DE FUCA.

&&

$$

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000
FXUS66 KSEW 260436
AFDSEW

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
936 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE ALOFT WILL STRENGTHEN OVER THE REGION
OVERNIGHT...LEADING TO DRY AND WARM WEATHER ON THURSDAY. A FAST
MOVING LOW PRESSURE SYSTEM WILL BRING A PERIOD OF WET WEATHER TO
THE AREA ON FRIDAY. UNSETTLED CONDITIONS WILL PREVAIL THIS WEEKEND
UNDER MOIST WESTERLY FLOW ALOFT.

&&

.SHORT TERM...
RAIN HAS DECREASED SIGNIFICANTLY ACROSS THE CWA THIS EVENING. THE
FORECAST WAS UPDATED TO CUT BACK ON POPS...ESPECIALLY ACROSS THE
SOUTHERN PART OF THE CWA.

MEANWHILE...AN UPPER RIDGE WILL CONTINUE TO AMPLIFY OVER THE
REGION AND THIS WILL CAUSE THE RAIN TO BE SHUNTED NORTH OF THE CWA
OVERNIGHT. THU SHOULD BE A DRY AND WARM DAY ACROSS THE AREA. TEMPS
WILL BE WELL ABOVE NORMAL. THE FORECAST HIGH FOR SEATTLE IS 66
DEGREES. THE RECORD FOR MARCH 26TH IS 70 DEGREES SET BACK IN 1969.

AN UPPER TROF AND ASSOCIATED COLD OR OCCLUDED FRONT WILL BRING
RAIN BACK INTO THE AREA ON FRI. THERE WILL PROBABLY BE A THREAT
OF RAIN OVER MUCH OF THE CWA...ESPECIALLY THE COAST...BY LATE FRI
AFTERNOON. THE FRONT WILL SWEEP QUICKLY ACROSS THE REGION FRI
NIGHT. IT LOOKS LIKE THE EVENING PERIOD WILL BE THE WETTEST. THE
SNOW LEVEL SHOULD PLUMMET INTO THE 4500 TO 5000 FOOT RANGE BEHIND
THE FRONT.

MOIST...NEARLY ZONAL FLOW ALOFT WILL PREVAIL OVER THE AREA ON
SATURDAY FOR UNSETTLED CONDITIONS.

.LONG TERM FROM THE PREV DISCUSSION...
AN UPPER RIDGE SHOULD KEEP MOST OF WRN WA DRY ON SUNDAY BUT THERE
IS A CHANCE OF RAIN IN THE FORECAST FOR THE COAST AND OLYMPICS...
THE FAR NORTH PART OF THE INTERIOR OF WRN WA...AND THE NORTH
CASCADES. RAIN WILL FALL ON THE NRN HALF OF VANCOUVER ISLAND AND
THE B.C. COAST THIS WEEKEND AS TWO FRONTAL SYSTEMS TRACK INTO THAT
AREA. A COLD FRONT WILL MOVE THROUGH WRN WA BY MONDAY NIGHT.
SCATTERED SHOWERS AND A LOW SNOW LEVEL ARE A GOOD BET TUE AND WED
AS 500 MB TEMPS DROP BELOW -30C WITH ONSHORE FLOW.

&&

.HYDROLOGY...
FLOODING IS UNLIKELY THE NEXT 7 DAYS.

&&

.AVIATION...LIGHT RAIN WILL TAPER OFF THIS EVENING AS A WARM FRONT
LIFTS NORTH INTO BRITISH COLUMBIA. THE AIR MASS IS MOIST AND STABLE.
THE FLOW ALOFT IS WESTERLY. MVFR CIGS WILL LIKELY PERSIST THROUGH
THU MORNING. HIGH PRESSURE WILL BRING DRY AND STABLE WEATHER ON
THURSDAY. 33

