Home > Products > Valid Products > AFD

000
FXUS66 KPDT 300530 AAA
AFDPDT

AREA FORECAST DISCUSSION..UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
930 PM PST THU JAN 29 2015

UPDATED AVIATION DISCUSSION

.UPDATE...A WEAK UPPER LEVEL LOW HAS FORMED NEAR THE DALLES. THIS
LOW WILL DRIFT SOUTH OVERNIGHT AS AN UPPER LEVEL RIDGE BUILDS INTO
WASHINGTON. SOME LIGHT DRIZZLE IS POSSIBLE IN CENTRAL OREGON
OVERNIGHT AS THE LOW DRIFTS SOUTH. THE LOW HAS WEAKENED THE SURFACE
INVERSIONS OVER THE LOWER COLUMBIA BASIN SO THAT THE BASE OF THE
STRATUS LIFTED THIS AFTERNOON. THIS HAS KEPT THE FOG PATCHY THIS
EVENING. AS THIS LOW MOVES SOUTH OVERNIGHT THE SURFACE INVERSIONS
WILL STRENGTHEN AGAIN TOMORROW MORNING. HOWEVER THE FOG WILL
PROBABLY REMAIN PATCHY TONIGHT...SO I DO NOT EXPECT TO ISSUE ANY
DENSE FOG ADVISORIES. AS THE RIDGE REBUILDS TOMORROW FOG WILL
BECOME MORE WIDESPREAD. COONFIELD

&&

.AVIATION...06Z TAFS...LOW STRATUS AND MIST IS CURRENTLY AFFECTING
ALL TAF SITES AND WILL CONTINUE TO DO SO OVER THE NEXT 24 HOURS.
CIGS/VIS ARE EXPECTED TO LOWER SLIGHTLY OVERNIGHT WITH LIFR/IFR
CONDITIONS POSSIBLE AT ALL TAF SITES. WORST CONDITIONS WILL BE AT
KBND AND KRDM FRIDAY MORNING. THERE WILL LIKELY BE SOME FLUCTUATIONS
IN THE CIGS/VIS AT KRDM AND KBDN AS WEAK DISTURBANCE MOVES SOUTH.
KBDN AND POSSIBLY KRDM MAY BREAK OUT OF THE FOG/STRATUS FRIDAY
AFTERNOON. OTHER TAF SITES WILL HAVE SOME GRADUAL IMPROVEMENT AFTER
18Z FRIDAY...WITH MOST TAF SITES RISING INTO HIGH END IFR OR LOW END
MVFR CIGS BETWEEN 800-1800 FEET AGL. WINDS ARE FORECAST TO REMAIN
LIGHT. 76

&&

.PREV DISC... /ISSUED 340 PM PST THU JAN 29 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY. LOW CLOUDS AND FOG WILL
PERSIST ACROSS THE LOWER COLUMBIA BASIN AND SURROUNDING AREAS AND
ALSO OVER VALLEY LOCATIONS. MEANWHILE A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD INTO THE TWO STATE AREA WITH DRY CONDITIONS
EXPECTED INTO SATURDAY. LOCATIONS WHERE THERE ARE NO CLOUDS
AFTERNOON HIGH TEMPERATURES WILL BE ABOVE NORMAL. OTHERWISE A LOW
PRESSURE SYSTEM WILL APPROACH THE PACNW THIS WEEKEND WITH INCREASING
CLOUDS AND SHOWERS ARE EXPECTED SUNDAY AFTERNOON.

LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS
OFF RATHER ACTIVE WITH SEVERAL STORM SYSTEMS BRINGING PERIODS OF
RAIN AND MOUNTAIN SNOW FOR SUNDAY NIGHT THROUGH TUESDAY
MORNING...WENT HIGH CHANCE TO LOWER END LIKELY POPS FOR THIS TIME.
SNOW LEVELS ARE FORECAST TO BE BETWEEN 3500 TO 5500 FEET DURING
THE DAY...AND 2000 TO 4000 FEET AT NIGHT FROM SUNDAY NIGHT THROUGH
TUESDAY...THEREFORE HIGHER ELEVATION ACCUMULATING SNOW IS A
POSSIBILITY. AFTER THIS A WEAK...TRANSIENT UPPER RIDGE BUILDS INTO
THE REGION TUESDAY AFTERNOON INTO WEDNESDAY...THIS SHOULD BRING A
DRIER NORTHWEST FLOW INTO THE AREA. BY THE MIDDLE OF NEXT WEEK MODEL
DIFFERENCES BECOME MORE APPARENT...WITH BOTH THE TIMING AND STRENGTH
OF THE NEXT POTENTIAL SYSTEM IN QUESTION. THE 29/12Z ECMWF IS FASTER
BRINGING MORE MOISTURE INTO THE REGION ASSOCIATED WITH A WARM FRONT
BY WEDNESDAY AFTERNOON WHILE THE 29/12Z GFS ALLOWS THIS SYSTEM TO
PASS BY TOO FAR INTO THE PACIFIC WITH JUST SOME SCATTERED SHOWERS
ARRIVING WEDNESDAY NIGHT INTO THURSDAY. WITH THE UNCERTAINTY DECIDED
TO TAKE A BLEND OF THE GUIDANCE WHICH YIELDED SLIGHT CHANCE POPS IN
THE LOWER ELEVATIONS AND CHANCE POPS FOR RAIN/SNOW IN THE MOUNTAINS.
THROUGH MUCH OF THE EXTENDED PERIOD TEMPERATURES ARE FORECAST TO
REMAIN AT ABOVE AVERAGE LEVELS...AS ANY ARCTIC OR MODIFIED ARCTIC
AIR REMAINS ALONG AND EAST OF THE CONTINENTAL DIVIDE. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  32  39  30  41 /  10   0   0  10
ALW  35  40  33  41 /  10  10   0  10
PSC  33  40  31  41 /   0  10   0  10
YKM  31  40  29  40 /   0   0   0  10
HRI  33  41  31  42 /   0   0   0   0
ELN  30  40  29  41 /   0   0   0  10
RDM  29  48  27  50 /   0   0   0   0
LGD  29  46  28  45 /  10   0   0  10
GCD  29  49  27  49 /  10   0   0   0
DLS  36  44  34  45 /  10   0   0  10

&&

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

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

$$

76/76/76










000
FXUS66 KPDT 300530 AAA
AFDPDT

AREA FORECAST DISCUSSION..UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
930 PM PST THU JAN 29 2015

UPDATED AVIATION DISCUSSION

.UPDATE...A WEAK UPPER LEVEL LOW HAS FORMED NEAR THE DALLES. THIS
LOW WILL DRIFT SOUTH OVERNIGHT AS AN UPPER LEVEL RIDGE BUILDS INTO
WASHINGTON. SOME LIGHT DRIZZLE IS POSSIBLE IN CENTRAL OREGON
OVERNIGHT AS THE LOW DRIFTS SOUTH. THE LOW HAS WEAKENED THE SURFACE
INVERSIONS OVER THE LOWER COLUMBIA BASIN SO THAT THE BASE OF THE
STRATUS LIFTED THIS AFTERNOON. THIS HAS KEPT THE FOG PATCHY THIS
EVENING. AS THIS LOW MOVES SOUTH OVERNIGHT THE SURFACE INVERSIONS
WILL STRENGTHEN AGAIN TOMORROW MORNING. HOWEVER THE FOG WILL
PROBABLY REMAIN PATCHY TONIGHT...SO I DO NOT EXPECT TO ISSUE ANY
DENSE FOG ADVISORIES. AS THE RIDGE REBUILDS TOMORROW FOG WILL
BECOME MORE WIDESPREAD. COONFIELD

&&

.AVIATION...06Z TAFS...LOW STRATUS AND MIST IS CURRENTLY AFFECTING
ALL TAF SITES AND WILL CONTINUE TO DO SO OVER THE NEXT 24 HOURS.
CIGS/VIS ARE EXPECTED TO LOWER SLIGHTLY OVERNIGHT WITH LIFR/IFR
CONDITIONS POSSIBLE AT ALL TAF SITES. WORST CONDITIONS WILL BE AT
KBND AND KRDM FRIDAY MORNING. THERE WILL LIKELY BE SOME FLUCTUATIONS
IN THE CIGS/VIS AT KRDM AND KBDN AS WEAK DISTURBANCE MOVES SOUTH.
KBDN AND POSSIBLY KRDM MAY BREAK OUT OF THE FOG/STRATUS FRIDAY
AFTERNOON. OTHER TAF SITES WILL HAVE SOME GRADUAL IMPROVEMENT AFTER
18Z FRIDAY...WITH MOST TAF SITES RISING INTO HIGH END IFR OR LOW END
MVFR CIGS BETWEEN 800-1800 FEET AGL. WINDS ARE FORECAST TO REMAIN
LIGHT. 76

&&

.PREV DISC... /ISSUED 340 PM PST THU JAN 29 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY. LOW CLOUDS AND FOG WILL
PERSIST ACROSS THE LOWER COLUMBIA BASIN AND SURROUNDING AREAS AND
ALSO OVER VALLEY LOCATIONS. MEANWHILE A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD INTO THE TWO STATE AREA WITH DRY CONDITIONS
EXPECTED INTO SATURDAY. LOCATIONS WHERE THERE ARE NO CLOUDS
AFTERNOON HIGH TEMPERATURES WILL BE ABOVE NORMAL. OTHERWISE A LOW
PRESSURE SYSTEM WILL APPROACH THE PACNW THIS WEEKEND WITH INCREASING
CLOUDS AND SHOWERS ARE EXPECTED SUNDAY AFTERNOON.

LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS
OFF RATHER ACTIVE WITH SEVERAL STORM SYSTEMS BRINGING PERIODS OF
RAIN AND MOUNTAIN SNOW FOR SUNDAY NIGHT THROUGH TUESDAY
MORNING...WENT HIGH CHANCE TO LOWER END LIKELY POPS FOR THIS TIME.
SNOW LEVELS ARE FORECAST TO BE BETWEEN 3500 TO 5500 FEET DURING
THE DAY...AND 2000 TO 4000 FEET AT NIGHT FROM SUNDAY NIGHT THROUGH
TUESDAY...THEREFORE HIGHER ELEVATION ACCUMULATING SNOW IS A
POSSIBILITY. AFTER THIS A WEAK...TRANSIENT UPPER RIDGE BUILDS INTO
THE REGION TUESDAY AFTERNOON INTO WEDNESDAY...THIS SHOULD BRING A
DRIER NORTHWEST FLOW INTO THE AREA. BY THE MIDDLE OF NEXT WEEK MODEL
DIFFERENCES BECOME MORE APPARENT...WITH BOTH THE TIMING AND STRENGTH
OF THE NEXT POTENTIAL SYSTEM IN QUESTION. THE 29/12Z ECMWF IS FASTER
BRINGING MORE MOISTURE INTO THE REGION ASSOCIATED WITH A WARM FRONT
BY WEDNESDAY AFTERNOON WHILE THE 29/12Z GFS ALLOWS THIS SYSTEM TO
PASS BY TOO FAR INTO THE PACIFIC WITH JUST SOME SCATTERED SHOWERS
ARRIVING WEDNESDAY NIGHT INTO THURSDAY. WITH THE UNCERTAINTY DECIDED
TO TAKE A BLEND OF THE GUIDANCE WHICH YIELDED SLIGHT CHANCE POPS IN
THE LOWER ELEVATIONS AND CHANCE POPS FOR RAIN/SNOW IN THE MOUNTAINS.
THROUGH MUCH OF THE EXTENDED PERIOD TEMPERATURES ARE FORECAST TO
REMAIN AT ABOVE AVERAGE LEVELS...AS ANY ARCTIC OR MODIFIED ARCTIC
AIR REMAINS ALONG AND EAST OF THE CONTINENTAL DIVIDE. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  32  39  30  41 /  10   0   0  10
ALW  35  40  33  41 /  10  10   0  10
PSC  33  40  31  41 /   0  10   0  10
YKM  31  40  29  40 /   0   0   0  10
HRI  33  41  31  42 /   0   0   0   0
ELN  30  40  29  41 /   0   0   0  10
RDM  29  48  27  50 /   0   0   0   0
LGD  29  46  28  45 /  10   0   0  10
GCD  29  49  27  49 /  10   0   0   0
DLS  36  44  34  45 /  10   0   0  10

&&

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

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

$$

76/76/76











000
FXUS66 KPDT 300445
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
845 PM PST THU JAN 29 2015

.UPDATE...A WEAK UPPER LEVEL LOW HAS FORMED NEAR THE DALLES. THIS
LOW WILL DRIFT SOUTH OVERNIGHT AS AN UPPER LEVEL RIDGE BUILDS INTO
WASHINGTON. SOME LIGHT DRIZZLE IS POSSIBLE IN CENTRAL OREGON
OVERNIGHT AS THE LOW DRIFTS SOUTH. THE LOW HAS WEAKENED THE SURFACE
INVERSIONS OVER THE LOWER COLUMBIA BASIN SO THAT THE BASE OF THE
STRATUS LIFTED THIS AFTERNOON. THIS HAS KEPT THE FOG PATCHY THIS
EVENING. AS THIS LOW MOVES SOUTH OVERNIGHT THE SURFACE INVERSIONS
WILL STRENGTHEN AGAIN TOMORROW MORNING. HOWEVER THE FOG WILL
PROBABLY REMAIN PATCHY TONIGHT...SO I DO NOT EXPECT TO ISSUE ANY
DENSE FOG ADVISORIES. AS THE RIDGE REBUILDS TOMORROW FOG WILL
BECOME MORE WIDESPREAD. COONFIELD

&&

.PREV DISC... /ISSUED 340 PM PST THU JAN 29 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY. LOW CLOUDS AND FOG WILL
PERSIST ACROSS THE LOWER COLUMBIA BASIN AND SURROUNDING AREAS AND
ALSO OVER VALLEY LOCATIONS. MEANWHILE A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD INTO THE TWO STATE AREA WITH DRY CONDITIONS
EXPECTED INTO SATURDAY. LOCATIONS WHERE THERE ARE NO CLOUDS
AFTERNOON HIGH TEMPERATURES WILL BE ABOVE NORMAL. OTHERWISE A LOW
PRESSURE SYSTEM WILL APPROACH THE PACNW THIS WEEKEND WITH INCREASING
CLOUDS AND SHOWERS ARE EXPECTED SUNDAY AFTERNOON.

LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS
OFF RATHER ACTIVE WITH SEVERAL STORM SYSTEMS BRINGING PERIODS OF
RAIN AND MOUNTAIN SNOW FOR SUNDAY NIGHT THROUGH TUESDAY
MORNING...WENT HIGH CHANCE TO LOWER END LIKELY POPS FOR THIS TIME.
SNOW LEVELS ARE FORECAST TO BE BETWEEN 3500 TO 5500 FEET DURING
THE DAY...AND 2000 TO 4000 FEET AT NIGHT FROM SUNDAY NIGHT THROUGH
TUESDAY...THEREFORE HIGHER ELEVATION ACCUMULATING SNOW IS A
POSSIBILITY. AFTER THIS A WEAK...TRANSIENT UPPER RIDGE BUILDS INTO
THE REGION TUESDAY AFTERNOON INTO WEDNESDAY...THIS SHOULD BRING A
DRIER NORTHWEST FLOW INTO THE AREA. BY THE MIDDLE OF NEXT WEEK MODEL
DIFFERENCES BECOME MORE APPARENT...WITH BOTH THE TIMING AND STRENGTH
OF THE NEXT POTENTIAL SYSTEM IN QUESTION. THE 29/12Z ECMWF IS FASTER
BRINGING MORE MOISTURE INTO THE REGION ASSOCIATED WITH A WARM FRONT
BY WEDNESDAY AFTERNOON WHILE THE 29/12Z GFS ALLOWS THIS SYSTEM TO
PASS BY TOO FAR INTO THE PACIFIC WITH JUST SOME SCATTERED SHOWERS
ARRIVING WEDNESDAY NIGHT INTO THURSDAY. WITH THE UNCERTAINTY DECIDED
TO TAKE A BLEND OF THE GUIDANCE WHICH YIELDED SLIGHT CHANCE POPS IN
THE LOWER ELEVATIONS AND CHANCE POPS FOR RAIN/SNOW IN THE MOUNTAINS.
THROUGH MUCH OF THE EXTENDED PERIOD TEMPERATURES ARE FORECAST TO
REMAIN AT ABOVE AVERAGE LEVELS...AS ANY ARCTIC OR MODIFIED ARCTIC
AIR REMAINS ALONG AND EAST OF THE CONTINENTAL DIVIDE. 77

AVIATION...00Z TAFS...LOW STRATUS AND MIST IS CURRENTLY AFFECTING
ALL TAF SITES AND WILL CONTINUE TO DO SO OVER THE NEXT 24 HOURS.
CIGS/VIS ARE EXPECTED TO LOWER OVERNIGHT WITH ALL TAF SITES FORECAST
TO EXPERIENCE LIFR/IFR CONDITIONS OVERNIGHT INTO FRIDAY MORNING. THE
WORSE CONDITIONS ARE GENERALLY EXPECTED FROM ABOUT 08Z TO 18Z FRIDAY
AT MOST TERMINALS. VLIFR/LIFR FOG IS FORECAST AGAIN TONIGHT AT KBDN
AND KRDM...MAINLY FROM 07Z TO 18Z FRIDAY...HOWEVER THERE WILL LIKELY
BE SOME FLUCTUATIONS IN THE CIGS/VIS DURING THIS TIME. EXPECT SOME
GRADUAL IMPROVEMENT AFTER 18Z FRIDAY...WITH MOST TAF SITES RISING
INTO HIGH END IFR OR LOW END MVFR CIGS BETWEEN 800-1800 FEET AGL.
WINDS ARE FORECAST TO REMAIN LIGHT...AOB 10KTS THROUGH THE PERIOD. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  32  39  30  41 /  10   0   0  10
ALW  35  40  33  41 /  10  10   0  10
PSC  33  40  31  41 /   0  10   0  10
YKM  31  40  29  40 /   0   0   0  10
HRI  33  41  31  42 /   0   0   0   0
ELN  30  40  29  41 /   0   0   0  10
RDM  29  48  27  50 /   0   0   0   0
LGD  29  46  28  45 /  10   0   0  10
GCD  29  49  27  49 /  10   0   0   0
DLS  36  44  34  45 /  10   0   0  10

&&

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

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

$$

76/76/76








000
FXUS66 KPDT 300445
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
845 PM PST THU JAN 29 2015

.UPDATE...A WEAK UPPER LEVEL LOW HAS FORMED NEAR THE DALLES. THIS
LOW WILL DRIFT SOUTH OVERNIGHT AS AN UPPER LEVEL RIDGE BUILDS INTO
WASHINGTON. SOME LIGHT DRIZZLE IS POSSIBLE IN CENTRAL OREGON
OVERNIGHT AS THE LOW DRIFTS SOUTH. THE LOW HAS WEAKENED THE SURFACE
INVERSIONS OVER THE LOWER COLUMBIA BASIN SO THAT THE BASE OF THE
STRATUS LIFTED THIS AFTERNOON. THIS HAS KEPT THE FOG PATCHY THIS
EVENING. AS THIS LOW MOVES SOUTH OVERNIGHT THE SURFACE INVERSIONS
WILL STRENGTHEN AGAIN TOMORROW MORNING. HOWEVER THE FOG WILL
PROBABLY REMAIN PATCHY TONIGHT...SO I DO NOT EXPECT TO ISSUE ANY
DENSE FOG ADVISORIES. AS THE RIDGE REBUILDS TOMORROW FOG WILL
BECOME MORE WIDESPREAD. COONFIELD

&&

.PREV DISC... /ISSUED 340 PM PST THU JAN 29 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY. LOW CLOUDS AND FOG WILL
PERSIST ACROSS THE LOWER COLUMBIA BASIN AND SURROUNDING AREAS AND
ALSO OVER VALLEY LOCATIONS. MEANWHILE A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD INTO THE TWO STATE AREA WITH DRY CONDITIONS
EXPECTED INTO SATURDAY. LOCATIONS WHERE THERE ARE NO CLOUDS
AFTERNOON HIGH TEMPERATURES WILL BE ABOVE NORMAL. OTHERWISE A LOW
PRESSURE SYSTEM WILL APPROACH THE PACNW THIS WEEKEND WITH INCREASING
CLOUDS AND SHOWERS ARE EXPECTED SUNDAY AFTERNOON.

LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS
OFF RATHER ACTIVE WITH SEVERAL STORM SYSTEMS BRINGING PERIODS OF
RAIN AND MOUNTAIN SNOW FOR SUNDAY NIGHT THROUGH TUESDAY
MORNING...WENT HIGH CHANCE TO LOWER END LIKELY POPS FOR THIS TIME.
SNOW LEVELS ARE FORECAST TO BE BETWEEN 3500 TO 5500 FEET DURING
THE DAY...AND 2000 TO 4000 FEET AT NIGHT FROM SUNDAY NIGHT THROUGH
TUESDAY...THEREFORE HIGHER ELEVATION ACCUMULATING SNOW IS A
POSSIBILITY. AFTER THIS A WEAK...TRANSIENT UPPER RIDGE BUILDS INTO
THE REGION TUESDAY AFTERNOON INTO WEDNESDAY...THIS SHOULD BRING A
DRIER NORTHWEST FLOW INTO THE AREA. BY THE MIDDLE OF NEXT WEEK MODEL
DIFFERENCES BECOME MORE APPARENT...WITH BOTH THE TIMING AND STRENGTH
OF THE NEXT POTENTIAL SYSTEM IN QUESTION. THE 29/12Z ECMWF IS FASTER
BRINGING MORE MOISTURE INTO THE REGION ASSOCIATED WITH A WARM FRONT
BY WEDNESDAY AFTERNOON WHILE THE 29/12Z GFS ALLOWS THIS SYSTEM TO
PASS BY TOO FAR INTO THE PACIFIC WITH JUST SOME SCATTERED SHOWERS
ARRIVING WEDNESDAY NIGHT INTO THURSDAY. WITH THE UNCERTAINTY DECIDED
TO TAKE A BLEND OF THE GUIDANCE WHICH YIELDED SLIGHT CHANCE POPS IN
THE LOWER ELEVATIONS AND CHANCE POPS FOR RAIN/SNOW IN THE MOUNTAINS.
THROUGH MUCH OF THE EXTENDED PERIOD TEMPERATURES ARE FORECAST TO
REMAIN AT ABOVE AVERAGE LEVELS...AS ANY ARCTIC OR MODIFIED ARCTIC
AIR REMAINS ALONG AND EAST OF THE CONTINENTAL DIVIDE. 77

AVIATION...00Z TAFS...LOW STRATUS AND MIST IS CURRENTLY AFFECTING
ALL TAF SITES AND WILL CONTINUE TO DO SO OVER THE NEXT 24 HOURS.
CIGS/VIS ARE EXPECTED TO LOWER OVERNIGHT WITH ALL TAF SITES FORECAST
TO EXPERIENCE LIFR/IFR CONDITIONS OVERNIGHT INTO FRIDAY MORNING. THE
WORSE CONDITIONS ARE GENERALLY EXPECTED FROM ABOUT 08Z TO 18Z FRIDAY
AT MOST TERMINALS. VLIFR/LIFR FOG IS FORECAST AGAIN TONIGHT AT KBDN
AND KRDM...MAINLY FROM 07Z TO 18Z FRIDAY...HOWEVER THERE WILL LIKELY
BE SOME FLUCTUATIONS IN THE CIGS/VIS DURING THIS TIME. EXPECT SOME
GRADUAL IMPROVEMENT AFTER 18Z FRIDAY...WITH MOST TAF SITES RISING
INTO HIGH END IFR OR LOW END MVFR CIGS BETWEEN 800-1800 FEET AGL.
WINDS ARE FORECAST TO REMAIN LIGHT...AOB 10KTS THROUGH THE PERIOD. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  32  39  30  41 /  10   0   0  10
ALW  35  40  33  41 /  10  10   0  10
PSC  33  40  31  41 /   0  10   0  10
YKM  31  40  29  40 /   0   0   0  10
HRI  33  41  31  42 /   0   0   0   0
ELN  30  40  29  41 /   0   0   0  10
RDM  29  48  27  50 /   0   0   0   0
LGD  29  46  28  45 /  10   0   0  10
GCD  29  49  27  49 /  10   0   0   0
DLS  36  44  34  45 /  10   0   0  10

&&

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

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

$$

76/76/76







000
FXUS66 KPDT 292341 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
340 PM PST THU JAN 29 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH SUNDAY. LOW CLOUDS AND FOG WILL
PERSIST ACROSS THE LOWER COLUMBIA BASIN AND SURROUNDING AREAS AND
ALSO OVER VALLEY LOCATIONS. MEANWHILE A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD INTO THE TWO STATE AREA WITH DRY CONDITIONS
EXPECTED INTO SATURDAY. LOCATIONS WHERE THERE ARE NO CLOUDS
AFTERNOON HIGH TEMPERATURES WILL BE ABOVE NORMAL. OTHERWISE A LOW
PRESSURE SYSTEM WILL APPROACH THE PACNW THIS WEEKEND WITH INCREASING
CLOUDS AND SHOWERS ARE EXPECTED SUNDAY AFTERNOON.

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS
OFF RATHER ACTIVE WITH SEVERAL STORM SYSTEMS BRINGING PERIODS OF
RAIN AND MOUNTAIN SNOW FOR SUNDAY NIGHT THROUGH TUESDAY
MORNING...WENT HIGH CHANCE TO LOWER END LIKELY POPS FOR THIS TIME.
SNOW LEVELS ARE FORECAST TO BE BETWEEN 3500 TO 5500 FEET DURING
THE DAY...AND 2000 TO 4000 FEET AT NIGHT FROM SUNDAY NIGHT THROUGH
TUESDAY...THEREFORE HIGHER ELEVATION ACCUMULATING SNOW IS A
POSSIBILITY. AFTER THIS A WEAK...TRANSIENT UPPER RIDGE BUILDS INTO
THE REGION TUESDAY AFTERNOON INTO WEDNESDAY...THIS SHOULD BRING A
DRIER NORTHWEST FLOW INTO THE AREA. BY THE MIDDLE OF NEXT WEEK MODEL
DIFFERENCES BECOME MORE APPARENT...WITH BOTH THE TIMING AND STRENGTH
OF THE NEXT POTENTIAL SYSTEM IN QUESTION. THE 29/12Z ECMWF IS FASTER
BRINGING MORE MOISTURE INTO THE REGION ASSOCIATED WITH A WARM FRONT
BY WEDNESDAY AFTERNOON WHILE THE 29/12Z GFS ALLOWS THIS SYSTEM TO
PASS BY TOO FAR INTO THE PACIFIC WITH JUST SOME SCATTERED SHOWERS
ARRIVING WEDNESDAY NIGHT INTO THURSDAY. WITH THE UNCERTAINTY DECIDED
TO TAKE A BLEND OF THE GUIDANCE WHICH YIELDED SLIGHT CHANCE POPS IN
THE LOWER ELEVATIONS AND CHANCE POPS FOR RAIN/SNOW IN THE MOUNTAINS.
THROUGH MUCH OF THE EXTENDED PERIOD TEMPERATURES ARE FORECAST TO
REMAIN AT ABOVE AVERAGE LEVELS...AS ANY ARCTIC OR MODIFIED ARCTIC
AIR REMAINS ALONG AND EAST OF THE CONTINENTAL DIVIDE. 77


&&

.AVIATION...00Z TAFS...LOW STRATUS AND MIST IS CURRENTLY AFFECTING
ALL TAF SITES AND WILL CONTINUE TO DO SO OVER THE NEXT 24 HOURS.
CIGS/VIS ARE EXPECTED TO LOWER OVERNIGHT WITH ALL TAF SITES FORECAST
TO EXPERIENCE LIFR/IFR CONDITIONS OVERNIGHT INTO FRIDAY MORNING. THE
WORSE CONDITIONS ARE GENERALLY EXPECTED FROM ABOUT 08Z TO 18Z FRIDAY
AT MOST TERMINALS. VLIFR/LIFR FOG IS FORECAST AGAIN TONIGHT AT KBDN
AND KRDM...MAINLY FROM 07Z TO 18Z FRIDAY...HOWEVER THERE WILL LIKELY
BE SOME FLUCTUATIONS IN THE CIGS/VIS DURING THIS TIME. EXPECT SOME
GRADUAL IMPROVEMENT AFTER 18Z FRIDAY...WITH MOST TAF SITES RISING
INTO HIGH END IFR OR LOW END MVFR CIGS BETWEEN 800-1800 FEET AGL.
WINDS ARE FORECAST TO REMAIN LIGHT...AOB 10KTS THROUGH THE PERIOD. 77


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  32  39  30  41 /  10   0   0  10
ALW  35  40  33  41 /  10  10   0  10
PSC  33  40  31  41 /   0  10   0  10
YKM  31  40  29  40 /   0   0   0  10
HRI  33  41  31  42 /   0   0   0   0
ELN  30  40  29  41 /   0   0   0  10
RDM  29  48  27  50 /   0   0   0   0
LGD  29  46  28  45 /  10   0   0  10
GCD  29  49  27  49 /  10   0   0   0
DLS  36  44  34  45 /  10   0   0  10

&&

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

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

$$

97/77/77








000
FXUS66 KPDT 292231
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
230 PM PST THU JAN 29 2015

.SHORT TERM...TONIGHT THROUGH SUNDAY. LOW CLOUDS AND FOG WILL
PERSIST ACROSS THE LOWER COLUMBIA BASIN AND SURROUNDING AREAS AND
ALSO OVER VALLEY LOCATIONS. MEANWHILE A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD INTO THE TWO STATE AREA WITH DRY CONDITIONS
EXPECTED INTO SATURDAY. LOCATIONS WHERE THERE ARE NO CLOUDS
AFTERNOON HIGH TEMPERATURES WILL BE ABOVE NORMAL. OTHERWISE A LOW
PRESSURE SYSTEM WILL APPROACH THE PACNW THIS WEEKEND WITH INCREASING
CLOUDS AND SHOWERS ARE EXPECTED SUNDAY AFTERNOON.

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS
OFF RATHER ACTIVE WITH SEVERAL STORM SYSTEMS BRINGING PERIODS OF
RAIN AND MOUNTAIN SNOW FOR SUNDAY NIGHT THROUGH TUESDAY
MORNING...WENT HIGH CHANCE TO LOWER END LIKELY POPS FOR THIS TIME.
SNOW LEVELS ARE FORECAST TO BE BETWEEN 3500 TO 5500 FEET DURING
THE DAY...AND 2000 TO 4000 FEET AT NIGHT FROM SUNDAY NIGHT THROUGH
TUESDAY...THEREFORE HIGHER ELEVATION ACCUMULATING SNOW IS A
POSSIBILITY. AFTER THIS A WEAK...TRANSIENT UPPER RIDGE BUILDS INTO
THE REGION TUESDAY AFTERNOON INTO WEDNESDAY...THIS SHOULD BRING A
DRIER NORTHWEST FLOW INTO THE AREA. BY THE MIDDLE OF NEXT WEEK MODEL
DIFFERENCES BECOME MORE APPARENT...WITH BOTH THE TIMING AND STRENGTH
OF THE NEXT POTENTIAL SYSTEM IN QUESTION. THE 29/12Z ECMWF IS FASTER
BRINGING MORE MOISTURE INTO THE REGION ASSOCIATED WITH A WARM FRONT
BY WEDNESDAY AFTERNOON WHILE THE 29/12Z GFS ALLOWS THIS SYSTEM TO
PASS BY TOO FAR INTO THE PACIFIC WITH JUST SOME SCATTERED SHOWERS
ARRIVING WEDNESDAY NIGHT INTO THURSDAY. WITH THE UNCERTAINTY DECIDED
TO TAKE A BLEND OF THE GUIDANCE WHICH YIELDED SLIGHT CHANCE POPS IN
THE LOWER ELEVATIONS AND CHANCE POPS FOR RAIN/SNOW IN THE MOUNTAINS.
THROUGH MUCH OF THE EXTENDED PERIOD TEMPERATURES ARE FORECAST TO
REMAIN AT ABOVE AVERAGE LEVELS...AS ANY ARCTIC OR MODIFIED ARCTIC
AIR REMAINS ALONG AND EAST OF THE CONTINENTAL DIVIDE. 77


&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...IFR OR LIFR CIGS ARE
EXPECTED UNTIL 19-21Z TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND
LOW CLOUDS. KRDM AND KBDN WILL BE VLIFR UNTIL 19-20Z TODAY DUE TO
FOG AND CIGS NEAR 500 FEET AGL....AFTER IMPROVEMENT THIS AFTERNOON
AND EVENING EXPECT VLIFR CIGS/VIS TO RETURN AT KRDM AND KBDN AFTER
10Z FRIDAY IN FOG.  KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO
CIGS NEAR 1500 FT AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR
OUTSIDE OF AREAS AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG.
WINDS WILL REMAIN LIGHT AOB 10KTS AT ALL TAF SITES FOR THE NEXT 24
HOURS. 77


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  32  39  30  41 /  10   0   0  10
ALW  35  40  33  41 /  10  10   0  10
PSC  33  40  31  41 /   0  10   0  10
YKM  31  40  29  40 /   0   0   0  10
HRI  33  41  31  42 /   0   0   0   0
ELN  30  40  29  41 /   0   0   0  10
RDM  29  48  27  50 /   0   0   0   0
LGD  29  46  28  45 /  10   0   0  10
GCD  29  49  27  49 /  10   0   0   0
DLS  36  44  34  45 /  10   0   0  10

&&

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

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

$$

97/77/77













000
FXUS66 KPDT 292231
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
230 PM PST THU JAN 29 2015

.SHORT TERM...TONIGHT THROUGH SUNDAY. LOW CLOUDS AND FOG WILL
PERSIST ACROSS THE LOWER COLUMBIA BASIN AND SURROUNDING AREAS AND
ALSO OVER VALLEY LOCATIONS. MEANWHILE A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD INTO THE TWO STATE AREA WITH DRY CONDITIONS
EXPECTED INTO SATURDAY. LOCATIONS WHERE THERE ARE NO CLOUDS
AFTERNOON HIGH TEMPERATURES WILL BE ABOVE NORMAL. OTHERWISE A LOW
PRESSURE SYSTEM WILL APPROACH THE PACNW THIS WEEKEND WITH INCREASING
CLOUDS AND SHOWERS ARE EXPECTED SUNDAY AFTERNOON.

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY NIGHT...THE PERIOD STARTS
OFF RATHER ACTIVE WITH SEVERAL STORM SYSTEMS BRINGING PERIODS OF
RAIN AND MOUNTAIN SNOW FOR SUNDAY NIGHT THROUGH TUESDAY
MORNING...WENT HIGH CHANCE TO LOWER END LIKELY POPS FOR THIS TIME.
SNOW LEVELS ARE FORECAST TO BE BETWEEN 3500 TO 5500 FEET DURING
THE DAY...AND 2000 TO 4000 FEET AT NIGHT FROM SUNDAY NIGHT THROUGH
TUESDAY...THEREFORE HIGHER ELEVATION ACCUMULATING SNOW IS A
POSSIBILITY. AFTER THIS A WEAK...TRANSIENT UPPER RIDGE BUILDS INTO
THE REGION TUESDAY AFTERNOON INTO WEDNESDAY...THIS SHOULD BRING A
DRIER NORTHWEST FLOW INTO THE AREA. BY THE MIDDLE OF NEXT WEEK MODEL
DIFFERENCES BECOME MORE APPARENT...WITH BOTH THE TIMING AND STRENGTH
OF THE NEXT POTENTIAL SYSTEM IN QUESTION. THE 29/12Z ECMWF IS FASTER
BRINGING MORE MOISTURE INTO THE REGION ASSOCIATED WITH A WARM FRONT
BY WEDNESDAY AFTERNOON WHILE THE 29/12Z GFS ALLOWS THIS SYSTEM TO
PASS BY TOO FAR INTO THE PACIFIC WITH JUST SOME SCATTERED SHOWERS
ARRIVING WEDNESDAY NIGHT INTO THURSDAY. WITH THE UNCERTAINTY DECIDED
TO TAKE A BLEND OF THE GUIDANCE WHICH YIELDED SLIGHT CHANCE POPS IN
THE LOWER ELEVATIONS AND CHANCE POPS FOR RAIN/SNOW IN THE MOUNTAINS.
THROUGH MUCH OF THE EXTENDED PERIOD TEMPERATURES ARE FORECAST TO
REMAIN AT ABOVE AVERAGE LEVELS...AS ANY ARCTIC OR MODIFIED ARCTIC
AIR REMAINS ALONG AND EAST OF THE CONTINENTAL DIVIDE. 77


&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...IFR OR LIFR CIGS ARE
EXPECTED UNTIL 19-21Z TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND
LOW CLOUDS. KRDM AND KBDN WILL BE VLIFR UNTIL 19-20Z TODAY DUE TO
FOG AND CIGS NEAR 500 FEET AGL....AFTER IMPROVEMENT THIS AFTERNOON
AND EVENING EXPECT VLIFR CIGS/VIS TO RETURN AT KRDM AND KBDN AFTER
10Z FRIDAY IN FOG.  KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO
CIGS NEAR 1500 FT AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR
OUTSIDE OF AREAS AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG.
WINDS WILL REMAIN LIGHT AOB 10KTS AT ALL TAF SITES FOR THE NEXT 24
HOURS. 77


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  32  39  30  41 /  10   0   0  10
ALW  35  40  33  41 /  10  10   0  10
PSC  33  40  31  41 /   0  10   0  10
YKM  31  40  29  40 /   0   0   0  10
HRI  33  41  31  42 /   0   0   0   0
ELN  30  40  29  41 /   0   0   0  10
RDM  29  48  27  50 /   0   0   0   0
LGD  29  46  28  45 /  10   0   0  10
GCD  29  49  27  49 /  10   0   0   0
DLS  36  44  34  45 /  10   0   0  10

&&

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

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

$$

97/77/77












000
FXUS66 KPDT 291755 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
955 AM PST THU JAN 29 2015

UPDATED AVIATION DISCUSSION

.UPDATE...AREAS OF LOW CLOUDS AND FOG PERSIST ACROSS PORTIONS OF THE
REGION THIS MORNING AND A DENSE FOG ADVISORY CONTINUES FOR CENTRAL
OREGON AND THE KITTITAS VALLEY UNTIL 10 AM. OTHERWISE SOME HIGH
LEVEL CLOUDS WERE ACROSS THE REGION AND ARE EXPECTED FOR THE
REMAINDER OF THE DAY. AFTN HIGH TEMPS SHOULD BE NEAR NORMAL...EXCEPT
WHERE LOW CLOUDS AND FOG PERSIST...AND THE PRESENT SHORT TERM
FORECAST APPEARS ON TRACK FOR NOW.

&&

.AVIATION...18Z TAFS...IFR OR LIFR CIGS ARE EXPECTED UNTIL 19-21Z
TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND LOW CLOUDS. KRDM AND
KBDN WILL BE VLIFR UNTIL 19-20Z TODAY DUE TO FOG AND CIGS NEAR 500
FEET AGL....AFTER IMPROVEMENT THIS AFTERNOON AND EVENING EXPECT
VLIFR CIGS/VIS TO RETURN AT KRDM AND KBDN AFTER 10Z FRIDAY IN FOG.
KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO CIGS NEAR 1500 FT
AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR OUTSIDE OF AREAS
AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG. WINDS WILL REMAIN
LIGHT AOB 10KTS AT ALL TAF SITES FOR THE NEXT 24 HOURS.

&&

.PREV DISC... /ISSUED 359 AM PST THU JAN 29 2015/

SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY NIGHT FOR DRY CONDITIONS FOLLOWED BY A WARM
FRONT AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH
SNOW LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN AND SNOW LIKELY WITH
SNOW LEVEL AROUND 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT
BRINGS RAIN AND MOUNTAIN SNOW WITH THE SNOW LEVEL AROUND 4500 FEET.
TUESDAY AND WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION
FOR DRY CONDITIONS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  42  35  40  33 /  10  10  10   0
PSC  44  33  41  31 /  10   0  10   0
YKM  42  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  45  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING WAZ026.

&&

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

$$

97/77







000
FXUS66 KPDT 291755 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
955 AM PST THU JAN 29 2015

UPDATED AVIATION DISCUSSION

.UPDATE...AREAS OF LOW CLOUDS AND FOG PERSIST ACROSS PORTIONS OF THE
REGION THIS MORNING AND A DENSE FOG ADVISORY CONTINUES FOR CENTRAL
OREGON AND THE KITTITAS VALLEY UNTIL 10 AM. OTHERWISE SOME HIGH
LEVEL CLOUDS WERE ACROSS THE REGION AND ARE EXPECTED FOR THE
REMAINDER OF THE DAY. AFTN HIGH TEMPS SHOULD BE NEAR NORMAL...EXCEPT
WHERE LOW CLOUDS AND FOG PERSIST...AND THE PRESENT SHORT TERM
FORECAST APPEARS ON TRACK FOR NOW.

&&

.AVIATION...18Z TAFS...IFR OR LIFR CIGS ARE EXPECTED UNTIL 19-21Z
TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND LOW CLOUDS. KRDM AND
KBDN WILL BE VLIFR UNTIL 19-20Z TODAY DUE TO FOG AND CIGS NEAR 500
FEET AGL....AFTER IMPROVEMENT THIS AFTERNOON AND EVENING EXPECT
VLIFR CIGS/VIS TO RETURN AT KRDM AND KBDN AFTER 10Z FRIDAY IN FOG.
KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO CIGS NEAR 1500 FT
AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR OUTSIDE OF AREAS
AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG. WINDS WILL REMAIN
LIGHT AOB 10KTS AT ALL TAF SITES FOR THE NEXT 24 HOURS.

&&

.PREV DISC... /ISSUED 359 AM PST THU JAN 29 2015/

SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY NIGHT FOR DRY CONDITIONS FOLLOWED BY A WARM
FRONT AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH
SNOW LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN AND SNOW LIKELY WITH
SNOW LEVEL AROUND 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT
BRINGS RAIN AND MOUNTAIN SNOW WITH THE SNOW LEVEL AROUND 4500 FEET.
TUESDAY AND WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION
FOR DRY CONDITIONS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  42  35  40  33 /  10  10  10   0
PSC  44  33  41  31 /  10   0  10   0
YKM  42  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  45  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING WAZ026.

&&

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

$$

97/77








000
FXUS66 KPDT 291624 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
815 AM PST THU JAN 29 2015

.UPDATE...AREAS OF LOW CLOUDS AND FOG PERSIST ACROSS PORTIONS OF THE
REGION THIS MORNING AND A DENSE FOG ADVISORY CONTINUES FOR CENTRAL
OREGON AND THE KITTITAS VALLEY UNTIL 10 AM. OTHERWISE SOME HIGH
LEVEL CLOUDS WERE ACROSS THE REGION AND ARE EXPECTED FOR THE
REMAINDER OF THE DAY. AFTN HIGH TEMPS SHOULD BE NEAR NORMAL...EXCEPT
WHERE LOW CLOUDS AND FOG PERSIST...AND THE PRESENT SHORT TERM
FORECAST APPEARS ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 359 AM PST THU JAN 29 2015/

SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY NIGHT FOR DRY CONDITIONS FOLLOWED BY A WARM
FRONT AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH
SNOW LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN AND SNOW LIKELY WITH
SNOW LEVEL AROUND 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT
BRINGS RAIN AND MOUNTAIN SNOW WITH THE SNOW LEVEL AROUND 4500 FEET.
TUESDAY AND WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION
FOR DRY CONDITIONS.  POLAN

AVIATION...12Z TAFS...IFR OR LIFR CONDITIONS ARE EXPECTED UNTIL 19Z
TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND LOW CLOUDS. KRDM AND
KBDN WILL BE VLIFR UNTIL 18Z TODAY DUE TO DENSE FOG AND CIGS NEAR
100 FEET AGL. KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO CIGS
NEAR 1500 FT AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR OUTSIDE
OF AREAS AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG. AFTER 19Z
CONDITIONS WILL IMPROVE TEMPORARILY AND THEN WILL WORSEN AGAIN THIS
EVENING. WINDS WILL REMAIN LIGHT AND VARIABLE AT ALL TAF SITES FOR
THE NEXT 24 HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  42  35  40  33 /  10  10  10   0
PSC  44  33  41  31 /  10   0  10   0
YKM  42  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  45  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING WAZ026.

