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000
FXUS66 KPDT 311828 AAB
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1125 AM PDT FRI OCT 31 2014

UPDATED AVIATION DISCUSSION

.UPDATE...THE LATEST RADAR WAS SHOWING A LARGE AREA OF RAIN ALONG
THE WA/OR CASCADES IN ASSOCIATION WITH A COLD FRONT THAT IS FORECAST
TO MOVE ACROSS THE REGION TODAY. SHOWERS WERE DEVELOPING AHEAD OF
THE FRONT OVER THE COLUMBIA BASIN AND THIS SHOULD EXPAND IN COVERAGE
THROUGHOUT THE DAY. THE FRONT WILL WORK ITS WAY EAST AND POSITION
ITSELF ALONG THE WA/OR FOOTHILLS AND BLUE MOUNTAINS LATER THIS
AFTERNOON. THE SHOWERS SHOULD DECREASE OVER THE YKM/ELN VALLEYS AND
OVER AND NEAR THE CENTRAL OREGON THIS EVENING AS DRIER AIR WORKS ITS
WAY INTO THE REGION. OTHERWISE AFTERNOON TEMPERATURES WILL BE COOLER
THAN YESTERDAY.

&&

.AVIATION...18Z TAFS...A COLD FRONT AND ASSOCIATED RAIN IS CURRENTLY
ORIENTED SOUTH-TO-NORTH ALONG THE CASCADES AND IS ABOUT TO MOVE INTO
CENTRAL OREGON AND THEN SLOWLY MOVE EASTWARD OVER THE NEXT 24 HOURS.
THE FRONT WILL MOVE INTO EAST CENTRAL OREGON THIS AFTERNOON AND THE
COLD FRONT WILL BECOME STATIONARY OVER THE BLUE MOUNTAIN FOOTHILLS
AS WELL AS THE BLUE MOUNTAINS TONIGHT THROUGH SATURDAY AFTERNOON. AS
SUCH CONTINUOUS RAIN AND LOW CIGS RESULTING IN IFR/MVFR CONDITIONS
WILL OCCUR AT KPDT AND KALW BEGINNING AROUND 01ST/06Z. KPSC WILL BE
NEAR THE WESTERN FRINGE OF THE RAIN BAND ASSOCIATED WITH THE COLD
FRONT AND THUS MAY GET SOME LIGHT RAIN STARTING AROUND 01ST/15Z.
CONDITIONS WILL WORSEN ALONG THE AIR TRAFFIC ROUTE OVER THE BLUE
MOUNTAINS BETWEEN KPDT AND KBKE AND BECOME MVFR BY 22Z AS CIGS LOWER
AND RAIN BEGINS OVER THE ELKHORNS AND THEN SPREADS NORTH TO TOLLGATE
WITH LIFR/IFR CONDITIONS AFT 01ST/02Z. OTHERWISE, TAF SITES WILL
HAVE CIGS, WHICH ARE EXPECTED TO FLUCTUATE FROM SCT-BKN, WITH CLOUD
BASES OF 3000-6000 FT AGL. WINDS WILL BE 5-10 KTS.  POLAN

&&

.PREVIOUS DISCUSSION... /ISSUED 434 AM PDT FRI OCT 31 2014/

SHORT TERM...TODAY THROUGH SUNDAY...AN UPPER TROUGH IS DIGGING OFF
THE COAST CAUSING A SOUTH TO SOUTHWEST FLOW ALOFT OVER THE FORECAST
AREA. A COLD FRONT ASSOCIATED WITH THE UPPER TROUGH IS MOVING VERY
SLOWLY INTO THE CASCADES AT THIS TIME. RAIN HAS BEEN FALLING OVER
THE EAST SLOPES AND INTO THE WESTERN YAKIMA AND KITTITAS VALLEYS.
ELSEWHERE THERE ARE A FEW SHOWERS BUT IT IS DRY FOR THE MOST PART.
AN UPPER LEVEL JET IS PARALLEL TO THE COLD FRONT WHICH IS WHY IT IS
MOVING SO SLOWLY. IT IS EXPECTED TO MOVE EAST TO THE BLUE MOUNTAINS
BY 00Z THIS AFTERNOON AND THEN IT WILL GET HUNG UP OVER THE BLUES AS
A SURFACE LOW DEEPENS OVER IDAHO AND SOUTHWEST MONTANA. THIS WILL
RESULT IN A PROLONGED PERIOD OF RAIN AND HIGHER MOUNTAIN SNOW IN THE
BLUES...WALLOWA AND ELKHORN MOUNTAINS THROUGH SATURDAY EVENING.
COLDER AIR MOVING IN BEHIND THE COLD FRONT WILL CAUSE SNOW LEVELS TO
DROP TO AROUND 4500 FEET BY 00Z SUNDAY AND THEN THEY WILL BE NEARLY
STEADY AFTER THAT. THERE COULD BE SOME SNOW ACCUMULATIONS IN THE
BLUE MOUNTAINS ABOVE 4500 FEET FROM SATURDAY AFTERNOON THROUGH
SUNDAY MORNING...BUT ANY SNOW ACCUMULATION IS EXPECTED TO BE LIGHT
WITH PERHAPS A FEW INCHES. THE COLD FRONT WILL MOVE OUT OF THE AREA
BY SUNDAY AFTERNOON WITH DRYING TAKING PLACE FROM WEST TO EAST.
TEMPERATURES WILL BEGIN NEAR NORMAL TODAY AND THEN WILL COOL TO
ABOUT 3 TO 5 DEGREES BELOW NORMAL ON SATURDAY AND SUNDAY. WINDS WILL
BE LOCALLY BREEZY AT TIMES SATURDAY AFTERNOON AND NIGHT OVER NORTH
CENTRAL OREGON...OTHERWISE EXPECT MOSTLY LIGHT WINDS. 88

LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...A LOW PRESSURE
SYSTEM FROM THE GULF OF ALASKA WILL TRANSPORT MOISTURE ACROSS THE
INTERIOR PACIFIC NORTHWEST FOR MUCH OF THE EXTENDED. THE
AFOREMENTIONED LOW WILL THEN DEEPEN OFF THE OR/WA COAST AND PROVIDE
A MORE WARM SOUTHERLY FLOW TO THE AREA BY MIDWEEK.  THE BEST BREAK
IN PRECIPITATION LOOKS TO BE THURSDAY.  MID AND HIGH LEVEL CLOUDS
ARE EXPECTED TO REMAIN WITH THIS SOUTHERLY FLOW...BUT THE EAST
SLOPES OF THE CASCADES WILL STILL HOLD ONTO A CHANCE TO LIKELY
SHOWERS ALONG THE CREST.  EXPECT THE CHANCE FOR PRECIPITATION TO
SPREAD ACROSS THE FORECAST AREA THURSDAY NIGHT AS THE COLD FRONT
PASSES.  WHILE TEMPERATURES WILL BE NOTICEABLY COOLER AFTER THE
FRONTAL PASSAGE...MODELS DO NOT ANTICIPATE SNOW LEVELS TO FALL BELOW
6000 FT. WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  40  51  36 /  70  60  50  10
ALW  57  44  51  39 /  70  60  50  20
PSC  57  42  55  37 /  60  50  30  10
YKM  54  36  54  34 /  70  20  10  10
HRI  56  40  55  37 /  60  50  30  10
ELN  51  36  50  33 /  70  20  10  10
RDM  50  31  48  28 /  80  60  10  10
LGD  58  41  46  34 /  50  70  70  30
GCD  56  38  46  33 /  60  70  60  30
DLS  56  42  54  41 /  80  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

97/99/88/89








000
FXUS66 KPDT 311519 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
810 AM PDT FRI OCT 31 2014

.UPDATE...THE LATEST RADAR WAS SHOWING A LARGE AREA OF RAIN ALONG
THE WA/OR CASCADES IN ASSOCIATION WITH A COLD FRONT THAT IS FORECAST
TO MOVE ACROSS THE REGION TODAY. SHOWERS WERE DEVELOPING AHEAD OF
THE FRONT OVER THE COLUMBIA BASIN AND THIS SHOULD EXPAND IN COVERAGE
THROUGHOUT THE DAY. THE FRONT WILL WORK ITS WAY EAST AND POSITION
ITSELF ALONG THE WA/OR FOOTHILLS AND BLUE MOUNTAINS LATER THIS
AFTERNOON. THE SHOWERS SHOULD DECREASE OVER THE YKM/ELN VALLEYS AND
OVER AND NEAR THE CENTRAL OREGON THIS EVENING AS DRIER AIR WORKS ITS
WAY INTO THE REGION. OTHERWISE AFTERNOON TEMPERATURES WILL BE COOLER
THAN YESTERDAY.

&&

.PREV DISC... /ISSUED 434 AM PDT FRI OCT 31 2014/

SHORT TERM...TODAY THROUGH SUNDAY...AN UPPER TROUGH IS DIGGING OFF
THE COAST CAUSING A SOUTH TO SOUTHWEST FLOW ALOFT OVER THE FORECAST
AREA. A COLD FRONT ASSOCIATED WITH THE UPPER TROUGH IS MOVING VERY
SLOWLY INTO THE CASCADES AT THIS TIME. RAIN HAS BEEN FALLING OVER
THE EAST SLOPES AND INTO THE WESTERN YAKIMA AND KITTITAS VALLEYS.
ELSEWHERE THERE ARE A FEW SHOWERS BUT IT IS DRY FOR THE MOST PART.
AN UPPER LEVEL JET IS PARALLEL TO THE COLD FRONT WHICH IS WHY IT IS
MOVING SO SLOWLY. IT IS EXPECTED TO MOVE EAST TO THE BLUE MOUNTAINS
BY 00Z THIS AFTERNOON AND THEN IT WILL GET HUNG UP OVER THE BLUES AS
A SURFACE LOW DEEPENS OVER IDAHO AND SOUTHWEST MONTANA. THIS WILL
RESULT IN A PROLONGED PERIOD OF RAIN AND HIGHER MOUNTAIN SNOW IN THE
BLUES...WALLOWA AND ELKHORN MOUNTAINS THROUGH SATURDAY EVENING.
COLDER AIR MOVING IN BEHIND THE COLD FRONT WILL CAUSE SNOW LEVELS TO
DROP TO AROUND 4500 FEET BY 00Z SUNDAY AND THEN THEY WILL BE NEARLY
STEADY AFTER THAT. THERE COULD BE SOME SNOW ACCUMULATIONS IN THE
BLUE MOUNTAINS ABOVE 4500 FEET FROM SATURDAY AFTERNOON THROUGH
SUNDAY MORNING...BUT ANY SNOW ACCUMULATION IS EXPECTED TO BE LIGHT
WITH PERHAPS A FEW INCHES. THE COLD FRONT WILL MOVE OUT OF THE AREA
BY SUNDAY AFTERNOON WITH DRYING TAKING PLACE FROM WEST TO EAST.
TEMPERATURES WILL BEGIN NEAR NORMAL TODAY AND THEN WILL COOL TO
ABOUT 3 TO 5 DEGREES BELOW NORMAL ON SATURDAY AND SUNDAY. WINDS WILL
BE LOCALLY BREEZY AT TIMES SATURDAY AFTERNOON AND NIGHT OVER NORTH
CENTRAL OREGON...OTHERWISE EXPECT MOSTLY LIGHT WINDS. 88

LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...A LOW PRESSURE
SYSTEM FROM THE GULF OF ALASKA WILL TRANSPORT MOISTURE ACROSS THE
INTERIOR PACIFIC NORTHWEST FOR MUCH OF THE EXTENDED. THE
AFOREMENTIONED LOW WILL THEN DEEPEN OFF THE OR/WA COAST AND PROVIDE
A MORE WARM SOUTHERLY FLOW TO THE AREA BY MIDWEEK.  THE BEST BREAK
IN PRECIPITATION LOOKS TO BE THURSDAY.  MID AND HIGH LEVEL CLOUDS
ARE EXPECTED TO REMAIN WITH THIS SOUTHERLY FLOW...BUT THE EAST
SLOPES OF THE CASCADES WILL STILL HOLD ONTO A CHANCE TO LIKELY
SHOWERS ALONG THE CREST.  EXPECT THE CHANCE FOR PRECIPITATION TO
SPREAD ACROSS THE FORECAST AREA THURSDAY NIGHT AS THE COLD FRONT
PASSES.  WHILE TEMPERATURES WILL BE NOTICEABLY COOLER AFTER THE
FRONTAL PASSAGE...MODELS DO NOT ANTICIPATE SNOW LEVELS TO FALL BELOW
6000 FT. WEBER

AVIATION...12Z TAFS. FRONTAL BOUNDARY WITH STEADY RAIN OVER CENTRAL
OREGON/WASHINGTON CONTINUES TO MOVE SLOWLY EAST. LOW CEILINGS AND
FOG WILL CREATE MVFR/IFR CONDITIONS AT MOST TAF SITES THROUGH MID
MORNING.  EXPECT MOSTLY MVFR TO MARGINAL VFR CONDITIONS FROM 15Z
ONWARD. CIGS ARE EXPECTED TO CHANGE FROM SCT-BKN CHANGING CATEGORIES
FREQUENTLY OVER SHORT PERIODS OF TIME...ESPECIALLY WHEN
PRECIPITATION IS NEARBY.  WINDS MAINLY 5-15KT.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  40  51  36 /  70  60  50  10
ALW  57  44  51  39 /  70  60  50  20
PSC  57  42  55  37 /  60  50  30  10
YKM  54  36  54  34 /  70  20  10  10
HRI  56  40  55  37 /  60  50  30  10
ELN  51  36  50  33 /  70  20  10  10
RDM  50  31  48  28 /  80  60  10  10
LGD  58  41  46  34 /  50  70  70  30
GCD  56  38  46  33 /  60  70  60  30
DLS  56  42  54  41 /  80  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

97/










000
FXUS66 KPDT 311134 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
434 AM PDT FRI OCT 31 2014

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH SUNDAY...AN UPPER TROUGH IS DIGGING OFF
THE COAST CAUSING A SOUTH TO SOUTHWEST FLOW ALOFT OVER THE FORECAST
AREA. A COLD FRONT ASSOCIATED WITH THE UPPER TROUGH IS MOVING VERY
SLOWLY INTO THE CASCADES AT THIS TIME. RAIN HAS BEEN FALLING OVER
THE EAST SLOPES AND INTO THE WESTERN YAKIMA AND KITTITAS VALLEYS.
ELSEWHERE THERE ARE A FEW SHOWERS BUT IT IS DRY FOR THE MOST PART.
AN UPPER LEVEL JET IS PARALLEL TO THE COLD FRONT WHICH IS WHY IT IS
MOVING SO SLOWLY. IT IS EXPECTED TO MOVE EAST TO THE BLUE MOUNTAINS
BY 00Z THIS AFTERNOON AND THEN IT WILL GET HUNG UP OVER THE BLUES AS
A SURFACE LOW DEEPENS OVER IDAHO AND SOUTHWEST MONTANA. THIS WILL
RESULT IN A PROLONGED PERIOD OF RAIN AND HIGHER MOUNTAIN SNOW IN THE
BLUES...WALLOWA AND ELKHORN MOUNTAINS THROUGH SATURDAY EVENING.
COLDER AIR MOVING IN BEHIND THE COLD FRONT WILL CAUSE SNOW LEVELS TO
DROP TO AROUND 4500 FEET BY 00Z SUNDAY AND THEN THEY WILL BE NEARLY
STEADY AFTER THAT. THERE COULD BE SOME SNOW ACCUMULATIONS IN THE
BLUE MOUNTAINS ABOVE 4500 FEET FROM SATURDAY AFTERNOON THROUGH
SUNDAY MORNING...BUT ANY SNOW ACCUMULATION IS EXPECTED TO BE LIGHT
WITH PERHAPS A FEW INCHES. THE COLD FRONT WILL MOVE OUT OF THE AREA
BY SUNDAY AFTERNOON WITH DRYING TAKING PLACE FROM WEST TO EAST.
TEMPERATURES WILL BEGIN NEAR NORMAL TODAY AND THEN WILL COOL TO
ABOUT 3 TO 5 DEGREES BELOW NORMAL ON SATURDAY AND SUNDAY. WINDS WILL
BE LOCALLY BREEZY AT TIMES SATURDAY AFTERNOON AND NIGHT OVER NORTH
CENTRAL OREGON...OTHERWISE EXPECT MOSTLY LIGHT WINDS. 88

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...A LOW PRESSURE
SYSTEM FROM THE GULF OF ALASKA WILL TRANSPORT MOISTURE ACROSS THE
INTERIOR PACIFIC NORTHWEST FOR MUCH OF THE EXTENDED. THE
AFOREMENTIONED LOW WILL THEN DEEPEN OFF THE OR/WA COAST AND PROVIDE
A MORE WARM SOUTHERLY FLOW TO THE AREA BY MIDWEEK.  THE BEST BREAK
IN PRECIPITATION LOOKS TO BE THURSDAY.  MID AND HIGH LEVEL CLOUDS
ARE EXPECTED TO REMAIN WITH THIS SOUTHERLY FLOW...BUT THE EAST
SLOPES OF THE CASCADES WILL STILL HOLD ONTO A CHANCE TO LIKELY
SHOWERS ALONG THE CREST.  EXPECT THE CHANCE FOR PRECIPITATION TO
SPREAD ACROSS THE FORECAST AREA THURSDAY NIGHT AS THE COLD FRONT
PASSES.  WHILE TEMPERATURES WILL BE NOTICEABLY COOLER AFTER THE
FRONTAL PASSAGE...MODELS DO NOT ANTICIPATE SNOW LEVELS TO FALL BELOW
6000 FT. WEBER

&&

.AVIATION...12Z TAFS. FRONTAL BOUNDARY WITH STEADY RAIN OVER CENTRAL
OREGON/WASHINGTON CONTINUES TO MOVE SLOWLY EAST. LOW CEILINGS AND
FOG WILL CREATE MVFR/IFR CONDITIONS AT MOST TAF SITES THROUGH MID
MORNING.  EXPECT MOSTLY MVFR TO MARGINAL VFR CONDITIONS FROM 15Z
ONWARD. CIGS ARE EXPECTED TO CHANGE FROM SCT-BKN CHANGING CATEGORIES
FREQUENTLY OVER SHORT PERIODS OF TIME...ESPECIALLY WHEN
PRECIPITATION IS NEARBY.  WINDS MAINLY 5-15KT.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  40  51  36 /  70  60  50  10
ALW  57  44  51  39 /  70  60  50  20
PSC  57  42  55  37 /  60  50  30  10
YKM  54  36  54  34 /  70  20  10  10
HRI  56  40  55  37 /  60  50  30  10
ELN  51  36  50  33 /  70  20  10  10
RDM  50  31  48  28 /  80  60  10  10
LGD  58  41  46  34 /  50  70  70  30
GCD  56  38  46  33 /  60  70  60  30
DLS  56  42  54  41 /  80  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