KSEA...LIGHT RAIN THIS EVENING WITH MVFR CIGS. SURFACE WINDS WILL
REMAIN SOUTHERLY TO 10 KT. 33

&&

.MARINE...WINDS WILL EASE ACROSS WESTERN WA THIS EVENING AS A WARM
FRONT LIFTS NORTH INTO BRITISH COLUMBIA. WEAK HIGH PRESSURE WILL
MOVE OVER THE AREA ON THURSDAY FOR GENERALLY LIGHT WINDS. A COLD
FRONT WILL CROSS THE REGION LATE FRIDAY AFTERNOON OR EVENING. SMALL
CRAFT ADVISORY WINDS ARE LIKELY THROUGH THE STRAIT OF JUAN DE FUCA
FRIDAY NIGHT AS ONSHORE FLOW INCREASES. HIGH PRESSURE WILL REBUILD
OVER THE AREA THIS WEEKEND.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...NONE.
PZ...SMALL CRAFT ADVISORY IN EFFECT TIL 5 AM THURSDAY FOR THE
     COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT TO
     60 NM AND THE WEST ENTRANCE TO THE STRAIT OF JUAN DE FUCA.

&&

$$

WWW.WEATHER.GOV/SEATTLE

YOU CAN SEE AN ILLUSTRATED VERSION OF THIS FORECAST DISCUSSION AT
WWW.WEATHER.GOV/SEATTLE/GAFD/LATEST_WEBAFD.HTML




000
FXUS66 KPQR 260347
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
847 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.

&&

.UPDATE...MINIMAL CHANGES TO THE PACKAGE TONIGHT. REMNANT PATCHY
LIGHT RAIN CONTINUES OVER THE WASHINGTON CASCADES AND THE NORTH
COAST RANGE AS GAUGES STILL SHOW THE OCCASIONAL HUNDREDTH OR TWO
EACH HOUR. DONT THINK MEASURABLE RAIN WILL LAST MUCH PAST MIDNIGHT
SO HAVE KEPT CONDITIONS DRY AS PREVIOUS FORECAST INDICATED. UPPER
RIDGING IS BUILDING ALTHOUGH A TOUCH SLOWER SO HAVE NUDGED SKY COVER
UP JUST A BIT FOR THE REST OF THE EVENING. STILL EXPECT MAINLY HIGH
CLOUDS FOR THE OVERNIGHT HOURS AND THIS SHOULD RESULT IN ENOUGH
COOLING AT THE SURFACE TO APPROACH THE DEW POINT. TIMING IS A BIT
TRICKY...BUT STILL FEEL IT WILL GET COLD ENOUGH FOR PATCHY FOG TO
DEVELOP AT THE COAST AND MOST OF THE VALLEY LATE OVERNIGHT WITH A
FEW BROADER AREAS. MOST FAVORED WILL BE AROUND
EUGENE...MCMINNVILLE...AND POSSIBLY NEAR HILLSBORO AND THE UPPER
TUALATIN VALLEY. MOST OF THE FOG SHOULD BURN OFF BY LATE MORNING BUT
AN UP VALLEY FLOW WILL HELP CONCENTRATE THE MOISTURE TOWARDS EUGENE
INTO THE EARLY AFTERNOON. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 248 PM PDT WED MAR 25 2015/

SHORT TERM...TODAY THROUGH SATURDAY...A WARM FRONT SLOWLY LIFTING
NORTHWARD WILL RESULT IN THE AREA DRYING OUT FROM SOUTH TO NORTH
LATE THIS AFTERNOON AND EVENING. CLEARING SKIES...LIGHT WINDS AND
PLENTY OF LOW LEVEL MOISTURE SHOULD LEAD TO AREAS OF VALLEY FOG AND
LOW CLOUDS TONIGHT. THE FOG AND LOW CLOUDS SHOULD BURN OFF TOWARDS
LATE MORNING/MIDDAY WITH TEMPERATURES IN THE WILLAMETTE VALLEY
LIKELY CLIMBING INTO THE LOW 70S. THE CURRENT FORECAST COULD BE A
TOUCH TOO WARM THURSDAY DEPENDING ON THE FOG AND LOW CLOUD COVERAGE
IN THE MORNING.