&&

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

$$

97/









000
FXUS66 KPDT 291624 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
815 AM PST THU JAN 29 2015

.UPDATE...AREAS OF LOW CLOUDS AND FOG PERSIST ACROSS PORTIONS OF THE
REGION THIS MORNING AND A DENSE FOG ADVISORY CONTINUES FOR CENTRAL
OREGON AND THE KITTITAS VALLEY UNTIL 10 AM. OTHERWISE SOME HIGH
LEVEL CLOUDS WERE ACROSS THE REGION AND ARE EXPECTED FOR THE
REMAINDER OF THE DAY. AFTN HIGH TEMPS SHOULD BE NEAR NORMAL...EXCEPT
WHERE LOW CLOUDS AND FOG PERSIST...AND THE PRESENT SHORT TERM
FORECAST APPEARS ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 359 AM PST THU JAN 29 2015/

SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY NIGHT FOR DRY CONDITIONS FOLLOWED BY A WARM
FRONT AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH
SNOW LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN AND SNOW LIKELY WITH
SNOW LEVEL AROUND 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT
BRINGS RAIN AND MOUNTAIN SNOW WITH THE SNOW LEVEL AROUND 4500 FEET.
TUESDAY AND WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION
FOR DRY CONDITIONS.  POLAN

AVIATION...12Z TAFS...IFR OR LIFR CONDITIONS ARE EXPECTED UNTIL 19Z
TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND LOW CLOUDS. KRDM AND
KBDN WILL BE VLIFR UNTIL 18Z TODAY DUE TO DENSE FOG AND CIGS NEAR
100 FEET AGL. KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO CIGS
NEAR 1500 FT AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR OUTSIDE
OF AREAS AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG. AFTER 19Z
CONDITIONS WILL IMPROVE TEMPORARILY AND THEN WILL WORSEN AGAIN THIS
EVENING. WINDS WILL REMAIN LIGHT AND VARIABLE AT ALL TAF SITES FOR
THE NEXT 24 HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  42  35  40  33 /  10  10  10   0
PSC  44  33  41  31 /  10   0  10   0
YKM  42  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  45  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING WAZ026.

&&

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

$$

97/










000
FXUS66 KPDT 291159 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
359 AM PST THU JAN 29 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY NIGHT FOR DRY CONDITIONS FOLLOWED BY A WARM
FRONT AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH
SNOW LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN AND SNOW LIKELY WITH
SNOW LEVEL AROUND 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT
BRINGS RAIN AND MOUNTAIN SNOW WITH THE SNOW LEVEL AROUND 4500 FEET.
TUESDAY AND WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION
FOR DRY CONDITIONS.  POLAN

&&

.AVIATION...12Z TAFS...IFR OR LIFR CONDITIONS ARE EXPECTED UNTIL 19Z
TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND LOW CLOUDS. KRDM AND
KBDN WILL BE VLIFR UNTIL 18Z TODAY DUE TO DENSE FOG AND CIGS NEAR
100 FEET AGL. KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO CIGS
NEAR 1500 FT AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR OUTSIDE
OF AREAS AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG. AFTER 19Z
CONDITIONS WILL IMPROVE TEMPORARILY AND THEN WILL WORSEN AGAIN THIS
EVENING. WINDS WILL REMAIN LIGHT AND VARIABLE AT ALL TAF SITES FOR
THE NEXT 24 HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  40  35  40  33 /  10  10  10   0
PSC  42  33  41  31 /  10   0  10   0
YKM  38  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  44  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...NONE.
&&

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

$$

94/99/99







000
FXUS66 KPDT 291159 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
359 AM PST THU JAN 29 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY NIGHT FOR DRY CONDITIONS FOLLOWED BY A WARM
FRONT AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH
SNOW LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN AND SNOW LIKELY WITH
SNOW LEVEL AROUND 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT
BRINGS RAIN AND MOUNTAIN SNOW WITH THE SNOW LEVEL AROUND 4500 FEET.
TUESDAY AND WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION
FOR DRY CONDITIONS.  POLAN

&&

.AVIATION...12Z TAFS...IFR OR LIFR CONDITIONS ARE EXPECTED UNTIL 19Z
TODAY AT KALW, KPDT, KYKM, KDLS DUE TO FOG AND LOW CLOUDS. KRDM AND
KBDN WILL BE VLIFR UNTIL 18Z TODAY DUE TO DENSE FOG AND CIGS NEAR
100 FEET AGL. KPSC WILL HAVE MVFR FOR THE NEXT 24 HOURS DUE TO CIGS
NEAR 1500 FT AGL. OTHERWISE, MID AND HIGH CLOUDS WILL OCCUR OUTSIDE
OF AREAS AFFECTED BY THE LOW STRATUS AND ASSOCIATED FOG. AFTER 19Z
CONDITIONS WILL IMPROVE TEMPORARILY AND THEN WILL WORSEN AGAIN THIS
EVENING. WINDS WILL REMAIN LIGHT AND VARIABLE AT ALL TAF SITES FOR
THE NEXT 24 HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  40  35  40  33 /  10  10  10   0
PSC  42  33  41  31 /  10   0  10   0
YKM  38  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  44  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...NONE.
&&

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

$$

94/99/99








000
FXUS66 KPDT 291106
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST THU JAN 29 2015

.SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY FOR DRY CONDITIONS FOLLOWED BY A WARM FRONT
AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH SNOW
LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN LIKELY WITH SNOW LIKELY
ABOVE 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT BRING RAIN
AND MOUNTAINS SNOW WITH SNOW LEVEL AROUND 4500 FEET. TUESDAY AND
WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION FOR DRY
CONDITIONS. POLAN

&&

.PREVIOUS AVIATION DISCUSSION...06Z TAFS...IFR OR MVFR CONDITIONS
ARE EXPECTED UNTIL 19Z THURSDAY FOR KALW...KPSC...KYKM...KDLS AND
POSSIBLY AT KPDT DUE TO FOG AND LOW CLOUDS. KRDM AND KBDN SHOULD BE
VFR WITH JUST SOME MID AND HIGH CLOUDS. AFTER 19Z CONDITIONS WILL
IMPROVE TEMPORARILY AND THEN WILL WORSEN AGAIN THURSDAY EVENING.
WINDS WILL REMAIN LIGHT AND VARIABLE AT ALL TAF SITES THROUGH THE
NEXT 24 HOURS. 88

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  40  35  40  33 /  10  10  10   0
PSC  42  33  41  31 /  10   0  10   0
YKM  38  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  44  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...NONE.
&&

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

$$

94/99/99








000
FXUS66 KPDT 291106
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST THU JAN 29 2015

.SHORT TERM...TODAY THROUGH SATURDAY. A WEAK UPPER TROUGH WILL MOVE
ACROSS THE REGION TODAY. NOT EXPECTING ANY PRECIPITATION WITH THIS
SYSTEM. JUST AN INCREASE IN MID AND HIGH LEVEL CLOUDS. OBSERVATIONS
INDICATE FAIRLY EXTENSIVE AREA OF STRATUS CONTINUES OVER THE
COLUMBIA BASIN AND ADJACENT VALLEYS...EXTENDING INTO CENTRAL OREGON
TO REDMOND AND BEND. AREAS OF FOG AND PATCHY DRIZZLE CONTINUE AS
WELL. AS THE TROUGH MOVES EAST OF THE REGION TONIGHT THE UPPER
RIDGE BUILDS BACK FRIDAY INTO SATURDAY. LOW LEVEL INVERSION REMAINS
IN PLACE WITH STRATUS AND FOG CONTINUING THE NEXT FEW DAYS OVER THE
COLUMBIA BASIN. HIGH TEMPS WILL BE IN THE 40S.   94

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY...UPPER LEVEL RIDGE OF
HIGH PRESSURE SATURDAY FOR DRY CONDITIONS FOLLOWED BY A WARM FRONT
AND ASSOCIATED PRECIPITATION DURING THE DAY ON SUNDAY WITH SNOW
LEVELS 6000-6500 FEET. SUNDAY NIGHT RAIN LIKELY WITH SNOW LIKELY
ABOVE 4000 FEET. MONDAY/MONDAY NIGHT ANOTHER WARM FRONT BRING RAIN
AND MOUNTAINS SNOW WITH SNOW LEVEL AROUND 4500 FEET. TUESDAY AND
WEDNESDAY AN UPPER LEVEL RIDGE BUILDS BACK OVER REGION FOR DRY
CONDITIONS. POLAN

&&

.PREVIOUS AVIATION DISCUSSION...06Z TAFS...IFR OR MVFR CONDITIONS
ARE EXPECTED UNTIL 19Z THURSDAY FOR KALW...KPSC...KYKM...KDLS AND
POSSIBLY AT KPDT DUE TO FOG AND LOW CLOUDS. KRDM AND KBDN SHOULD BE
VFR WITH JUST SOME MID AND HIGH CLOUDS. AFTER 19Z CONDITIONS WILL
IMPROVE TEMPORARILY AND THEN WILL WORSEN AGAIN THURSDAY EVENING.
WINDS WILL REMAIN LIGHT AND VARIABLE AT ALL TAF SITES THROUGH THE
NEXT 24 HOURS. 88

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  32  40  30 /  10  10   0   0
ALW  40  35  40  33 /  10  10  10   0
PSC  42  33  41  31 /  10   0  10   0
YKM  38  31  41  29 /  10   0   0   0
HRI  40  33  41  31 /  10   0   0   0
ELN  44  30  40  29 /  10   0   0   0
RDM  48  29  48  27 /  10   0   0   0
LGD  48  29  46  28 /  10  10   0   0
GCD  51  29  49  27 /  10  10   0   0
DLS  46  36  44  34 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 10 AM PST THIS MORNING ORZ511.

WA...NONE.
&&

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

$$

94/99/99







000
FXUS66 KPDT 290311
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
711 PM PST WED JAN 28 2015

.UPDATE...MAIN CONCERN TONIGHT WILL BE WIDESPREAD LOW CLOUDS AND/OR
FOG IN THE LOWER COLUMBIA BASIN AND ADJACENT VALLEYS AND NORTH
CENTRAL OREGON. THE FOG HAS SPREAD INTO THE OREGON BLUE MOUNTAIN
FOOTHILLS DURING THE PAST COUPLE OF HOURS...BUT IT HAS LIFTED SOME
INTO A STRATUS LAYER. DENSE FOG ADVISORIES ARE IN EFFECT FOR THESE
FOGGY AREAS UNTIL 11 AM THURSDAY. AN UPPER LEVEL RIDGE IS WEAKENING
AS A WAVE MOVES INTO IT TONIGHT. THIS MAY BRING A FEW LIGHT RAIN
SHOWERS TO THE CASCADE EAST SLOPES...OTHERWISE THERE WILL JUST BE
SOME MID AND HIGH CLOUDS ASSOCIATED WITH THE DISTURBANCE. HIGH
PRESSURE ALOFT WILL REBUILD OVER THE REGION THURSDAY NIGHT THROUGH
SUNDAY WITH MOSTLY DRY CONDITIONS. HOWEVER THERE WILL REMAIN FOG AND
LOW CLOUDS ACROSS THE SAME AREAS THAT HAVE IT NOW DUE TO A LACK OF
MIXING OF THE LOWER ATMOSPHERE. TEMPERATURES WILL BE NEAR NORMAL IN
FOGGY AREAS AND WELL ABOVE NORMAL IN SUNNY AREAS. 88

&&

.AVIATION...06Z TAFS...IFR OR MVFR CONDITIONS ARE EXPECTED UNTIL 19Z
THURSDAY FOR KALW...KPSC...KYKM...KDLS AND POSSIBLY AT KPDT DUE TO
FOG AND LOW CLOUDS. KRDM AND KBDN SHOULD BE VFR WITH JUST SOME MID
AND HIGH CLOUDS. AFTER 19Z CONDITIONS WILL IMPROVE TEMPORARILY AND
THEN WILL WORSEN AGAIN THURSDAY EVENING. WINDS WILL REMAIN LIGHT AND
VARIABLE AT ALL TAF SITES THROUGH THE NEXT 24 HOURS. 88

&&

.PREV DISC... /ISSUED 351 PM PST WED JAN 28 2015/

SHORT TERM...TONIGHT THROUGH SATURDAY...HIGH PRESSURE WILL REMAIN
IN PLACE OVER THE AREA FOR THE NEXT FEW DAYS. A WEAK DISTURBANCE
WILL SLIDE ALONG THE CASCADES TONIGHT AND MAY GENERATE A FEW LIGHT
RAIN AND SNOW SHOWERS ALONG THE WASHINGTON CASCADE CREST BUT AMOUNTS
WILL BE BARELY MEASURABLE. IN THE LOWER ELEVATIONS, LOW STRATUS AND
FOG CONTINUES OVER THE COLUMBIA BASIN, THE YAKIMA VALLEY AND THE
WASHINGTON PORTION OF THE BLUE MOUNTAIN FOOTHILLS. WHILE SOME AREAS
HAVE SHOWN IMPROVEMENT IN THE FOG THIS AFTERNOON, HAVE EXTENDED THE
DENSE FOG ADVISORY THROUGH TOMORROW MORNING AS I ANTICIPATE THAT THE
FOG WILL RETURN THIS EVENING AND OVERNIGHT. ALSO EXPECT THAT PATCHY
FOG WILL MOVE INTO THE KITTITAS VALLEY, NORTH CENTRAL OREGON AS FAR
SOUTH AS MADRAS AND INTO THE REST OF THE BLUE MOUNTAIN FOOTHILLS.
TOMORROW THROUGH SATURDAY WILL BE A QUIET PERIOD WITH NO SYSTEMS
CROSSING OVER THE RIDGE. ABOVE 2500 TO 3000 FEET IT SHOULD BE PARTLY
CLOUDY WITH CONTINUED ABOVE NORMAL TEMPERATURES IN THE 40S AND LOWER
50S. BELOW THAT ELEVATION, LOW CLOUDS AND PATCHY FOG WILL CONTINUE.
POSSIBLY THE FOG WILL BE DENSE BUT WILL LET LATER SHIFTS EVALUATE
THOSE CONDITIONS. TEMPERATURES UNDER THE STRATUS WILL REACH ABOUT 40
IN THE DAY TIME AND DROP TO AROUND FREEZING AT NIGHT. WINDS WILL
REMAIN LIGHT THROUGH THE PERIOD. PERRY

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN UPPER
LEVEL RIDGE WILL BE ESTABLISHED OVER MUCH OF THE PAC NW FOR SATURDAY
NIGHT INTO SUNDAY. THEREFORE A STRONG INVERSION WILL BE IN PLACE
WITH PATCHY FOG AND FREEZING FOG IN THE FORECAST FOR THE LOWER
BASINS. BY SUNDAY AFTERNOON AND SUNDAY NIGHT MOST GUIDANCE IS IN
AGREEMENT THAT THE UPPER RIDGE WILL BEGIN TO BREAK DOWN AS A
DISTURBANCE MOVES INTO THE REGION FROM THE PACIFIC. CONTINUED WITH
CHANCE POPS FOR LOWER ELEVATION RAIN THROUGH MONDAY MORNING...WITH
CHANCE TO LOW END LIKELY POPS FOR RAIN/SNOW IN THE MOUNTAINS. AT
THIS TIME SNOW LEVELS ARE FORECAST TO VARY BETWEEN 2500 TO 4500 FEET
NORTH-CENTRAL AND 4500 TO 6000 FEET SOUTH DURING THE SUNDAY
NIGHT/MONDAY PERIOD. LEFT LINGERING SLIGHT CHANCE TO LOW END CHANCE
POPS OF LIGHT RAIN IN THE LOWER ELEVATIONS AND RAIN/SNOW IN THE
MOUNTAINS FOR MONDAY NIGHT INTO TUESDAY WITH THE MOIST WESTERLY FLOW
CONTINUES. BY TUESDAY NIGHT INTO WEDNESDAY THERE IS MORE UNCERTAINTY
IN THE FORECAST AS THE 12Z ECMWF TRIES TO BRING ANOTHER MOISTURE
LADEN SYSTEM INTO THE AREA WHILE THE 12Z GFS AMPLIFIES A RIDGE OVER
THE REGION WITH A DRY NORTHWESTERLY FLOW. WENT WITH A GENERAL MODEL
BLEND FOR NOW FOR THIS PERIOD...WHICH GAVE SLIGHT CHANCE OF RAIN FOR
THE LOWER ELEVATIONS AND LOWER END CHANCES OF RAIN/SNOW FOR THE
MOUNTAINS. TEMPERATURES START OF NEAR TO SLIGHTLY BELOW AVERAGE WITH
THE FOG IN THE LOWER BASINS FOR SATURDAY NIGHT AND SUNDAY...BUT THEN
WARM TO ABOVE AVERAGE LEVELS FOR THE MONDAY THROUGH WEDNESDAY PERIOD
WITH THE WARMER WESTERLY FLOW IN PLACE. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  33  40  32  40 /   0  10   0   0
ALW  34  40  34  40 /   0  10   0   0
PSC  33  42  32  41 /   0  10   0   0
YKM  30  38  30  40 /  10  10   0   0
HRI  33  40  33  41 /  10  10   0   0
ELN  32  42  31  40 /  10  10   0   0
RDM  31  48  30  48 /  10  10   0   0
LGD  31  45  29  46 /  10  10   0   0
GCD  33  51  31  49 /  10  10   0   0
DLS  39  47  36  43 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ027-028.

     DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ029.

&&

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

$$

88/77/88










000
FXUS66 KPDT 290311
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
711 PM PST WED JAN 28 2015

.UPDATE...MAIN CONCERN TONIGHT WILL BE WIDESPREAD LOW CLOUDS AND/OR
FOG IN THE LOWER COLUMBIA BASIN AND ADJACENT VALLEYS AND NORTH
CENTRAL OREGON. THE FOG HAS SPREAD INTO THE OREGON BLUE MOUNTAIN
FOOTHILLS DURING THE PAST COUPLE OF HOURS...BUT IT HAS LIFTED SOME
INTO A STRATUS LAYER. DENSE FOG ADVISORIES ARE IN EFFECT FOR THESE
FOGGY AREAS UNTIL 11 AM THURSDAY. AN UPPER LEVEL RIDGE IS WEAKENING
AS A WAVE MOVES INTO IT TONIGHT. THIS MAY BRING A FEW LIGHT RAIN
SHOWERS TO THE CASCADE EAST SLOPES...OTHERWISE THERE WILL JUST BE
SOME MID AND HIGH CLOUDS ASSOCIATED WITH THE DISTURBANCE. HIGH
PRESSURE ALOFT WILL REBUILD OVER THE REGION THURSDAY NIGHT THROUGH
SUNDAY WITH MOSTLY DRY CONDITIONS. HOWEVER THERE WILL REMAIN FOG AND
LOW CLOUDS ACROSS THE SAME AREAS THAT HAVE IT NOW DUE TO A LACK OF
MIXING OF THE LOWER ATMOSPHERE. TEMPERATURES WILL BE NEAR NORMAL IN
FOGGY AREAS AND WELL ABOVE NORMAL IN SUNNY AREAS. 88

&&

.AVIATION...06Z TAFS...IFR OR MVFR CONDITIONS ARE EXPECTED UNTIL 19Z
THURSDAY FOR KALW...KPSC...KYKM...KDLS AND POSSIBLY AT KPDT DUE TO
FOG AND LOW CLOUDS. KRDM AND KBDN SHOULD BE VFR WITH JUST SOME MID
AND HIGH CLOUDS. AFTER 19Z CONDITIONS WILL IMPROVE TEMPORARILY AND
THEN WILL WORSEN AGAIN THURSDAY EVENING. WINDS WILL REMAIN LIGHT AND
VARIABLE AT ALL TAF SITES THROUGH THE NEXT 24 HOURS. 88

&&

.PREV DISC... /ISSUED 351 PM PST WED JAN 28 2015/

SHORT TERM...TONIGHT THROUGH SATURDAY...HIGH PRESSURE WILL REMAIN
IN PLACE OVER THE AREA FOR THE NEXT FEW DAYS. A WEAK DISTURBANCE
WILL SLIDE ALONG THE CASCADES TONIGHT AND MAY GENERATE A FEW LIGHT
RAIN AND SNOW SHOWERS ALONG THE WASHINGTON CASCADE CREST BUT AMOUNTS
WILL BE BARELY MEASURABLE. IN THE LOWER ELEVATIONS, LOW STRATUS AND
FOG CONTINUES OVER THE COLUMBIA BASIN, THE YAKIMA VALLEY AND THE
WASHINGTON PORTION OF THE BLUE MOUNTAIN FOOTHILLS. WHILE SOME AREAS
HAVE SHOWN IMPROVEMENT IN THE FOG THIS AFTERNOON, HAVE EXTENDED THE
DENSE FOG ADVISORY THROUGH TOMORROW MORNING AS I ANTICIPATE THAT THE
FOG WILL RETURN THIS EVENING AND OVERNIGHT. ALSO EXPECT THAT PATCHY
FOG WILL MOVE INTO THE KITTITAS VALLEY, NORTH CENTRAL OREGON AS FAR
SOUTH AS MADRAS AND INTO THE REST OF THE BLUE MOUNTAIN FOOTHILLS.
TOMORROW THROUGH SATURDAY WILL BE A QUIET PERIOD WITH NO SYSTEMS
CROSSING OVER THE RIDGE. ABOVE 2500 TO 3000 FEET IT SHOULD BE PARTLY
CLOUDY WITH CONTINUED ABOVE NORMAL TEMPERATURES IN THE 40S AND LOWER
50S. BELOW THAT ELEVATION, LOW CLOUDS AND PATCHY FOG WILL CONTINUE.
POSSIBLY THE FOG WILL BE DENSE BUT WILL LET LATER SHIFTS EVALUATE
THOSE CONDITIONS. TEMPERATURES UNDER THE STRATUS WILL REACH ABOUT 40
IN THE DAY TIME AND DROP TO AROUND FREEZING AT NIGHT. WINDS WILL
REMAIN LIGHT THROUGH THE PERIOD. PERRY

LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN UPPER
LEVEL RIDGE WILL BE ESTABLISHED OVER MUCH OF THE PAC NW FOR SATURDAY
NIGHT INTO SUNDAY. THEREFORE A STRONG INVERSION WILL BE IN PLACE
WITH PATCHY FOG AND FREEZING FOG IN THE FORECAST FOR THE LOWER
BASINS. BY SUNDAY AFTERNOON AND SUNDAY NIGHT MOST GUIDANCE IS IN
AGREEMENT THAT THE UPPER RIDGE WILL BEGIN TO BREAK DOWN AS A
DISTURBANCE MOVES INTO THE REGION FROM THE PACIFIC. CONTINUED WITH
CHANCE POPS FOR LOWER ELEVATION RAIN THROUGH MONDAY MORNING...WITH
CHANCE TO LOW END LIKELY POPS FOR RAIN/SNOW IN THE MOUNTAINS. AT
THIS TIME SNOW LEVELS ARE FORECAST TO VARY BETWEEN 2500 TO 4500 FEET
NORTH-CENTRAL AND 4500 TO 6000 FEET SOUTH DURING THE SUNDAY
NIGHT/MONDAY PERIOD. LEFT LINGERING SLIGHT CHANCE TO LOW END CHANCE
POPS OF LIGHT RAIN IN THE LOWER ELEVATIONS AND RAIN/SNOW IN THE
MOUNTAINS FOR MONDAY NIGHT INTO TUESDAY WITH THE MOIST WESTERLY FLOW
CONTINUES. BY TUESDAY NIGHT INTO WEDNESDAY THERE IS MORE UNCERTAINTY
IN THE FORECAST AS THE 12Z ECMWF TRIES TO BRING ANOTHER MOISTURE
LADEN SYSTEM INTO THE AREA WHILE THE 12Z GFS AMPLIFIES A RIDGE OVER
THE REGION WITH A DRY NORTHWESTERLY FLOW. WENT WITH A GENERAL MODEL
BLEND FOR NOW FOR THIS PERIOD...WHICH GAVE SLIGHT CHANCE OF RAIN FOR
THE LOWER ELEVATIONS AND LOWER END CHANCES OF RAIN/SNOW FOR THE
MOUNTAINS. TEMPERATURES START OF NEAR TO SLIGHTLY BELOW AVERAGE WITH
THE FOG IN THE LOWER BASINS FOR SATURDAY NIGHT AND SUNDAY...BUT THEN
WARM TO ABOVE AVERAGE LEVELS FOR THE MONDAY THROUGH WEDNESDAY PERIOD
WITH THE WARMER WESTERLY FLOW IN PLACE. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  33  40  32  40 /   0  10   0   0
ALW  34  40  34  40 /   0  10   0   0
PSC  33  42  32  41 /   0  10   0   0
YKM  30  38  30  40 /  10  10   0   0
HRI  33  40  33  41 /  10  10   0   0
ELN  32  42  31  40 /  10  10   0   0
RDM  31  48  30  48 /  10  10   0   0
LGD  31  45  29  46 /  10  10   0   0
GCD  33  51  31  49 /  10  10   0   0
DLS  39  47  36  43 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ027-028.

     DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ029.

&&

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

$$

88/77/88









000
FXUS66 KPDT 282352 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
351 PM PST WED JAN 28 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH SATURDAY...HIGH PRESSURE WILL REMAIN
IN PLACE OVER THE AREA FOR THE NEXT FEW DAYS. A WEAK DISTURBANCE
WILL SLIDE ALONG THE CASCADES TONIGHT AND MAY GENERATE A FEW LIGHT
RAIN AND SNOW SHOWERS ALONG THE WASHINGTON CASCADE CREST BUT AMOUNTS
WILL BE BARELY MEASURABLE. IN THE LOWER ELEVATIONS, LOW STRATUS AND
FOG CONTINUES OVER THE COLUMBIA BASIN, THE YAKIMA VALLEY AND THE
WASHINGTON PORTION OF THE BLUE MOUNTAIN FOOTHILLS. WHILE SOME AREAS
HAVE SHOWN IMPROVEMENT IN THE FOG THIS AFTERNOON, HAVE EXTENDED THE
DENSE FOG ADVISORY THROUGH TOMORROW MORNING AS I ANTICIPATE THAT THE
FOG WILL RETURN THIS EVENING AND OVERNIGHT. ALSO EXPECT THAT PATCHY
FOG WILL MOVE INTO THE KITTITAS VALLEY, NORTH CENTRAL OREGON AS FAR
SOUTH AS MADRAS AND INTO THE REST OF THE BLUE MOUNTAIN FOOTHILLS.
TOMORROW THROUGH SATURDAY WILL BE A QUIET PERIOD WITH NO SYSTEMS
CROSSING OVER THE RIDGE. ABOVE 2500 TO 3000 FEET IT SHOULD BE PARTLY
CLOUDY WITH CONTINUED ABOVE NORMAL TEMPERATURES IN THE 40S AND LOWER
50S. BELOW THAT ELEVATION, LOW CLOUDS AND PATCHY FOG WILL CONTINUE.
POSSIBLY THE FOG WILL BE DENSE BUT WILL LET LATER SHIFTS EVALUATE
THOSE CONDITIONS. TEMPERATURES UNDER THE STRATUS WILL REACH ABOUT 40
IN THE DAY TIME AND DROP TO AROUND FREEZING AT NIGHT. WINDS WILL
REMAIN LIGHT THROUGH THE PERIOD. PERRY

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN UPPER
LEVEL RIDGE WILL BE ESTABLISHED OVER MUCH OF THE PAC NW FOR SATURDAY
NIGHT INTO SUNDAY. THEREFORE A STRONG INVERSION WILL BE IN PLACE
WITH PATCHY FOG AND FREEZING FOG IN THE FORECAST FOR THE LOWER
BASINS. BY SUNDAY AFTERNOON AND SUNDAY NIGHT MOST GUIDANCE IS IN
AGREEMENT THAT THE UPPER RIDGE WILL BEGIN TO BREAK DOWN AS A
DISTURBANCE MOVES INTO THE REGION FROM THE PACIFIC. CONTINUED WITH
CHANCE POPS FOR LOWER ELEVATION RAIN THROUGH MONDAY MORNING...WITH
CHANCE TO LOW END LIKELY POPS FOR RAIN/SNOW IN THE MOUNTAINS. AT
THIS TIME SNOW LEVELS ARE FORECAST TO VARY BETWEEN 2500 TO 4500 FEET
NORTH-CENTRAL AND 4500 TO 6000 FEET SOUTH DURING THE SUNDAY
NIGHT/MONDAY PERIOD. LEFT LINGERING SLIGHT CHANCE TO LOW END CHANCE
POPS OF LIGHT RAIN IN THE LOWER ELEVATIONS AND RAIN/SNOW IN THE
MOUNTAINS FOR MONDAY NIGHT INTO TUESDAY WITH THE MOIST WESTERLY FLOW
CONTINUES. BY TUESDAY NIGHT INTO WEDNESDAY THERE IS MORE UNCERTAINTY
IN THE FORECAST AS THE 12Z ECMWF TRIES TO BRING ANOTHER MOISTURE
LADEN SYSTEM INTO THE AREA WHILE THE 12Z GFS AMPLIFIES A RIDGE OVER
THE REGION WITH A DRY NORTHWESTERLY FLOW. WENT WITH A GENERAL MODEL
BLEND FOR NOW FOR THIS PERIOD...WHICH GAVE SLIGHT CHANCE OF RAIN FOR
THE LOWER ELEVATIONS AND LOWER END CHANCES OF RAIN/SNOW FOR THE
MOUNTAINS. TEMPERATURES START OF NEAR TO SLIGHTLY BELOW AVERAGE WITH
THE FOG IN THE LOWER BASINS FOR SATURDAY NIGHT AND SUNDAY...BUT THEN
WARM TO ABOVE AVERAGE LEVELS FOR THE MONDAY THROUGH WEDNESDAY PERIOD
WITH THE WARMER WESTERLY FLOW IN PLACE. 77

&&

.AVIATION..00Z TAFS...MVFR/IFR CONDITIONS FROM FOG/STRATUS ARE
CURRENTLY AFFECTING THE KYKM...KPSC..AND KDLS TERMINALS WITH LIFR
CIGS/VIS AT KALW. EXPECT THE FOG/STRATUS TO REMAIN IN PLACE FOR
THESE LOCATIONS THROUGH MUCH OF THE OVERNIGHT BEFORE SOME GRADUAL
IMPROVEMENT IS POSSIBLE AFTER 18Z THURSDAY. FOG IS EDGING CLOSER AND
CLOSER TO THE KPDT TERMINAL AND AFTER STRUGGLING ALL AFTERNOON IS
EXPECTED TO MOVE OVER THE TERMINAL BY 01Z...WITH LIFR CONDITIONS
POSSIBLE AT TIMES. EXPECT VFR CONDITIONS AT KBDN AND KRDM THROUGH
THE EVENING HOURS...WITH JUST MVFR BR AT KRDM AFTER 29/10Z. WINDS
WILL REMAIN LIGHT...AOB 10KTS AT MOST SITES OVER THE NEXT 24 HOURS.
MURPHY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  33  40  32  40 /   0  10   0   0
ALW  34  40  34  40 /   0  10   0   0
PSC  33  42  32  41 /   0  10   0   0
YKM  30  38  30  40 /  10  10   0   0
HRI  33  40  33  41 /  10  10   0   0
ELN  32  42  31  40 /  10  10   0   0
RDM  31  48  30  48 /  10  10   0   0
LGD  31  45  29  46 /  10  10   0   0
GCD  33  51  31  49 /  10  10   0   0
DLS  39  47  36  43 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ027-028.

     DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ029.

&&

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

$$

83/77/77








000
FXUS66 KPDT 282352 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
351 PM PST WED JAN 28 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH SATURDAY...HIGH PRESSURE WILL REMAIN
IN PLACE OVER THE AREA FOR THE NEXT FEW DAYS. A WEAK DISTURBANCE
WILL SLIDE ALONG THE CASCADES TONIGHT AND MAY GENERATE A FEW LIGHT
RAIN AND SNOW SHOWERS ALONG THE WASHINGTON CASCADE CREST BUT AMOUNTS
WILL BE BARELY MEASURABLE. IN THE LOWER ELEVATIONS, LOW STRATUS AND
FOG CONTINUES OVER THE COLUMBIA BASIN, THE YAKIMA VALLEY AND THE
WASHINGTON PORTION OF THE BLUE MOUNTAIN FOOTHILLS. WHILE SOME AREAS
HAVE SHOWN IMPROVEMENT IN THE FOG THIS AFTERNOON, HAVE EXTENDED THE
DENSE FOG ADVISORY THROUGH TOMORROW MORNING AS I ANTICIPATE THAT THE
FOG WILL RETURN THIS EVENING AND OVERNIGHT. ALSO EXPECT THAT PATCHY
FOG WILL MOVE INTO THE KITTITAS VALLEY, NORTH CENTRAL OREGON AS FAR
SOUTH AS MADRAS AND INTO THE REST OF THE BLUE MOUNTAIN FOOTHILLS.
TOMORROW THROUGH SATURDAY WILL BE A QUIET PERIOD WITH NO SYSTEMS
CROSSING OVER THE RIDGE. ABOVE 2500 TO 3000 FEET IT SHOULD BE PARTLY
CLOUDY WITH CONTINUED ABOVE NORMAL TEMPERATURES IN THE 40S AND LOWER
50S. BELOW THAT ELEVATION, LOW CLOUDS AND PATCHY FOG WILL CONTINUE.
POSSIBLY THE FOG WILL BE DENSE BUT WILL LET LATER SHIFTS EVALUATE
THOSE CONDITIONS. TEMPERATURES UNDER THE STRATUS WILL REACH ABOUT 40
IN THE DAY TIME AND DROP TO AROUND FREEZING AT NIGHT. WINDS WILL
REMAIN LIGHT THROUGH THE PERIOD. PERRY

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN UPPER
LEVEL RIDGE WILL BE ESTABLISHED OVER MUCH OF THE PAC NW FOR SATURDAY
NIGHT INTO SUNDAY. THEREFORE A STRONG INVERSION WILL BE IN PLACE
WITH PATCHY FOG AND FREEZING FOG IN THE FORECAST FOR THE LOWER
BASINS. BY SUNDAY AFTERNOON AND SUNDAY NIGHT MOST GUIDANCE IS IN
AGREEMENT THAT THE UPPER RIDGE WILL BEGIN TO BREAK DOWN AS A
DISTURBANCE MOVES INTO THE REGION FROM THE PACIFIC. CONTINUED WITH
CHANCE POPS FOR LOWER ELEVATION RAIN THROUGH MONDAY MORNING...WITH
CHANCE TO LOW END LIKELY POPS FOR RAIN/SNOW IN THE MOUNTAINS. AT
THIS TIME SNOW LEVELS ARE FORECAST TO VARY BETWEEN 2500 TO 4500 FEET
NORTH-CENTRAL AND 4500 TO 6000 FEET SOUTH DURING THE SUNDAY
NIGHT/MONDAY PERIOD. LEFT LINGERING SLIGHT CHANCE TO LOW END CHANCE
POPS OF LIGHT RAIN IN THE LOWER ELEVATIONS AND RAIN/SNOW IN THE
MOUNTAINS FOR MONDAY NIGHT INTO TUESDAY WITH THE MOIST WESTERLY FLOW
CONTINUES. BY TUESDAY NIGHT INTO WEDNESDAY THERE IS MORE UNCERTAINTY
IN THE FORECAST AS THE 12Z ECMWF TRIES TO BRING ANOTHER MOISTURE
LADEN SYSTEM INTO THE AREA WHILE THE 12Z GFS AMPLIFIES A RIDGE OVER
THE REGION WITH A DRY NORTHWESTERLY FLOW. WENT WITH A GENERAL MODEL
BLEND FOR NOW FOR THIS PERIOD...WHICH GAVE SLIGHT CHANCE OF RAIN FOR
THE LOWER ELEVATIONS AND LOWER END CHANCES OF RAIN/SNOW FOR THE
MOUNTAINS. TEMPERATURES START OF NEAR TO SLIGHTLY BELOW AVERAGE WITH
THE FOG IN THE LOWER BASINS FOR SATURDAY NIGHT AND SUNDAY...BUT THEN
WARM TO ABOVE AVERAGE LEVELS FOR THE MONDAY THROUGH WEDNESDAY PERIOD
WITH THE WARMER WESTERLY FLOW IN PLACE. 77

&&

.AVIATION..00Z TAFS...MVFR/IFR CONDITIONS FROM FOG/STRATUS ARE
CURRENTLY AFFECTING THE KYKM...KPSC..AND KDLS TERMINALS WITH LIFR
CIGS/VIS AT KALW. EXPECT THE FOG/STRATUS TO REMAIN IN PLACE FOR
THESE LOCATIONS THROUGH MUCH OF THE OVERNIGHT BEFORE SOME GRADUAL
IMPROVEMENT IS POSSIBLE AFTER 18Z THURSDAY. FOG IS EDGING CLOSER AND
CLOSER TO THE KPDT TERMINAL AND AFTER STRUGGLING ALL AFTERNOON IS
EXPECTED TO MOVE OVER THE TERMINAL BY 01Z...WITH LIFR CONDITIONS
POSSIBLE AT TIMES. EXPECT VFR CONDITIONS AT KBDN AND KRDM THROUGH
THE EVENING HOURS...WITH JUST MVFR BR AT KRDM AFTER 29/10Z. WINDS
WILL REMAIN LIGHT...AOB 10KTS AT MOST SITES OVER THE NEXT 24 HOURS.
MURPHY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  33  40  32  40 /   0  10   0   0
ALW  34  40  34  40 /   0  10   0   0
PSC  33  42  32  41 /   0  10   0   0
YKM  30  38  30  40 /  10  10   0   0
HRI  33  40  33  41 /  10  10   0   0
ELN  32  42  31  40 /  10  10   0   0
RDM  31  48  30  48 /  10  10   0   0
LGD  31  45  29  46 /  10  10   0   0
GCD  33  51  31  49 /  10  10   0   0
DLS  39  47  36  43 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ027-028.

     DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ029.

&&

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

$$

83/77/77







000
FXUS66 KPDT 282232
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
230 PM PST WED JAN 28 2015

.SHORT TERM...TONIGHT THROUGH SATURDAY...HIGH PRESSURE WILL REMAIN
IN PLACE OVER THE AREA FOR THE NEXT FEW DAYS. A WEAK DISTURBANCE
WILL SLIDE ALONG THE CASCADES TONIGHT AND MAY GENERATE A FEW LIGHT
RAIN AND SNOW SHOWERS ALONG THE WASHINGTON CASCADE CREST BUT AMOUNTS
WILL BE BARELY MEASURABLE. IN THE LOWER ELEVATIONS, LOW STRATUS AND
FOG CONTINUES OVER THE COLUMBIA BASIN, THE YAKIMA VALLEY AND THE
WASHINGTON PORTION OF THE BLUE MOUNTAIN FOOTHILLS. WHILE SOME AREAS
HAVE SHOWN IMPROVEMENT IN THE FOG THIS AFTERNOON, HAVE EXTENDED THE
DENSE FOG ADVISORY THROUGH TOMORROW MORNING AS I ANTICIPATE THAT THE
FOG WILL RETURN THIS EVENING AND OVERNIGHT. ALSO EXPECT THAT PATCHY
FOG WILL MOVE INTO THE KITTITAS VALLEY, NORTH CENTRAL OREGON AS FAR
SOUTH AS MADRAS AND INTO THE REST OF THE BLUE MOUNTAIN FOOTHILLS.
TOMORROW THROUGH SATURDAY WILL BE A QUIET PERIOD WITH NO SYSTEMS
CROSSING OVER THE RIDGE. ABOVE 2500 TO 3000 FEET IT SHOULD BE PARTLY
CLOUDY WITH CONTINUED ABOVE NORMAL TEMPERATURES IN THE 40S AND LOWER
50S. BELOW THAT ELEVATION, LOW CLOUDS AND PATCHY FOG WILL CONTINUE.
POSSIBLY THE FOG WILL BE DENSE BUT WILL LET LATER SHIFTS EVALUATE
THOSE CONDITIONS. TEMPERATURES UNDER THE STRATUS WILL REACH ABOUT 40
IN THE DAY TIME AND DROP TO AROUND FREEZING AT NIGHT. WINDS WILL
REMAIN LIGHT THROUGH THE PERIOD. PERRY

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN UPPER
LEVEL RIDGE WILL BE ESTABLISHED OVER MUCH OF THE PAC NW FOR SATURDAY
NIGHT INTO SUNDAY. THEREFORE A STRONG INVERSION WILL BE IN PLACE
WITH PATCHY FOG AND FREEZING FOG IN THE FORECAST FOR THE LOWER
BASINS. BY SUNDAY AFTERNOON AND SUNDAY NIGHT MOST GUIDANCE IS IN
AGREEMENT THAT THE UPPER RIDGE WILL BEGIN TO BREAK DOWN AS A
DISTURBANCE MOVES INTO THE REGION FROM THE PACIFIC. CONTINUED WITH
CHANCE POPS FOR LOWER ELEVATION RAIN THROUGH MONDAY MORNING...WITH
CHANCE TO LOW END LIKELY POPS FOR RAIN/SNOW IN THE MOUNTAINS. AT
THIS TIME SNOW LEVELS ARE FORECAST TO VARY BETWEEN 2500 TO 4500 FEET
NORTH-CENTRAL AND 4500 TO 6000 FEET SOUTH DURING THE SUNDAY
NIGHT/MONDAY PERIOD. LEFT LINGERING SLIGHT CHANCE TO LOW END CHANCE
POPS OF LIGHT RAIN IN THE LOWER ELEVATIONS AND RAIN/SNOW IN THE
MOUNTAINS FOR MONDAY NIGHT INTO TUESDAY WITH THE MOIST WESTERLY FLOW
CONTINUES. BY TUESDAY NIGHT INTO WEDNESDAY THERE IS MORE UNCERTAINTY
IN THE FORECAST AS THE 12Z ECMWF TRIES TO BRING ANOTHER MOISTURE
LADEN SYSTEM INTO THE AREA WHILE THE 12Z GFS AMPLIFIES A RIDGE OVER
THE REGION WITH A DRY NORTHWESTERLY FLOW. WENT WITH A GENERAL MODEL
BLEND FOR NOW FOR THIS PERIOD...WHICH GAVE SLIGHT CHANCE OF RAIN FOR
THE LOWER ELEVATIONS AND LOWER END CHANCES OF RAIN/SNOW FOR THE
MOUNTAINS. TEMPERATURES START OF NEAR TO SLIGHTLY BELOW AVERAGE WITH
THE FOG IN THE LOWER BASINS FOR SATURDAY NIGHT AND SUNDAY...BUT THEN
WARM TO ABOVE AVERAGE LEVELS FOR THE MONDAY THROUGH WEDNESDAY PERIOD
WITH THE WARMER WESTERLY FLOW IN PLACE. 77

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...LIFR/IFR CONDITIONS
FROM FOG/STRATUS ARE CURRENTLY AFFECTING THE KYKM...KPSC..AND KALW
TERMINALS WITH MVFR CIGS AT KDLS. EXPECT THE FOG/STRATUS TO REMAIN
IN PLACE FOR THESE LOCATIONS THROUGH AT LEAST THIS AFTERNOON BEFORE
SOME GRADUAL IMPROVEMENT IS POSSIBLE AFTER 22Z. GUIDANCE IS NOT
HANDLING THE CURRENT FOG AND LOW STRATUS VERY WELL...BUT VISIBLE
SATELLITE SHOWS WIDESPREAD FOG IN THE COLUMBIA BASIN AND THE
WASHINGTON BLUE MOUNTAIN FOOTHILLS BELOW ABOUT 1200 FEET IN
ELEVATION. IF THE WEST-NORTH-WEST WINDS ARE PERSISTENT ENOUGH LATER
TODAY WE MAY HAVE TO WATCH FOR FOG BUILDING INTO KPDT TERMINAL AFTER
21Z...HOWEVER AT THIS TIME I DID NOT HAVE ENOUGH CONFIDENCE TO
INCLUDE IN THE FORECAST. EXPECT VFR CONDITIONS AT KBDN AND KRDM
THROUGH THE TAF PERIOD...WITH JUST SOME VFR BR AT KRDM AFTER 29/09Z.
WINDS WILL REMAIN LIGHT...AOB 10KTS AT ALL SITES OVER THE NEXT 24
HOURS. MURPHY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  33  40  32  40 /   0  10   0   0
ALW  34  40  34  40 /   0  10   0   0
PSC  33  42  32  41 /   0  10   0   0
YKM  30  38  30  40 /  10  10   0   0
HRI  33  40  33  41 /  10  10   0   0
ELN  32  42  31  40 /  10  10   0   0
RDM  31  48  30  48 /  10  10   0   0
LGD  31  45  29  46 /  10  10   0   0
GCD  33  51  31  49 /  10  10   0   0
DLS  39  47  36  43 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ027-028.

     DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ029.

&&

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

$$

83/77/77









000
FXUS66 KPDT 282232
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
230 PM PST WED JAN 28 2015

.SHORT TERM...TONIGHT THROUGH SATURDAY...HIGH PRESSURE WILL REMAIN
IN PLACE OVER THE AREA FOR THE NEXT FEW DAYS. A WEAK DISTURBANCE
WILL SLIDE ALONG THE CASCADES TONIGHT AND MAY GENERATE A FEW LIGHT
RAIN AND SNOW SHOWERS ALONG THE WASHINGTON CASCADE CREST BUT AMOUNTS
WILL BE BARELY MEASURABLE. IN THE LOWER ELEVATIONS, LOW STRATUS AND
FOG CONTINUES OVER THE COLUMBIA BASIN, THE YAKIMA VALLEY AND THE
WASHINGTON PORTION OF THE BLUE MOUNTAIN FOOTHILLS. WHILE SOME AREAS
HAVE SHOWN IMPROVEMENT IN THE FOG THIS AFTERNOON, HAVE EXTENDED THE
DENSE FOG ADVISORY THROUGH TOMORROW MORNING AS I ANTICIPATE THAT THE
FOG WILL RETURN THIS EVENING AND OVERNIGHT. ALSO EXPECT THAT PATCHY
FOG WILL MOVE INTO THE KITTITAS VALLEY, NORTH CENTRAL OREGON AS FAR
SOUTH AS MADRAS AND INTO THE REST OF THE BLUE MOUNTAIN FOOTHILLS.
TOMORROW THROUGH SATURDAY WILL BE A QUIET PERIOD WITH NO SYSTEMS
CROSSING OVER THE RIDGE. ABOVE 2500 TO 3000 FEET IT SHOULD BE PARTLY
CLOUDY WITH CONTINUED ABOVE NORMAL TEMPERATURES IN THE 40S AND LOWER
50S. BELOW THAT ELEVATION, LOW CLOUDS AND PATCHY FOG WILL CONTINUE.
POSSIBLY THE FOG WILL BE DENSE BUT WILL LET LATER SHIFTS EVALUATE
THOSE CONDITIONS. TEMPERATURES UNDER THE STRATUS WILL REACH ABOUT 40
IN THE DAY TIME AND DROP TO AROUND FREEZING AT NIGHT. WINDS WILL
REMAIN LIGHT THROUGH THE PERIOD. PERRY

.LONG TERM...SATURDAY NIGHT THROUGH WEDNESDAY NIGHT...AN UPPER
LEVEL RIDGE WILL BE ESTABLISHED OVER MUCH OF THE PAC NW FOR SATURDAY
NIGHT INTO SUNDAY. THEREFORE A STRONG INVERSION WILL BE IN PLACE
WITH PATCHY FOG AND FREEZING FOG IN THE FORECAST FOR THE LOWER
BASINS. BY SUNDAY AFTERNOON AND SUNDAY NIGHT MOST GUIDANCE IS IN
AGREEMENT THAT THE UPPER RIDGE WILL BEGIN TO BREAK DOWN AS A
DISTURBANCE MOVES INTO THE REGION FROM THE PACIFIC. CONTINUED WITH
CHANCE POPS FOR LOWER ELEVATION RAIN THROUGH MONDAY MORNING...WITH
CHANCE TO LOW END LIKELY POPS FOR RAIN/SNOW IN THE MOUNTAINS. AT
THIS TIME SNOW LEVELS ARE FORECAST TO VARY BETWEEN 2500 TO 4500 FEET
NORTH-CENTRAL AND 4500 TO 6000 FEET SOUTH DURING THE SUNDAY
NIGHT/MONDAY PERIOD. LEFT LINGERING SLIGHT CHANCE TO LOW END CHANCE
POPS OF LIGHT RAIN IN THE LOWER ELEVATIONS AND RAIN/SNOW IN THE
MOUNTAINS FOR MONDAY NIGHT INTO TUESDAY WITH THE MOIST WESTERLY FLOW
CONTINUES. BY TUESDAY NIGHT INTO WEDNESDAY THERE IS MORE UNCERTAINTY
IN THE FORECAST AS THE 12Z ECMWF TRIES TO BRING ANOTHER MOISTURE
LADEN SYSTEM INTO THE AREA WHILE THE 12Z GFS AMPLIFIES A RIDGE OVER
THE REGION WITH A DRY NORTHWESTERLY FLOW. WENT WITH A GENERAL MODEL
BLEND FOR NOW FOR THIS PERIOD...WHICH GAVE SLIGHT CHANCE OF RAIN FOR
THE LOWER ELEVATIONS AND LOWER END CHANCES OF RAIN/SNOW FOR THE
MOUNTAINS. TEMPERATURES START OF NEAR TO SLIGHTLY BELOW AVERAGE WITH
THE FOG IN THE LOWER BASINS FOR SATURDAY NIGHT AND SUNDAY...BUT THEN
WARM TO ABOVE AVERAGE LEVELS FOR THE MONDAY THROUGH WEDNESDAY PERIOD
WITH THE WARMER WESTERLY FLOW IN PLACE. 77

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...LIFR/IFR CONDITIONS
FROM FOG/STRATUS ARE CURRENTLY AFFECTING THE KYKM...KPSC..AND KALW
TERMINALS WITH MVFR CIGS AT KDLS. EXPECT THE FOG/STRATUS TO REMAIN
IN PLACE FOR THESE LOCATIONS THROUGH AT LEAST THIS AFTERNOON BEFORE
SOME GRADUAL IMPROVEMENT IS POSSIBLE AFTER 22Z. GUIDANCE IS NOT
HANDLING THE CURRENT FOG AND LOW STRATUS VERY WELL...BUT VISIBLE
SATELLITE SHOWS WIDESPREAD FOG IN THE COLUMBIA BASIN AND THE
WASHINGTON BLUE MOUNTAIN FOOTHILLS BELOW ABOUT 1200 FEET IN
ELEVATION. IF THE WEST-NORTH-WEST WINDS ARE PERSISTENT ENOUGH LATER
TODAY WE MAY HAVE TO WATCH FOR FOG BUILDING INTO KPDT TERMINAL AFTER
21Z...HOWEVER AT THIS TIME I DID NOT HAVE ENOUGH CONFIDENCE TO
INCLUDE IN THE FORECAST. EXPECT VFR CONDITIONS AT KBDN AND KRDM
THROUGH THE TAF PERIOD...WITH JUST SOME VFR BR AT KRDM AFTER 29/09Z.
WINDS WILL REMAIN LIGHT...AOB 10KTS AT ALL SITES OVER THE NEXT 24
HOURS. MURPHY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  33  40  32  40 /   0  10   0   0
ALW  34  40  34  40 /   0  10   0   0
PSC  33  42  32  41 /   0  10   0   0
YKM  30  38  30  40 /  10  10   0   0
HRI  33  40  33  41 /  10  10   0   0
ELN  32  42  31  40 /  10  10   0   0
RDM  31  48  30  48 /  10  10   0   0
LGD  31  45  29  46 /  10  10   0   0
GCD  33  51  31  49 /  10  10   0   0
DLS  39  47  36  43 /  10  10   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ027-028.

     DENSE FOG ADVISORY UNTIL 11 AM PST THURSDAY WAZ029.

&&

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

$$

83/77/77










000
FXUS66 KPDT 281755 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
955 AM PST WED JAN 28 2015

UPDATED AVIATION DISCUSSION

.UPDATE...A WEAK SYSTEM IS MOVING OUT OF THE AREA THIS MORNING.
OBSERVATIONS ARE NOT SHOWING ANY PRECIPITATION SO HAVE REMOVED ALL
MENTION TODAY OF A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS EXCEPT
ALONG PORTIONS OF THE CASCADE CREST. IN THE LOWER ELEVATIONS, THE
MAIN CONCERN IS THE LOW CLOUDS AND DENSE FOG THAT DEVELOPED IN THE
OREGON AND WASHINGTON COLUMBIA BASIN ZONES AND IN THE KITTITAS
VALLEY OVERNIGHT. NUMEROUS LOCATIONS HAVE VISIBILITIES DOWN TO A
QUARTER MILE OR LESS, SO THE DENSE FOG ADVISORY LOOKS GOOD FOR NOW.
IN THE LAST HOUR OR SO, SOUTHWEST WINDS HAVE CARRIED THE FOG FROM
HERMISTON INTO WALLA WALLA. HAVE ISSUED A NOWCAST FOR THE WALLA
WALLA AREA DUE TO THE DENSE FOG. IF I END UP EXTENDING THE DENSE FOG
ADVISORY PAST 11 AM PST, MAY ADD THE WASHINGTON BLUE MOUNTAIN
FOOTHILLS TO THE ADVISORY. FOR NOW HAVE ADJUSTED THE FORECAST AS IF
FOG WILL IMPROVE THIS AFTERNOON. HAVE LOWERED TEMPERATURES AROUND
WALLA WALLA FOR TODAY. EXPECT THAT THE FOG AND LOW STRATUS WILL
STRENGTHEN AND INCREASE IN COVERAGE TONIGHT TO INCLUDE ALL OF THE
BLUE MOUNTAIN FOOTHILLS, NORTH CENTRAL OREGON DOWN TO MADRAS AND
INTO THE KITTIAS VALLEY. HAVE ALSO MADE SOME MINOR WIND DIRECTION
ADJUSTMENTS THROUGH TONIGHT. FORECAST UPDATE ALREADY OUT. PERRY

&&

.AVIATION...18Z TAFS...LIFR/IFR CONDITIONS FROM FOG/STRATUS ARE
CURRENTLY AFFECTING THE KYKM...KPSC..AND KALW TERMINALS WITH MVFR
CIGS AT KDLS. EXPECT THE FOG/STRATUS TO REMAIN IN PLACE FOR THESE
LOCATIONS THROUGH AT LEAST THIS AFTERNOON BEFORE SOME GRADUAL
IMPROVEMENT IS POSSIBLE AFTER 22Z. GUIDANCE IS NOT HANDLING THE
CURRENT FOG AND LOW STRATUS VERY WELL...BUT VISIBLE SATELLITE SHOWS
WIDESPREAD FOG IN THE COLUMBIA BASIN AND THE WASHINGTON BLUE
MOUNTAIN FOOTHILLS BELOW ABOUT 1200 FEET IN ELEVATION. IF THE
WEST-NORTH-WEST WINDS ARE PERSISTENT ENOUGH LATER TODAY WE MAY HAVE
TO WATCH FOR FOG BUILDING INTO KPDT TERMINAL AFTER 21Z...HOWEVER AT
THIS TIME I DID NOT HAVE ENOUGH CONFIDENCE TO INCLUDE IN THE
FORECAST. EXPECT VFR CONDITIONS AT KBDN AND KRDM THROUGH THE TAF
PERIOD...WITH JUST SOME VFR BR AT KRDM AFTER 29/09Z. WINDS WILL
REMAIN LIGHT...AOB 10KTS AT ALL SITES OVER THE NEXT 24 HOURS. MURPHY



&&

.PREV DISC... /ISSUED 300 AM PST WED JAN 28 2015/

SHORT TERM...TODAY THROUGH FRIDAY...A WEAK SYSTEM CONTINUES TO
DRIFT ACROSS THE REGION EARLY THIS MORNING. THIS SYSTEM WILL CAUSE A
FEW SHOWERS NEAR THE CASCADE CREST TODAY, WITH A FEW SHOWERS IN
WALLOWA COUNTY THIS MORNING. ALSO A FEW SPRINKLES OF FLURRIES WILL
BE POSSIBLE OVER THE BLUES THIS MORNING. THIS SYSTEM HAS MIXED OUT
THE LOW LEVEL INVERSIONS ACROSS MOST OF OUR OREGON ZONES. THE
INVERSIONS IN OVER SOME OF OUR WASHINGTON ZONES PERSIST WITH SOME
AREAS OF DENSE FOG HAVING FORMED EARLY THIS MORNING. ALSO AREAS OF
DENSE FOG HAVE REDEVELOPED IN THE LOWER BASIN IN OREGON. THUS WILL
ISSUE DENSE FOG ADVISORIES FOR THE LOWER BASIN IN OREGON AND
WASHINGTON, AND THE YAKIMA VALLEY IN WASHINGTON FOR MUCH OF THIS
MORNING. ANOTHER WEAK SYSTEM IS EXPECTED TO BRING A FEW SHOWERS TO
SOUTH-CENTRAL WASHINGTON TONIGHT INTO THURSDAY MORNING. OTHERWISE
EXPECT DRY CONDITIONS DUE TO INCREASING UPPER LEVEL HIGH PRESSURE.
THIS UPPER LEVEL HIGH PRESSURE WILL CAUSE LOW LEVEL INVERSIONS TO
INCREASE ACROSS THE INTERIOR NORTHWEST. THUS WILL CONTINUE TO
INDICATE AN INCREASE IN FOG COVERAGE OVER OUR AREA TONIGHT THROUGH
FRIDAY. HIGH TEMPS WILL CONTINUE TO BE WARMER ABOVE THE INVERSIONS,
THOUGH NOT QUITE AS WARM AS IN RECENT DAYS DUE TO SOME COOLING
ALOFT. HIGH AND LOW TEMPS WITHIN FOGGY AREAS WILL SEE LIMITED
DIURNAL CHANGES, WITH HIGH TEMPS IN THE 30S TO LOW 40S. 90

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...HIGH PRESSURE RIDGE
REMAINS OVER FORECAST AREA BEGINNING FRIDAY NIGHT FOR DRY CONDITIONS
PERSISTING THROUGH SATURDAY NIGHT. SUNDAY A WARM FRONT ASSOCIATED
WITH WARM AIR ADVECTION IN THE MID LEVELS USHERS IN A CHANCE OF RAIN
DURING THE DAY ON SUNDAY. THEN A PACIFIC MID/UPPER LEVEL SHORT WAVE
AND ASSOCIATED DYNAMIC LIFT MOVES INTO THE PACIFIC NORTHWEST SUNDAY
NIGHT FOR RAIN LIKELY, EXCEPT FOR A CHANCE OF RAIN IN BENTON AND
FRANKLIN COUNTIES SUNDAY NIGHT.  MONDAY THE UPPER LEVEL SHORT WAVE
MOVES ACROSS FORECAST AREA FOR A CHANCE OF BASIN/VALLEY RAIN AND A
CHANCE OF SNOW IN THE MOUNTAINS WITH SNOW LEVEL 4500-5500 FEET
THROUGH MONDAY AFTERNOON. MONDAY NIGHT A WEAK DISTURBANCE MOVES
THROUGH SOUTHERN OREGON FOR A CHANCE OF RAIN IN CENTRAL AND NORTH
CENTRAL OREGON, THE BLUE MOUNTAINS AND THE EAST SLOPES OF THE
CASCADES. A MID/UPPER LEVEL RIDGE OF HIGH PRESSURE BUILDS OVER THE
REGION ON TUESDAY.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  33  40  32 /  10  10  10   0
ALW  43  35  43  34 /  10  10  10   0
PSC  41  35  44  34 /   0  10  10   0
YKM  41  33  42  32 /  10  20  20   0
HRI  42  34  44  34 /   0  10  10   0
ELN  49  33  42  32 /  10  20  20   0
RDM  56  29  46  28 /  10  10  10   0
LGD  50  29  47  29 /  10  10  10   0
GCD  52  33  50  32 /  10  10  10   0
DLS  50  39  46  36 /  10  20  10   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING WAZ027-028.

&&

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

$$

83/99/77







000
FXUS66 KPDT 281755 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
955 AM PST WED JAN 28 2015

UPDATED AVIATION DISCUSSION

.UPDATE...A WEAK SYSTEM IS MOVING OUT OF THE AREA THIS MORNING.
OBSERVATIONS ARE NOT SHOWING ANY PRECIPITATION SO HAVE REMOVED ALL
MENTION TODAY OF A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS EXCEPT
ALONG PORTIONS OF THE CASCADE CREST. IN THE LOWER ELEVATIONS, THE
MAIN CONCERN IS THE LOW CLOUDS AND DENSE FOG THAT DEVELOPED IN THE
OREGON AND WASHINGTON COLUMBIA BASIN ZONES AND IN THE KITTITAS
VALLEY OVERNIGHT. NUMEROUS LOCATIONS HAVE VISIBILITIES DOWN TO A
QUARTER MILE OR LESS, SO THE DENSE FOG ADVISORY LOOKS GOOD FOR NOW.
IN THE LAST HOUR OR SO, SOUTHWEST WINDS HAVE CARRIED THE FOG FROM
HERMISTON INTO WALLA WALLA. HAVE ISSUED A NOWCAST FOR THE WALLA
WALLA AREA DUE TO THE DENSE FOG. IF I END UP EXTENDING THE DENSE FOG
ADVISORY PAST 11 AM PST, MAY ADD THE WASHINGTON BLUE MOUNTAIN
FOOTHILLS TO THE ADVISORY. FOR NOW HAVE ADJUSTED THE FORECAST AS IF
FOG WILL IMPROVE THIS AFTERNOON. HAVE LOWERED TEMPERATURES AROUND
WALLA WALLA FOR TODAY. EXPECT THAT THE FOG AND LOW STRATUS WILL
STRENGTHEN AND INCREASE IN COVERAGE TONIGHT TO INCLUDE ALL OF THE
BLUE MOUNTAIN FOOTHILLS, NORTH CENTRAL OREGON DOWN TO MADRAS AND
INTO THE KITTIAS VALLEY. HAVE ALSO MADE SOME MINOR WIND DIRECTION
ADJUSTMENTS THROUGH TONIGHT. FORECAST UPDATE ALREADY OUT. PERRY

&&

.AVIATION...18Z TAFS...LIFR/IFR CONDITIONS FROM FOG/STRATUS ARE
CURRENTLY AFFECTING THE KYKM...KPSC..AND KALW TERMINALS WITH MVFR
CIGS AT KDLS. EXPECT THE FOG/STRATUS TO REMAIN IN PLACE FOR THESE
LOCATIONS THROUGH AT LEAST THIS AFTERNOON BEFORE SOME GRADUAL
IMPROVEMENT IS POSSIBLE AFTER 22Z. GUIDANCE IS NOT HANDLING THE
CURRENT FOG AND LOW STRATUS VERY WELL...BUT VISIBLE SATELLITE SHOWS
WIDESPREAD FOG IN THE COLUMBIA BASIN AND THE WASHINGTON BLUE
MOUNTAIN FOOTHILLS BELOW ABOUT 1200 FEET IN ELEVATION. IF THE
WEST-NORTH-WEST WINDS ARE PERSISTENT ENOUGH LATER TODAY WE MAY HAVE
TO WATCH FOR FOG BUILDING INTO KPDT TERMINAL AFTER 21Z...HOWEVER AT
THIS TIME I DID NOT HAVE ENOUGH CONFIDENCE TO INCLUDE IN THE
FORECAST. EXPECT VFR CONDITIONS AT KBDN AND KRDM THROUGH THE TAF
PERIOD...WITH JUST SOME VFR BR AT KRDM AFTER 29/09Z. WINDS WILL
REMAIN LIGHT...AOB 10KTS AT ALL SITES OVER THE NEXT 24 HOURS. MURPHY



&&

.PREV DISC... /ISSUED 300 AM PST WED JAN 28 2015/

SHORT TERM...TODAY THROUGH FRIDAY...A WEAK SYSTEM CONTINUES TO
DRIFT ACROSS THE REGION EARLY THIS MORNING. THIS SYSTEM WILL CAUSE A
FEW SHOWERS NEAR THE CASCADE CREST TODAY, WITH A FEW SHOWERS IN
WALLOWA COUNTY THIS MORNING. ALSO A FEW SPRINKLES OF FLURRIES WILL
BE POSSIBLE OVER THE BLUES THIS MORNING. THIS SYSTEM HAS MIXED OUT
THE LOW LEVEL INVERSIONS ACROSS MOST OF OUR OREGON ZONES. THE
INVERSIONS IN OVER SOME OF OUR WASHINGTON ZONES PERSIST WITH SOME
AREAS OF DENSE FOG HAVING FORMED EARLY THIS MORNING. ALSO AREAS OF
DENSE FOG HAVE REDEVELOPED IN THE LOWER BASIN IN OREGON. THUS WILL
ISSUE DENSE FOG ADVISORIES FOR THE LOWER BASIN IN OREGON AND
WASHINGTON, AND THE YAKIMA VALLEY IN WASHINGTON FOR MUCH OF THIS
MORNING. ANOTHER WEAK SYSTEM IS EXPECTED TO BRING A FEW SHOWERS TO
SOUTH-CENTRAL WASHINGTON TONIGHT INTO THURSDAY MORNING. OTHERWISE
EXPECT DRY CONDITIONS DUE TO INCREASING UPPER LEVEL HIGH PRESSURE.
THIS UPPER LEVEL HIGH PRESSURE WILL CAUSE LOW LEVEL INVERSIONS TO
INCREASE ACROSS THE INTERIOR NORTHWEST. THUS WILL CONTINUE TO
INDICATE AN INCREASE IN FOG COVERAGE OVER OUR AREA TONIGHT THROUGH
FRIDAY. HIGH TEMPS WILL CONTINUE TO BE WARMER ABOVE THE INVERSIONS,
THOUGH NOT QUITE AS WARM AS IN RECENT DAYS DUE TO SOME COOLING
ALOFT. HIGH AND LOW TEMPS WITHIN FOGGY AREAS WILL SEE LIMITED
DIURNAL CHANGES, WITH HIGH TEMPS IN THE 30S TO LOW 40S. 90

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...HIGH PRESSURE RIDGE
REMAINS OVER FORECAST AREA BEGINNING FRIDAY NIGHT FOR DRY CONDITIONS
PERSISTING THROUGH SATURDAY NIGHT. SUNDAY A WARM FRONT ASSOCIATED
WITH WARM AIR ADVECTION IN THE MID LEVELS USHERS IN A CHANCE OF RAIN
DURING THE DAY ON SUNDAY. THEN A PACIFIC MID/UPPER LEVEL SHORT WAVE
AND ASSOCIATED DYNAMIC LIFT MOVES INTO THE PACIFIC NORTHWEST SUNDAY
NIGHT FOR RAIN LIKELY, EXCEPT FOR A CHANCE OF RAIN IN BENTON AND
FRANKLIN COUNTIES SUNDAY NIGHT.  MONDAY THE UPPER LEVEL SHORT WAVE
MOVES ACROSS FORECAST AREA FOR A CHANCE OF BASIN/VALLEY RAIN AND A
CHANCE OF SNOW IN THE MOUNTAINS WITH SNOW LEVEL 4500-5500 FEET
THROUGH MONDAY AFTERNOON. MONDAY NIGHT A WEAK DISTURBANCE MOVES
THROUGH SOUTHERN OREGON FOR A CHANCE OF RAIN IN CENTRAL AND NORTH
CENTRAL OREGON, THE BLUE MOUNTAINS AND THE EAST SLOPES OF THE
CASCADES. A MID/UPPER LEVEL RIDGE OF HIGH PRESSURE BUILDS OVER THE
REGION ON TUESDAY.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  33  40  32 /  10  10  10   0
ALW  43  35  43  34 /  10  10  10   0
PSC  41  35  44  34 /   0  10  10   0
YKM  41  33  42  32 /  10  20  20   0
HRI  42  34  44  34 /   0  10  10   0
ELN  49  33  42  32 /  10  20  20   0
RDM  56  29  46  28 /  10  10  10   0
LGD  50  29  47  29 /  10  10  10   0
GCD  52  33  50  32 /  10  10  10   0
DLS  50  39  46  36 /  10  20  10   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING WAZ027-028.