88/89/89








000
FXUS66 KPDT 310843
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
143 AM PDT FRI OCT 31 2014

.SHORT TERM...TODAY THROUGH SUNDAY...AN UPPER TROUGH IS DIGGING OFF
THE COAST CAUSING A SOUTH TO SOUTHWEST FLOW ALOFT OVER THE FORECAST
AREA. A COLD FRONT ASSOCIATED WITH THE UPPER TROUGH IS MOVING VERY
SLOWLY INTO THE CASCADES AT THIS TIME. RAIN HAS BEEN FALLING OVER
THE EAST SLOPES AND INTO THE WESTERN YAKIMA AND KITTITAS VALLEYS.
ELSEWHERE THERE ARE A FEW SHOWERS BUT IT IS DRY FOR THE MOST PART.
AN UPPER LEVEL JET IS PARALLEL TO THE COLD FRONT WHICH IS WHY IT IS
MOVING SO SLOWLY. IT IS EXPECTED TO MOVE EAST TO THE BLUE MOUNTAINS
BY 00Z THIS AFTERNOON AND THEN IT WILL GET HUNG UP OVER THE BLUES AS
A SURFACE LOW DEEPENS OVER IDAHO AND SOUTHWEST MONTANA. THIS WILL
RESULT IN A PROLONGED PERIOD OF RAIN AND HIGHER MOUNTAIN SNOW IN THE
BLUES...WALLOWA AND ELKHORN MOUNTAINS THROUGH SATURDAY EVENING.
COLDER AIR MOVING IN BEHIND THE COLD FRONT WILL CAUSE SNOW LEVELS TO
DROP TO AROUND 4500 FEET BY 00Z SUNDAY AND THEN THEY WILL BE NEARLY
STEADY AFTER THAT. THERE COULD BE SOME SNOW ACCUMULATIONS IN THE
BLUE MOUNTAINS ABOVE 4500 FEET FROM SATURDAY AFTERNOON THROUGH
SUNDAY MORNING...BUT ANY SNOW ACCUMULATION IS EXPECTED TO BE LIGHT
WITH PERHAPS A FEW INCHES. THE COLD FRONT WILL MOVE OUT OF THE AREA
BY SUNDAY AFTERNOON WITH DRYING TAKING PLACE FROM WEST TO EAST.
TEMPERATURES WILL BEGIN NEAR NORMAL TODAY AND THEN WILL COOL TO
ABOUT 3 TO 5 DEGREES BELOW NORMAL ON SATURDAY AND SUNDAY. WINDS WILL
BE LOCALLY BREEZY AT TIMES SATURDAY AFTERNOON AND NIGHT OVER NORTH
CENTRAL OREGON...OTHERWISE EXPECT MOSTLY LIGHT WINDS. 88

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...A LOW PRESSURE
SYSTEM FROM THE GULF OF ALASKA WILL TRANSPORT MOISTURE ACROSS THE
INTERIOR PACIFIC NORTHWEST FOR MUCH OF THE EXTENDED. THE
AFOREMENTIONED LOW WILL THEN DEEPEN OFF THE OR/WA COAST AND PROVIDE
A MORE WARM SOUTHERLY FLOW TO THE AREA BY MIDWEEK.  THE BEST BREAK
IN PRECIPITATION LOOKS TO BE THURSDAY.  MID AND HIGH LEVEL CLOUDS
ARE EXPECTED TO REMAIN WITH THIS SOUTHERLY FLOW...BUT THE EAST
SLOPES OF THE CASCADES WILL STILL HOLD ONTO A CHANCE TO LIKELY
SHOWERS ALONG THE CREST.  EXPECT THE CHANCE FOR PRECIPITATION TO
SPREAD ACROSS THE FORECAST AREA THURSDAY NIGHT AS THE COLD FRONT
PASSES.  WHILE TEMPERATURES WILL BE NOTICEABLY COOLER AFTER THE
FRONTAL PASSAGE...MODELS DO NOT ANTICIPATE SNOW LEVELS TO FALL BELOW
6000 FT. WEBER

&&

.AVIATION...PREVIOUS DISCUSSION....06Z TAFS. FRONTAL BOUNDARY WITH
STEADY RAIN OVER CENTRAL OREGON/WASHINGTON WILL MOVE SLOWLY EAST
TONIGHT INTO FRIDAY. LOW CEILINGS AND FOG WILL CREATE MVFR/IFR
CONDITIONS AT MOST TAF SITES OVERNIGHT INTO FRIDAY. WINDS MAINLY
5-15KT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  40  51  36 /  70  60  50  10
ALW  57  44  51  39 /  70  60  50  20
PSC  57  42  55  37 /  60  50  30  10
YKM  54  36  54  34 /  70  20  10  10
HRI  56  40  55  37 /  60  50  30  10
ELN  51  36  50  33 /  70  20  10  10
RDM  50  31  48  28 /  80  60  10  10
LGD  58  41  46  34 /  50  70  70  30
GCD  56  38  46  33 /  60  70  60  30
DLS  56  42  54  41 /  80  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

88/89/89










000
FXUS66 KPDT 310538
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1030 PM PDT THU OCT 30 2014

.SHORT TERM...LARGE UPPER LEVEL LOW APPROACHING THE PACIFIC
NORTHWEST. COLD FRONTAL BOUNDARY LOCATED ALONG THE COAST THIS
EVENING. AHEAD OF THIS SYSTEM SATELLITE SHOWS SKIES ARE CLOUDY
ACROSS WASHINGTON AND OREGON. RAIN HAS BEEN FOCUSED MOSTLY ALONG THE
CASCADES AND EAST SLOPES THIS EVENING AND WILL CONTINUE OVERNIGHT.
SOME OF THIS MAY BE HEAVY AT TIMES ESPECIALLY OVER THE WASHINGTON
CASCADES. THE UPPER LOW WILL SLOWLY PUSH THE COLD FRONT THROUGH THE
REGION ON FRIDAY. RAIN WILL SPREAD EAST WITH THE FRONT. A SURFACE
LOW WILL DEVELOP ON THE BOUNDARY FRIDAY NIGHT AND MOVE ACROSS IDAHO
INTO MONTANA ON SATURDAY. A LARGE PRECIP SHIELD WILL DEVELOP AND
KEEP RAIN FALLING OVER NORTHEAST OREGON AND SOUTHEAST WASHINGTON
INTO SATURDAY. COLDER AIR MOVING IN BEHIND THE FRONT WILL MEAN SNOW
FOR THE HIGHER MOUNTAINS ESPECIALLY THE WALLOWA AND BLUES. CLOUD
COVER AND A COLDER AIRMASS WILL KEEP TEMPERATURES CLOSER TO NORMAL
THE NEXT FEW DAYS WITH HIGHS MOSTLY IN THE 40S AND 50S. HAVE ADDED
PATCHY FOG TO THE FORECAST FOR TONIGHT AND FRIDAY MORNING FOR THE
COLUMBIA BASIN AND ADJACENT VALLEYS. LOW LEVEL INVERSION AND HIGH
DEW POINTS INDICATE FOG COVERAGE WILL INCREASE. 94

.AVIATION...06Z TAFS. FRONTAL BOUNDARY WITH STEADY RAIN OVER CENTRAL
OREGON/WASHINGTON WILL MOVE SLOWLY EAST TONIGHT INTO FRIDAY. LOW
CEILINGS AND FOG WILL CREATE MVFR/IFR CONDITIONS AT MOST TAF SITES
OVERNIGHT INTO FRIDAY. WINDS MAINLY 5-15KT.

&&

.PREV DISC... /ISSUED 225 PM PDT THU OCT 30 2014/

SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A WARM FRONT MOVED
ACROSS AND NORTH OF THE AREA THIS MORNING TAKING MUCH OF THE RAIN
WITH IT EXCEPT ALONG THE WA CASCADES. THE SHOWERS WILL PERSIST
ACROSS THIS REGION UNTIL A COLD FRONT APPROACHES THE TWO STATE AREA
TOMORROW. THE FRONT IS FORECAST TO MOVE FROM WEST TO EAST ACROSS THE
AREA FRIDAY. SHOWERS WILL ACCOMPANY THE FRONT AS IT TRACKS ACROSS
OUR WESTERN ZONES FRIDAY MORNING BEFORE ARRIVING ALONG THE FOOTHILLS
OF THE BLUE MOUNTAINS FRIDAY AFTERNOON. SHOWERS ARE FORECAST TO
SPREAD INTO THE BLUE/WALLOWAS FRIDAY NIGHT AND REMAIN ACROSS THIS
AREA INTO SATURDAY. AS THE SHOWERS DRIFT AWAY FROM THE REGION SOME
DRIER AIR WILL MOVE INTO OUR ENTIRE AREA SATURDAY NIGHT.

BREEZY WEST WINDS ARE POSSIBLE FRIDAY WITH THE PASSAGE OF THE FRONT.
MEANWHILE AFTERNOON TEMPERATURES WILL RETURN TO NEAR NORMAL THIS
WEEKEND.

LONG TERM...SUNDAY THROUGH THURSDAY NIGHT...DRY CONDITIONS KICK IN
DURING THE DAYLIGHT HOURS ON SUNDAY AS HIGH PRESSURE BUILDS OVER
REGION IN THE WAKE OF A MID/UPPER LEVEL TROUGH WHICH WILL HAVE MOVED
INTO IDAHO/MONTANA BY DAYBREAK ON SUNDAY. DRY CONDITIONS REMAIN OVER
REGION SUNDAY NIGHT WHILE A WARM FRONT APPROACHES THE COAST MAKING
LANDFALL OVERNIGHT MONDAY. THE WARM FRONT BEGINS SPREADING RAIN EAST
OF THE CASCADES MONDAY MORNING WITH RAIN MAKING AN ENTRANCE IN
CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON BY LATE AFTERNOON.
MONDAY NIGHT THE WARM FRONT SWEEPS ACROSS FORECAST AREA BRINGING
RAIN LIKELY AREAWIDE. THE WARM FRONT PERSISTS OVER REGION DURING
DAYLIGHT HOURS ON MONDAY, WHICH KEEPS HIGH POPS OVER MOUNTAINS AND
FOOTHILLS OF THE BLUE MOUNTAINS THROUGH MONDAY AFTERNOON. THE WARM
AIR BRINGS ADDITIONAL RAIN TO MOUNTAINS MONDAY NIGHT WITH A COLD
FRONT SWEEPING ACROSS FORECAST ON TUESDAY FOR MORE RAIN. WEDNESDAY
AND THURSDAY HIGH PRESSURE BUILDS OVER CWA FOR MAINLY DRY
CONDITIONS. POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  58  40  51 /  10  70  70  20
ALW  50  60  44  53 /  10  70  70  30
PSC  48  60  42  56 /  10  60  60  10
YKM  46  57  36  55 /  70  70  20  10
HRI  46  59  40  56 /  10  60  60  10
ELN  45  54  36  51 /  80  70  20  10
RDM  43  53  31  48 /  40  80  50  10
LGD  46  60  41  46 /  10  50  70  70
GCD  44  58  38  47 /  10  60  70  60
DLS  50  58  42  55 /  80  80  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

94







000
FXUS66 KPDT 310223
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
722 PM PDT THU OCT 30 2014

.SHORT TERM...LARGE UPPER LEVEL LOW APPROACHING THE PACIFIC
NORTHWEST. COLD FRONTAL BOUNDARY LOCATED ALONG THE COAST THIS
EVENING. AHEAD OF THIS SYSTEM SATELLITE SHOWS SKIES ARE CLOUDY
ACROSS WASHINGTON AND OREGON. RAIN HAS BEEN FOCUSED MOSTLY ALONG THE
CASCADES AND EAST SLOPES THIS EVENING AND WILL CONTINUE OVERNIGHT.
SOME OF THIS MAY BE HEAVY AT TIMES ESPECIALLY OVER THE WASHINGTON
CASCADES. THE UPPER LOW WILL SLOWLY PUSH THE COLD FRONT THROUGH THE
REGION ON FRIDAY. RAIN WILL SPREAD EAST WITH THE FRONT. A SURFACE
LOW WILL DEVELOP ON THE BOUNDARY FRIDAY NIGHT AND MOVE ACROSS IDAHO
INTO MONTANA ON SATURDAY. A LARGE PRECIP SHIELD WILL DEVELOP AND
KEEP RAIN FALLING OVER NORTHEAST OREGON AND SOUTHEAST WASHINGTON
INTO SATURDAY. COLDER AIR MOVING IN BEHIND THE FRONT WILL MEAN SNOW
FOR THE HIGHER MOUNTAINS ESPECIALLY THE WALLOWA AND BLUES. CLOUD
COVER AND A COLDER AIRMASS WILL KEEP TEMPERATURES CLOSER TO NORMAL
THE NEXT FEW DAYS WITH HIGHS MOSTLY IN THE 40S AND 50S. HAVE ADDED
PATCHY FOG TO THE FORECAST FOR TONIGHT AND FRIDAY MORNING FOR THE
COLUMBIA BASIN AND ADJACENT VALLEYS. LOW LEVEL INVERSION AND HIGH
DEW POINTS INDICATE FOG COVERAGE WILL INCREASE. 94

&&

.PREV DISC... /ISSUED 225 PM PDT THU OCT 30 2014/

SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A WARM FRONT MOVED
ACROSS AND NORTH OF THE AREA THIS MORNING TAKING MUCH OF THE RAIN
WITH IT EXCEPT ALONG THE WA CASCADES. THE SHOWERS WILL PERSIST
ACROSS THIS REGION UNTIL A COLD FRONT APPROACHES THE TWO STATE AREA
TOMORROW. THE FRONT IS FORECAST TO MOVE FROM WEST TO EAST ACROSS THE
AREA FRIDAY. SHOWERS WILL ACCOMPANY THE FRONT AS IT TRACKS ACROSS
OUR WESTERN ZONES FRIDAY MORNING BEFORE ARRIVING ALONG THE FOOTHILLS
OF THE BLUE MOUNTAINS FRIDAY AFTERNOON. SHOWERS ARE FORECAST TO
SPREAD INTO THE BLUE/WALLOWAS FRIDAY NIGHT AND REMAIN ACROSS THIS
AREA INTO SATURDAY. AS THE SHOWERS DRIFT AWAY FROM THE REGION SOME
DRIER AIR WILL MOVE INTO OUR ENTIRE AREA SATURDAY NIGHT.

BREEZY WEST WINDS ARE POSSIBLE FRIDAY WITH THE PASSAGE OF THE FRONT.
MEANWHILE AFTERNOON TEMPERATURES WILL RETURN TO NEAR NORMAL THIS
WEEKEND.

LONG TERM...SUNDAY THROUGH THURSDAY NIGHT...DRY CONDITIONS KICK IN
DURING THE DAYLIGHT HOURS ON SUNDAY AS HIGH PRESSURE BUILDS OVER
REGION IN THE WAKE OF A MID/UPPER LEVEL TROUGH WHICH WILL HAVE MOVED
INTO IDAHO/MONTANA BY DAYBREAK ON SUNDAY. DRY CONDITIONS REMAIN OVER
REGION SUNDAY NIGHT WHILE A WARM FRONT APPROACHES THE COAST MAKING
LANDFALL OVERNIGHT MONDAY. THE WARM FRONT BEGINS SPREADING RAIN EAST
OF THE CASCADES MONDAY MORNING WITH RAIN MAKING AN ENTRANCE IN
CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON BY LATE AFTERNOON.
MONDAY NIGHT THE WARM FRONT SWEEPS ACROSS FORECAST AREA BRINGING
RAIN LIKELY AREAWIDE. THE WARM FRONT PERSISTS OVER REGION DURING
DAYLIGHT HOURS ON MONDAY, WHICH KEEPS HIGH POPS OVER MOUNTAINS AND
FOOTHILLS OF THE BLUE MOUNTAINS THROUGH MONDAY AFTERNOON. THE WARM
AIR BRINGS ADDITIONAL RAIN TO MOUNTAINS MONDAY NIGHT WITH A COLD
FRONT SWEEPING ACROSS FORECAST ON TUESDAY FOR MORE RAIN. WEDNESDAY
AND THURSDAY HIGH PRESSURE BUILDS OVER CWA FOR MAINLY DRY
CONDITIONS. POLAN

AVIATION...00Z TAFS...A WARM FRONT HAS MOVED NORTH AND EXITED THE
FORECAST AREA RESULTING IN IMPROVING CONDITIONS. VFR WILL PREVAIL
FOR REMAINDER OF THIS AFTERNOON INTO THIS EVENING, EXCEPT KALW MAY
SEE MVFR FROM HZ FOR A FEW HOURS UNTIL AROUND DUSK. CONDITIONS WILL
DETERIORATE TO VFR/IFR AT KDLS, KYKM, KRDM AND KBDN OVERNIGHT DUE
THE COLD FRONT BRINGING LOWERING CIGS WITH STEADY RAIN SPREADING
EAST ACROSS REGION. RAIN STARTS AT KDLS AROUND 31ST/01Z, THEN AT
KYKM BY 04Z, KRDM AND KBDN BY 08Z, KPSC AND KPDT BY 13Z, AND KALW BY
14Z. WINDS AOB 10 KTS ARE EXPECTED DURING THE NEXT 24 HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  58  40  51 /  10  70  70  20
ALW  50  60  44  53 /  10  70  70  30
PSC  48  60  42  56 /  10  60  60  10
YKM  46  57  36  55 /  70  70  20  10
HRI  46  59  40  56 /  10  60  60  10
ELN  45  54  36  51 /  80  70  20  10
RDM  43  53  31  48 /  40  80  50  10
LGD  46  60  41  46 /  10  50  70  70
GCD  44  58  38  47 /  10  60  70  60
DLS  50  58  42  55 /  80  80  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

94/99/76










000
FXUS66 KPDT 302134
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
225 PM PDT THU OCT 30 2014

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A WARM FRONT MOVED
ACROSS AND NORTH OF THE AREA THIS MORNING TAKING MUCH OF THE RAIN
WITH IT EXCEPT ALONG THE WA CASCADES. THE SHOWERS WILL PERSIST
ACROSS THIS REGION UNTIL A COLD FRONT APPROACHES THE TWO STATE AREA
TOMORROW. THE FRONT IS FORECAST TO MOVE FROM WEST TO EAST ACROSS THE
AREA FRIDAY. SHOWERS WILL ACCOMPANY THE FRONT AS IT TRACKS ACROSS
OUR WESTERN ZONES FRIDAY MORNING BEFORE ARRIVING ALONG THE FOOTHILLS
OF THE BLUE MOUNTAINS FRIDAY AFTERNOON. SHOWERS ARE FORECAST TO
SPREAD INTO THE BLUE/WALLOWAS FRIDAY NIGHT AND REMAIN ACROSS THIS
AREA INTO SATURDAY. AS THE SHOWERS DRIFT AWAY FROM THE REGION SOME
DRIER AIR WILL MOVE INTO OUR ENTIRE AREA SATURDAY NIGHT.

BREEZY WEST WINDS ARE POSSIBLE FRIDAY WITH THE PASSAGE OF THE FRONT.
MEANWHILE AFTERNOON TEMPERATURES WILL RETURN TO NEAR NORMAL THIS
WEEKEND.