THE FRONT AND UPPER LEVEL TROUGH CURRENTLY STALLED BETWEEN 130W AND
140W WILL PUSH EASTWARD INTO THE AREA FRIDAY. A BIT STRONGER ONSHORE
FLOW SHOULD RESULT IN WILLAMETTE VALLEY HIGH TEMPERATURES TOPPING
OUT SEVERAL DEGREES COOLER THAN TOMORROW. ADDITIONAL LIFT AND
INSTABILITY AHEAD OF THE UPPER LEVEL TROUGH MAY ALLOW FOR A FEW
SHOWERS AND PERHAPS A THUNDERSTORM OR TWO TO POP OVER THE CENTRAL
OREGON CASCADES ACROSS EASTERN LANE AND LINN COUNTIES...BUT IT
APPEARS THE BEST CHANCES WILL GENERALLY REMAIN EAST OF OUR CWA.
MODELS SEEM TO BE CONVERGING ON THE IDEA THAT THE AFOREMENTIONED
FRONT WILL LIKELY BRING A BOUT OF RAIN TO THE AREA FRIDAY NIGHT. A
FEW SHOWERS WILL LIKELY LINGER ALONG THE COAST AND IN THE CASCADES
SATURDAY MORNING...BUT SATURDAY CONTINUES TO LOOK MAINLY DRY FOR THE
MAIN POPULATION  CENTERS OF THE REGION WITH NEAR TO SLIGHTLY ABOVE
NORMAL TEMPERATURES. /NEUMAN

LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...SHORTWAVE RIDGING
SHOULD GENERALLY BRING DRY CONDITIONS AND ABOVE NORMAL TEMPERATURES
SUNDAY AND MONDAY. HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A
COLD TROUGH WILL ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL
ROUNDS OF SHOWERS CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO BE NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING
THE MIDDLE PART OF NEXT WEEK. AB/NEUMAN


&&

.AVIATION...HIGH PRESSURE HAS ALLOWED MOST OF THE REGION TO
IMPROVE TO VFR THIS EVENING. THE EXCEPTION BEING KAST...WHICH
CONTINUES TO SEE IFR CIGS DUE TO A STALLED WARM FRONT TO THE
NORTH. HOWEVER...CONDITIONS ACROSS THE REGION WILL DETERIORATE
TOWARDS MVFR/IFR AFTER MIDNIGHT AS FOG AND LOW STRATUS DEVELOPS
UNDER CLAM WINDS AND A MOIST LOWER ATMOSPHERE. CONDITIONS SHOULD
IMPROVE TOWARDS VFR BY TOMORROW AFTERNOON...WITH FOG AND LOW
STRATUS RETURNING TOMORROW NIGHT.

KPDX AND APPROACHES...EXPECT VFR CONDITIONS UNDER LIGHT WINDS TO
SLOWLY DETERIORATE TOWARDS IFR AROUND 12Z AS FOG AND LOW STRATUS
DEVELOPS OVERNIGHT. CONDITIONS SHOULD IMPROVE TOWARDS VFR AFTER
18Z. FOG/LOW STRATUS RETURNS TOMORROW NIGHT/FRIDAY MORNING. /64

&&

.MARINE...HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE WATERS
TONIGHT AND REMAIN IN PLACE THROUGH FRIDAY MORNING. EXPECT WINDS
TO BE RATHER BENIGN...WITH OCCASIONAL GUSTS TO 15 KT. AN
APPROACHING COLD FRONT WILL MOVE ACROSS THE WATERS ON FRIDAY
AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY
GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY AND SHOULD BRING
CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL HOVER BETWEEN 7
TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL
     10 PM PDT THIS EVENING.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
     TO 11 AM PDT THURSDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.



000
FXUS66 KPQR 260347
AFDPQR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND
847 PM PDT WED MAR 25 2015

.SYNOPSIS...HIGH PRESSURE WILL LEAD TO ABOVE NORMAL TEMPERATURES
THURSDAY AND FRIDAY WITH SOME MORNING FOG AND LOW CLOUDS IN THE
LOWLANDS. A FRONT WILL SPREAD RAIN INTO THE AREA FRIDAY NIGHT WITH A
DRYING TREND ON SATURDAY. DRY AND MILD WEATHER LOOK TO RETURN LATE
SATURDAY THROUGH EARLY MONDAY BEFORE ANOTHER FRONT BRINGS MORE RAIN
AND COOLER WEATHER TO THE AREA EARLY NEXT WEEK. SNOW LEVELS WILL
THEN LIKELY DROP NEAR OR SLIGHTLY BELOW CASCADE PASS LEVELS.