&&

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

$$

83/99/77








000
FXUS66 KPDT 281727
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
927 AM PST WED JAN 28 2015

.UPDATE...A WEAK SYSTEM IS MOVING OUT OF THE AREA THIS MORNING.
OBSERVATIONS ARE NOT SHOWING ANY PRECIPITATION SO HAVE REMOVED ALL
MENTION TODAY OF A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS EXCEPT
ALONG PORTIONS OF THE CASCADE CREST. IN THE LOWER ELEVATIONS, THE
MAIN CONCERN IS THE LOW CLOUDS AND DENSE FOG THAT DEVELOPED IN THE
OREGON AND WASHINGTON COLUMBIA BASIN ZONES AND IN THE KITTITAS
VALLEY OVERNIGHT. NUMEROUS LOCATIONS HAVE VISIBILITIES DOWN TO A
QUARTER MILE OR LESS, SO THE DENSE FOG ADVISORY LOOKS GOOD FOR NOW.
IN THE LAST HOUR OR SO, SOUTHWEST WINDS HAVE CARRIED THE FOG FROM
HERMISTON INTO WALLA WALLA. HAVE ISSUED A NOWCAST FOR THE WALLA
WALLA AREA DUE TO THE DENSE FOG. IF I END UP EXTENDING THE DENSE FOG
ADVISORY PAST 11 AM PST, MAY ADD THE WASHINGTON BLUE MOUNTAIN
FOOTHILLS TO THE ADVISORY. FOR NOW HAVE ADJUSTED THE FORECAST AS IF
FOG WILL IMPROVE THIS AFTERNOON. HAVE LOWERED TEMPERATURES AROUND
WALLA WALLA FOR TODAY. EXPECT THAT THE FOG AND LOW STRATUS WILL
STRENGTHEN AND INCREASE IN COVERAGE TONIGHT TO INCLUDE ALL OF THE
BLUE MOUNTAIN FOOTHILLS, NORTH CENTRAL OREGON DOWN TO MADRAS AND
INTO THE KITTIAS VALLEY. HAVE ALSO MADE SOME MINOR WIND DIRECTION
ADJUSTMENTS THROUGH TONIGHT. FORECAST UPDATE ALREADY OUT. PERRY

&&

.PREV DISC... /ISSUED 300 AM PST WED JAN 28 2015/

SHORT TERM...TODAY THROUGH FRIDAY...A WEAK SYSTEM CONTINUES TO
DRIFT ACROSS THE REGION EARLY THIS MORNING. THIS SYSTEM WILL CAUSE A
FEW SHOWERS NEAR THE CASCADE CREST TODAY, WITH A FEW SHOWERS IN
WALLOWA COUNTY THIS MORNING. ALSO A FEW SPRINKLES OF FLURRIES WILL
BE POSSIBLE OVER THE BLUES THIS MORNING. THIS SYSTEM HAS MIXED OUT
THE LOW LEVEL INVERSIONS ACROSS MOST OF OUR OREGON ZONES. THE
INVERSIONS IN OVER SOME OF OUR WASHINGTON ZONES PERSIST WITH SOME
AREAS OF DENSE FOG HAVING FORMED EARLY THIS MORNING. ALSO AREAS OF
DENSE FOG HAVE REDEVELOPED IN THE LOWER BASIN IN OREGON. THUS WILL
ISSUE DENSE FOG ADVISORIES FOR THE LOWER BASIN IN OREGON AND
WASHINGTON, AND THE YAKIMA VALLEY IN WASHINGTON FOR MUCH OF THIS
MORNING. ANOTHER WEAK SYSTEM IS EXPECTED TO BRING A FEW SHOWERS TO
SOUTH-CENTRAL WASHINGTON TONIGHT INTO THURSDAY MORNING. OTHERWISE
EXPECT DRY CONDITIONS DUE TO INCREASING UPPER LEVEL HIGH PRESSURE.
THIS UPPER LEVEL HIGH PRESSURE WILL CAUSE LOW LEVEL INVERSIONS TO
INCREASE ACROSS THE INTERIOR NORTHWEST. THUS WILL CONTINUE TO
INDICATE AN INCREASE IN FOG COVERAGE OVER OUR AREA TONIGHT THROUGH
FRIDAY. HIGH TEMPS WILL CONTINUE TO BE WARMER ABOVE THE INVERSIONS,
THOUGH NOT QUITE AS WARM AS IN RECENT DAYS DUE TO SOME COOLING
ALOFT. HIGH AND LOW TEMPS WITHIN FOGGY AREAS WILL SEE LIMITED
DIURNAL CHANGES, WITH HIGH TEMPS IN THE 30S TO LOW 40S. 90

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...HIGH PRESSURE RIDGE
REMAINS OVER FORECAST AREA BEGINNING FRIDAY NIGHT FOR DRY CONDITIONS
PERSISTING THROUGH SATURDAY NIGHT. SUNDAY A WARM FRONT ASSOCIATED
WITH WARM AIR ADVECTION IN THE MID LEVELS USHERS IN A CHANCE OF RAIN
DURING THE DAY ON SUNDAY. THEN A PACIFIC MID/UPPER LEVEL SHORT WAVE
AND ASSOCIATED DYNAMIC LIFT MOVES INTO THE PACIFIC NORTHWEST SUNDAY
NIGHT FOR RAIN LIKELY, EXCEPT FOR A CHANCE OF RAIN IN BENTON AND
FRANKLIN COUNTIES SUNDAY NIGHT.  MONDAY THE UPPER LEVEL SHORT WAVE
MOVES ACROSS FORECAST AREA FOR A CHANCE OF BASIN/VALLEY RAIN AND A
CHANCE OF SNOW IN THE MOUNTAINS WITH SNOW LEVEL 4500-5500 FEET
THROUGH MONDAY AFTERNOON. MONDAY NIGHT A WEAK DISTURBANCE MOVES
THROUGH SOUTHERN OREGON FOR A CHANCE OF RAIN IN CENTRAL AND NORTH
CENTRAL OREGON, THE BLUE MOUNTAINS AND THE EAST SLOPES OF THE
CASCADES. A MID/UPPER LEVEL RIDGE OF HIGH PRESSURE BUILDS OVER THE
REGION ON TUESDAY.  POLAN

AVIATION...12Z TAFS...YESTERDAY A MID/UPPER LEVEL LOW SOUTHEAST OF
TAF SITES AND A PASSING WEAK WEATHER SYSTEM HAS BROKEN UP LOW FOG
AND STRATUS DECK EXCEPT AT KPSC AND KYKM. COOLER TEMPERATURES ABOVE
THE INVERSION PREVENT FOG FROM FORMING AT OTHER TAF SITES THROUGH
29/03Z, BUT FOG AND STRATUS MAY START TO FORM AT KALW AND KPDT AFTER
29/03Z WHILE CONDITIONS WORSEN AT KYKM AND KPSC AS BRIEF SUBSIDENCE
OCCURS BETWEEN WEATHER SYSTEMS. ANOTHER WEATHER DISTURBANCE WILL
APPROACH CENTRAL WASHINGTON AND BRING A VICINITY SHOWER TO KYKM
AFTER 29/03Z.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  33  40  32 /  10  10  10   0
ALW  43  35  43  34 /  10  10  10   0
PSC  41  35  44  34 /   0  10  10   0
YKM  41  33  42  32 /  10  20  20   0
HRI  42  34  44  34 /   0  10  10   0
ELN  49  33  42  32 /  10  20  20   0
RDM  56  29  46  28 /  10  10  10   0
LGD  50  29  47  29 /  10  10  10   0
GCD  52  33  50  32 /  10  10  10   0
DLS  50  39  46  36 /  10  20  10   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING WAZ027-028.

&&

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

$$

83/99/99










000
FXUS66 KPDT 281727
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
927 AM PST WED JAN 28 2015

.UPDATE...A WEAK SYSTEM IS MOVING OUT OF THE AREA THIS MORNING.
OBSERVATIONS ARE NOT SHOWING ANY PRECIPITATION SO HAVE REMOVED ALL
MENTION TODAY OF A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS EXCEPT
ALONG PORTIONS OF THE CASCADE CREST. IN THE LOWER ELEVATIONS, THE
MAIN CONCERN IS THE LOW CLOUDS AND DENSE FOG THAT DEVELOPED IN THE
OREGON AND WASHINGTON COLUMBIA BASIN ZONES AND IN THE KITTITAS
VALLEY OVERNIGHT. NUMEROUS LOCATIONS HAVE VISIBILITIES DOWN TO A
QUARTER MILE OR LESS, SO THE DENSE FOG ADVISORY LOOKS GOOD FOR NOW.
IN THE LAST HOUR OR SO, SOUTHWEST WINDS HAVE CARRIED THE FOG FROM
HERMISTON INTO WALLA WALLA. HAVE ISSUED A NOWCAST FOR THE WALLA
WALLA AREA DUE TO THE DENSE FOG. IF I END UP EXTENDING THE DENSE FOG
ADVISORY PAST 11 AM PST, MAY ADD THE WASHINGTON BLUE MOUNTAIN
FOOTHILLS TO THE ADVISORY. FOR NOW HAVE ADJUSTED THE FORECAST AS IF
FOG WILL IMPROVE THIS AFTERNOON. HAVE LOWERED TEMPERATURES AROUND
WALLA WALLA FOR TODAY. EXPECT THAT THE FOG AND LOW STRATUS WILL
STRENGTHEN AND INCREASE IN COVERAGE TONIGHT TO INCLUDE ALL OF THE
BLUE MOUNTAIN FOOTHILLS, NORTH CENTRAL OREGON DOWN TO MADRAS AND
INTO THE KITTIAS VALLEY. HAVE ALSO MADE SOME MINOR WIND DIRECTION
ADJUSTMENTS THROUGH TONIGHT. FORECAST UPDATE ALREADY OUT. PERRY

&&

.PREV DISC... /ISSUED 300 AM PST WED JAN 28 2015/

SHORT TERM...TODAY THROUGH FRIDAY...A WEAK SYSTEM CONTINUES TO
DRIFT ACROSS THE REGION EARLY THIS MORNING. THIS SYSTEM WILL CAUSE A
FEW SHOWERS NEAR THE CASCADE CREST TODAY, WITH A FEW SHOWERS IN
WALLOWA COUNTY THIS MORNING. ALSO A FEW SPRINKLES OF FLURRIES WILL
BE POSSIBLE OVER THE BLUES THIS MORNING. THIS SYSTEM HAS MIXED OUT
THE LOW LEVEL INVERSIONS ACROSS MOST OF OUR OREGON ZONES. THE
INVERSIONS IN OVER SOME OF OUR WASHINGTON ZONES PERSIST WITH SOME
AREAS OF DENSE FOG HAVING FORMED EARLY THIS MORNING. ALSO AREAS OF
DENSE FOG HAVE REDEVELOPED IN THE LOWER BASIN IN OREGON. THUS WILL
ISSUE DENSE FOG ADVISORIES FOR THE LOWER BASIN IN OREGON AND
WASHINGTON, AND THE YAKIMA VALLEY IN WASHINGTON FOR MUCH OF THIS
MORNING. ANOTHER WEAK SYSTEM IS EXPECTED TO BRING A FEW SHOWERS TO
SOUTH-CENTRAL WASHINGTON TONIGHT INTO THURSDAY MORNING. OTHERWISE
EXPECT DRY CONDITIONS DUE TO INCREASING UPPER LEVEL HIGH PRESSURE.
THIS UPPER LEVEL HIGH PRESSURE WILL CAUSE LOW LEVEL INVERSIONS TO
INCREASE ACROSS THE INTERIOR NORTHWEST. THUS WILL CONTINUE TO
INDICATE AN INCREASE IN FOG COVERAGE OVER OUR AREA TONIGHT THROUGH
FRIDAY. HIGH TEMPS WILL CONTINUE TO BE WARMER ABOVE THE INVERSIONS,
THOUGH NOT QUITE AS WARM AS IN RECENT DAYS DUE TO SOME COOLING
ALOFT. HIGH AND LOW TEMPS WITHIN FOGGY AREAS WILL SEE LIMITED
DIURNAL CHANGES, WITH HIGH TEMPS IN THE 30S TO LOW 40S. 90

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...HIGH PRESSURE RIDGE
REMAINS OVER FORECAST AREA BEGINNING FRIDAY NIGHT FOR DRY CONDITIONS
PERSISTING THROUGH SATURDAY NIGHT. SUNDAY A WARM FRONT ASSOCIATED
WITH WARM AIR ADVECTION IN THE MID LEVELS USHERS IN A CHANCE OF RAIN
DURING THE DAY ON SUNDAY. THEN A PACIFIC MID/UPPER LEVEL SHORT WAVE
AND ASSOCIATED DYNAMIC LIFT MOVES INTO THE PACIFIC NORTHWEST SUNDAY
NIGHT FOR RAIN LIKELY, EXCEPT FOR A CHANCE OF RAIN IN BENTON AND
FRANKLIN COUNTIES SUNDAY NIGHT.  MONDAY THE UPPER LEVEL SHORT WAVE
MOVES ACROSS FORECAST AREA FOR A CHANCE OF BASIN/VALLEY RAIN AND A
CHANCE OF SNOW IN THE MOUNTAINS WITH SNOW LEVEL 4500-5500 FEET
THROUGH MONDAY AFTERNOON. MONDAY NIGHT A WEAK DISTURBANCE MOVES
THROUGH SOUTHERN OREGON FOR A CHANCE OF RAIN IN CENTRAL AND NORTH
CENTRAL OREGON, THE BLUE MOUNTAINS AND THE EAST SLOPES OF THE
CASCADES. A MID/UPPER LEVEL RIDGE OF HIGH PRESSURE BUILDS OVER THE
REGION ON TUESDAY.  POLAN

AVIATION...12Z TAFS...YESTERDAY A MID/UPPER LEVEL LOW SOUTHEAST OF
TAF SITES AND A PASSING WEAK WEATHER SYSTEM HAS BROKEN UP LOW FOG
AND STRATUS DECK EXCEPT AT KPSC AND KYKM. COOLER TEMPERATURES ABOVE
THE INVERSION PREVENT FOG FROM FORMING AT OTHER TAF SITES THROUGH
29/03Z, BUT FOG AND STRATUS MAY START TO FORM AT KALW AND KPDT AFTER
29/03Z WHILE CONDITIONS WORSEN AT KYKM AND KPSC AS BRIEF SUBSIDENCE
OCCURS BETWEEN WEATHER SYSTEMS. ANOTHER WEATHER DISTURBANCE WILL
APPROACH CENTRAL WASHINGTON AND BRING A VICINITY SHOWER TO KYKM
AFTER 29/03Z.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  33  40  32 /  10  10  10   0
ALW  43  35  43  34 /  10  10  10   0
PSC  41  35  44  34 /   0  10  10   0
YKM  41  33  42  32 /  10  20  20   0
HRI  42  34  44  34 /   0  10  10   0
ELN  49  33  42  32 /  10  20  20   0
RDM  56  29  46  28 /  10  10  10   0
LGD  50  29  47  29 /  10  10  10   0
GCD  52  33  50  32 /  10  10  10   0
DLS  50  39  46  36 /  10  20  10   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING WAZ027-028.

&&

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

$$

83/99/99









000
FXUS66 KPDT 281104
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST WED JAN 28 2015

.SHORT TERM...TODAY THROUGH FRIDAY...A WEAK SYSTEM CONTINUES TO
DRIFT ACROSS THE REGION EARLY THIS MORNING. THIS SYSTEM WILL CAUSE A
FEW SHOWERS NEAR THE CASCADE CREST TODAY, WITH A FEW SHOWERS IN
WALLOWA COUNTY THIS MORNING. ALSO A FEW SPRINKLES OF FLURRIES WILL
BE POSSIBLE OVER THE BLUES THIS MORNING. THIS SYSTEM HAS MIXED OUT
THE LOW LEVEL INVERSIONS ACROSS MOST OF OUR OREGON ZONES. THE
INVERSIONS IN OVER SOME OF OUR WASHINGTON ZONES PERSIST WITH SOME
AREAS OF DENSE FOG HAVING FORMED EARLY THIS MORNING. ALSO AREAS OF
DENSE FOG HAVE REDEVELOPED IN THE LOWER BASIN IN OREGON. THUS WILL
ISSUE DENSE FOG ADVISORIES FOR THE LOWER BASIN IN OREGON AND
WASHINGTON, AND THE YAKIMA VALLEY IN WASHINGTON FOR MUCH OF THIS
MORNING. ANOTHER WEAK SYSTEM IS EXPECTED TO BRING A FEW SHOWERS TO
SOUTH-CENTRAL WASHINGTON TONIGHT INTO THURSDAY MORNING. OTHERWISE
EXPECT DRY CONDITIONS DUE TO INCREASING UPPER LEVEL HIGH PRESSURE.
THIS UPPER LEVEL HIGH PRESSURE WILL CAUSE LOW LEVEL INVERSIONS TO
INCREASE ACROSS THE INTERIOR NORTHWEST. THUS WILL CONTINUE TO
INDICATE AN INCREASE IN FOG COVERAGE OVER OUR AREA TONIGHT THROUGH
FRIDAY. HIGH TEMPS WILL CONTINUE TO BE WARMER ABOVE THE INVERSIONS,
THOUGH NOT QUITE AS WARM AS IN RECENT DAYS DUE TO SOME COOLING
ALOFT. HIGH AND LOW TEMPS WITHIN FOGGY AREAS WILL SEE LIMITED
DIURNAL CHANGES, WITH HIGH TEMPS IN THE 30S TO LOW 40S. 90

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...HIGH PRESSURE RIDGE
REMAINS OVER FORECAST AREA BEGINNING FRIDAY NIGHT FOR DRY CONDITIONS
PERSISTING THROUGH SATURDAY NIGHT. SUNDAY A WARM FRONT ASSOCIATED
WITH WARM AIR ADVECTION IN THE MID LEVELS USHERS IN A CHANCE OF RAIN
DURING THE DAY ON SUNDAY. THEN A PACIFIC MID/UPPER LEVEL SHORT WAVE
AND ASSOCIATED DYNAMIC LIFT MOVES INTO THE PACIFIC NORTHWEST SUNDAY
NIGHT FOR RAIN LIKELY, EXCEPT FOR A CHANCE OF RAIN IN BENTON AND
FRANKLIN COUNTIES SUNDAY NIGHT.  MONDAY THE UPPER LEVEL SHORT WAVE
MOVES ACROSS FORECAST AREA FOR A CHANCE OF BASIN/VALLEY RAIN AND A
CHANCE OF SNOW IN THE MOUNTAINS WITH SNOW LEVEL 4500-5500 FEET
THROUGH MONDAY AFTERNOON. MONDAY NIGHT A WEAK DISTURBANCE MOVES
THROUGH SOUTHERN OREGON FOR A CHANCE OF RAIN IN CENTRAL AND NORTH
CENTRAL OREGON, THE BLUE MOUNTAINS AND THE EAST SLOPES OF THE
CASCADES. A MID/UPPER LEVEL RIDGE OF HIGH PRESSURE BUILDS OVER THE
REGION ON TUESDAY.  POLAN

&&

.AVIATION...12Z TAFS...YESTERDAY A MID/UPPER LEVEL LOW SOUTHEAST OF
TAF SITES AND A PASSING WEAK WEATHER SYSTEM HAS BROKEN UP LOW FOG
AND STRATUS DECK EXCEPT AT KPSC AND KYKM. COOLER TEMPERATURES ABOVE
THE INVERSION PREVENT FOG FROM FORMING AT OTHER TAF SITES THROUGH
29/03Z, BUT FOG AND STRATUS MAY START TO FORM AT KALW AND KPDT AFTER
29/03Z WHILE CONDITIONS WORSEN AT KYKM AND KPSC AS BRIEF SUBSIDENCE
OCCURS BETWEEN WEATHER SYSTEMS. ANOTHER WEATHER DISTURBANCE WILL
APPROACH CENTRAL WASHINGTON AND BRING A VICINITY SHOWER TO KYKM
AFTER 29/03Z.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  33  40  32 /  10  10  10   0
ALW  46  35  43  34 /  10  10  10   0
PSC  41  35  44  34 /   0  10  10   0
YKM  41  33  42  32 /  10  20  20   0
HRI  42  34  44  34 /   0  10  10   0
ELN  49  33  42  32 /  10  20  20   0
RDM  56  29  46  28 /  10  10  10   0
LGD  50  29  47  29 /  10  10  10   0
GCD  52  33  50  32 /  10  10  10   0
DLS  50  39  46  36 /  10  20  10   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING WAZ027-028.