.LONG TERM...SUNDAY THROUGH THURSDAY NIGHT...DRY CONDITIONS KICK IN
DURING THE DAYLIGHT HOURS ON SUNDAY AS HIGH PRESSURE BUILDS OVER
REGION IN THE WAKE OF A MID/UPPER LEVEL TROUGH WHICH WILL HAVE MOVED
INTO IDAHO/MONTANA BY DAYBREAK ON SUNDAY. DRY CONDITIONS REMAIN OVER
REGION SUNDAY NIGHT WHILE A WARM FRONT APPROACHES THE COAST MAKING
LANDFALL OVERNIGHT MONDAY. THE WARM FRONT BEGINS SPREADING RAIN EAST
OF THE CASCADES MONDAY MORNING WITH RAIN MAKING AN ENTRANCE IN
CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON BY LATE AFTERNOON.
MONDAY NIGHT THE WARM FRONT SWEEPS ACROSS FORECAST AREA BRINGING
RAIN LIKELY AREAWIDE. THE WARM FRONT PERSISTS OVER REGION DURING
DAYLIGHT HOURS ON MONDAY, WHICH KEEPS HIGH POPS OVER MOUNTAINS AND
FOOTHILLS OF THE BLUE MOUNTAINS THROUGH MONDAY AFTERNOON. THE WARM
AIR BRINGS ADDITIONAL RAIN TO MOUNTAINS MONDAY NIGHT WITH A COLD
FRONT SWEEPING ACROSS FORECAST ON TUESDAY FOR MORE RAIN. WEDNESDAY
AND THURSDAY HIGH PRESSURE BUILDS OVER CWA FOR MAINLY DRY
CONDITIONS. POLAN

&&

.AVIATION...00Z TAFS...A WARM FRONT HAS MOVED NORTH AND EXITED THE
FORECAST AREA RESULTING IN IMPROVING CONDITIONS. VFR WILL PREVAIL
FOR REMAINDER OF THIS AFTERNOON INTO THIS EVENING, EXCEPT KALW MAY
SEE MVFR FROM HZ FOR A FEW HOURS UNTIL AROUND DUSK. CONDITIONS WILL
DETERIORATE TO VFR/IFR AT KDLS, KYKM, KRDM AND KBDN OVERNIGHT DUE
THE COLD FRONT BRINGING LOWERING CIGS WITH STEADY RAIN SPREADING
EAST ACROSS REGION. RAIN STARTS AT KDLS AROUND 31ST/01Z, THEN AT
KYKM BY 04Z, KRDM AND KBDN BY 08Z, KPSC AND KPDT BY 13Z, AND KALW BY
14Z. WINDS AOB 10 KTS ARE EXPECTED DURING THE NEXT 24 HOURS.  POLAN


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  57  40  51 /  10  70  70  20
ALW  51  59  44  53 /  10  60  70  30
PSC  47  59  42  56 /  10  60  60  10
YKM  44  56  36  55 /  70  70  20  10
HRI  45  58  40  56 /  10  60  60  10
ELN  45  53  36  51 /  80  70  20  10
RDM  41  52  31  48 /  20  80  70  10
LGD  46  59  41  46 /  10  50  70  70
GCD  46  58  38  47 /  10  60  70  60
DLS  48  56  42  55 /  80  80  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

97/99/99










000
FXUS66 KPDT 301810 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1109 AM PDT THU OCT 30 2014

UPDATED AVIATION DISCUSSION

.UPDATE...A WARM FRONT WAS MOVING NORTH ACROSS THE REGION WITH AN
AREA OF RAIN FOLLOWING IT. THE BULK OF THE PCPN IS LOCATED ACROSS
NORTHERN OREGON AND SOUTHERN WA INCLUDING THE EAST SLOPES OF THE WA
CASCADES. MOST OF THE PCPN SHOULD CONTINUE MOVING NORTH. BY MIDDAY
PORTIONS OF THE REGION SHOULD BREAK INTO SOME SUNSHINE AND HIGH
TEMPERATURES SHOULD WARM ABOVE NORMAL. THEREFORE AFTERNOON
TEMPERATURES HAVE BEEN INCREASED A FEW DEGREES AND THE PRESENT SHORT
TERM FORECAST APPEARS ON TRACK FOR NOW.

&&

.AVIATION...18Z TAFS...A WARM FRONT MOVING NORTH IS STILL BRINGING
LIGHT RAIN TO KYKM, WHICH SHOULD END BY 21Z THIS AFTERNOON. MVFR
WILL CONTINUE AT KYKM AND KALW UNTIL 20Z-21Z TODAY, THEN IMPROVE TO
VFR. OTHERWISE, VFR CONDITIONS WILL PREVAIL THROUGH THIS EVENING.
CONDITIONS DETERIORATE TO VFR/IFR AT KDLS, KYKM, KRDM AND KBDN
OVERNIGHT DUE THE COLD FRONT BRINGING LOWERING CIGS WITH STEADY RAIN
SPREADING EAST ACROSS REGION. RAIN STARTS AT KDLS AROUND 31ST/01Z,
THEN AT KYKM BY 04Z, KRDM AND KBDN BY 08Z, KPSC AND KPDT BY 13Z, AND
KALW BY 14Z. WINDS AOB 10 KTS ARE EXPECTED DURING THE TAF PERIOD.
POLAN

&&

.PREVIOUS DISCUSSION... /ISSUED 420 AM PDT THU OCT 30 2014/

SHORT TERM...TODAY THROUGH SATURDAY...A WARM FRONT ASSOCIATED WITH
A DEVELOPING WEATHER SYSTEM ALONG THE COAST IS MOVING NORTHWARD
ACROSS THE FORECAST AREA THIS MORNING. MOST OF THE PRECIPITATION
WITH THIS FRONT IS OVER WESTERN AREAS FROM THE BLUE MOUNTAINS
WESTWARD AND NORTHWARD. HOWEVER DID NOT RULE OUT POSSIBLE LIGHT RAIN
OVER THE WALLOWA AND ELKHORN MOUNTAINS. THE WARM FRONT WILL BE TO
THE NORTH OF THE CWA BY 00Z THIS AFTERNOON. AFTER THAT A COLD FRONT
WILL BEGIN TO PUSH EASTWARD WITH THE WINDS SWITCHING TO THE
SOUTHWEST TO NORTHWEST TONIGHT. THIS WILL BE A SLOW MOVING COLD
FRONT WITH AN UPPER LEVEL JET STREAM PARALLEL TO IT. AS A RESULT
THERE WILL BE SIGNIFICANT RAINFALL OVER AND JUST TO THE EAST OF THE
CASCADES TONIGHT AND FRIDAY. ON FRIDAY THE FRONT WILL MAKE AN
ADVANCE TO THE EAST WITH THE PRECIPITATION SPREADING INTO THE LOWER
COLUMBIA BASIN SOUTHWARD ACROSS CENTRAL AND NORTH CENTRAL OREGON.
THE COLD FRONT WILL CONTINUE TO MOVE EASTWARD FINALLY REACHING THE
IDAHO BORDER BY FRIDAY EVENING (00Z-06Z SATURDAY) WITH LIKELY POPS
MOVING INTO THE BLUE MOUNTAINS EASTWARD LATE FRIDAY AFTERNOON AND
EVENING. AT THAT TIME THE LOW LEVEL FLOW WILL BECOME SOUTHWEST TO
NORTHWEST BEHIND THE COLD FRONT WHICH WILL BE DOWNSLOPE OFF THE
CASCADES. THIS WILL CAUSE RAIN SHADOWING OVER THE SIMCOE HIGHLANDS
NORTHWARD ACROSS THE YAKIMA AND KITTITAS VALLEYS WITH DECREASING
POPS THERE. DRYING WILL CONTINUE OVERNIGHT FRIDAY INTO SATURDAY
MORNING FROM WEST TO EAST. LIKELY TO CATEGORICAL POPS WILL CONTINUE
FROM THE BLUE MOUNTAINS EASTWARD ON SATURDAY. WEST OF THE BLUE
MOUNTAINS DRYING WILL TAKE PLACE WITH THE RAIN ENDING OVER THE LOWER
COLUMBIA BASIN AND CENTRAL/NORTH CENTRAL OREGON AS WELL AS THE
YAKIMA/KITTITAS VALLEYS. THE GFS MODEL HAS THE BEST HANDLE ON THE
TIMING OF THE COLD FRONT AND LEANED MOSTLY TO IT FOR THIS FORECAST
PACKAGE. THE AIR BEHIND THE COLD FRONT WILL BE SUBSTANTIALLY COOLER
WITH SNOW LEVELS DROPPING TO AROUND 4500 FEET OVER WESTERN
AREAS...CAUSING THE PRECIPITATION TO CHANGE OVER TO SNOW ABOVE THIS
LEVEL IN THE CASCADES BEFORE TAPING OFF. SINCE MOST OF THE
PRECIPITATION WILL HAVE MOVED EAST BY THAT TIME ANY SNOW
ACCUMULATIONS WILL BE VERY LIGHT IF ANY OVER THE HIGHER CASCADES.
DRYING WILL CONTINUE FROM WEST TO EAST IN THE EARLY EXTENDED PERIOD.
WINDS WILL BE LIGHT THROUGH THE SHORT TERM WITH THE EXCEPTION THAT
THEY WILL INCREASE OVER NORTH CENTRAL OREGON AND THE EASTERN
COLUMBIA RIVER GORGE SATURDAY AFTERNOON DUE TO MIXING OF HIGHER
WINDS ALOFT DOWN TO THE SURFACE BEHIND THE COLD FRONT. TEMPERATURES
WILL BE ABOVE NORMAL TODAY BY A FEW DEGREES...BUT COOLING TO NEAR
NORMAL ON FRIDAY AND THEN ABOUT 3 TO 6 DEGREES BELOW NORMAL ON
SATURDAY. THE MOST DRAMATIC COOLING WILL TAKE PLACE OVER THE WESTERN
CWA ON FRIDAY AND SATURDAY BEHIND THE SLOW MOVING COLD FRONT. 88

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN EXITING
UPPER LEVEL TROUGH WILL RESULT IN A GRADUAL DECREASE IN
PRECIPITATION CHANCES ACROSS THE LOWER COLUMBIA BASIN.  WRAPAROUND
MOISTURE AND NORTHERLY FLOW BEHIND THE EXITING SYSTEM MAY KEEP RAIN
BELOW 3500 FEET AND SNOW ABOVE 3500 FEET GOING THROUGH THE DAY
SUNDAY MAINLY OVER THE HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.
ANOTHER WEATHER SYSTEM WILL APPROACH THE REGION WITH AN ASSOCIATED
WARM FRONT THAT WILL MOVE ACROSS THE AREA MONDAY AFTERNOON AND
EVENING.  THIS WILL RESULT GRADUALLY INCREASING CHANCES OF
PRECIPITATION AGAIN WITH SNOW LEVELS RISING THROUGH THE DAY MONDAY
TO ABOUT 6500 FEET.  THE UPPER LEVEL SHORTWAVE TROUGH WILL MOVE
ACROSS THE REGION HEADING INTO TUESDAY BRINGING AT LEAST A SLIGHT
CHANCE OF RAIN WITH SNOW LEVELS CONTINUING TO RISE TO ABOUT 7500
FEET GIVEN THE SUBTROPICAL MOISTURE SOURCE.  MODEL SOLUTIONS DIVERGE
SOMEWHAT TUESDAY NIGHT AND WEDNESDAY WITH SOME INDICATIONS OF DRYING
FROM THE GFS AND THE DGEX...BUT THE ECMWF BRINGS ANOTHER MOISTURE
LADEN SHORTWAVE TROUGH TO THE REGION.  HAVE OPTED TO LOWER POPS SOME
BY BLENDING CLIMO TO THE PRIOR FORECAST.  TEMPERATURES DURING THE
PERIOD WILL BE NEAR NORMAL SUNDAY...WITH GRADUAL WARMING INCREASING
THE TEMPERATURES UP TO 10 DEGREES ABOVE NORMAL BY WEDNESDAY.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  60  46  56  40 /  20  10  70  70
ALW  61  49  58  44 /  20  10  60  70
PSC  58  45  58  42 /  30  10  60  60
YKM  56  42  55  36 /  80  70  70  20
HRI  59  43  57  40 /  30  10  60  60
ELN  55  43  52  36 /  90  80  70  20
RDM  63  39  51  31 /  20  20  80  70
LGD  62  44  58  39 /  20  10  50  70
GCD  64  44  57  38 /  10  10  60  70
DLS  60  46  55  42 / 100  80  80  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

97/99/88/98








000
FXUS66 KPDT 301610 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
858 AM PDT THU OCT 30 2014

.UPDATE...A WARM FRONT WAS MOVING NORTH ACROSS THE REGION WITH AN
AREA OF RAIN FOLLOWING IT. THE BULK OF THE PCPN IS LOCATED ACROSS
NORTHERN OREGON AND SOUTHERN WA INCLUDING THE EAST SLOPES OF THE WA
CASCADES. MOST OF THE PCPN SHOULD CONTINUE MOVING NORTH. BY MIDDAY
PORTIONS OF THE REGION SHOULD BREAK INTO SOME SUNSHINE AND HIGH
TEMPERATURES SHOULD WARM ABOVE NORMAL. THEREFORE AFTERNOON
TEMPERATURES HAVE BEEN INCREASED A FEW DEGREES AND THE PRESENT SHORT
TERM FORECAST APPEARS ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 420 AM PDT THU OCT 30 2014/

SHORT TERM...TODAY THROUGH SATURDAY...A WARM FRONT ASSOCIATED WITH
A DEVELOPING WEATHER SYSTEM ALONG THE COAST IS MOVING NORTHWARD
ACROSS THE FORECAST AREA THIS MORNING. MOST OF THE PRECIPITATION
WITH THIS FRONT IS OVER WESTERN AREAS FROM THE BLUE MOUNTAINS
WESTWARD AND NORTHWARD. HOWEVER DID NOT RULE OUT POSSIBLE LIGHT RAIN
OVER THE WALLOWA AND ELKHORN MOUNTAINS. THE WARM FRONT WILL BE TO
THE NORTH OF THE CWA BY 00Z THIS AFTERNOON. AFTER THAT A COLD FRONT
WILL BEGIN TO PUSH EASTWARD WITH THE WINDS SWITCHING TO THE
SOUTHWEST TO NORTHWEST TONIGHT. THIS WILL BE A SLOW MOVING COLD
FRONT WITH AN UPPER LEVEL JET STREAM PARALLEL TO IT. AS A RESULT
THERE WILL BE SIGNIFICANT RAINFALL OVER AND JUST TO THE EAST OF THE
CASCADES TONIGHT AND FRIDAY. ON FRIDAY THE FRONT WILL MAKE AN
ADVANCE TO THE EAST WITH THE PRECIPITATION SPREADING INTO THE LOWER
COLUMBIA BASIN SOUTHWARD ACROSS CENTRAL AND NORTH CENTRAL OREGON.
THE COLD FRONT WILL CONTINUE TO MOVE EASTWARD FINALLY REACHING THE
IDAHO BORDER BY FRIDAY EVENING (00Z-06Z SATURDAY) WITH LIKELY POPS
MOVING INTO THE BLUE MOUNTAINS EASTWARD LATE FRIDAY AFTERNOON AND
EVENING. AT THAT TIME THE LOW LEVEL FLOW WILL BECOME SOUTHWEST TO
NORTHWEST BEHIND THE COLD FRONT WHICH WILL BE DOWNSLOPE OFF THE
CASCADES. THIS WILL CAUSE RAIN SHADOWING OVER THE SIMCOE HIGHLANDS
NORTHWARD ACROSS THE YAKIMA AND KITTITAS VALLEYS WITH DECREASING
POPS THERE. DRYING WILL CONTINUE OVERNIGHT FRIDAY INTO SATURDAY
MORNING FROM WEST TO EAST. LIKELY TO CATEGORICAL POPS WILL CONTINUE
FROM THE BLUE MOUNTAINS EASTWARD ON SATURDAY. WEST OF THE BLUE
MOUNTAINS DRYING WILL TAKE PLACE WITH THE RAIN ENDING OVER THE LOWER
COLUMBIA BASIN AND CENTRAL/NORTH CENTRAL OREGON AS WELL AS THE
YAKIMA/KITTITAS VALLEYS. THE GFS MODEL HAS THE BEST HANDLE ON THE
TIMING OF THE COLD FRONT AND LEANED MOSTLY TO IT FOR THIS FORECAST
PACKAGE. THE AIR BEHIND THE COLD FRONT WILL BE SUBSTANTIALLY COOLER
WITH SNOW LEVELS DROPPING TO AROUND 4500 FEET OVER WESTERN
AREAS...CAUSING THE PRECIPITATION TO CHANGE OVER TO SNOW ABOVE THIS
LEVEL IN THE CASCADES BEFORE TAPING OFF. SINCE MOST OF THE
PRECIPITATION WILL HAVE MOVED EAST BY THAT TIME ANY SNOW
ACCUMULATIONS WILL BE VERY LIGHT IF ANY OVER THE HIGHER CASCADES.
DRYING WILL CONTINUE FROM WEST TO EAST IN THE EARLY EXTENDED PERIOD.
WINDS WILL BE LIGHT THROUGH THE SHORT TERM WITH THE EXCEPTION THAT
THEY WILL INCREASE OVER NORTH CENTRAL OREGON AND THE EASTERN
COLUMBIA RIVER GORGE SATURDAY AFTERNOON DUE TO MIXING OF HIGHER
WINDS ALOFT DOWN TO THE SURFACE BEHIND THE COLD FRONT. TEMPERATURES
WILL BE ABOVE NORMAL TODAY BY A FEW DEGREES...BUT COOLING TO NEAR
NORMAL ON FRIDAY AND THEN ABOUT 3 TO 6 DEGREES BELOW NORMAL ON
SATURDAY. THE MOST DRAMATIC COOLING WILL TAKE PLACE OVER THE WESTERN
CWA ON FRIDAY AND SATURDAY BEHIND THE SLOW MOVING COLD FRONT. 88

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN EXITING
UPPER LEVEL TROUGH WILL RESULT IN A GRADUAL DECREASE IN
PRECIPITATION CHANCES ACROSS THE LOWER COLUMBIA BASIN.  WRAPAROUND
MOISTURE AND NORTHERLY FLOW BEHIND THE EXITING SYSTEM MAY KEEP RAIN
BELOW 3500 FEET AND SNOW ABOVE 3500 FEET GOING THROUGH THE DAY
SUNDAY MAINLY OVER THE HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.
ANOTHER WEATHER SYSTEM WILL APPROACH THE REGION WITH AN ASSOCIATED
WARM FRONT THAT WILL MOVE ACROSS THE AREA MONDAY AFTERNOON AND
EVENING.  THIS WILL RESULT GRADUALLY INCREASING CHANCES OF
PRECIPITATION AGAIN WITH SNOW LEVELS RISING THROUGH THE DAY MONDAY
TO ABOUT 6500 FEET.  THE UPPER LEVEL SHORTWAVE TROUGH WILL MOVE
ACROSS THE REGION HEADING INTO TUESDAY BRINGING AT LEAST A SLIGHT
CHANCE OF RAIN WITH SNOW LEVELS CONTINUING TO RISE TO ABOUT 7500
FEET GIVEN THE SUBTROPICAL MOISTURE SOURCE.  MODEL SOLUTIONS DIVERGE
SOMEWHAT TUESDAY NIGHT AND WEDNESDAY WITH SOME INDICATIONS OF DRYING
FROM THE GFS AND THE DGEX...BUT THE ECMWF BRINGS ANOTHER MOISTURE
LADEN SHORTWAVE TROUGH TO THE REGION.  HAVE OPTED TO LOWER POPS SOME
BY BLENDING CLIMO TO THE PRIOR FORECAST.  TEMPERATURES DURING THE
PERIOD WILL BE NEAR NORMAL SUNDAY...WITH GRADUAL WARMING INCREASING
THE TEMPERATURES UP TO 10 DEGREES ABOVE NORMAL BY WEDNESDAY.  BIEDA

AVIATION...12Z TAFS...A WARM FRONT MOVING IS AFFECTING
KBDN...KRDM...KDLS AND KYKM THIS MORNING CAUSING PERIODS OF IFR TO
MVFR CONDITIONS WITH RAIN THAT WILL CONTINUE THRU 30/21Z.  IN
ADDITION...KALW IS EXPERIENCING LIFR TO IFR CONDITIONS DUE TO FOG
THAT SHOULD GRADUALLY START TO LIFT AFT 30/16Z AND DISSIPATE BY
30/18Z. A COLD FRONT WILL APPROACH THE CASCADES AFT 31/00Z AND BRING
RAIN...HEAVY AT TIMES...TO KBDN...KRDM...KDLS AND KYKM WITH IFR TO
MVFR CIG/VIS ONCE MORE. FOG MAY ONCE AGAIN FORM TONIGHT AFT 31/04Z
AT KPSC AND KALW WITH MVFR CONDITIONS FORECASTED PRESENTLY.  WINDS
AOB 10 KTS ARE EXPECTED DURING THE TAF PERIOD.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  60  46  56  40 /  20  10  70  70
ALW  61  49  58  44 /  20  10  60  70
PSC  58  45  58  42 /  30  10  60  60
YKM  56  42  55  36 /  80  70  70  20
HRI  59  43  57  40 /  30  10  60  60
ELN  55  43  52  36 /  90  80  70  20
RDM  63  39  51  31 /  20  20  80  70
LGD  62  44  58  39 /  20  10  50  70
GCD  64  44  57  38 /  10  10  60  70
DLS  60  46  55  42 / 100  80  80  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