&&

.UPDATE...MINIMAL CHANGES TO THE PACKAGE TONIGHT. REMNANT PATCHY
LIGHT RAIN CONTINUES OVER THE WASHINGTON CASCADES AND THE NORTH
COAST RANGE AS GAUGES STILL SHOW THE OCCASIONAL HUNDREDTH OR TWO
EACH HOUR. DONT THINK MEASURABLE RAIN WILL LAST MUCH PAST MIDNIGHT
SO HAVE KEPT CONDITIONS DRY AS PREVIOUS FORECAST INDICATED. UPPER
RIDGING IS BUILDING ALTHOUGH A TOUCH SLOWER SO HAVE NUDGED SKY COVER
UP JUST A BIT FOR THE REST OF THE EVENING. STILL EXPECT MAINLY HIGH
CLOUDS FOR THE OVERNIGHT HOURS AND THIS SHOULD RESULT IN ENOUGH
COOLING AT THE SURFACE TO APPROACH THE DEW POINT. TIMING IS A BIT
TRICKY...BUT STILL FEEL IT WILL GET COLD ENOUGH FOR PATCHY FOG TO
DEVELOP AT THE COAST AND MOST OF THE VALLEY LATE OVERNIGHT WITH A
FEW BROADER AREAS. MOST FAVORED WILL BE AROUND
EUGENE...MCMINNVILLE...AND POSSIBLY NEAR HILLSBORO AND THE UPPER
TUALATIN VALLEY. MOST OF THE FOG SHOULD BURN OFF BY LATE MORNING BUT
AN UP VALLEY FLOW WILL HELP CONCENTRATE THE MOISTURE TOWARDS EUGENE
INTO THE EARLY AFTERNOON. UPDATES WILL BE AVAILABLE SHORTLY. /JBONK

&&

.PREV DISC... /ISSUED 248 PM PDT WED MAR 25 2015/

SHORT TERM...TODAY THROUGH SATURDAY...A WARM FRONT SLOWLY LIFTING
NORTHWARD WILL RESULT IN THE AREA DRYING OUT FROM SOUTH TO NORTH
LATE THIS AFTERNOON AND EVENING. CLEARING SKIES...LIGHT WINDS AND
PLENTY OF LOW LEVEL MOISTURE SHOULD LEAD TO AREAS OF VALLEY FOG AND
LOW CLOUDS TONIGHT. THE FOG AND LOW CLOUDS SHOULD BURN OFF TOWARDS
LATE MORNING/MIDDAY WITH TEMPERATURES IN THE WILLAMETTE VALLEY
LIKELY CLIMBING INTO THE LOW 70S. THE CURRENT FORECAST COULD BE A
TOUCH TOO WARM THURSDAY DEPENDING ON THE FOG AND LOW CLOUD COVERAGE
IN THE MORNING.

THE FRONT AND UPPER LEVEL TROUGH CURRENTLY STALLED BETWEEN 130W AND
140W WILL PUSH EASTWARD INTO THE AREA FRIDAY. A BIT STRONGER ONSHORE
FLOW SHOULD RESULT IN WILLAMETTE VALLEY HIGH TEMPERATURES TOPPING
OUT SEVERAL DEGREES COOLER THAN TOMORROW. ADDITIONAL LIFT AND
INSTABILITY AHEAD OF THE UPPER LEVEL TROUGH MAY ALLOW FOR A FEW
SHOWERS AND PERHAPS A THUNDERSTORM OR TWO TO POP OVER THE CENTRAL
OREGON CASCADES ACROSS EASTERN LANE AND LINN COUNTIES...BUT IT
APPEARS THE BEST CHANCES WILL GENERALLY REMAIN EAST OF OUR CWA.
MODELS SEEM TO BE CONVERGING ON THE IDEA THAT THE AFOREMENTIONED
FRONT WILL LIKELY BRING A BOUT OF RAIN TO THE AREA FRIDAY NIGHT. A
FEW SHOWERS WILL LIKELY LINGER ALONG THE COAST AND IN THE CASCADES
SATURDAY MORNING...BUT SATURDAY CONTINUES TO LOOK MAINLY DRY FOR THE
MAIN POPULATION  CENTERS OF THE REGION WITH NEAR TO SLIGHTLY ABOVE
NORMAL TEMPERATURES. /NEUMAN