&&

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

$$

90/99/99













000
FXUS66 KPDT 281104
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST WED JAN 28 2015

.SHORT TERM...TODAY THROUGH FRIDAY...A WEAK SYSTEM CONTINUES TO
DRIFT ACROSS THE REGION EARLY THIS MORNING. THIS SYSTEM WILL CAUSE A
FEW SHOWERS NEAR THE CASCADE CREST TODAY, WITH A FEW SHOWERS IN
WALLOWA COUNTY THIS MORNING. ALSO A FEW SPRINKLES OF FLURRIES WILL
BE POSSIBLE OVER THE BLUES THIS MORNING. THIS SYSTEM HAS MIXED OUT
THE LOW LEVEL INVERSIONS ACROSS MOST OF OUR OREGON ZONES. THE
INVERSIONS IN OVER SOME OF OUR WASHINGTON ZONES PERSIST WITH SOME
AREAS OF DENSE FOG HAVING FORMED EARLY THIS MORNING. ALSO AREAS OF
DENSE FOG HAVE REDEVELOPED IN THE LOWER BASIN IN OREGON. THUS WILL
ISSUE DENSE FOG ADVISORIES FOR THE LOWER BASIN IN OREGON AND
WASHINGTON, AND THE YAKIMA VALLEY IN WASHINGTON FOR MUCH OF THIS
MORNING. ANOTHER WEAK SYSTEM IS EXPECTED TO BRING A FEW SHOWERS TO
SOUTH-CENTRAL WASHINGTON TONIGHT INTO THURSDAY MORNING. OTHERWISE
EXPECT DRY CONDITIONS DUE TO INCREASING UPPER LEVEL HIGH PRESSURE.
THIS UPPER LEVEL HIGH PRESSURE WILL CAUSE LOW LEVEL INVERSIONS TO
INCREASE ACROSS THE INTERIOR NORTHWEST. THUS WILL CONTINUE TO
INDICATE AN INCREASE IN FOG COVERAGE OVER OUR AREA TONIGHT THROUGH
FRIDAY. HIGH TEMPS WILL CONTINUE TO BE WARMER ABOVE THE INVERSIONS,
THOUGH NOT QUITE AS WARM AS IN RECENT DAYS DUE TO SOME COOLING
ALOFT. HIGH AND LOW TEMPS WITHIN FOGGY AREAS WILL SEE LIMITED
DIURNAL CHANGES, WITH HIGH TEMPS IN THE 30S TO LOW 40S. 90

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...HIGH PRESSURE RIDGE
REMAINS OVER FORECAST AREA BEGINNING FRIDAY NIGHT FOR DRY CONDITIONS
PERSISTING THROUGH SATURDAY NIGHT. SUNDAY A WARM FRONT ASSOCIATED
WITH WARM AIR ADVECTION IN THE MID LEVELS USHERS IN A CHANCE OF RAIN
DURING THE DAY ON SUNDAY. THEN A PACIFIC MID/UPPER LEVEL SHORT WAVE
AND ASSOCIATED DYNAMIC LIFT MOVES INTO THE PACIFIC NORTHWEST SUNDAY
NIGHT FOR RAIN LIKELY, EXCEPT FOR A CHANCE OF RAIN IN BENTON AND
FRANKLIN COUNTIES SUNDAY NIGHT.  MONDAY THE UPPER LEVEL SHORT WAVE
MOVES ACROSS FORECAST AREA FOR A CHANCE OF BASIN/VALLEY RAIN AND A
CHANCE OF SNOW IN THE MOUNTAINS WITH SNOW LEVEL 4500-5500 FEET
THROUGH MONDAY AFTERNOON. MONDAY NIGHT A WEAK DISTURBANCE MOVES
THROUGH SOUTHERN OREGON FOR A CHANCE OF RAIN IN CENTRAL AND NORTH
CENTRAL OREGON, THE BLUE MOUNTAINS AND THE EAST SLOPES OF THE
CASCADES. A MID/UPPER LEVEL RIDGE OF HIGH PRESSURE BUILDS OVER THE
REGION ON TUESDAY.  POLAN

&&

.AVIATION...12Z TAFS...YESTERDAY A MID/UPPER LEVEL LOW SOUTHEAST OF
TAF SITES AND A PASSING WEAK WEATHER SYSTEM HAS BROKEN UP LOW FOG
AND STRATUS DECK EXCEPT AT KPSC AND KYKM. COOLER TEMPERATURES ABOVE
THE INVERSION PREVENT FOG FROM FORMING AT OTHER TAF SITES THROUGH
29/03Z, BUT FOG AND STRATUS MAY START TO FORM AT KALW AND KPDT AFTER
29/03Z WHILE CONDITIONS WORSEN AT KYKM AND KPSC AS BRIEF SUBSIDENCE
OCCURS BETWEEN WEATHER SYSTEMS. ANOTHER WEATHER DISTURBANCE WILL
APPROACH CENTRAL WASHINGTON AND BRING A VICINITY SHOWER TO KYKM
AFTER 29/03Z.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  33  40  32 /  10  10  10   0
ALW  46  35  43  34 /  10  10  10   0
PSC  41  35  44  34 /   0  10  10   0
YKM  41  33  42  32 /  10  20  20   0
HRI  42  34  44  34 /   0  10  10   0
ELN  49  33  42  32 /  10  20  20   0
RDM  56  29  46  28 /  10  10  10   0
LGD  50  29  47  29 /  10  10  10   0
GCD  52  33  50  32 /  10  10  10   0
DLS  50  39  46  36 /  10  20  10   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING ORZ044.

WA...DENSE FOG ADVISORY UNTIL 11 AM PST THIS MORNING WAZ027-028.

&&

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

$$

90/99/99












000
FXUS66 KPDT 280522 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
922 PM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.UPDATE...PATCHY FOG AND LOW STRATUS HAS REDEVELOPED THIS EVENING
IN THE LOWER COLUMBIA BASIN BELOW 1400 FEET MSL AND THE YAKIMA
VALLEY. THE LOWEST VISIBILITY WAS NOTED TO BE IN UPPER COLUMBIA
BASIN OF CENTRAL TO NORTHERN WASHINGTON STATE BUT WILL KEEP ON
LOCATIONS FURTHER SOUTH IN CASE FOG BECOMES MORE DENSE.
OTHERWISE...HAVE NUDGED OVERNIGHT LOW TEMPERATURES A LITTLE HIGHER
AS MID AND UPPER LEVEL CLOUDS HAS SLOWED RADIATIONAL COOLING THIS
EVENING. A SHORT WAVE TROUGH AND AN UPPER LEVEL LOW PASSING TO THE
SOUTHEAST WILL BRING MOSTLY CLOUDY CONDITIONS AND A SLIGHT CHANCE
OF PRECIPITATION TO THE CASCADES DURING THE DAY ON WEDNESDAY. BIEDA

.AVIATION...06Z TAFS...A COMBINATION OF AN UPPER LEVEL LOW SOUTHEAST
OF TAF SITES AND A PASSING WEAK WEATHER SYSTEM HAS BROKEN UP LOW FOG
AND STRATUS DECK EXCEPT AT KPSC AND KYKM.  A PASSING SHOWER IS
POSSIBLE AS THE WEAK SYSTEM PASSES OVER THRU 29/00Z AT KDLS AND
KALW.  DECREASING TEMPERATURES ABOVE THE INVERSION LAYER SHOULD HELP
KEEP FOG AWAY FROM ALL OTHER TAF SITES NOT PRESENTLY AFFECTED THRU
29/03Z...BUT FOG AND STRATUS MAY START TO REFORM AT KALW AND KPDT
AFT 29/03Z WHILE CONDITIONS WORSEN ONCE MORE AT KYKM AND KPSC AS
BRIEF SUBSIDENCE OCCURS BTWN WEATHER SYSTEMS.  ANOTHER WEATHER
DISTURBANCE WILL APPROACH CENT WA AND BRING A VICINITY SHOWER TO
KYKM AFT 29/03Z.  BIEDA

&&

.PREV DISC... /ISSUED 340 PM PST TUE JAN 27 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  49  34  44 /  10  10  10  10
ALW  36  46  35  44 /  10  10  10  10
PSC  36  47  35  44 /  10   0  10  10
YKM  31  44  32  42 /  10  10  10  10
HRI  36  49  35  45 /  10  10  10  10
ELN  40  45  33  43 /  10  10  20  10
RDM  34  57  33  49 /  10  10  10  10
LGD  38  51  32  47 /  10  10  10  10
GCD  36  53  34  52 /  10  10  10  10
DLS  40  51  39  49 /  20  20  10  10

&&

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

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

$$

98/77/98










000
FXUS66 KPDT 280522 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
922 PM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.UPDATE...PATCHY FOG AND LOW STRATUS HAS REDEVELOPED THIS EVENING
IN THE LOWER COLUMBIA BASIN BELOW 1400 FEET MSL AND THE YAKIMA
VALLEY. THE LOWEST VISIBILITY WAS NOTED TO BE IN UPPER COLUMBIA
BASIN OF CENTRAL TO NORTHERN WASHINGTON STATE BUT WILL KEEP ON
LOCATIONS FURTHER SOUTH IN CASE FOG BECOMES MORE DENSE.
OTHERWISE...HAVE NUDGED OVERNIGHT LOW TEMPERATURES A LITTLE HIGHER
AS MID AND UPPER LEVEL CLOUDS HAS SLOWED RADIATIONAL COOLING THIS
EVENING. A SHORT WAVE TROUGH AND AN UPPER LEVEL LOW PASSING TO THE
SOUTHEAST WILL BRING MOSTLY CLOUDY CONDITIONS AND A SLIGHT CHANCE
OF PRECIPITATION TO THE CASCADES DURING THE DAY ON WEDNESDAY. BIEDA

.AVIATION...06Z TAFS...A COMBINATION OF AN UPPER LEVEL LOW SOUTHEAST
OF TAF SITES AND A PASSING WEAK WEATHER SYSTEM HAS BROKEN UP LOW FOG
AND STRATUS DECK EXCEPT AT KPSC AND KYKM.  A PASSING SHOWER IS
POSSIBLE AS THE WEAK SYSTEM PASSES OVER THRU 29/00Z AT KDLS AND
KALW.  DECREASING TEMPERATURES ABOVE THE INVERSION LAYER SHOULD HELP
KEEP FOG AWAY FROM ALL OTHER TAF SITES NOT PRESENTLY AFFECTED THRU
29/03Z...BUT FOG AND STRATUS MAY START TO REFORM AT KALW AND KPDT
AFT 29/03Z WHILE CONDITIONS WORSEN ONCE MORE AT KYKM AND KPSC AS
BRIEF SUBSIDENCE OCCURS BTWN WEATHER SYSTEMS.  ANOTHER WEATHER
DISTURBANCE WILL APPROACH CENT WA AND BRING A VICINITY SHOWER TO
KYKM AFT 29/03Z.  BIEDA

&&

.PREV DISC... /ISSUED 340 PM PST TUE JAN 27 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  49  34  44 /  10  10  10  10
ALW  36  46  35  44 /  10  10  10  10
PSC  36  47  35  44 /  10   0  10  10
YKM  31  44  32  42 /  10  10  10  10
HRI  36  49  35  45 /  10  10  10  10
ELN  40  45  33  43 /  10  10  20  10
RDM  34  57  33  49 /  10  10  10  10
LGD  38  51  32  47 /  10  10  10  10
GCD  36  53  34  52 /  10  10  10  10
DLS  40  51  39  49 /  20  20  10  10

&&

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

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

$$

98/77/98









000
FXUS66 KPDT 280443
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
843 PM PST TUE JAN 27 2015

.UPDATE...PATCHY FOG AND LOW STRATUS HAS REDEVELOPED THIS EVENING
IN THE LOWER COLUMBIA BASIN BELOW 1400 FEET MSL AND THE YAKIMA
VALLEY. THE LOWEST VISIBILITY WAS NOTED TO BE IN UPPER COLUMBIA
BASIN OF CENTRAL TO NORTHERN WASHINGTON STATE BUT WILL KEEP ON
LOCATIONS FURTHER SOUTH IN CASE FOG BECOMES MORE DENSE.
OTHERWISE...HAVE NUDGED OVERNIGHT LOW TEMPERATURES A LITTLE HIGHER
AS MID AND UPPER LEVEL CLOUDS HAS SLOWED RADITIONAL COOLING THIS
EVENING. A SHORT WAVE TROUGH AND AN UPPER LEVEL LOW PASSING TO THE
SOUTHEAST WILL BRING MOSTLY CLOUDY CONDITIONS AND A SLIGHT CHANCE
OF PRECIPITATION TO THE CASCADES DURING THE DAY ON WEDNESDAY. BIEDA

&&

.PREV DISC... /ISSUED 340 PM PST TUE JAN 27 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

AVIATION...00Z TAFS...A WEAK WEATHER SYSTEM MOVED THROUGH THE AREA
HELPING TO BREAK UP THE LOW CLOUDS AND FOG ACROSS MUCH OF THE
REGION....EXCEPT FOR AT KPSC AND KYKM WHERE IFR CIGS REMAIN. AFTER
28/03Z AND ESPECIALLY AFTER 28/10Z THERE IS THE POTENTIAL FOR MVFR
OR IFR CIGS/VIS IN LOW CLOUDS...FOG AND MIST TO RETURN AT SEVERAL
TAFS SITES. THE AFFECTED TAF SITES INCLUDE KDLS...KYKM...KPSC...KPDT
AND KALW. CONDITIONS SHOULD AGAIN BEGIN TO IMPROVE BACK TO MVFR/VFR
FOR MOST OF THESE AFFECTED TAF SITES AFTER 28/19Z. INTRODUCED VCSH
AT KDLS AND KYKM AFTER 28/12-15Z TO ACCOUNT FOR A WEAK DISTURBANCE
THAT MOVES ALONG THE CASCADES. WINDS WILL REMAIN LIGHT...AOB 10KTS
THROUGH THE PERIOD AT ALL TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  49  34  44 /  10  10  10  10
ALW  36  46  35  44 /  10  10  10  10
PSC  36  47  35  44 /  10   0  10  10
YKM  31  44  32  42 /  10  10  10  10
HRI  36  49  35  45 /  10  10  10  10
ELN  40  45  33  43 /  10  10  20  10
RDM  34  57  33  49 /  10  10  10  10
LGD  38  51  32  47 /  10  10  10  10
GCD  36  53  34  52 /  10  10  10  10
DLS  40  51  39  49 /  20  20  10  10

&&

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

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

$$

98/77/77






000
FXUS66 KPDT 280443
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
843 PM PST TUE JAN 27 2015

.UPDATE...PATCHY FOG AND LOW STRATUS HAS REDEVELOPED THIS EVENING
IN THE LOWER COLUMBIA BASIN BELOW 1400 FEET MSL AND THE YAKIMA
VALLEY. THE LOWEST VISIBILITY WAS NOTED TO BE IN UPPER COLUMBIA
BASIN OF CENTRAL TO NORTHERN WASHINGTON STATE BUT WILL KEEP ON
LOCATIONS FURTHER SOUTH IN CASE FOG BECOMES MORE DENSE.
OTHERWISE...HAVE NUDGED OVERNIGHT LOW TEMPERATURES A LITTLE HIGHER
AS MID AND UPPER LEVEL CLOUDS HAS SLOWED RADITIONAL COOLING THIS
EVENING. A SHORT WAVE TROUGH AND AN UPPER LEVEL LOW PASSING TO THE
SOUTHEAST WILL BRING MOSTLY CLOUDY CONDITIONS AND A SLIGHT CHANCE
OF PRECIPITATION TO THE CASCADES DURING THE DAY ON WEDNESDAY. BIEDA

&&

.PREV DISC... /ISSUED 340 PM PST TUE JAN 27 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

AVIATION...00Z TAFS...A WEAK WEATHER SYSTEM MOVED THROUGH THE AREA
HELPING TO BREAK UP THE LOW CLOUDS AND FOG ACROSS MUCH OF THE
REGION....EXCEPT FOR AT KPSC AND KYKM WHERE IFR CIGS REMAIN. AFTER
28/03Z AND ESPECIALLY AFTER 28/10Z THERE IS THE POTENTIAL FOR MVFR
OR IFR CIGS/VIS IN LOW CLOUDS...FOG AND MIST TO RETURN AT SEVERAL
TAFS SITES. THE AFFECTED TAF SITES INCLUDE KDLS...KYKM...KPSC...KPDT
AND KALW. CONDITIONS SHOULD AGAIN BEGIN TO IMPROVE BACK TO MVFR/VFR
FOR MOST OF THESE AFFECTED TAF SITES AFTER 28/19Z. INTRODUCED VCSH
AT KDLS AND KYKM AFTER 28/12-15Z TO ACCOUNT FOR A WEAK DISTURBANCE
THAT MOVES ALONG THE CASCADES. WINDS WILL REMAIN LIGHT...AOB 10KTS
THROUGH THE PERIOD AT ALL TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  49  34  44 /  10  10  10  10
ALW  36  46  35  44 /  10  10  10  10
PSC  36  47  35  44 /  10   0  10  10
YKM  31  44  32  42 /  10  10  10  10
HRI  36  49  35  45 /  10  10  10  10
ELN  40  45  33  43 /  10  10  20  10
RDM  34  57  33  49 /  10  10  10  10
LGD  38  51  32  47 /  10  10  10  10
GCD  36  53  34  52 /  10  10  10  10
DLS  40  51  39  49 /  20  20  10  10

&&

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

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

$$

98/77/77







000
FXUS66 KPDT 272341 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
340 PM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

&&

.AVIATION...00Z TAFS...A WEAK WEATHER SYSTEM MOVED THROUGH THE AREA
HELPING TO BREAK UP THE LOW CLOUDS AND FOG ACROSS MUCH OF THE
REGION....EXCEPT FOR AT KPSC AND KYKM WHERE IFR CIGS REMAIN. AFTER
28/03Z AND ESPECIALLY AFTER 28/10Z THERE IS THE POTENTIAL FOR MVFR
OR IFR CIGS/VIS IN LOW CLOUDS...FOG AND MIST TO RETURN AT SEVERAL
TAFS SITES. THE AFFECTED TAF SITES INCLUDE KDLS...KYKM...KPSC...KPDT
AND KALW. CONDITIONS SHOULD AGAIN BEGIN TO IMPROVE BACK TO MVFR/VFR
FOR MOST OF THESE AFFECTED TAF SITES AFTER 28/19Z. INTRODUCED VCSH
AT KDLS AND KYKM AFTER 28/12-15Z TO ACCOUNT FOR A WEAK DISTURBANCE
THAT MOVES ALONG THE CASCADES. WINDS WILL REMAIN LIGHT...AOB 10KTS
THROUGH THE PERIOD AT ALL TAF SITES. 77


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  46  34  44 /  10  10  10  10
ALW  39  45  35  44 /  10  10  10  10
PSC  37  45  35  44 /  10  10  10  10
YKM  33  42  32  42 /  10  10  10  10
HRI  39  47  35  45 /  10  10  10  10
ELN  33  42  33  43 /  10  10  20  10
RDM  35  56  33  49 /  10  10  10  10
LGD  36  51  32  47 /  10  10  10  10
GCD  36  54  34  52 /  10  10  10  10
DLS  41  49  39  49 /  20  10  10  10

&&

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

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

$$

89/77/77







000
FXUS66 KPDT 272341 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
340 PM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

&&

.AVIATION...00Z TAFS...A WEAK WEATHER SYSTEM MOVED THROUGH THE AREA
HELPING TO BREAK UP THE LOW CLOUDS AND FOG ACROSS MUCH OF THE
REGION....EXCEPT FOR AT KPSC AND KYKM WHERE IFR CIGS REMAIN. AFTER
28/03Z AND ESPECIALLY AFTER 28/10Z THERE IS THE POTENTIAL FOR MVFR
OR IFR CIGS/VIS IN LOW CLOUDS...FOG AND MIST TO RETURN AT SEVERAL
TAFS SITES. THE AFFECTED TAF SITES INCLUDE KDLS...KYKM...KPSC...KPDT
AND KALW. CONDITIONS SHOULD AGAIN BEGIN TO IMPROVE BACK TO MVFR/VFR
FOR MOST OF THESE AFFECTED TAF SITES AFTER 28/19Z. INTRODUCED VCSH
AT KDLS AND KYKM AFTER 28/12-15Z TO ACCOUNT FOR A WEAK DISTURBANCE
THAT MOVES ALONG THE CASCADES. WINDS WILL REMAIN LIGHT...AOB 10KTS
THROUGH THE PERIOD AT ALL TAF SITES. 77


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  46  34  44 /  10  10  10  10
ALW  39  45  35  44 /  10  10  10  10
PSC  37  45  35  44 /  10  10  10  10
YKM  33  42  32  42 /  10  10  10  10
HRI  39  47  35  45 /  10  10  10  10
ELN  33  42  33  43 /  10  10  20  10
RDM  35  56  33  49 /  10  10  10  10
LGD  36  51  32  47 /  10  10  10  10
GCD  36  54  34  52 /  10  10  10  10
DLS  41  49  39  49 /  20  10  10  10

&&

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

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

$$

89/77/77








000
FXUS66 KPDT 272241
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
241 PM PST TUE JAN 27 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

&&

.AVIATION...18Z TAFS...PATCHY LOW STRATUS AND FOG CONTINUE THIS
MORNING AT KDLS...KYKM...KPSC...KPDT AND KALW. THE LIFR/IFR CIGS AND
VIS ARE EXPECTED TO RISE AND BECOME BKN AFTER 20Z TODAY. IT APPEARS
KYKM MAY SEE THE FOG PERSIST THE LONGEST BUT EVEN HERE CONDITIONS
SHOULD SEE SOME IMPROVEMENT AFTER 20-22Z TODAY. AFTER  28/01-03Z AND
ESPECIALLY AFTER 28/10Z GUIDANCE IS INDICATING THE POTENTIAL FOR
LOWERING CIGS/VIS AGAIN AT MOST TERMINALS(EXCEPT KRDM AND KBDN) BACK
INTO THE IFR OR PERHAPS LIFR CATEGORY. AT KBDN AND KRDM EXPECT JUST
MID TO HIGH LEVEL CLOUDS MAINLY BETWEEN 5K TO 15K FEET AGL THROUGH
THE PERIOD. WINDS ARE FORECAST TO REMAIN LIGHT AOB 10KTS THROUGH THE
NEXT 24 HOURS. 77


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  46  34  44 /  10  10  10  10
ALW  39  45  35  44 /  10  10  10  10
PSC  37  45  35  44 /  10  10  10  10
YKM  33  42  32  42 /  10  10  10  10
HRI  39  47  35  45 /  10  10  10  10
ELN  33  42  33  43 /  10  10  20  10
RDM  35  56  33  49 /  10  10  10  10
LGD  36  51  32  47 /  10  10  10  10
GCD  36  54  34  52 /  10  10  10  10
DLS  41  49  39  49 /  20  10  10  10