97/










000
FXUS66 KPDT 301120 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
420 AM PDT THU OCT 30 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH SATURDAY...A WARM FRONT ASSOCIATED WITH
A DEVELOPING WEATHER SYSTEM ALONG THE COAST IS MOVING NORTHWARD
ACROSS THE FORECAST AREA THIS MORNING. MOST OF THE PRECIPITATION
WITH THIS FRONT IS OVER WESTERN AREAS FROM THE BLUE MOUNTAINS
WESTWARD AND NORTHWARD. HOWEVER DID NOT RULE OUT POSSIBLE LIGHT RAIN
OVER THE WALLOWA AND ELKHORN MOUNTAINS. THE WARM FRONT WILL BE TO
THE NORTH OF THE CWA BY 00Z THIS AFTERNOON. AFTER THAT A COLD FRONT
WILL BEGIN TO PUSH EASTWARD WITH THE WINDS SWITCHING TO THE
SOUTHWEST TO NORTHWEST TONIGHT. THIS WILL BE A SLOW MOVING COLD
FRONT WITH AN UPPER LEVEL JET STREAM PARALLEL TO IT. AS A RESULT
THERE WILL BE SIGNIFICANT RAINFALL OVER AND JUST TO THE EAST OF THE
CASCADES TONIGHT AND FRIDAY. ON FRIDAY THE FRONT WILL MAKE AN
ADVANCE TO THE EAST WITH THE PRECIPITATION SPREADING INTO THE LOWER
COLUMBIA BASIN SOUTHWARD ACROSS CENTRAL AND NORTH CENTRAL OREGON.
THE COLD FRONT WILL CONTINUE TO MOVE EASTWARD FINALLY REACHING THE
IDAHO BORDER BY FRIDAY EVENING (00Z-06Z SATURDAY) WITH LIKELY POPS
MOVING INTO THE BLUE MOUNTAINS EASTWARD LATE FRIDAY AFTERNOON AND
EVENING. AT THAT TIME THE LOW LEVEL FLOW WILL BECOME SOUTHWEST TO
NORTHWEST BEHIND THE COLD FRONT WHICH WILL BE DOWNSLOPE OFF THE
CASCADES. THIS WILL CAUSE RAIN SHADOWING OVER THE SIMCOE HIGHLANDS
NORTHWARD ACROSS THE YAKIMA AND KITTITAS VALLEYS WITH DECREASING
POPS THERE. DRYING WILL CONTINUE OVERNIGHT FRIDAY INTO SATURDAY
MORNING FROM WEST TO EAST. LIKELY TO CATEGORICAL POPS WILL CONTINUE
FROM THE BLUE MOUNTAINS EASTWARD ON SATURDAY. WEST OF THE BLUE
MOUNTAINS DRYING WILL TAKE PLACE WITH THE RAIN ENDING OVER THE LOWER
COLUMBIA BASIN AND CENTRAL/NORTH CENTRAL OREGON AS WELL AS THE
YAKIMA/KITTITAS VALLEYS. THE GFS MODEL HAS THE BEST HANDLE ON THE
TIMING OF THE COLD FRONT AND LEANED MOSTLY TO IT FOR THIS FORECAST
PACKAGE. THE AIR BEHIND THE COLD FRONT WILL BE SUBSTANTIALLY COOLER
WITH SNOW LEVELS DROPPING TO AROUND 4500 FEET OVER WESTERN
AREAS...CAUSING THE PRECIPITATION TO CHANGE OVER TO SNOW ABOVE THIS
LEVEL IN THE CASCADES BEFORE TAPING OFF. SINCE MOST OF THE
PRECIPITATION WILL HAVE MOVED EAST BY THAT TIME ANY SNOW
ACCUMULATIONS WILL BE VERY LIGHT IF ANY OVER THE HIGHER CASCADES.
DRYING WILL CONTINUE FROM WEST TO EAST IN THE EARLY EXTENDED PERIOD.
WINDS WILL BE LIGHT THROUGH THE SHORT TERM WITH THE EXCEPTION THAT
THEY WILL INCREASE OVER NORTH CENTRAL OREGON AND THE EASTERN
COLUMBIA RIVER GORGE SATURDAY AFTERNOON DUE TO MIXING OF HIGHER
WINDS ALOFT DOWN TO THE SURFACE BEHIND THE COLD FRONT. TEMPERATURES
WILL BE ABOVE NORMAL TODAY BY A FEW DEGREES...BUT COOLING TO NEAR
NORMAL ON FRIDAY AND THEN ABOUT 3 TO 6 DEGREES BELOW NORMAL ON
SATURDAY. THE MOST DRAMATIC COOLING WILL TAKE PLACE OVER THE WESTERN
CWA ON FRIDAY AND SATURDAY BEHIND THE SLOW MOVING COLD FRONT. 88

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN EXITING
UPPER LEVEL TROUGH WILL RESULT IN A GRADUAL DECREASE IN
PRECIPITATION CHANCES ACROSS THE LOWER COLUMBIA BASIN.  WRAPAROUND
MOISTURE AND NORTHERLY FLOW BEHIND THE EXITING SYSTEM MAY KEEP RAIN
BELOW 3500 FEET AND SNOW ABOVE 3500 FEET GOING THROUGH THE DAY
SUNDAY MAINLY OVER THE HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.
ANOTHER WEATHER SYSTEM WILL APPROACH THE REGION WITH AN ASSOCIATED
WARM FRONT THAT WILL MOVE ACROSS THE AREA MONDAY AFTERNOON AND
EVENING.  THIS WILL RESULT GRADUALLY INCREASING CHANCES OF
PRECIPITATION AGAIN WITH SNOW LEVELS RISING THROUGH THE DAY MONDAY
TO ABOUT 6500 FEET.  THE UPPER LEVEL SHORTWAVE TROUGH WILL MOVE
ACROSS THE REGION HEADING INTO TUESDAY BRINGING AT LEAST A SLIGHT
CHANCE OF RAIN WITH SNOW LEVELS CONTINUING TO RISE TO ABOUT 7500
FEET GIVEN THE SUBTROPICAL MOISTURE SOURCE.  MODEL SOLUTIONS DIVERGE
SOMEWHAT TUESDAY NIGHT AND WEDNESDAY WITH SOME INDICATIONS OF DRYING
FROM THE GFS AND THE DGEX...BUT THE ECMWF BRINGS ANOTHER MOISTURE
LADEN SHORTWAVE TROUGH TO THE REGION.  HAVE OPTED TO LOWER POPS SOME
BY BLENDING CLIMO TO THE PRIOR FORECAST.  TEMPERATURES DURING THE
PERIOD WILL BE NEAR NORMAL SUNDAY...WITH GRADUAL WARMING INCREASING
THE TEMPERATURES UP TO 10 DEGREES ABOVE NORMAL BY WEDNESDAY.  BIEDA

&&

.AVIATION...12Z TAFS...A WARM FRONT MOVING IS AFFECTING
KBDN...KRDM...KDLS AND KYKM THIS MORNING CAUSING PERIODS OF IFR TO
MVFR CONDITIONS WITH RAIN THAT WILL CONTINUE THRU 30/21Z.  IN
ADDITION...KALW IS EXPERIENCING LIFR TO IFR CONDITIONS DUE TO FOG
THAT SHOULD GRADUALLY START TO LIFT AFT 30/16Z AND DISSIPATE BY
30/18Z. A COLD FRONT WILL APPROACH THE CASCADES AFT 31/00Z AND BRING
RAIN...HEAVY AT TIMES...TO KBDN...KRDM...KDLS AND KYKM WITH IFR TO
MVFR CIG/VIS ONCE MORE. FOG MAY ONCE AGAIN FORM TONIGHT AFT 31/04Z
AT KPSC AND KALW WITH MVFR CONDITIONS FORECASTED PRESENTLY.  WINDS
AOB 10 KTS ARE EXPECTED DURING THE TAF PERIOD.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  59  46  56  40 /  20  10  70  70
ALW  60  49  58  44 /  20  10  60  70
PSC  57  45  58  42 /  30  10  60  60
YKM  54  42  55  36 /  80  70  70  20
HRI  58  43  57  40 /  30  10  60  60
ELN  52  43  52  36 /  90  80  70  20
RDM  62  39  51  31 /  20  20  80  70
LGD  61  44  58  39 /  20  10  50  70
GCD  63  44  57  38 /  10  10  60  70
DLS  57  46  55  42 / 100  80  80  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

88/98/98








000
FXUS66 KPDT 300835
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
135 AM PDT THU OCT 30 2014

.SHORT TERM...TODAY THROUGH SATURDAY...A WARM FRONT ASSOCIATED WITH
A DEVELOPING WEATHER SYSTEM ALONG THE COAST IS MOVING NORTHWARD
ACROSS THE FORECAST AREA THIS MORNING. MOST OF THE PRECIPITATION
WITH THIS FRONT IS OVER WESTERN AREAS FROM THE BLUE MOUNTAINS
WESTWARD AND NORTHWARD. HOWEVER DID NOT RULE OUT POSSIBLE LIGHT RAIN
OVER THE WALLOWA AND ELKHORN MOUNTAINS. THE WARM FRONT WILL BE TO
THE NORTH OF THE CWA BY 00Z THIS AFTERNOON. AFTER THAT A COLD FRONT
WILL BEGIN TO PUSH EASTWARD WITH THE WINDS SWITCHING TO THE
SOUTHWEST TO NORTHWEST TONIGHT. THIS WILL BE A SLOW MOVING COLD
FRONT WITH AN UPPER LEVEL JET STREAM PARALLEL TO IT. AS A RESULT
THERE WILL BE SIGNIFICANT RAINFALL OVER AND JUST TO THE EAST OF THE
CASCADES TONIGHT AND FRIDAY. ON FRIDAY THE FRONT WILL MAKE AN
ADVANCE TO THE EAST WITH THE PRECIPITATION SPREADING INTO THE LOWER
COLUMBIA BASIN SOUTHWARD ACROSS CENTRAL AND NORTH CENTRAL OREGON.
THE COLD FRONT WILL CONTINUE TO MOVE EASTWARD FINALLY REACHING THE
IDAHO BORDER BY FRIDAY EVENING (00Z-06Z SATURDAY) WITH LIKELY POPS
MOVING INTO THE BLUE MOUNTAINS EASTWARD LATE FRIDAY AFTERNOON AND
EVENING. AT THAT TIME THE LOW LEVEL FLOW WILL BECOME SOUTHWEST TO
NORTHWEST BEHIND THE COLD FRONT WHICH WILL BE DOWNSLOPE OFF THE
CASCADES. THIS WILL CAUSE RAIN SHADOWING OVER THE SIMCOE HIGHLANDS
NORTHWARD ACROSS THE YAKIMA AND KITTITAS VALLEYS WITH DECREASING
POPS THERE. DRYING WILL CONTINUE OVERNIGHT FRIDAY INTO SATURDAY
MORNING FROM WEST TO EAST. LIKELY TO CATEGORICAL POPS WILL CONTINUE
FROM THE BLUE MOUNTAINS EASTWARD ON SATURDAY. WEST OF THE BLUE
MOUNTAINS DRYING WILL TAKE PLACE WITH THE RAIN ENDING OVER THE LOWER
COLUMBIA BASIN AND CENTRAL/NORTH CENTRAL OREGON AS WELL AS THE
YAKIMA/KITTITAS VALLEYS. THE GFS MODEL HAS THE BEST HANDLE ON THE
TIMING OF THE COLD FRONT AND LEANED MOSTLY TO IT FOR THIS FORECAST
PACKAGE. THE AIR BEHIND THE COLD FRONT WILL BE SUBSTANTIALLY COOLER
WITH SNOW LEVELS DROPPING TO AROUND 4500 FEET OVER WESTERN
AREAS...CAUSING THE PRECIPITATION TO CHANGE OVER TO SNOW ABOVE THIS
LEVEL IN THE CASCADES BEFORE TAPING OFF. SINCE MOST OF THE
PRECIPITATION WILL HAVE MOVED EAST BY THAT TIME ANY SNOW
ACCUMULATIONS WILL BE VERY LIGHT IF ANY OVER THE HIGHER CASCADES.
DRYING WILL CONTINUE FROM WEST TO EAST IN THE EARLY EXTENDED PERIOD.
WINDS WILL BE LIGHT THROUGH THE SHORT TERM WITH THE EXCEPTION THAT
THEY WILL INCREASE OVER NORTH CENTRAL OREGON AND THE EASTERN
COLUMBIA RIVER GORGE SATURDAY AFTERNOON DUE TO MIXING OF HIGHER
WINDS ALOFT DOWN TO THE SURFACE BEHIND THE COLD FRONT. TEMPERATURES
WILL BE ABOVE NORMAL TODAY BY A FEW DEGREES...BUT COOLING TO NEAR
NORMAL ON FRIDAY AND THEN ABOUT 3 TO 6 DEGREES BELOW NORMAL ON
SATURDAY. THE MOST DRAMATIC COOLING WILL TAKE PLACE OVER THE WESTERN
CWA ON FRIDAY AND SATURDAY BEHIND THE SLOW MOVING COLD FRONT. 88

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN EXITING
UPPER LEVEL TROUGH WILL RESULT IN A GRADUAL DECREASE IN
PRECIPITATION CHANCES ACROSS THE LOWER COLUMBIA BASIN.  WRAPAROUND
MOISTURE AND NORTHERLY FLOW BEHIND THE EXITING SYSTEM MAY KEEP RAIN
BELOW 3500 FEET AND SNOW ABOVE 3500 FEET GOING THROUGH THE DAY
SUNDAY MAINLY OVER THE HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.
ANOTHER WEATHER SYSTEM WILL APPROACH THE REGION WITH AN ASSOCIATED
WARM FRONT THAT WILL MOVE ACROSS THE AREA MONDAY AFTERNOON AND
EVENING.  THIS WILL RESULT GRADUALLY INCREASING CHANCES OF
PRECIPITATION AGAIN WITH SNOW LEVELS RISING THROUGH THE DAY MONDAY
TO ABOUT 6500 FEET.  THE UPPER LEVEL SHORTWAVE TROUGH WILL MOVE
ACROSS THE REGION HEADING INTO TUESDAY BRINGING AT LEAST A SLIGHT
CHANCE OF RAIN WITH SNOW LEVELS CONTINUING TO RISE TO ABOUT 7500
FEET GIVEN THE SUBTROPICAL MOISTURE SOURCE.  MODEL SOLUTIONS DIVERGE
SOMEWHAT TUESDAY NIGHT AND WEDNESDAY WITH SOME INDICATIONS OF DRYING
FROM THE GFS AND THE DGEX...BUT THE ECMWF BRINGS ANOTHER MOISTURE
LADEN SHORTWAVE TROUGH TO THE REGION.  HAVE OPTED TO LOWER POPS SOME
BY BLENDING CLIMO TO THE PRIOR FORECAST.  TEMPERATURES DURING THE
PERIOD WILL BE NEAR NORMAL SUNDAY...WITH GRADUAL WARMING INCREASING
THE TEMPERATURES UP TO 10 DEGREES ABOVE NORMAL BY WEDNESDAY.  BIEDA

&&

.AVIATION...PREVIOUS DISCUSSION...06Z TAFS...MOSTLY VFR CONDITIONS
ARE EXPECTED THROUGH THE PERIOD. RAIN WILL OVERSPREAD THE WESTERN
TAFS SITES TONIGHT AFFECTING KBDN...KRDM...KDLS (AND KYKM LATE
TONIGHT). THERE WILL BE SOME POTENTIAL FOR MVFR/IFR CONDITIONS
ESPECIALLY AT KYKM AND TO SOME EXTENT AT KDLS. THE OTHER TAF SITES
WILL SEE MID AND HIGH OVC. WINDS WILL BE LIGHT THROUGH THE PERIOD
AND MOSTLY N-NE. OF NOTE HOWEVER WILL BE GUSTY S-SE WINDS ALONG THE
BLUE MOUNTAINS.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  59  46  56  40 /  20  10  70  70
ALW  60  49  58  44 /  20  10  60  70
PSC  57  45  58  42 /  30  10  60  60
YKM  54  42  55  36 /  80  70  70  20
HRI  58  43  57  40 /  30  10  60  60
ELN  52  43  52  36 /  90  80  70  20
RDM  62  39  51  31 /  20  20  80  70
LGD  61  44  58  39 /  20  10  50  70
GCD  63  44  57  38 /  10  10  60  70
DLS  57  46  55  42 / 100  80  80  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

88/98/98







000
FXUS66 KPDT 300225
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
725 PM PDT WED OCT 29 2014

.UPDATE...LARGE SCALE UPPER TROUGH WILL APPROACH THE WEST COAST
THE NEXT COUPLE OF DAYS. WARM FRONTAL PRECIPITATION IS BEGINNING
TO MOVE ACROSS CENTRAL OREGON AND CENTRAL WASHINGTON THIS EVENING.
EXPECT THIS AREA OF RAIN TO CONTINUE LIFTING NORTHWARD OVERNIGHT
INTO THURSDAY AFFECTING MAINLY THE WESTERN PORTION OF THE FORECAST
AREA. HAVE MADE SOME MINOR ADJUSTMENTS TO TEMPERATURES
TONIGHT...NUDGING THEM UPWARD A LITTLE TO ACCOUNT FOR SOME HIGHER
DEWPOINTS ACROSS THE AREA AND OVERCAST CONDITIONS. OTHERWISE THE
FORECAST IS IN GOOD SHAPE FOR TONIGHT INTO THURSDAY. THERE IS
ALREADY SOME FOG IN ELLENSBURG SO WILL MONITOR THROUGH THE EVENING
TO SEE IF AN ADVISORY IS NEEDED FOR THE OVERNIGHT PERIOD. 78

&&

.AVIATION...06Z TAFS...MOSTLY VFR CONDITIONS ARE EXPECTED THROUGH
THE PERIOD. RAIN WILL OVERSPREAD THE WESTERN TAFS SITES TONIGHT
AFFECTING KBDN...KRDM...KDLS (AND KYKM LATE TONIGHT). THERE WILL
BE SOME POTENTIAL FOR MVFR/IFR CONDITIONS ESPECIALLY AT KYKM AND
TO SOME EXTENT AT KDLS. THE OTHER TAF SITES WILL SEE MID AND HIGH
OVC. WINDS WILL BE LIGHT THROUGH THE PERIOD AND MOSTLY N-NE. OF
NOTE HOWEVER WILL BE GUSTY S-SE WINDS ALONG THE BLUE MOUNTAINS.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  46  65  50  59 /  10  20  10  70
ALW  50  67  53  60 /  10  20  10  60
PSC  46  59  49  58 /  10  30  10  60
YKM  43  54  46  54 /  30  80  70  70
HRI  46  61  47  58 /  10  30  10  60
ELN  44  53  47  54 /  30  90  80  70
RDM  43  66  43  52 /  70  20  20  80
LGD  44  63  48  63 /  10  20  10  50
GCD  46  65  48  59 /  20  10  10  60
DLS  50  58  50  57 /  80 100  80  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

78






000
FXUS66 KPDT 292315 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
415 PM PDT WED OCT 29 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH SATURDAY...A DEEPENING TROUGH OF LOW
PRESSURE IN THE EASTERN PACIFIC IS BUILDING UP A TEMPORARY RIDGE OF
HIGH PRESSURE OVER THE REGION. IN DOING SO A SURGE OF MOISTURE
COMING AROUND THE BOTTOM OF THE TROUGH WILL BE BROUGHT UP THE COAST
OVERNIGHT IN THE FORM OF A WARM FRONT. THIS WILL BRING SOME
PRECIPITATION TO THE WESTERN PORTION OF THE FORECAST AREA TONIGHT
AND THURSDAY WHILE THE EAST SEES MAINLY INCREASING CLOUDS AND LOW
CHANCE OF PRECIPITATION. SOME FOG WILL ALSO BE POSSIBLE OVERNIGHT
ALONG THE EAST SLOPES OF THE CASCADES FROM NORTH CENTRAL OREGON UP
TO THE KITTITAS VALLEY REGION. THE TROUGH WILL THEN PROCEED TO PUSH
A COLD FRONT INTO WESTERN OREGON AND WASHINGTON LATE THURSDAY AND
EARLY FRIDAY. THIS WILL KEEP THE THREAT OF PRECIPITATION TO MAINLY
THE CASCADES AND EAST SLOPES REGION. THE FRONT WILL THEN SLOWLY MOVE
EASTWARD FRIDAY AND SATURDAY AS THE UPPER LEVEL TROUGH PROCEEDS TO
MOVE INLAND. THIS WILL PUSH A SLOW MOVING BAND OF PRECIPITATION
ASSOCIATED WITH THE COLD FRONT ACROSS THE FORECAST AREA PRODUCING A
HIGH LIKELIHOOD OF RAIN AS IT DOES. COOLER AIR WILL MOVE IN BEHIND
THE FRONT ON SATURDAY LOWERING SNOW LEVELS TO 4500 TO 5500 FEET.
MOST OF THE PRECIPITATION WILL BE PRE-FRONTAL IN THE FORM OF RAIN SO
POTENTIAL SNOW ACCUMULATIONS SATURDAY LOOK TO BE LIGHT AND MAINLY
ABOVE 5000 FEET.