LONG TERM...SATURDAY NIGHT THROUGH THURSDAY...SHORTWAVE RIDGING
SHOULD GENERALLY BRING DRY CONDITIONS AND ABOVE NORMAL TEMPERATURES
SUNDAY AND MONDAY. HOWEVER...MODELS ARE COMING INTO AGREEMENT THAT A
COLD TROUGH WILL ARRIVE MONDAY NIGHT AND TUESDAY...WITH ADDITIONAL
ROUNDS OF SHOWERS CONTINUING INTO THE MIDDLE PART OF NEXT WEEK. SNOW
LEVELS LOOK TO BE NEAR TO SLIGHTLY BELOW CASCADE PASS LEVEL DURING
THE MIDDLE PART OF NEXT WEEK. AB/NEUMAN


&&

.AVIATION...HIGH PRESSURE HAS ALLOWED MOST OF THE REGION TO
IMPROVE TO VFR THIS EVENING. THE EXCEPTION BEING KAST...WHICH
CONTINUES TO SEE IFR CIGS DUE TO A STALLED WARM FRONT TO THE
NORTH. HOWEVER...CONDITIONS ACROSS THE REGION WILL DETERIORATE
TOWARDS MVFR/IFR AFTER MIDNIGHT AS FOG AND LOW STRATUS DEVELOPS
UNDER CLAM WINDS AND A MOIST LOWER ATMOSPHERE. CONDITIONS SHOULD
IMPROVE TOWARDS VFR BY TOMORROW AFTERNOON...WITH FOG AND LOW
STRATUS RETURNING TOMORROW NIGHT.

KPDX AND APPROACHES...EXPECT VFR CONDITIONS UNDER LIGHT WINDS TO
SLOWLY DETERIORATE TOWARDS IFR AROUND 12Z AS FOG AND LOW STRATUS
DEVELOPS OVERNIGHT. CONDITIONS SHOULD IMPROVE TOWARDS VFR AFTER
18Z. FOG/LOW STRATUS RETURNS TOMORROW NIGHT/FRIDAY MORNING. /64

&&

.MARINE...HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE WATERS
TONIGHT AND REMAIN IN PLACE THROUGH FRIDAY MORNING. EXPECT WINDS
TO BE RATHER BENIGN...WITH OCCASIONAL GUSTS TO 15 KT. AN
APPROACHING COLD FRONT WILL MOVE ACROSS THE WATERS ON FRIDAY
AFTERNOON AND COULD BRING ANOTHER ROUND OF SMALL CRAFT ADVISORY
GUSTS TO 25 KT. HIGH PRESSURE RETURNS ON SATURDAY AND SHOULD BRING
CALM WINDS THIS WEEKEND. SEAS THROUGH SUNDAY WILL HOVER BETWEEN 7
TO 9 FT.

A PROGRESSIVE WEATHER PATTERN LOOKS TO RETURN EARLY NEXT WEEK AND
COULD BRING SMALL CRAFT ADVISORY GUSTS TO 30 KT ON MONDAY...WITH
SEAS CLIMBING INTO THE LOW TEENS BY TUESDAY. HOWEVER...CONFIDENCE
IS STILL QUITE LOW THAT THIS WILL HAPPEN GIVEN THAT ONLY ONE OF
THE OPERATIONAL MODELS IS SHOWING THIS PATTERN SHIFT. /64

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR UNTIL
     10 PM PDT THIS EVENING.

     SMALL CRAFT ADVISORY FOR ROUGH COLUMBIA RIVER BAR FROM 7 AM
     TO 11 AM PDT THURSDAY.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
WWW.TWITTER.COM/NWSPORTLAND

THIS DISCUSSION IS FOR NORTHWEST OREGON AND SOUTHWEST WASHINGTON
FROM THE CASCADE CREST TO 60 NAUTICAL MILES OFFSHORE. THE AREA IS
COMMONLY REFERRED TO AS THE FORECAST AREA.




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