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...A MID/UPPER
LEVEL TROUGH WILL EXIT THE FORECAST AREA SATURDAY EVENING RESULTING
IN DECREASING POPS AND MAINLY DRY CONDITIONS AREAWIDE FOR SATURDAY
NIGHT. SUNDAY THROUGH MONDAY AFTERNOON DRY CONDITIONS WILL PERSIST
ACROSS THE INTERIOR PACIFIC NORTHWEST DUE TO A MID/UPPER LEVEL RIDGE
OF HIGH PRESSURE AND ATTENDANT SUBSIDENCE MOVING ACROSS THE REGION,
ALTHOUGH EXPECT A LOT OF MID AND HIGH LEVEL CLOUDS WILL MOVE THROUGH
THE RIDGE FOR MOSTLY CLOUDY SKIES EACH DAY. HOWEVER, THE EAST SLOPES
OF THE WASHINGTON CASCADES AND THE CRESTS OF THE OREGON CASCADES
WILL HAVE A CHANCE OF SOME SLOP OVER RAIN FOR SUNDAY THROUGH MONDAY
AFTERNOON. MONDAY NIGHT A WARM FRONT AND ASSOCIATED MOISTURE WILL
INTRODUCE A CHANCE OF RAIN MONDAY NIGHT. AS THE WARM FRONT LIFTS
NORTHWARD AND EXITS FORECAST AREA ON TUESDAY POPS WILL DECREASE FOR
MAINLY DRY CONDITIONS ON TUESDAY. TUESDAY NIGHT THROUGH WEDNESDAY
NIGHT MODELS DIVERGE IN TERMS OF THE AMPLITUDE OF A RIDGE THAT
BUILDS OVER THE PACIFIC NORTHWEST SO KEPT A CHANCE OF RAIN ON
MOUNTAINS AND SLIGHT CHANCE OF RAIN AT LOWER ELEVATIONS.  POLAN

&&

.AVIATION...00Z TAFS...VFR CONDITIONS ARE EXPECTED AT TAFS SITES
UNTIL NEXT ROUND OF RAIN MOVES INTO FORECAST AREA TONIGHT. CLOUD
BASES WILL THICKEN AND LOWER THIS EVENING TO 7000-10000 FT AGL AS A
WARM FRONT APPROACHES AND SPREADS RAIN EAST OF THE CASCADES. THE
EARLIEST ONSET OF RAIN SHOULD BEGIN AT KBDN AND KRDM BY 30/07Z, THEN
RAIN WILL START AT KYKM/KDLS AROUND 09Z-10Z. RAIN WILL ARRIVE AT
KPSC AROUND 30TH/12Z. KDLS AND KYKM WILL HAVE MVFR/IFR CONDITIONS
DUE TO REDUCED VSBY AND LOWERED CEILINGS BEGINNING AROUND 30TH/12Z.
SOUTHERLY DOWNSLOPE WINDS WILL KEEP DRY CONDITIONS AT KPDT AND KALW
TONIGHT AND TOMORROW. AT OTHER TAF SITES, RAIN WILL TAPER OFF AND
END BETWEEN 15Z-18Z THURSDAY MORNING. WINDS AT TAF SITES WILL BE
LESS THAN 10 KTS OVER THE NEXT 24 HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  45  65  50  59 /  10  20  10  70
ALW  51  67  53  60 /  10  20  10  60
PSC  45  59  49  58 /  10  30  10  60
YKM  42  54  46  54 /  30  80  70  70
HRI  44  61  47  58 /  10  30  10  60
ELN  42  53  47  54 /  30  90  80  70
RDM  39  66  43  52 /  70  20  20  80
LGD  43  63  48  63 /  10  20  10  50
GCD  45  65  48  59 /  20  10  10  60
DLS  48  58  50  57 /  80 100  80  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/99/99








000
FXUS66 KPDT 292131
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
231 PM PDT WED OCT 29 2014

.SHORT TERM...TONIGHT THROUGH SATURDAY...A DEEPENING TROUGH OF LOW
PRESSURE IN THE EASTERN PACIFIC IS BUILDING UP A TEMPORARY RIDGE OF
HIGH PRESSURE OVER THE REGION. IN DOING SO A SURGE OF MOISTURE
COMING AROUND THE BOTTOM OF THE TROUGH WILL BE BROUGHT UP THE COAST
OVERNIGHT IN THE FORM OF A WARM FRONT. THIS WILL BRING SOME
PRECIPITATION TO THE WESTERN PORTION OF THE FORECAST AREA TONIGHT
AND THURSDAY WHILE THE EAST SEES MAINLY INCREASING CLOUDS AND LOW
CHANCE OF PRECIPITATION. SOME FOG WILL ALSO BE POSSIBLE OVERNIGHT
ALONG THE EAST SLOPES OF THE CASCADES FROM NORTH CENTRAL OREGON UP
TO THE KITTITAS VALLEY REGION. THE TROUGH WILL THEN PROCEED TO PUSH
A COLD FRONT INTO WESTERN OREGON AND WASHINGTON LATE THURSDAY AND
EARLY FRIDAY. THIS WILL KEEP THE THREAT OF PRECIPITATION TO MAINLY
THE CASCADES AND EAST SLOPES REGION. THE FRONT WILL THEN SLOWLY MOVE
EASTWARD FRIDAY AND SATURDAY AS THE UPPER LEVEL TROUGH PROCEEDS TO
MOVE INLAND. THIS WILL PUSH A SLOW MOVING BAND OF PRECIPITATION
ASSOCIATED WITH THE COLD FRONT ACROSS THE FORECAST AREA PRODUCING A
HIGH LIKELIHOOD OF RAIN AS IT DOES. COOLER AIR WILL MOVE IN BEHIND
THE FRONT ON SATURDAY LOWERING SNOW LEVELS TO 4500 TO 5500 FEET.
MOST OF THE PRECIPITATION WILL BE PRE-FRONTAL IN THE FORM OF RAIN SO
POTENTIAL SNOW ACCUMULATIONS SATURDAY LOOK TO BE LIGHT AND MAINLY
ABOVE 5000 FEET.

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...A MID/UPPER
LEVEL TROUGH WILL EXIT THE FORECAST AREA SATURDAY EVENING RESULTING
IN DECREASING POPS AND MAINLY DRY CONDITIONS AREAWIDE FOR SATURDAY
NIGHT. SUNDAY THROUGH MONDAY AFTERNOON DRY CONDITIONS WILL PERSIST
ACROSS THE INTERIOR PACIFIC NORTHWEST DUE TO A MID/UPPER LEVEL RIDGE
OF HIGH PRESSURE AND ATTENDANT SUBSIDENCE MOVING ACROSS THE REGION,
ALTHOUGH EXPECT A LOT OF MID AND HIGH LEVEL CLOUDS WILL MOVE THROUGH
THE RIDGE FOR MOSTLY CLOUDY SKIES EACH DAY. HOWEVER, THE EAST SLOPES
OF THE WASHINGTON CASCADES AND THE CRESTS OF THE OREGON CASCADES
WILL HAVE A CHANCE OF SOME SLOP OVER RAIN FOR SUNDAY THROUGH MONDAY
AFTERNOON. MONDAY NIGHT A WARM FRONT AND ASSOCIATED MOISTURE WILL
INTRODUCE A CHANCE OF RAIN MONDAY NIGHT. AS THE WARM FRONT LIFTS
NORTHWARD AND EXITS FORECAST AREA ON TUESDAY POPS WILL DECREASE FOR
MAINLY DRY CONDITIONS ON TUESDAY. TUESDAY NIGHT THROUGH WEDNESDAY
NIGHT MODELS DIVERGE IN TERMS OF THE AMPLITUDE OF A RIDGE THAT
BUILDS OVER THE PACIFIC NORTHWEST SO KEPT A CHANCE OF RAIN ON
MOUNTAINS AND SLIGHT CHANCE OF RAIN AT LOWER ELEVATIONS.  POLAN


&&

.AVIATION...18Z TAFS...DENSE FOG HAS DISSIPATED ACROSS MOST AREAS
THAT WERE IN THE DENSE FOG ADVISORY, WHICH EXPIRED AT 10 AM. MVFR OR
IFR WILL BE POSSIBLE UNTIL 19Z AT KYKM BEFORE THE MIST ENTIRELY
BURNS OFF. OTHERWISE VFR EXPECTED AT TAFS SITES UNTIL NEXT ROUND OF
RAIN MOVES INTO FORECAST AREA TONIGHT. CLOUD BASES AROUND 8000 FT
AGL AT KALW WILL PERSIST THROUGH REMAINDER OF THIS MORNING WITH
OTHER TAF SITES SEEING INCREASING MID AND HIGH LEVEL CLOUDS THIS
AFTERNOON ASSOCIATED WITH APPROACHING WARM FRONT. EARLIEST ONSET OF
RAIN SHOULD BEGIN AT KBDN AND KRDM BY 30/07Z, THEN RAIN STARTING AT
KYKM/KDLS AROUND 09Z-10Z. ADDED RAIN TO TAF FOR KPSC STARTING AT
20TH/12Z. KDLS AND KYKM WILL HAVE MVFR/IFR CONDITIONS DUE TO REDUCED
VSBY AND LOWERED CEILINGS  BEGINNING AROUND 30TH/12Z. SOUTHERLY
DOWNSLOPE WINDS WILL KEEP DRY CONDITIONS AT KPDT AND KALW TONIGHT.
WINDS LESS THAN 10 KTS WILL OCCUR DURING THE TAF PERIOD.  POLAN


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  45  65  50  59 /  10  20  10  70
ALW  51  67  53  60 /  10  20  10  60
PSC  45  59  49  58 /  10  30  10  60
YKM  42  54  46  54 /  30  80  70  70
HRI  44  61  47  58 /  10  30  10  60
ELN  42  53  47  54 /  30  90  80  70
RDM  39  66  43  52 /  70  20  20  80
LGD  43  63  48  63 /  10  20  10  50
GCD  45  65  48  59 /  20  10  10  60
DLS  48  58  50  57 /  80 100  80  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/99/99










000
FXUS66 KPDT 291829 AAB
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1129 AM PDT WED OCT 29 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY AND TONIGHT...WEATHER SYSTEM IS DEPARTING TO THE
EAST AS A TEMPORARY RIDGE BEGINS TO BUILD OVER THE REGION
TODAY...HOWEVER AS THE RIDGE BUILDS IT WILL HAVE A WARM FRONT
ASSOCIATED WITH IT. THIS WARM FRONT WILL LIFT NORTHWARD INTO
SOUTHERN OREGON THIS AFTERNOON. OVERNIGHT THE FRONT WILL CONTINUE
NORTHWARD BRINGING RAIN TO THE WESTERN PORTION OF THE FORECAST AREA.
EASTERN FORECAST AREA WILL SEE MAINLY INCREASING CLOUDS OVERNIGHT.

&&

.AVIATION...18Z TAFS...DENSE FOG HAS DISSIPATED ACROSS MOST AREAS
THAT WERE IN THE DENSE FOG ADVISORY, WHICH EXPIRED AT 10 AM. MVFR OR
IFR WILL BE POSSIBLE UNTIL 19Z AT KYKM BEFORE THE MIST ENTIRELY
BURNS OFF. OTHERWISE VFR EXPECTED AT TAFS SITES UNTIL NEXT ROUND OF
RAIN MOVES INTO FORECAST AREA TONIGHT. CLOUD BASES AROUND 8000 FT
AGL AT KALW WILL PERSIST THROUGH REMAINDER OF THIS MORNING WITH
OTHER TAF SITES SEEING INCREASING MID AND HIGH LEVEL CLOUDS THIS
AFTERNOON ASSOCIATED WITH APPROACHING WARM FRONT. EARLIEST ONSET OF
RAIN SHOULD BEGIN AT KBDN AND KRDM BY 30/07Z, THEN RAIN STARTING AT
KYKM/KDLS AROUND 09Z-10Z. ADDED RAIN TO TAF FOR KPSC STARTING AT
20TH/12Z. KDLS AND KYKM WILL HAVE MVFR/IFR CONDITIONS DUE TO REDUCED
VSBY AND LOWERED CEILINGS  BEGINNING AROUND 30TH/12Z. SOUTHERLY
DOWNSLOPE WINDS WILL KEEP DRY CONDITIONS AT KPDT AND KALW TONIGHT.
WINDS LESS THAN 10 KTS WILL OCCUR DURING THE TAF PERIOD.  POLAN


.PREVIOUS DISCUSSION... /ISSUED 410 AM PDT WED OCT 29 2014/

SHORT TERM...TODAY THROUGH FRIDAY...THERE ARE STILL A FEW LINGERING
SHOWERS OVER THE CASCADES AND NORTHEAST MOUNTAINS. THESE ARE
DECREASING. PARTIAL CLEARING SKIES ON THE LEE SIDE OF THE WASHINGTON
CASCADES WITH LIGHT WINDS HAS ALLOWED AREAS OF FOG...LOCALLY
DENSE...TO FORM OVER THE LOWER YAKIMA VALLEY. A DENSE FOG ADVISORY
HAS BEEN ISSUED FOR DENSE FOG UNTIL 10 AM FOR THAT AREA...MAINLY
NEAR THE CITY OF TOPPENISH IN THE LOWER YAKIMA VALLEY. DRYING WILL
TAKE PLACE TODAY AS AN UPPER RIDGE BUILDS OVER THE REGION AND THE
CWA TODAY. HOWEVER THERE MAY STILL BE A FEW LINGERING SHOWERS OVER
THE CASCADES...MAINLY THIS MORNING. THE NEXT WEATHER SYSTEM TO
AFFECT THE REGION WILL BEGIN TO SPREAD MOISTURE EAST OF THE CASCADES
OVERNIGHT TONIGHT AND ON THURSDAY AS A WARM FRONT MOVES NORTHWARD.
THE BULK OF THE PRECIPITATION WILL BE OVER WESTERN AREAS WITH THIS
WARM FRONT. THEN A SLOW MOVING COLD FRONT WILL MOVE INTO AND EAST OF
THE CASCADES THURSDAY NIGHT AND FRIDAY. THE UPPER JET STREAM WILL BE
PARALLEL TO THE COLD FRONT WHICH WILL KEEP THE COLD FRONT SLOW
MOVING. THIS COULD RESULT IN HEAVY RAIN OVER THE CASCADES THURSDAY
INTO FRIDAY. BY LATE FRIDAY AFTERNOON MOST OF THE CWA WILL HAVE
LIKELY POPS AS THE COLD FRONT CONTINUES TO MOVE EAST ACROSS THE
AREA. WEST TO NORTHWEST WINDS WILL CAUSE DOWNSLOPE DRYING TO REDUCE
PRECIPITATION IN THE LEE OF THE WASHINGTON CASCADE EAST SLOPES...I.E
OVER THE LOWER COLUMBIA BASIN AND THE YAKIMA/KITTITAS VALLEYS. SNOW
LEVELS OF AROUND 9000 FEET WILL BE HIGH ENOUGH TO MAKE THIS A RAIN
EVENT...EVEN AT THE HIGHER ELEVATIONS. THE COLD FRONT WILL CONTINUE
TO MOVE EASTWARD GOING INTO THE EXTENDED PERIOD. TEMPERATURES WILL
BE A FEW DEGREES ABOVE NORMAL TODAY AND THURSDAY AND THEN COOLER AIR
WILL MOVE INTO THE REGION TO RESULT IN CLOSER TO NORMAL TEMPERATURES
ON FRIDAY. 88

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...A LONG WAVE TROUGH
WITH AN ASSOCIATED LOW PRESSURE SYSTEM AND COLD FRONT WILL BE MOVING
ACROSS THE REGION FRIDAY NIGHT BRINGING A CHANCE OF RAIN SHOWERS AND
SNOW ABOVE 4500 FEET.  AS THE SYSTEM EJECTS EASTWARD THROUGH THE DAY
SATURDAY...PRECIPITATION WILL GRADUALLY COME TO AN END UNDER WEST
AND NORTHWEST FLOW IN THE LOWER COLUMBIA BASIN.  SOME MOISTURE
SLOPPING OVER THE EAST SLOPES OF THE CASCADES AND HIGHLANDS ABOVE
3500 FEET MAY STILL CONTINUE INTO SATURDAY NIGHT AND EARLY SUNDAY
MORNING IN THE FORM OF MIXED PRECIPITATION OR SNOW.  TEMPERATURES
WILL BE NOTICEABLY COOLER FRIDAY AND SATURDAY WITH HIGH TEMPERATURES
IN THE MID 40S TO MID 50S ALONG THE LOWER ELEVATIONS AND IN THE
LOWER 30S TO LOWER 40S ALONG THE EAST SLOPES OF THE CASCADES AND THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.

AS THE LONGWAVE TROUGH WITH ASSOCIATED UPPER LEVEL LOW MOVES
EASTWARD ON SUNDAY...WRAP AROUND MOISTURE AND NORTHWESTERLY UPSLOPE
FLOW MAY BRING A SLIGHT CHANCE OF PRECIPITATION TO THE LOWER
ELEVATIONS AND A CHANCE OF PRECIPITATION TO THE HIGHER ELEVATIONS
SUNDAY AFTERNOON.  SNOW LEVELS ARE EXPECTED TO GRADUALLY RISE AS
WARM AIR ADVECTS IN BEHIND THE SYSTEM TO AROUND 5000-5500 FEET.
ANOTHER SHORTWAVE TROUGH MAY ENTER THE REGION MONDAY WITH A NICE
MOISTURE FETCH INTO THE REGION AS WEST TO SOUTHWEST FLOW ESTABLISHES
ITSELF OVER THE PACIFIC NORTHWEST.  DIFFERENCES EXISTS IN THE
TRAJECTORY OF EXPECTED SHORTWAVE TROUGH WITH ATTENDANT MOISTURE
FETCH...BUT WILL BLEND IN CLIMO POPS INTO GRIDS LATE IN THE PERIOD.
HIGH TEMPERATURES FOR SUNDAY THROUGH TUESDAY WILL BE ABOUT 3 TO 5
DEGREES WARMER THAN EARLIER IN THE PERIOD.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  63  45  61  47 /  10  10  20  10
ALW  64  51  63  52 /  10  10  20  10
PSC  62  45  58  47 /  10  10  30  20
YKM  59  42  55  43 /  10  30  70  50
HRI  63  44  59  46 /  10  10  30  20
ELN  57  42  54  43 /  10  30  80  60
RDM  62  39  62  40 /  10  70  20  30
LGD  58  43  61  46 /  10  10  20  10
GCD  59  45  63  47 /  10  20  10  10
DLS  63  48  58  50 /  10  80  80  60

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/99/88/98











000
FXUS66 KPDT 291827 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1125 AM PDT WED OCT 29 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY AND TONIGHT...WEATHER SYSTEM IS DEPARTING TO THE
EAST AS A TEMPORARY RIDGE BEGINS TO BUILD OVER THE REGION
TODAY...HOWEVER AS THE RIDGE BUILDS IT WILL HAVE A WARM FRONT
ASSOCIATED WITH IT. THIS WARM FRONT WILL LIFT NORTHWARD INTO
SOUTHERN OREGON THIS AFTERNOON. OVERNIGHT THE FRONT WILL CONTINUE
NORTHWARD BRINGING RAIN TO THE WESTERN PORTION OF THE FORECAST AREA.
EASTERN FORECAST AREA WILL SEE MAINLY INCREASING CLOUDS OVERNIGHT.

&&

.AVIATION...18Z TAFS...DENSE FOG HAS DISSIPATED ACROSS MOST AREAS
THAT WERE IN THE DENSE FOG ADVISORY, WHICH EXPIRED AT 10 AM. MVFR OR
IFR WILL BE POSSIBLE UNTIL 19Z AT KYKM BEFORE THE MIST ENTIRELY
BURNS OFF. OTHERWISE VFR EXPECTED AT TAFS SITES UNTIL NEXT ROUND OF
RAIN MOVES INTO FORECAST AREA TONIGHT. CLOUD BASES AROUND FT AGL AT
KALW WILL PERSIST THROUGH REMAINDER OF THIS MORNING WITH OTHER TAF
SITES SEEING INCREASING MID AND HIGH LEVEL CLOUDS AFT 30/03Z WITH
APPROACHING WARM FRONT. EARLIEST ONSET OF RAIN SHOULD BEGIN AT KBDN
AND KRDM BY 30/07Z, THEN RAIN STARTING AT KYKM/KDLS AROUND 09Z-10Z.
ADDED RAIN TO TAF FOR KPSC STARTING AT 20TH/12Z. KDLS AND KYKM WILL
HAVE MVFR/IFR CONDITIONS DUE TO REDUCED VSBY AND LOWERED CEILINGS
BEGINNING AROUND 30TH/12Z. SOUTHERLY DOWNSLOPE WINDS WILL KEEP DRY
CONDITIONS AT KPDT AND KALW TONIGHT. WINDS LESS THAN 10 KTS WILL
OCCUR DURING THE TAF PERIOD.  POLAN


.PREVIOUS DISCUSSION... /ISSUED 410 AM PDT WED OCT 29 2014/

SHORT TERM...TODAY THROUGH FRIDAY...THERE ARE STILL A FEW LINGERING
SHOWERS OVER THE CASCADES AND NORTHEAST MOUNTAINS. THESE ARE
DECREASING. PARTIAL CLEARING SKIES ON THE LEE SIDE OF THE WASHINGTON
CASCADES WITH LIGHT WINDS HAS ALLOWED AREAS OF FOG...LOCALLY
DENSE...TO FORM OVER THE LOWER YAKIMA VALLEY. A DENSE FOG ADVISORY
HAS BEEN ISSUED FOR DENSE FOG UNTIL 10 AM FOR THAT AREA...MAINLY
NEAR THE CITY OF TOPPENISH IN THE LOWER YAKIMA VALLEY. DRYING WILL
TAKE PLACE TODAY AS AN UPPER RIDGE BUILDS OVER THE REGION AND THE
CWA TODAY. HOWEVER THERE MAY STILL BE A FEW LINGERING SHOWERS OVER
THE CASCADES...MAINLY THIS MORNING. THE NEXT WEATHER SYSTEM TO
AFFECT THE REGION WILL BEGIN TO SPREAD MOISTURE EAST OF THE CASCADES
OVERNIGHT TONIGHT AND ON THURSDAY AS A WARM FRONT MOVES NORTHWARD.
THE BULK OF THE PRECIPITATION WILL BE OVER WESTERN AREAS WITH THIS
WARM FRONT. THEN A SLOW MOVING COLD FRONT WILL MOVE INTO AND EAST OF
THE CASCADES THURSDAY NIGHT AND FRIDAY. THE UPPER JET STREAM WILL BE
PARALLEL TO THE COLD FRONT WHICH WILL KEEP THE COLD FRONT SLOW
MOVING. THIS COULD RESULT IN HEAVY RAIN OVER THE CASCADES THURSDAY
INTO FRIDAY. BY LATE FRIDAY AFTERNOON MOST OF THE CWA WILL HAVE
LIKELY POPS AS THE COLD FRONT CONTINUES TO MOVE EAST ACROSS THE
AREA. WEST TO NORTHWEST WINDS WILL CAUSE DOWNSLOPE DRYING TO REDUCE
PRECIPITATION IN THE LEE OF THE WASHINGTON CASCADE EAST SLOPES...I.E
OVER THE LOWER COLUMBIA BASIN AND THE YAKIMA/KITTITAS VALLEYS. SNOW
LEVELS OF AROUND 9000 FEET WILL BE HIGH ENOUGH TO MAKE THIS A RAIN
EVENT...EVEN AT THE HIGHER ELEVATIONS. THE COLD FRONT WILL CONTINUE
TO MOVE EASTWARD GOING INTO THE EXTENDED PERIOD. TEMPERATURES WILL
BE A FEW DEGREES ABOVE NORMAL TODAY AND THURSDAY AND THEN COOLER AIR
WILL MOVE INTO THE REGION TO RESULT IN CLOSER TO NORMAL TEMPERATURES
ON FRIDAY. 88

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...A LONG WAVE TROUGH
WITH AN ASSOCIATED LOW PRESSURE SYSTEM AND COLD FRONT WILL BE MOVING
ACROSS THE REGION FRIDAY NIGHT BRINGING A CHANCE OF RAIN SHOWERS AND
SNOW ABOVE 4500 FEET.  AS THE SYSTEM EJECTS EASTWARD THROUGH THE DAY
SATURDAY...PRECIPITATION WILL GRADUALLY COME TO AN END UNDER WEST
AND NORTHWEST FLOW IN THE LOWER COLUMBIA BASIN.  SOME MOISTURE
SLOPPING OVER THE EAST SLOPES OF THE CASCADES AND HIGHLANDS ABOVE
3500 FEET MAY STILL CONTINUE INTO SATURDAY NIGHT AND EARLY SUNDAY
MORNING IN THE FORM OF MIXED PRECIPITATION OR SNOW.  TEMPERATURES
WILL BE NOTICEABLY COOLER FRIDAY AND SATURDAY WITH HIGH TEMPERATURES
IN THE MID 40S TO MID 50S ALONG THE LOWER ELEVATIONS AND IN THE
LOWER 30S TO LOWER 40S ALONG THE EAST SLOPES OF THE CASCADES AND THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.

AS THE LONGWAVE TROUGH WITH ASSOCIATED UPPER LEVEL LOW MOVES
EASTWARD ON SUNDAY...WRAP AROUND MOISTURE AND NORTHWESTERLY UPSLOPE
FLOW MAY BRING A SLIGHT CHANCE OF PRECIPITATION TO THE LOWER
ELEVATIONS AND A CHANCE OF PRECIPITATION TO THE HIGHER ELEVATIONS
SUNDAY AFTERNOON.  SNOW LEVELS ARE EXPECTED TO GRADUALLY RISE AS
WARM AIR ADVECTS IN BEHIND THE SYSTEM TO AROUND 5000-5500 FEET.
ANOTHER SHORTWAVE TROUGH MAY ENTER THE REGION MONDAY WITH A NICE
MOISTURE FETCH INTO THE REGION AS WEST TO SOUTHWEST FLOW ESTABLISHES
ITSELF OVER THE PACIFIC NORTHWEST.  DIFFERENCES EXISTS IN THE
TRAJECTORY OF EXPECTED SHORTWAVE TROUGH WITH ATTENDANT MOISTURE
FETCH...BUT WILL BLEND IN CLIMO POPS INTO GRIDS LATE IN THE PERIOD.
HIGH TEMPERATURES FOR SUNDAY THROUGH TUESDAY WILL BE ABOUT 3 TO 5
DEGREES WARMER THAN EARLIER IN THE PERIOD.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  63  45  61  47 /  10  10  20  10
ALW  64  51  63  52 /  10  10  20  10
PSC  62  45  58  47 /  10  10  30  20
YKM  59  42  55  43 /  10  30  70  50
HRI  63  44  59  46 /  10  10  30  20
ELN  57  42  54  43 /  10  30  80  60
RDM  62  39  62  40 /  10  70  20  30
LGD  58  43  61  46 /  10  10  20  10
GCD  59  45  63  47 /  10  20  10  10
DLS  63  48  58  50 /  10  80  80  60

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/99/88/9








000
FXUS66 KPDT 291517
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
818 AM PDT WED OCT 29 2014

.SHORT TERM...TODAY AND TONIGHT...WEATHER SYSTEM IS DEPARTING TO THE
EAST AS A TEMPORARY RIDGE BEGINS TO BUILD OVER THE REGION
TODAY...HOWEVER AS THE RIDGE BUILDS IT WILL HAVE A WARM FRONT
ASSOCIATED WITH IT. THIS WARM FRONT WILL LIFT NORTHWARD INTO
SOUTHERN OREGON THIS AFTERNOON. OVERNIGHT THE FRONT WILL CONTINUE
NORTHWARD BRINGING RAIN TO THE WESTERN PORTION OF THE FORECAST AREA.
EASTERN FORECAST AREA WILL SEE MAINLY INCREASING CLOUDS OVERNIGHT.


&&

.PREV DISC... /ISSUED 410 AM PDT WED OCT 29 2014/

SHORT TERM...TODAY THROUGH FRIDAY...THERE ARE STILL A FEW LINGERING
SHOWERS OVER THE CASCADES AND NORTHEAST MOUNTAINS. THESE ARE
DECREASING. PARTIAL CLEARING SKIES ON THE LEE SIDE OF THE WASHINGTON
CASCADES WITH LIGHT WINDS HAS ALLOWED AREAS OF FOG...LOCALLY
DENSE...TO FORM OVER THE LOWER YAKIMA VALLEY. A DENSE FOG ADVISORY
HAS BEEN ISSUED FOR DENSE FOG UNTIL 10 AM FOR THAT AREA...MAINLY
NEAR THE CITY OF TOPPENISH IN THE LOWER YAKIMA VALLEY. DRYING WILL
TAKE PLACE TODAY AS AN UPPER RIDGE BUILDS OVER THE REGION AND THE
CWA TODAY. HOWEVER THERE MAY STILL BE A FEW LINGERING SHOWERS OVER
THE CASCADES...MAINLY THIS MORNING. THE NEXT WEATHER SYSTEM TO
AFFECT THE REGION WILL BEGIN TO SPREAD MOISTURE EAST OF THE CASCADES
OVERNIGHT TONIGHT AND ON THURSDAY AS A WARM FRONT MOVES NORTHWARD.
THE BULK OF THE PRECIPITATION WILL BE OVER WESTERN AREAS WITH THIS
WARM FRONT. THEN A SLOW MOVING COLD FRONT WILL MOVE INTO AND EAST OF
THE CASCADES THURSDAY NIGHT AND FRIDAY. THE UPPER JET STREAM WILL BE
PARALLEL TO THE COLD FRONT WHICH WILL KEEP THE COLD FRONT SLOW
MOVING. THIS COULD RESULT IN HEAVY RAIN OVER THE CASCADES THURSDAY
INTO FRIDAY. BY LATE FRIDAY AFTERNOON MOST OF THE CWA WILL HAVE
LIKELY POPS AS THE COLD FRONT CONTINUES TO MOVE EAST ACROSS THE
AREA. WEST TO NORTHWEST WINDS WILL CAUSE DOWNSLOPE DRYING TO REDUCE
PRECIPITATION IN THE LEE OF THE WASHINGTON CASCADE EAST SLOPES...I.E
OVER THE LOWER COLUMBIA BASIN AND THE YAKIMA/KITTITAS VALLEYS. SNOW
LEVELS OF AROUND 9000 FEET WILL BE HIGH ENOUGH TO MAKE THIS A RAIN
EVENT...EVEN AT THE HIGHER ELEVATIONS. THE COLD FRONT WILL CONTINUE
TO MOVE EASTWARD GOING INTO THE EXTENDED PERIOD. TEMPERATURES WILL
BE A FEW DEGREES ABOVE NORMAL TODAY AND THURSDAY AND THEN COOLER AIR
WILL MOVE INTO THE REGION TO RESULT IN CLOSER TO NORMAL TEMPERATURES
ON FRIDAY. 88

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...A LONG WAVE TROUGH
WITH AN ASSOCIATED LOW PRESSURE SYSTEM AND COLD FRONT WILL BE MOVING
ACROSS THE REGION FRIDAY NIGHT BRINGING A CHANCE OF RAIN SHOWERS AND
SNOW ABOVE 4500 FEET.  AS THE SYSTEM EJECTS EASTWARD THROUGH THE DAY
SATURDAY...PRECIPITATION WILL GRADUALLY COME TO AN END UNDER WEST
AND NORTHWEST FLOW IN THE LOWER COLUMBIA BASIN.  SOME MOISTURE
SLOPPING OVER THE EAST SLOPES OF THE CASCADES AND HIGHLANDS ABOVE
3500 FEET MAY STILL CONTINUE INTO SATURDAY NIGHT AND EARLY SUNDAY
MORNING IN THE FORM OF MIXED PRECIPITATION OR SNOW.  TEMPERATURES
WILL BE NOTICEABLY COOLER FRIDAY AND SATURDAY WITH HIGH TEMPERATURES
IN THE MID 40S TO MID 50S ALONG THE LOWER ELEVATIONS AND IN THE
LOWER 30S TO LOWER 40S ALONG THE EAST SLOPES OF THE CASCADES AND THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.

AS THE LONGWAVE TROUGH WITH ASSOCIATED UPPER LEVEL LOW MOVES
EASTWARD ON SUNDAY...WRAP AROUND MOISTURE AND NORTHWESTERLY UPSLOPE
FLOW MAY BRING A SLIGHT CHANCE OF PRECIPITATION TO THE LOWER
ELEVATIONS AND A CHANCE OF PRECIPITATION TO THE HIGHER ELEVATIONS
SUNDAY AFTERNOON.  SNOW LEVELS ARE EXPECTED TO GRADUALLY RISE AS
WARM AIR ADVECTS IN BEHIND THE SYSTEM TO AROUND 5000-5500 FEET.
ANOTHER SHORTWAVE TROUGH MAY ENTER THE REGION MONDAY WITH A NICE
MOISTURE FETCH INTO THE REGION AS WEST TO SOUTHWEST FLOW ESTABLISHES
ITSELF OVER THE PACIFIC NORTHWEST.  DIFFERENCES EXISTS IN THE
TRAJECTORY OF EXPECTED SHORTWAVE TROUGH WITH ATTENDANT MOISTURE
FETCH...BUT WILL BLEND IN CLIMO POPS INTO GRIDS LATE IN THE PERIOD.
HIGH TEMPERATURES FOR SUNDAY THROUGH TUESDAY WILL BE ABOUT 3 TO 5
DEGREES WARMER THAN EARLIER IN THE PERIOD.  BIEDA

AVIATION...12Z TAFS...DENSE FOG HAS FORMED DUE TO RECENT RAINFALL
WITH LIFR CIG AND VIS AT KDLS AND KYKM.  FOG SHOULD DISPERSE AT
29/16Z WITH LINGERING SCT-BKN CIG AOA 4K FT AGL THRU 30/02Z AT THOSE
TAF SITES.  LINGERING CIG AOA 6K FT AGL AT KPDT/KALW WILL PERSIST
THROUGH THE MORNING WITH REMAINING TAF SITES BEING CLEAR.
OTHERWISE...MID AND HIGH LEVEL CLOUDS TO INCREASE AFT 30/03Z WITH
APPROACHING WARM FRONT AND RAIN MAY BEGIN AFT 30/08Z AT KYKM/KDLS.
WINDS BTWN 5 TO 15 KTS WILL OCCUR DURING THE TAF PERIOD.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  63  45  61  47 /  10  10  20  10
ALW  64  51  63  52 /  10  10  20  10
PSC  62  45  58  47 /  10  10  30  20
YKM  59  42  55  43 /  10  30  70  50
HRI  63  44  59  46 /  10  10  30  20
ELN  57  42  54  43 /  10  30  80  60
RDM  62  39  62  40 /  10  70  20  30
LGD  58  43  61  46 /  10  10  20  10
GCD  59  45  63  47 /  10  20  10  10
DLS  63  48  58  50 /  10  80  80  60

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...DENSE FOG ADVISORY UNTIL 10 AM PDT THIS MORNING WAZ026>028.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/99/99










000
FXUS66 KPDT 291110 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
410 AM PDT WED OCT 29 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH FRIDAY...THERE ARE STILL A FEW LINGERING
SHOWERS OVER THE CASCADES AND NORTHEAST MOUNTAINS. THESE ARE
DECREASING. PARTIAL CLEARING SKIES ON THE LEE SIDE OF THE WASHINGTON
CASCADES WITH LIGHT WINDS HAS ALLOWED AREAS OF FOG...LOCALLY
DENSE...TO FORM OVER THE LOWER YAKIMA VALLEY. A DENSE FOG ADVISORY
HAS BEEN ISSUED FOR DENSE FOG UNTIL 10 AM FOR THAT AREA...MAINLY
NEAR THE CITY OF TOPPENISH IN THE LOWER YAKIMA VALLEY. DRYING WILL
TAKE PLACE TODAY AS AN UPPER RIDGE BUILDS OVER THE REGION AND THE
CWA TODAY. HOWEVER THERE MAY STILL BE A FEW LINGERING SHOWERS OVER
THE CASCADES...MAINLY THIS MORNING. THE NEXT WEATHER SYSTEM TO
AFFECT THE REGION WILL BEGIN TO SPREAD MOISTURE EAST OF THE CASCADES
OVERNIGHT TONIGHT AND ON THURSDAY AS A WARM FRONT MOVES NORTHWARD.
THE BULK OF THE PRECIPITATION WILL BE OVER WESTERN AREAS WITH THIS
WARM FRONT. THEN A SLOW MOVING COLD FRONT WILL MOVE INTO AND EAST OF
THE CASCADES THURSDAY NIGHT AND FRIDAY. THE UPPER JET STREAM WILL BE
PARALLEL TO THE COLD FRONT WHICH WILL KEEP THE COLD FRONT SLOW
MOVING. THIS COULD RESULT IN HEAVY RAIN OVER THE CASCADES THURSDAY
INTO FRIDAY. BY LATE FRIDAY AFTERNOON MOST OF THE CWA WILL HAVE
LIKELY POPS AS THE COLD FRONT CONTINUES TO MOVE EAST ACROSS THE
AREA. WEST TO NORTHWEST WINDS WILL CAUSE DOWNSLOPE DRYING TO REDUCE
PRECIPITATION IN THE LEE OF THE WASHINGTON CASCADE EAST SLOPES...I.E
OVER THE LOWER COLUMBIA BASIN AND THE YAKIMA/KITTITAS VALLEYS. SNOW
LEVELS OF AROUND 9000 FEET WILL BE HIGH ENOUGH TO MAKE THIS A RAIN
EVENT...EVEN AT THE HIGHER ELEVATIONS. THE COLD FRONT WILL CONTINUE
TO MOVE EASTWARD GOING INTO THE EXTENDED PERIOD. TEMPERATURES WILL
BE A FEW DEGREES ABOVE NORMAL TODAY AND THURSDAY AND THEN COOLER AIR
WILL MOVE INTO THE REGION TO RESULT IN CLOSER TO NORMAL TEMPERATURES
ON FRIDAY. 88

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...A LONG WAVE TROUGH
WITH AN ASSOCIATED LOW PRESSURE SYSTEM AND COLD FRONT WILL BE MOVING
ACROSS THE REGION FRIDAY NIGHT BRINGING A CHANCE OF RAIN SHOWERS AND
SNOW ABOVE 4500 FEET.  AS THE SYSTEM EJECTS EASTWARD THROUGH THE DAY
SATURDAY...PRECIPITATION WILL GRADUALLY COME TO AN END UNDER WEST
AND NORTHWEST FLOW IN THE LOWER COLUMBIA BASIN.  SOME MOISTURE
SLOPPING OVER THE EAST SLOPES OF THE CASCADES AND HIGHLANDS ABOVE
3500 FEET MAY STILL CONTINUE INTO SATURDAY NIGHT AND EARLY SUNDAY
MORNING IN THE FORM OF MIXED PRECIPITATION OR SNOW.  TEMPERATURES
WILL BE NOTICEABLY COOLER FRIDAY AND SATURDAY WITH HIGH TEMPERATURES
IN THE MID 40S TO MID 50S ALONG THE LOWER ELEVATIONS AND IN THE
LOWER 30S TO LOWER 40S ALONG THE EAST SLOPES OF THE CASCADES AND THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.

AS THE LONGWAVE TROUGH WITH ASSOCIATED UPPER LEVEL LOW MOVES
EASTWARD ON SUNDAY...WRAP AROUND MOISTURE AND NORTHWESTERLY UPSLOPE
FLOW MAY BRING A SLIGHT CHANCE OF PRECIPITATION TO THE LOWER
ELEVATIONS AND A CHANCE OF PRECIPITATION TO THE HIGHER ELEVATIONS
SUNDAY AFTERNOON.  SNOW LEVELS ARE EXPECTED TO GRADUALLY RISE AS
WARM AIR ADVECTS IN BEHIND THE SYSTEM TO AROUND 5000-5500 FEET.
ANOTHER SHORTWAVE TROUGH MAY ENTER THE REGION MONDAY WITH A NICE
MOISTURE FETCH INTO THE REGION AS WEST TO SOUTHWEST FLOW ESTABLISHES
ITSELF OVER THE PACIFIC NORTHWEST.  DIFFERENCES EXISTS IN THE
TRAJECTORY OF EXPECTED SHORTWAVE TROUGH WITH ATTENDANT MOISTURE
FETCH...BUT WILL BLEND IN CLIMO POPS INTO GRIDS LATE IN THE PERIOD.
HIGH TEMPERATURES FOR SUNDAY THROUGH TUESDAY WILL BE ABOUT 3 TO 5
DEGREES WARMER THAN EARLIER IN THE PERIOD.  BIEDA

&&

.AVIATION...12Z TAFS...DENSE FOG HAS FORMED DUE TO RECENT RAINFALL
WITH LIFR CIG AND VIS AT KDLS AND KYKM.  FOG SHOULD DISPERSE AT
29/16Z WITH LINGERING SCT-BKN CIG AOA 4K FT AGL THRU 30/02Z AT THOSE
TAF SITES.  LINGERING CIG AOA 6K FT AGL AT KPDT/KALW WILL PERSIST
THROUGH THE MORNING WITH REMAINING TAF SITES BEING CLEAR.
OTHERWISE...MID AND HIGH LEVEL CLOUDS TO INCREASE AFT 30/03Z WITH
APPROACHING WARM FRONT AND RAIN MAY BEGIN AFT 30/08Z AT KYKM/KDLS.
WINDS BTWN 5 TO 15 KTS WILL OCCUR DURING THE TAF PERIOD.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  62  46  61  47 /  10  20  20  10
ALW  63  51  63  52 /  10  20  20  10
PSC  63  47  58  47 /  10  20  30  20
YKM  60  42  55  43 /  10  40  70  50
HRI  63  46  59  46 /  10  20  30  20
ELN  57  43  54  43 /  10  40  80  60
RDM  61  41  62  40 /  10  40  20  30
LGD  58  42  61  46 /  10  20  20  10
GCD  59  43  63  47 /  10  20  10  10
DLS  62  49  58  50 /  10  60  80  60

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...DENSE FOG ADVISORY UNTIL 10 AM PDT THIS MORNING WAZ027.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

88/98/98








000
FXUS66 KPDT 290924
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
224 AM PDT WED OCT 29 2014

.SHORT TERM...TODAY THROUGH FRIDAY...THERE ARE STILL A FEW LINGERING
SHOWERS OVER THE CASCADES AND NORTHEAST MOUNTAINS. THESE ARE
DECREASING. PARTIAL CLEARING SKIES ON THE LEE SIDE OF THE WASHINGTON
CASCADES WITH LIGHT WINDS HAS ALLOWED AREAS OF FOG...LOCALLY
DENSE...TO FORM OVER THE LOWER YAKIMA VALLEY. A DENSE FOG ADVISORY
HAS BEEN ISSUED FOR DENSE FOG UNTIL 10 AM FOR THAT AREA...MAINLY
NEAR THE CITY OF TOPPENISH IN THE LOWER YAKIMA VALLEY. DRYING WILL
TAKE PLACE TODAY AS AN UPPER RIDGE BUILDS OVER THE REGION AND THE
CWA TODAY. HOWEVER THERE MAY STILL BE A FEW LINGERING SHOWERS OVER
THE CASCADES...MAINLY THIS MORNING. THE NEXT WEATHER SYSTEM TO
AFFECT THE REGION WILL BEGIN TO SPREAD MOISTURE EAST OF THE CASCADES
OVERNIGHT TONIGHT AND ON THURSDAY AS A WARM FRONT MOVES NORTHWARD.
THE BULK OF THE PRECIPITATION WILL BE OVER WESTERN AREAS WITH THIS
WARM FRONT. THEN A SLOW MOVING COLD FRONT WILL MOVE INTO AND EAST OF
THE CASCADES THURSDAY NIGHT AND FRIDAY. THE UPPER JET STREAM WILL BE
PARALLEL TO THE COLD FRONT WHICH WILL KEEP THE COLD FRONT SLOW
MOVING. THIS COULD RESULT IN HEAVY RAIN OVER THE CASCADES THURSDAY
INTO FRIDAY. BY LATE FRIDAY AFTERNOON MOST OF THE CWA WILL HAVE
LIKELY POPS AS THE COLD FRONT CONTINUES TO MOVE EAST ACROSS THE
AREA. WEST TO NORTHWEST WINDS WILL CAUSE DOWNSLOPE DRYING TO REDUCE
PRECIPITATION IN THE LEE OF THE WASHINGTON CASCADE EAST SLOPES...I.E
OVER THE LOWER COLUMBIA BASIN AND THE YAKIMA/KITTITAS VALLEYS. SNOW
LEVELS OF AROUND 9000 FEET WILL BE HIGH ENOUGH TO MAKE THIS A RAIN
EVENT...EVEN AT THE HIGHER ELEVATIONS. THE COLD FRONT WILL CONTINUE
TO MOVE EASTWARD GOING INTO THE EXTENDED PERIOD. TEMPERATURES WILL
BE A FEW DEGREES ABOVE NORMAL TODAY AND THURSDAY AND THEN COOLER AIR
WILL MOVE INTO THE REGION TO RESULT IN CLOSER TO NORMAL TEMPERATURES
ON FRIDAY. 88

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...A LONG WAVE TROUGH
WITH AN ASSOCIATED LOW PRESSURE SYSTEM AND COLD FRONT WILL BE MOVING
ACROSS THE REGION FRIDAY NIGHT BRINGING A CHANCE OF RAIN SHOWERS AND
SNOW ABOVE 4500 FEET.  AS THE SYSTEM EJECTS EASTWARD THROUGH THE DAY
SATURDAY...PRECIPITATION WILL GRADUALLY COME TO AN END UNDER WEST
AND NORTHWEST FLOW IN THE LOWER COLUMBIA BASIN.  SOME MOISTURE
SLOPPING OVER THE EAST SLOPES OF THE CASCADES AND HIGHLANDS ABOVE
3500 FEET MAY STILL CONTINUE INTO SATURDAY NIGHT AND EARLY SUNDAY
MORNING IN THE FORM OF MIXED PRECIPITATION OR SNOW.  TEMPERATURES
WILL BE NOTICEABLY COOLER FRIDAY AND SATURDAY WITH HIGH TEMPERATURES
IN THE MID 40S TO MID 50S ALONG THE LOWER ELEVATIONS AND IN THE
LOWER 30S TO LOWER 40S ALONG THE EAST SLOPES OF THE CASCADES AND THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.

AS THE LONGWAVE TROUGH WITH ASSOCIATED UPPER LEVEL LOW MOVES
EASTWARD ON SUNDAY...WRAP AROUND MOISTURE AND NORTHWESTERLY UPSLOPE
FLOW MAY BRING A SLIGHT CHANCE OF PRECIPITATION TO THE LOWER
ELEVATIONS AND A CHANCE OF PRECIPITATION TO THE HIGHER ELEVATIONS
SUNDAY AFTERNOON.  SNOW LEVELS ARE EXPECTED TO GRADUALLY RISE AS
WARM AIR ADVECTS IN BEHIND THE SYSTEM TO AROUND 5000-5500 FEET.
ANOTHER SHORTWAVE TROUGH MAY ENTER THE REGION MONDAY WITH A NICE
MOISTURE FETCH INTO THE REGION AS WEST TO SOUTHWEST FLOW ESTABLISHES
ITSELF OVER THE PACIFIC NORTHWEST.  DIFFERENCES EXISTS IN THE
TRAJECTORY OF EXPECTED SHORTWAVE TROUGH WITH ATTENDANT MOISTURE
FETCH...BUT WILL BLEND IN CLIMO POPS INTO GRIDS LATE IN THE PERIOD.
HIGH TEMPERATURES FOR SUNDAY THROUGH TUESDAY WILL BE ABOUT 3 TO 5
DEGREES WARMER THAN EARLIER IN THE PERIOD.  BIEDA

&&

.AVIATION...PREVIOUS DISCUSSION...06Z TAFS. SCT-BKN 040-080 TONIGHT
INTO WEDNESDAY MORNING. EXCEPTION WILL BE SOME LOWER CEILINGS
BKN-OVC 020-030 YKM DLS. PATCHY FOG POSSIBLE THROUGH MORNING DUE TO
RECENT RAINFALL. MID AND HIGH LEVEL CLOUDS WILL THEN INCREASE
WEDNESDAY AFTERNOON AND EVENING WITH APPROACHING WARM FRONT. WINDS
MOSTLY 5-15KT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  62  46  61  47 /  10  20  20  10
ALW  63  51  63  52 /  10  20  20  10
PSC  63  47  58  47 /  10  20  30  20
YKM  60  42  55  43 /  10  40  70  50
HRI  63  46  59  46 /  10  20  30  20
ELN  57  43  54  43 /  10  40  80  60
RDM  61  41  62  40 /  10  40  20  30
LGD  58  42  61  46 /  10  20  20  10
GCD  59  43  63  47 /  10  20  10  10
DLS  62  49  58  50 /  10  60  80  60

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...DENSE FOG ADVISORY UNTIL 10 AM PDT THIS MORNING WAZ027.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

88/98/98










000
FXUS66 KPDT 290537
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1033 PM PDT TUE OCT 28 2014

.SHORT TERM...SYSTEM MOVING ACROSS THE REGION THIS EVENING PRODUCING
A FAIR AMOUNT OF RAIN. MODELS SHOWING DECENT OMEGA THROUGH ABOUT
06Z THEN DIMINISHING SO EXPECT SHOWERS TO DECREASE LATER TONIGHT.
SATELLITE INDICATES SKIES WILL REMAIN MOSTLY CLOUDY. THIS WILL KEEP
LOW TEMPERATURES IN THE MID 30S TO MID 40S. UPPER LEVEL RIDGE
WEDNESDAY WITH PARTLY TO MOSTLY CLOUDY SKIES AND MILD TEMPS. WARM
FRONT PASSES THROUGH THE AREA WEDNESDAY NIGHT INTO THURSDAY. MOST OF
THE RAIN WITH THIS SYSTEM WILL BE OVER THE CASCADES INTO WESTERN
OREGON/WASHINGTON. 94

.AVIATION...06Z TAFS. SCT-BKN 040-080 TONIGHT INTO WEDNESDAY
MORNING. EXCEPTION WILL BE SOME LOWER CEILINGS BKN-OVC 020-030 YKM
DLS. PATCHY FOG POSSIBLE THROUGH MORNING DUE TO RECENT RAINFALL. MID
AND HIGH LEVEL CLOUDS WILL THEN INCREASE WEDNESDAY AFTERNOON AND
EVENING WITH APPROACHING WARM FRONT. WINDS MOSTLY 5-15KT.

&&

.PREV DISC... /ISSUED 335 PM PDT TUE OCT 28 2014/

SHORT TERM...TONIGHT THROUGH FRIDAY...THE REMNANTS OF A DECAYING
FRONTAL BOUNDARY WILL CONTINUE OVER THE FORECAST AREA OVERNIGHT.
SHOWERS WILL BE LIKELY THROUGH THE EVENING OVER NORTHEAST OREGON
WITH ISOLATED TO SCATTERED ELSEWHERE. SHOWERS WILL DECREASE FURTHER
OVERNIGHT AS THE FRONT WEAKENS AND AND SHIFTS EAST. WEDNESDAY WILL
SEE A TEMPORARY RIDGE OF HIGH PRESSURE BUILDING BACK OVER THE AREA
FOR DRY CONDITIONS. THIS WILL BE SHORT LIVED AS A DEEPENING TROUGH
OF LOW PRESSURE IN THE EASTERN PACIFIC WILL BRING A WARM FRONT UP
THE CASCADES WEDNESDAY NIGHT AND THURSDAY. THIS WILL PRIMARILY BRING
A CHANCE OF PRECIPITATION TO THE WESTERN PORTION OF THE FORECAST
AREA DURING THIS TIME. THEN LATE THURSDAY NIGHT AND FRIDAY A COLD
FRONT WILL MOVE ONSHORE AND INTO THE FORECAST AREA. THIS WILL SPREAD
THE PRECIPITATION EASTWARD ACROSS THE FORECAST AREA THROUGHOUT
FRIDAY. SNOW LEVELS WILL REMAIN HIGH AND OF NO CONSEQUENCE TO
TRANSPORTATION DURING THIS PERIOD. WINDY CONDITIONS WILL CONTINUE IN
THE SOUTHERN GRANDE RONDE VALLEY THROUGH THE EVENING THEN DECREASING
OVERNIGHT. WILL SEE SOME MORE INCREASING SOUTHERLY WINDS THURSDAY
NIGHT AND FRIDAY IN ADVANCE OF THE COLD FRONT.

LONG TERM...FRIDAY NIGHT THROUGH SUNDAY NIGHT...A LONG WAVE TROUGH
WILL BE APPROACHING THE PAC NW COAST BY FRIDAY NIGHT WITH PLENTY OF
MOISTURE AVAILABLE FOR PERIODS OF RAIN AND MOUNTAIN SNOW
SHOWERS...SNOW LEVELS SHOULD SLOWLY FALL TO 4500 - 5500 FEET BY
SATURDAY MORNING. ON SATURDAY THE UPPER LEVEL TROUGH AXIS IS
FORECAST TO BE CENTERED OVER THE AREA...WITH A SLIGHT CHANCE FOR
RAIN SHOWERS IN THE LOWER ELEVATIONS AND HIGH CHANCE TO LIKELY RAIN
AND SNOW SHOWERS CONTINUING FOR THE MOUNTAINS...SNOW LEVELS ARE
FORECAST TO BE 4000 - 5000 FEET THROUGH THE DAY. SATURDAY NIGHT WILL
SEE SNOW LEVELS DROPPING SLIGHTLY LOWER...HOVERING BETWEEN 3500 -
4500 FEET WITH A CHANCE FOR MORE RAIN AND SNOW SHOWERS IN THE
MOUNTAINS. THE 28/12Z ECMWF MODEL LEAVES BEHIND MORE MOISTURE INTO
THE CASCADES DURING THIS PERIOD...AND WOULD LIKELY LEAD TO SOME SNOW
ACCUMULATIONS ABOVE 4000 FEET...WILL HAVE TO WAIT FOR MORE MODEL
AGREEMENT TO SEE HOW THIS SITUATION WILL EVENTUALLY PLAY OUT. FOR
SUNDAY AND SUNDAY NIGHT THERE WAS CONTINUED MODEL
DISCREPANCIES...THE 28/12Z ECMWF MODEL SHOWED THE POTENTIAL FOR A
WEAK SYSTEM TO BRING MORE PACIFIC MOISTURE INTO MUCH OF THE
AREA...WHILE THE 28/12Z GFS HELD MOST OF THIS MOISTURE UP ON THE
WEST SIDE OF THE CASCADES. WITH THE MODEL INCONSISTENCIES I DECIDED
TO LEAVE A LOW CHANCE FOR MOUNTAIN RAIN AND SNOW SHOWERS IN THE
FORECAST...WITH ONLY A SLIGHT CHANCE OR BELOW IN THE COLUMBIA BASIN
REGION. SNOW LEVELS ARE FORECAST TO HOLD AT 4000 - 5000 FEET SUNDAY
INTO MONDAY. TEMPERATURES ARE EXPECTED TO BE AT OR SLIGHTLY BELOW
AVERAGE THROUGH THE PERIOD FOR MOST LOCATIONS. 77

MONDAY THROUGH TUESDAY NIGHT...MODELS CONTINUE TO PUSH A SURGE OF
MOISTURE ACROSS THE AREA MONDAY INTO TUESDAY...WITH HIGH PRESSURE
BUILDING BEHIND.  SNOW LEVELS ARE EXPECTED TO BE ON THE RISE TOWARD
THE END OF THE FORECAST PERIOD.  HAVE GONE WITH MOSTLY CHANCE
SHOWERS ACROSS THE BOARD...WITH HIGHER CHANCES ALONG THE EAST SLOPES
OF THE CASCADES.  WINDS MAY PICK UP ON MONDAY NIGHT AS A FAST MOVING
DRY SLOT PUSHES INTO THE AREA...BUT DO NOT ANTICIPATE ANYTHING
SIGNIFICANT AT THIS TIME. WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  63  46  61 /  60  10  20  20
ALW  49  62  51  63 /  70  10  20  20
PSC  45  63  47  58 /  60  10  20  20
YKM  39  57  42  55 /  70  10  40  70
HRI  44  63  46  59 /  60  10  20  20
ELN  40  55  43  54 /  70  10  40  80
RDM  38  60  41  62 /  30  10  40  20
LGD  40  57  42  61 /  60  20  20  20
GCD  41  58  43  63 /  50  10  20  10
DLS  46  61  49  58 /  60  10  60  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

94/








000
FXUS66 KPDT 290230
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
722 PM PDT TUE OCT 28 2014

.SHORT TERM...SYSTEM MOVING ACROSS THE REGION THIS EVENING PRODUCING
A FAIR AMOUNT OF RAIN. MODELS SHOWING DECENT OMEGA THROUGH ABOUT
06Z THEN DIMINISHING SO EXPECT SHOWERS TO DECREASE LATER TONIGHT.
SATELLITE INDICATES SKIES WILL REMAIN MOSTLY CLOUDY. THIS WILL KEEP
LOW TEMPERATURES IN THE MID 30S TO MID 40S. UPPER LEVEL RIDGE
WEDNESDAY WITH PARTLY TO MOSTLY CLOUDY SKIES AND MILD TEMPS. WARM
FRONT PASSES THROUGH THE AREA WEDNESDAY NIGHT INTO THURSDAY. MOST OF
THE RAIN WITH THIS SYSTEM WILL BE OVER THE CASCADES INTO WESTERN
OREGON/WASHINGTON. 94

&&

.PREV DISC... /ISSUED 335 PM PDT TUE OCT 28 2014/

SHORT TERM...TONIGHT THROUGH FRIDAY...THE REMNANTS OF A DECAYING
FRONTAL BOUNDARY WILL CONTINUE OVER THE FORECAST AREA OVERNIGHT.
SHOWERS WILL BE LIKELY THROUGH THE EVENING OVER NORTHEAST OREGON
WITH ISOLATED TO SCATTERED ELSEWHERE. SHOWERS WILL DECREASE FURTHER
OVERNIGHT AS THE FRONT WEAKENS AND AND SHIFTS EAST. WEDNESDAY WILL
SEE A TEMPORARY RIDGE OF HIGH PRESSURE BUILDING BACK OVER THE AREA
FOR DRY CONDITIONS. THIS WILL BE SHORT LIVED AS A DEEPENING TROUGH
OF LOW PRESSURE IN THE EASTERN PACIFIC WILL BRING A WARM FRONT UP
THE CASCADES WEDNESDAY NIGHT AND THURSDAY. THIS WILL PRIMARILY BRING
A CHANCE OF PRECIPITATION TO THE WESTERN PORTION OF THE FORECAST
AREA DURING THIS TIME. THEN LATE THURSDAY NIGHT AND FRIDAY A COLD
FRONT WILL MOVE ONSHORE AND INTO THE FORECAST AREA. THIS WILL SPREAD
THE PRECIPITATION EASTWARD ACROSS THE FORECAST AREA THROUGHOUT
FRIDAY. SNOW LEVELS WILL REMAIN HIGH AND OF NO CONSEQUENCE TO
TRANSPORTATION DURING THIS PERIOD. WINDY CONDITIONS WILL CONTINUE IN
THE SOUTHERN GRANDE RONDE VALLEY THROUGH THE EVENING THEN DECREASING
OVERNIGHT. WILL SEE SOME MORE INCREASING SOUTHERLY WINDS THURSDAY
NIGHT AND FRIDAY IN ADVANCE OF THE COLD FRONT.

LONG TERM...FRIDAY NIGHT THROUGH SUNDAY NIGHT...A LONG WAVE TROUGH
WILL BE APPROACHING THE PAC NW COAST BY FRIDAY NIGHT WITH PLENTY OF
MOISTURE AVAILABLE FOR PERIODS OF RAIN AND MOUNTAIN SNOW
SHOWERS...SNOW LEVELS SHOULD SLOWLY FALL TO 4500 - 5500 FEET BY
SATURDAY MORNING. ON SATURDAY THE UPPER LEVEL TROUGH AXIS IS
FORECAST TO BE CENTERED OVER THE AREA...WITH A SLIGHT CHANCE FOR
RAIN SHOWERS IN THE LOWER ELEVATIONS AND HIGH CHANCE TO LIKELY RAIN
AND SNOW SHOWERS CONTINUING FOR THE MOUNTAINS...SNOW LEVELS ARE
FORECAST TO BE 4000 - 5000 FEET THROUGH THE DAY. SATURDAY NIGHT WILL
SEE SNOW LEVELS DROPPING SLIGHTLY LOWER...HOVERING BETWEEN 3500 -
4500 FEET WITH A CHANCE FOR MORE RAIN AND SNOW SHOWERS IN THE
MOUNTAINS. THE 28/12Z ECMWF MODEL LEAVES BEHIND MORE MOISTURE INTO
THE CASCADES DURING THIS PERIOD...AND WOULD LIKELY LEAD TO SOME SNOW
ACCUMULATIONS ABOVE 4000 FEET...WILL HAVE TO WAIT FOR MORE MODEL
AGREEMENT TO SEE HOW THIS SITUATION WILL EVENTUALLY PLAY OUT. FOR
SUNDAY AND SUNDAY NIGHT THERE WAS CONTINUED MODEL
DISCREPANCIES...THE 28/12Z ECMWF MODEL SHOWED THE POTENTIAL FOR A
WEAK SYSTEM TO BRING MORE PACIFIC MOISTURE INTO MUCH OF THE
AREA...WHILE THE 28/12Z GFS HELD MOST OF THIS MOISTURE UP ON THE
WEST SIDE OF THE CASCADES. WITH THE MODEL INCONSISTENCIES I DECIDED
TO LEAVE A LOW CHANCE FOR MOUNTAIN RAIN AND SNOW SHOWERS IN THE
FORECAST...WITH ONLY A SLIGHT CHANCE OR BELOW IN THE COLUMBIA BASIN
REGION. SNOW LEVELS ARE FORECAST TO HOLD AT 4000 - 5000 FEET SUNDAY
INTO MONDAY. TEMPERATURES ARE EXPECTED TO BE AT OR SLIGHTLY BELOW
AVERAGE THROUGH THE PERIOD FOR MOST LOCATIONS. 77

MONDAY THROUGH TUESDAY NIGHT...MODELS CONTINUE TO PUSH A SURGE OF
MOISTURE ACROSS THE AREA MONDAY INTO TUESDAY...WITH HIGH PRESSURE
BUILDING BEHIND.  SNOW LEVELS ARE EXPECTED TO BE ON THE RISE TOWARD
THE END OF THE FORECAST PERIOD.  HAVE GONE WITH MOSTLY CHANCE
SHOWERS ACROSS THE BOARD...WITH HIGHER CHANCES ALONG THE EAST SLOPES
OF THE CASCADES.  WINDS MAY PICK UP ON MONDAY NIGHT AS A FAST MOVING
DRY SLOT PUSHES INTO THE AREA...BUT DO NOT ANTICIPATE ANYTHING
SIGNIFICANT AT THIS TIME. WEBER

AVIATION...00Z TAFS...MOSTLY VFR CONDITIONS EXPECTED TO CONTINUE
FOR THE NEXT 24 HOURS. CIGS WILL RANGE FROM BKN035-060 THIS
EVENING.  PRECIPITATION WILL CONTINUE TO MOVE ACROSS THE INTERIOR
PACIFIC NORTHWEST OVER THE NEXT 12 TO 18 HOURS.  EXPECT LOWERED
CIGS/VIS WITH RAIN.  DEPENDING ON THE CLEARING BEHIND THE RAIN
SHOWERS...THERE IS THE POSSIBILITY OF FOG DEVELOPING OVERNIGHT.  FOR
NOW CONFIDENCE IS NOT HIGH ENOUGH TO MENTION FOG IN THE FORECAST.
WINDS WILL GENERALLY BE 5-10 KTS BUT SOME AREAS MAY GUST TO 20-25
KTS THIS EVENING.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  63  46  61 /  60  10  20  20
ALW  49  62  51  63 /  70  10  20  20
PSC  45  63  47  58 /  60  10  20  20
YKM  39  57  42  55 /  70  10  40  70
HRI  44  63  46  59 /  60  10  20  20
ELN  40  55  43  54 /  70  10  40  80
RDM  38  60  41  62 /  30  10  40  20
LGD  40  57  42  61 /  60  20  20  20
GCD  41  58  43  63 /  50  10  20  10
DLS  46  61  49  58 /  60  10  60  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

94/







000
FXUS66 KPDT 282235 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
335 PM PDT TUE OCT 28 2014

UPDATE FOR AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY...THE REMNANTS OF A DECAYING
FRONTAL BOUNDARY WILL CONTINUE OVER THE FORECAST AREA OVERNIGHT.
SHOWERS WILL BE LIKELY THROUGH THE EVENING OVER NORTHEAST OREGON
WITH ISOLATED TO SCATTERED ELSEWHERE. SHOWERS WILL DECREASE FURTHER
OVERNIGHT AS THE FRONT WEAKENS AND AND SHIFTS EAST. WEDNESDAY WILL
SEE A TEMPORARY RIDGE OF HIGH PRESSURE BUILDING BACK OVER THE AREA
FOR DRY CONDITIONS. THIS WILL BE SHORT LIVED AS A DEEPENING TROUGH
OF LOW PRESSURE IN THE EASTERN PACIFIC WILL BRING A WARM FRONT UP
THE CASCADES WEDNESDAY NIGHT AND THURSDAY. THIS WILL PRIMARILY BRING
A CHANCE OF PRECIPITATION TO THE WESTERN PORTION OF THE FORECAST
AREA DURING THIS TIME. THEN LATE THURSDAY NIGHT AND FRIDAY A COLD
FRONT WILL MOVE ONSHORE AND INTO THE FORECAST AREA. THIS WILL SPREAD
THE PRECIPITATION EASTWARD ACROSS THE FORECAST AREA THROUGHOUT
FRIDAY. SNOW LEVELS WILL REMAIN HIGH AND OF NO CONSEQUENCE TO
TRANSPORTATION DURING THIS PERIOD. WINDY CONDITIONS WILL CONTINUE IN
THE SOUTHERN GRANDE RONDE VALLEY THROUGH THE EVENING THEN DECREASING
OVERNIGHT. WILL SEE SOME MORE INCREASING SOUTHERLY WINDS THURSDAY
NIGHT AND FRIDAY IN ADVANCE OF THE COLD FRONT.

.LONG TERM...FRIDAY NIGHT THROUGH SUNDAY NIGHT...A LONG WAVE TROUGH
WILL BE APPROACHING THE PAC NW COAST BY FRIDAY NIGHT WITH PLENTY OF
MOISTURE AVAILABLE FOR PERIODS OF RAIN AND MOUNTAIN SNOW
SHOWERS...SNOW LEVELS SHOULD SLOWLY FALL TO 4500 - 5500 FEET BY
SATURDAY MORNING. ON SATURDAY THE UPPER LEVEL TROUGH AXIS IS
FORECAST TO BE CENTERED OVER THE AREA...WITH A SLIGHT CHANCE FOR
RAIN SHOWERS IN THE LOWER ELEVATIONS AND HIGH CHANCE TO LIKELY RAIN
AND SNOW SHOWERS CONTINUING FOR THE MOUNTAINS...SNOW LEVELS ARE
FORECAST TO BE 4000 - 5000 FEET THROUGH THE DAY. SATURDAY NIGHT WILL
SEE SNOW LEVELS DROPPING SLIGHTLY LOWER...HOVERING BETWEEN 3500 -
4500 FEET WITH A CHANCE FOR MORE RAIN AND SNOW SHOWERS IN THE
MOUNTAINS. THE 28/12Z ECMWF MODEL LEAVES BEHIND MORE MOISTURE INTO
THE CASCADES DURING THIS PERIOD...AND WOULD LIKELY LEAD TO SOME SNOW
ACCUMULATIONS ABOVE 4000 FEET...WILL HAVE TO WAIT FOR MORE MODEL
AGREEMENT TO SEE HOW THIS SITUATION WILL EVENTUALLY PLAY OUT. FOR
SUNDAY AND SUNDAY NIGHT THERE WAS CONTINUED MODEL
DISCREPANCIES...THE 28/12Z ECMWF MODEL SHOWED THE POTENTIAL FOR A
WEAK SYSTEM TO BRING MORE PACIFIC MOISTURE INTO MUCH OF THE
AREA...WHILE THE 28/12Z GFS HELD MOST OF THIS MOISTURE UP ON THE
WEST SIDE OF THE CASCADES. WITH THE MODEL INCONSISTENCIES I DECIDED
TO LEAVE A LOW CHANCE FOR MOUNTAIN RAIN AND SNOW SHOWERS IN THE
FORECAST...WITH ONLY A SLIGHT CHANCE OR BELOW IN THE COLUMBIA BASIN
REGION. SNOW LEVELS ARE FORECAST TO HOLD AT 4000 - 5000 FEET SUNDAY
INTO MONDAY. TEMPERATURES ARE EXPECTED TO BE AT OR SLIGHTLY BELOW
AVERAGE THROUGH THE PERIOD FOR MOST LOCATIONS. 77

MONDAY THROUGH TUESDAY NIGHT...MODELS CONTINUE TO PUSH A SURGE OF
MOISTURE ACROSS THE AREA MONDAY INTO TUESDAY...WITH HIGH PRESSURE
BUILDING BEHIND.  SNOW LEVELS ARE EXPECTED TO BE ON THE RISE TOWARD
THE END OF THE FORECAST PERIOD.  HAVE GONE WITH MOSTLY CHANCE
SHOWERS ACROSS THE BOARD...WITH HIGHER CHANCES ALONG THE EAST SLOPES
OF THE CASCADES.  WINDS MAY PICK UP ON MONDAY NIGHT AS A FAST MOVING
DRY SLOT PUSHES INTO THE AREA...BUT DO NOT ANTICIPATE ANYTHING
SIGNIFICANT AT THIS TIME. WEBER


&&

.AVIATION...00Z TAFS...MOSTLY VFR CONDITIONS EXPECTED TO CONTINUE
FOR THE NEXT 24 HOURS. CIGS WILL RANGE FROM BKN035-060 THIS
EVENING.  PRECIPITATION WILL CONTINUE TO MOVE ACROSS THE INTERIOR
PACIFIC NORTHWEST OVER THE NEXT 12 TO 18 HOURS.  EXPECT LOWERED
CIGS/VIS WITH RAIN.  DEPENDING ON THE CLEARING BEHIND THE RAIN
SHOWERS...THERE IS THE POSSIBILITY OF FOG DEVELOPING OVERNIGHT.  FOR
NOW CONFIDENCE IS NOT HIGH ENOUGH TO MENTION FOG IN THE FORECAST.
WINDS WILL GENERALLY BE 5-10 KTS BUT SOME AREAS MAY GUST TO 20-25
KTS THIS EVENING.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  63  46  61 /  60  10  20  20
ALW  49  62  51  63 /  60  10  20  20
PSC  45  63  47  58 /  30  10  20  20
YKM  39  57  42  55 /  20  10  40  70
HRI  44  63  46  59 /  40  10  20  20
ELN  40  55  43  54 /  20  10  40  80
RDM  38  60  41  62 /  20  10  40  20
LGD  40  57  42  61 /  60  20  20  20
GCD  41  58  43  63 /  50  10  20  10
DLS  46  61  49  58 /  20  10  60  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/89/89








000
FXUS66 KPDT 282128
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
229 PM PDT TUE OCT 28 2014

.SHORT TERM...TONIGHT THROUGH FRIDAY...THE REMNANTS OF A DECAYING
FRONTAL BOUNDARY WILL CONTINUE OVER THE FORECAST AREA OVERNIGHT.
SHOWERS WILL BE LIKELY THROUGH THE EVENING OVER NORTHEAST OREGON
WITH ISOLATED TO SCATTERED ELSEWHERE. SHOWERS WILL DECREASE FURTHER
OVERNIGHT AS THE FRONT WEAKENS AND AND SHIFTS EAST. WEDNESDAY WILL
SEE A TEMPORARY RIDGE OF HIGH PRESSURE BUILDING BACK OVER THE AREA
FOR DRY CONDITIONS. THIS WILL BE SHORT LIVED AS A DEEPENING TROUGH
OF LOW PRESSURE IN THE EASTERN PACIFIC WILL BRING A WARM FRONT UP
THE CASCADES WEDNESDAY NIGHT AND THURSDAY. THIS WILL PRIMARILY BRING
A CHANCE OF PRECIPITATION TO THE WESTERN PORTION OF THE FORECAST
AREA DURING THIS TIME. THEN LATE THURSDAY NIGHT AND FRIDAY A COLD
FRONT WILL MOVE ONSHORE AND INTO THE FORECAST AREA. THIS WILL SPREAD
THE PRECIPITATION EASTWARD ACROSS THE FORECAST AREA THROUGHOUT
FRIDAY. SNOW LEVELS WILL REMAIN HIGH AND OF NO CONSEQUENCE TO
TRANSPORTATION DURING THIS PERIOD. WINDY CONDITIONS WILL CONTINUE IN
THE SOUTHERN GRANDE RONDE VALLEY THROUGH THE EVENING THEN DECREASING
OVERNIGHT. WILL SEE SOME MORE INCREASING SOUTHERLY WINDS THURSDAY
NIGHT AND FRIDAY IN ADVANCE OF THE COLD FRONT.

.LONG TERM...FRIDAY NIGHT THROUGH SUNDAY NIGHT...A LONG WAVE TROUGH
WILL BE APPROACHING THE PAC NW COAST BY FRIDAY NIGHT WITH PLENTY OF
MOISTURE AVAILABLE FOR PERIODS OF RAIN AND MOUNTAIN SNOW
SHOWERS...SNOW LEVELS SHOULD SLOWLY FALL TO 4500 - 5500 FEET BY
SATURDAY MORNING. ON SATURDAY THE UPPER LEVEL TROUGH AXIS IS
FORECAST TO BE CENTERED OVER THE AREA...WITH A SLIGHT CHANCE FOR
RAIN SHOWERS IN THE LOWER ELEVATIONS AND HIGH CHANCE TO LIKELY RAIN
AND SNOW SHOWERS CONTINUING FOR THE MOUNTAINS...SNOW LEVELS ARE
FORECAST TO BE 4000 - 5000 FEET THROUGH THE DAY. SATURDAY NIGHT WILL
SEE SNOW LEVELS DROPPING SLIGHTLY LOWER...HOVERING BETWEEN 3500 -
4500 FEET WITH A CHANCE FOR MORE RAIN AND SNOW SHOWERS IN THE
MOUNTAINS. THE 28/12Z ECMWF MODEL LEAVES BEHIND MORE MOISTURE INTO
THE CASCADES DURING THIS PERIOD...AND WOULD LIKELY LEAD TO SOME SNOW
ACCUMULATIONS ABOVE 4000 FEET...WILL HAVE TO WAIT FOR MORE MODEL
AGREEMENT TO SEE HOW THIS SITUATION WILL EVENTUALLY PLAY OUT. FOR
SUNDAY AND SUNDAY NIGHT THERE WAS CONTINUED MODEL
DISCREPANCIES...THE 28/12Z ECMWF MODEL SHOWED THE POTENTIAL FOR A
WEAK SYSTEM TO BRING MORE PACIFIC MOISTURE INTO MUCH OF THE
AREA...WHILE THE 28/12Z GFS HELD MOST OF THIS MOISTURE UP ON THE
WEST SIDE OF THE CASCADES. WITH THE MODEL INCONSISTENCIES I DECIDED
TO LEAVE A LOW CHANCE FOR MOUNTAIN RAIN AND SNOW SHOWERS IN THE
FORECAST...WITH ONLY A SLIGHT CHANCE OR BELOW IN THE COLUMBIA BASIN
REGION. SNOW LEVELS ARE FORECAST TO HOLD AT 4000 - 5000 FEET SUNDAY
INTO MONDAY. TEMPERATURES ARE EXPECTED TO BE AT OR SLIGHTLY BELOW
AVERAGE THROUGH THE PERIOD FOR MOST LOCATIONS. 77

MONDAY THROUGH TUESDAY NIGHT...MODELS CONTINUE TO PUSH A SURGE OF
MOISTURE ACROSS THE AREA MONDAY INTO TUESDAY...WITH HIGH PRESSURE
BUILDING BEHIND.  SNOW LEVELS ARE EXPECTED TO BE ON THE RISE TOWARD
THE END OF THE FORECAST PERIOD.  HAVE GONE WITH MOSTLY CHANCE
SHOWERS ACROSS THE BOARD...WITH HIGHER CHANCES ALONG THE EAST SLOPES
OF THE CASCADES.  WINDS MAY PICK UP ON MONDAY NIGHT AS A FAST MOVING
DRY SLOT PUSHES INTO THE AREA...BUT DO NOT ANTICIPATE ANYTHING
SIGNIFICANT AT THIS TIME. WEBER


&&

.AVIATION...18Z TAFS...MOSTLY VFR CONDITIONS EXPECTED TO CONTINUE
FOR THE NEXT 24 HOURS. CIGS WILL RANGE FROM BKN035-060 THIS
AFTERNOON AND EVENING.  PRECIPITATION WILL CONTINUE TO MOVE ACROSS
THE INTERIOR PACIFIC NORTHWEST OVER THE NEXT 12 TO 18 HOURS.  EXPECT
LOWERED CIGS/VIS WITH RAIN.  DEPENDING ON THE CLEARING BEHIND THE
RAIN...THERE MAY EVEN BE FOG DEVELOPING OVERNIGHT.  RIGHT NOW
CONFIDENCE IS NOT HIGH ENOUGH TO MENTION FOG IN THE FORECAST.  WINDS
WILL GENERALLY BE 5-10KTS BUT SOME AREAS MAY GUST TO 20 KTS THIS
AFTERNOON.  WEBER


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  63  46  61 /  60  10  20  20
ALW  49  62  51  63 /  60  10  20  20
PSC  45  63  47  58 /  30  10  20  20
YKM  39  57  42  55 /  20  10  40  70
HRI  44  63  46  59 /  40  10  20  20
ELN  40  55  43  54 /  20  10  40  80
RDM  38  60  41  62 /  20  10  40  20
LGD  40  57  42  61 /  60  20  20  20
GCD  41  58  43  63 /  50  10  20  10
DLS  46  61  49  58 /  20  10  60  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

$$

91/89/89










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