&&

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

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

$$

89/77/77













000
FXUS66 KPDT 272241
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
241 PM PST TUE JAN 27 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY...HIGH PRESSURE WILL GRADUALLY
WEAKEN TONIGHT THROUGH WEDNESDAY AS TWO SYSTEMS COLLIDE ACROSS THE
PACIFIC NORTHWEST.  DO NOT ANTICIPATE MUCH IN PRECIPITATION...EXCEPT
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE CASCADES AND THE
SOUTHERN BLUE MOUNTAINS THIS EVENING.  THE COLD AIR ALOFT WITH THIS
SYSTEM WILL WEAKEN THE INVERSION THAT HAS BEEN IN PLACE ACROSS THE
LOWER ELEVATIONS.  THIS SHOULD HELP LIFT THE FOG INTO A STATUS
DECK...AND MAY EVEN CLEAR OUT SOME AREAS TEMPORARILY.  EXPECT PARTLY
TO MOSTLY CLOUDY SKIES WEDNESDAY WITH SOME CLEARING AND FOG
REDEVELOPMENT WEDNESDAY NIGHT AS HIGH PRESSURE REBUILDS FOR THE
REMAINDER OF THE SHORT TERM.  THE MOST FAVORED AREAS FOR FOG ON
THURSDAY AND FRIDAY LOOK TO BE ALONG THE FOOTHILLS OF THE BLUE
MOUNTAINS...CENTRAL AND NORTH CENTRAL OREGON.  PATCHY FOG IS
EXPECTED FOR THE LOWER ELEVATIONS.  OTHERWISE...MOSTLY DRY
CONDITIONS EXPECTED THURSDAY AND FRIDAY. WEBER

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY NIGHT...THE LONG TERM
PERIOD STARTS OFF WITH AN UPPER LEVEL RIDGE OVER THE PAC NW...WHICH
WILL ALLOW PATCHY FOG/FREEZING FOG TO FORM IN THE BASINS FRIDAY
NIGHT THROUGH SATURDAY NIGHT/SUNDAY. HEADING INTO THE SUNDAY THROUGH
TUESDAY PERIOD WE ARE EXPECTING A MUCH MORE ACTIVE WEATHER PATTERN
AS THE UPPER LEVEL RIDGE BEGINS TO BREAK DOWN. MODEL GUIDANCE IS IN
GOOD AGREEMENT THAT SEVERAL DISTURBANCES WILL MOVE THROUGH THE
REGION...BRINGING CHANCES OF RAIN AND MOUNTAIN SNOW. AT THIS TIME
SNOW LEVELS ARE GENERALLY FORECAST TO REMAIN BETWEEN 3000 TO 5000
FEET WITH THESE STORM SYSTEMS...PERHAPS LOWERING TO 1500-2500 FEET
TUESDAY NIGHT IN SOME LOCATIONS. SOUTH TO SOUTHWEST WINDS WILL
INCREASE SUNDAY NIGHT INTO MONDAY...UP INTO THE 10-20 MPH RANGE AS A
SURFACE LOW PASSES NEAR OR JUST TO THE NORTH OF OUR CWA. DROPPED
TEMPERATURES BACK SEVERAL DEGREES IN THE MONDAY/TUESDAY TIMEFRAME TO
ACCOUNT FOR THE POTENTIAL OF COLDER AIR ALOFT. THE 27/12Z ECMWF IS
INDICATING 850MB TEMPERATURES DROPPING TO BETWEEN 0 TO -4 DEGREES
CELSIUS DURING THIS TIME. IN GENERAL EXPECT NEAR TO SLIGHTLY ABOVE
AVERAGE TEMPERATURES THROUGH THE LONG TERM PERIOD. 77

&&

.AVIATION...18Z TAFS...PATCHY LOW STRATUS AND FOG CONTINUE THIS
MORNING AT KDLS...KYKM...KPSC...KPDT AND KALW. THE LIFR/IFR CIGS AND
VIS ARE EXPECTED TO RISE AND BECOME BKN AFTER 20Z TODAY. IT APPEARS
KYKM MAY SEE THE FOG PERSIST THE LONGEST BUT EVEN HERE CONDITIONS
SHOULD SEE SOME IMPROVEMENT AFTER 20-22Z TODAY. AFTER  28/01-03Z AND
ESPECIALLY AFTER 28/10Z GUIDANCE IS INDICATING THE POTENTIAL FOR
LOWERING CIGS/VIS AGAIN AT MOST TERMINALS(EXCEPT KRDM AND KBDN) BACK
INTO THE IFR OR PERHAPS LIFR CATEGORY. AT KBDN AND KRDM EXPECT JUST
MID TO HIGH LEVEL CLOUDS MAINLY BETWEEN 5K TO 15K FEET AGL THROUGH
THE PERIOD. WINDS ARE FORECAST TO REMAIN LIGHT AOB 10KTS THROUGH THE
NEXT 24 HOURS. 77


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  46  34  44 /  10  10  10  10
ALW  39  45  35  44 /  10  10  10  10
PSC  37  45  35  44 /  10  10  10  10
YKM  33  42  32  42 /  10  10  10  10
HRI  39  47  35  45 /  10  10  10  10
ELN  33  42  33  43 /  10  10  20  10
RDM  35  56  33  49 /  10  10  10  10
LGD  36  51  32  47 /  10  10  10  10
GCD  36  54  34  52 /  10  10  10  10
DLS  41  49  39  49 /  20  10  10  10

&&

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

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

$$

89/77/77












000
FXUS66 KPDT 271756 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
956 AM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.UPDATE...HIGH PRESSURE CURRENTLY OVER THE AREA WILL BEGIN TO BREAK
DOWN TODAY AS A WEATHER SYSTEM FROM THE SOUTH AND A WEAK SYSTEM FROM
THE WEST COLLIDES WITH THE AREA.  OVERALL THE MODELS AGREE WITH
COLDER AIR ALOFT MOVING IN AND BREAKING THE INVERSION DOWN OVER THE
VALLEYS.  THE ISSUE IS THE TIMING OF THIS BREAK DOWN.  MOST MODELS
WANT TO MIX THINGS OUT ACROSS THE LOWER ELEVATIONS AND HAVE THE
TYPICAL COLD SPOTS LIKE PENDLETON...HERMISTON...YAKIMA...AND THE
TRI-CITIES WARM UP INTO THE UPPER 40S TO MID 50S.  WHILE THIS CAN
NOT BE NOT RULED OUT...CONFIDENCE IS VERY LOW THAT THE MIXING
WILL BE STRONG ENOUGH TO MAKE THIS HAPPEN.  OVERALL...HAVE GONE WITH
MOST AREAS ALONG THE FOOTHILLS MIXING OUT THIS EVENING AFTER
SUNSET...WHICH WOULD STILL WARM THEM UP A BIT...BUT MORE SO INTO THE
MID 40S.  AREAS ALONG THE SOUTHERN FOOTHILLS LIKE CONDON AND FOSSIL
WILL LIKELY BE MOSTLY CLEAR AND MILD AGAIN...SO LONG AS THE
FOG/STRATUS DECK DOES NOT EXPAND.  CENTRAL OREGON AND THE JOHN DAY
VALLEY SHOULD ALL BE MILD AS WELL AGAIN TODAY WITH PARTLY CLOUDY
SKIES.  THE WASHINGTON BASIN MAY IMPROVE...BUT THE CONFIDENCE IS
LOWEST FOR THIS AREA.  FORECASTING HIGH TEMPERATURES ARE VERY
DIFFICULT IN THESE SITUATIONS...AND LATE MORNING TO EARLY AFTERNOON
UPDATES MAY BE NEEDED...DEPENDING ON THE CHANGES.  WEBER

&&

.AVIATION...18Z TAFS...PATCHY LOW STRATUS AND FOG CONTINUE THIS
MORNING AT KDLS...KYKM...KPSC...KPDT AND KALW. THE LIFR/IFR CIGS AND
VIS ARE EXPECTED TO RISE AND BECOME BKN AFTER 20Z TODAY. IT APPEARS
KYKM MAY SEE THE FOG PERSIST THE LONGEST BUT EVEN HERE CONDITIONS
SHOULD SEE SOME IMPROVEMENT AFTER 20-22Z TODAY. AFTER  28/01-03Z AND
ESPECIALLY AFTER 28/10Z GUIDANCE IS INDICATING THE POTENTIAL FOR
LOWERING CIGS/VIS AGAIN AT MOST TERMINALS(EXCEPT KRDM AND KBDN) BACK
INTO THE IFR OR PERHAPS LIFR CATEGORY. AT KBDN AND KRDM EXPECT JUST
MID TO HIGH LEVEL CLOUDS MAINLY BETWEEN 5K TO 15K FEET AGL THROUGH
THE PERIOD. WINDS ARE FORECAST TO REMAIN LIGHT AOB 10KTS THROUGH THE
NEXT 24 HOURS. 77

.PREV DISC... /ISSUED 349 AM PST TUE JAN 27 2015/

SHORT TERM...TODAY THROUGH THURSDAY AFTERNOON...INCREASING MID AND
UPPER LEVEL CLOUDS STREAMING THROUGH THE MID/UPPER LEVEL RIDGE
TODAY AS A RESULT OF A WEAK UPPER LEVEL DISTURBANCE MOVING THROUGH
THE RIDGE. MEANWHILE THE LOW STRATUS CLOUDS AND FOG WILL PERSIST
ACROSS THE LOWER COLUMBIA BASIN. A DENSE FOG ADVISORY REMAINS IN
EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA BASIN, ADJACENT
VALLEYS AND THE FOOTHILLS OF THE BLUE MOUNTAINS. EXPECT LITTLE
SCOURING OUT OF THE LOW CLOUDS AND FOG. ANOTHER VERY WEAK SYSTEM
MOVES THROUGH THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY FOR A
SLIGHT CHANCE OF RAIN IN THE BLUE MOUNTAINS AN WALLOWA COUNTY.
POLAN

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...UPPER LEVEL HIGH
PRESSURE WILL LINGER OVER THE REGION THURSDAY NIGHT INTO SATURDAY.
THUS EXPECT MAINLY DRY CONDITIONS. ALSO FOG AND LOW CLOUDINESS WILL
CONTINUE TO IMPACT LOWER ELEVATIONS AREAS (GENERALLY BELOW 3000 FT
MSL) AND A FEW HIGH ELEVATION VALLEYS. HIGH TEMPS ABOVE 3000 FT WILL
CONTINUE MILD, BUT HIGH TEMPS BELOW 3000 FT WILL BE SEASONALLY COOL.
PACIFIC SYSTEMS LOOK TO FLATTEN THE RIDGE SUNDAY INTO MONDAY. THUS
EXPECT CHANCES FOR PRECIPITATION TO RETURN TO THE REGION. AT THIS
TIME SNOW LEVELS LOOK TO LOWER TO BETWEEN 2500 AND 4000 FT MSL
OVERNIGHT, BUT SHOULD BE A BIT HIGHER DURING THE LATE MORNING AND
AFTERNOON SUNDAY AND MONDAY. SHOULD SEE SOME INCREASE IN WINDS
ACROSS THE BASIN BY MONDAY. 90

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  35  40  35 /  10   0   0  10
ALW  47  35  41  35 /  10  10  10  10
PSC  44  34  42  35 /  10   0   0  10
YKM  38  30  38  33 /  10  10   0   0
HRI  40  35  42  36 /  10  10   0  10
ELN  46  32  39  33 /  10  10   0  10
RDM  60  34  55  33 /   0   0  10  10
LGD  52  36  49  31 /   0  10  10  10
GCD  54  35  51  34 /  10  10  10  10
DLS  54  38  45  39 /  10  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL NOON PST TODAY ORZ041-044-507-508-510.

WA...DENSE FOG ADVISORY UNTIL NOON PST TODAY WAZ024-026>029-521.

&&

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

$$

89/90/77







000
FXUS66 KPDT 271756 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
956 AM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.UPDATE...HIGH PRESSURE CURRENTLY OVER THE AREA WILL BEGIN TO BREAK
DOWN TODAY AS A WEATHER SYSTEM FROM THE SOUTH AND A WEAK SYSTEM FROM
THE WEST COLLIDES WITH THE AREA.  OVERALL THE MODELS AGREE WITH
COLDER AIR ALOFT MOVING IN AND BREAKING THE INVERSION DOWN OVER THE
VALLEYS.  THE ISSUE IS THE TIMING OF THIS BREAK DOWN.  MOST MODELS
WANT TO MIX THINGS OUT ACROSS THE LOWER ELEVATIONS AND HAVE THE
TYPICAL COLD SPOTS LIKE PENDLETON...HERMISTON...YAKIMA...AND THE
TRI-CITIES WARM UP INTO THE UPPER 40S TO MID 50S.  WHILE THIS CAN
NOT BE NOT RULED OUT...CONFIDENCE IS VERY LOW THAT THE MIXING
WILL BE STRONG ENOUGH TO MAKE THIS HAPPEN.  OVERALL...HAVE GONE WITH
MOST AREAS ALONG THE FOOTHILLS MIXING OUT THIS EVENING AFTER
SUNSET...WHICH WOULD STILL WARM THEM UP A BIT...BUT MORE SO INTO THE
MID 40S.  AREAS ALONG THE SOUTHERN FOOTHILLS LIKE CONDON AND FOSSIL
WILL LIKELY BE MOSTLY CLEAR AND MILD AGAIN...SO LONG AS THE
FOG/STRATUS DECK DOES NOT EXPAND.  CENTRAL OREGON AND THE JOHN DAY
VALLEY SHOULD ALL BE MILD AS WELL AGAIN TODAY WITH PARTLY CLOUDY
SKIES.  THE WASHINGTON BASIN MAY IMPROVE...BUT THE CONFIDENCE IS
LOWEST FOR THIS AREA.  FORECASTING HIGH TEMPERATURES ARE VERY
DIFFICULT IN THESE SITUATIONS...AND LATE MORNING TO EARLY AFTERNOON
UPDATES MAY BE NEEDED...DEPENDING ON THE CHANGES.  WEBER

&&

.AVIATION...18Z TAFS...PATCHY LOW STRATUS AND FOG CONTINUE THIS
MORNING AT KDLS...KYKM...KPSC...KPDT AND KALW. THE LIFR/IFR CIGS AND
VIS ARE EXPECTED TO RISE AND BECOME BKN AFTER 20Z TODAY. IT APPEARS
KYKM MAY SEE THE FOG PERSIST THE LONGEST BUT EVEN HERE CONDITIONS
SHOULD SEE SOME IMPROVEMENT AFTER 20-22Z TODAY. AFTER  28/01-03Z AND
ESPECIALLY AFTER 28/10Z GUIDANCE IS INDICATING THE POTENTIAL FOR
LOWERING CIGS/VIS AGAIN AT MOST TERMINALS(EXCEPT KRDM AND KBDN) BACK
INTO THE IFR OR PERHAPS LIFR CATEGORY. AT KBDN AND KRDM EXPECT JUST
MID TO HIGH LEVEL CLOUDS MAINLY BETWEEN 5K TO 15K FEET AGL THROUGH
THE PERIOD. WINDS ARE FORECAST TO REMAIN LIGHT AOB 10KTS THROUGH THE
NEXT 24 HOURS. 77

.PREV DISC... /ISSUED 349 AM PST TUE JAN 27 2015/

SHORT TERM...TODAY THROUGH THURSDAY AFTERNOON...INCREASING MID AND
UPPER LEVEL CLOUDS STREAMING THROUGH THE MID/UPPER LEVEL RIDGE
TODAY AS A RESULT OF A WEAK UPPER LEVEL DISTURBANCE MOVING THROUGH
THE RIDGE. MEANWHILE THE LOW STRATUS CLOUDS AND FOG WILL PERSIST
ACROSS THE LOWER COLUMBIA BASIN. A DENSE FOG ADVISORY REMAINS IN
EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA BASIN, ADJACENT
VALLEYS AND THE FOOTHILLS OF THE BLUE MOUNTAINS. EXPECT LITTLE
SCOURING OUT OF THE LOW CLOUDS AND FOG. ANOTHER VERY WEAK SYSTEM
MOVES THROUGH THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY FOR A
SLIGHT CHANCE OF RAIN IN THE BLUE MOUNTAINS AN WALLOWA COUNTY.
POLAN

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...UPPER LEVEL HIGH
PRESSURE WILL LINGER OVER THE REGION THURSDAY NIGHT INTO SATURDAY.
THUS EXPECT MAINLY DRY CONDITIONS. ALSO FOG AND LOW CLOUDINESS WILL
CONTINUE TO IMPACT LOWER ELEVATIONS AREAS (GENERALLY BELOW 3000 FT
MSL) AND A FEW HIGH ELEVATION VALLEYS. HIGH TEMPS ABOVE 3000 FT WILL
CONTINUE MILD, BUT HIGH TEMPS BELOW 3000 FT WILL BE SEASONALLY COOL.
PACIFIC SYSTEMS LOOK TO FLATTEN THE RIDGE SUNDAY INTO MONDAY. THUS
EXPECT CHANCES FOR PRECIPITATION TO RETURN TO THE REGION. AT THIS
TIME SNOW LEVELS LOOK TO LOWER TO BETWEEN 2500 AND 4000 FT MSL
OVERNIGHT, BUT SHOULD BE A BIT HIGHER DURING THE LATE MORNING AND
AFTERNOON SUNDAY AND MONDAY. SHOULD SEE SOME INCREASE IN WINDS
ACROSS THE BASIN BY MONDAY. 90

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  35  40  35 /  10   0   0  10
ALW  47  35  41  35 /  10  10  10  10
PSC  44  34  42  35 /  10   0   0  10
YKM  38  30  38  33 /  10  10   0   0
HRI  40  35  42  36 /  10  10   0  10
ELN  46  32  39  33 /  10  10   0  10
RDM  60  34  55  33 /   0   0  10  10
LGD  52  36  49  31 /   0  10  10  10
GCD  54  35  51  34 /  10  10  10  10
DLS  54  38  45  39 /  10  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL NOON PST TODAY ORZ041-044-507-508-510.

WA...DENSE FOG ADVISORY UNTIL NOON PST TODAY WAZ024-026>029-521.

&&

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

$$

89/90/77








000
FXUS66 KPDT 271659
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
859 AM PST TUE JAN 27 2015

.UPDATE...HIGH PRESSURE CURRENTLY OVER THE AREA WILL BEGIN TO BREAK
DOWN TODAY AS A WEATHER SYSTEM FROM THE SOUTH AND A WEAK SYSTEM FROM
THE WEST COLLIDES WITH THE AREA.  OVERALL THE MODELS AGREE WITH
COLDER AIR ALOFT MOVING IN AND BREAKING THE INVERSION DOWN OVER THE
VALLEYS.  THE ISSUE IS THE TIMING OF THIS BREAK DOWN.  MOST MODELS
WANT TO MIX THINGS OUT ACROSS THE LOWER ELEVATIONS AND HAVE THE
TYPICAL COLD SPOTS LIKE PENDLETON...HERMISTON...YAKIMA...AND THE
TRI-CITIES WARM UP INTO THE UPPER 40S TO MID 50S.  WHILE THIS CAN
NOT BE NOT RULED OUT...CONFIDENCE IS VERY LOW THAT THE MIXING
WILL BE STRONG ENOUGH TO MAKE THIS HAPPEN.  OVERALL...HAVE GONE WITH
MOST AREAS ALONG THE FOOTHILLS MIXING OUT THIS EVENING AFTER
SUNSET...WHICH WOULD STILL WARM THEM UP A BIT...BUT MORE SO INTO THE
MID 40S.  AREAS ALONG THE SOUTHERN FOOTHILLS LIKE CONDON AND FOSSIL
WILL LIKELY BE MOSTLY CLEAR AND MILD AGAIN...SO LONG AS THE
FOG/STRATUS DECK DOES NOT EXPAND.  CENTRAL OREGON AND THE JOHN DAY
VALLEY SHOULD ALL BE MILD AS WELL AGAIN TODAY WITH PARTLY CLOUDY
SKIES.  THE WASHINGTON BASIN MAY IMPROVE...BUT THE CONFIDENCE IS
LOWEST FOR THIS AREA.  FORECASTING HIGH TEMPERATURES ARE VERY
DIFFICULT IN THESE SITUATIONS...AND LATE MORNING TO EARLY AFTERNOON
UPDATES MAY BE NEEDED...DEPENDING ON THE CHANGES.  WEBER

&&

.PREV DISC... /ISSUED 349 AM PST TUE JAN 27 2015/

SHORT TERM...TODAY THROUGH THURSDAY AFTERNOON...INCREASING MID AND
UPPER LEVEL CLOUDS STREAMING THROUGH THE MID/UPPER LEVEL RIDGE
TODAY AS A RESULT OF A WEAK UPPER LEVEL DISTURBANCE MOVING THROUGH
THE RIDGE. MEANWHILE THE LOW STRATUS CLOUDS AND FOG WILL PERSIST
ACROSS THE LOWER COLUMBIA BASIN. A DENSE FOG ADVISORY REMAINS IN
EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA BASIN, ADJACENT
VALLEYS AND THE FOOTHILLS OF THE BLUE MOUNTAINS. EXPECT LITTLE
SCOURING OUT OF THE LOW CLOUDS AND FOG. ANOTHER VERY WEAK SYSTEM
MOVES THROUGH THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY FOR A
SLIGHT CHANCE OF RAIN IN THE BLUE MOUNTAINS AN WALLOWA COUNTY.
POLAN

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...UPPER LEVEL HIGH
PRESSURE WILL LINGER OVER THE REGION THURSDAY NIGHT INTO SATURDAY.
THUS EXPECT MAINLY DRY CONDITIONS. ALSO FOG AND LOW CLOUDINESS WILL
CONTINUE TO IMPACT LOWER ELEVATIONS AREAS (GENERALLY BELOW 3000 FT
MSL) AND A FEW HIGH ELEVATION VALLEYS. HIGH TEMPS ABOVE 3000 FT WILL
CONTINUE MILD, BUT HIGH TEMPS BELOW 3000 FT WILL BE SEASONALLY COOL.
PACIFIC SYSTEMS LOOK TO FLATTEN THE RIDGE SUNDAY INTO MONDAY. THUS
EXPECT CHANCES FOR PRECIPITATION TO RETURN TO THE REGION. AT THIS
TIME SNOW LEVELS LOOK TO LOWER TO BETWEEN 2500 AND 4000 FT MSL
OVERNIGHT, BUT SHOULD BE A BIT HIGHER DURING THE LATE MORNING AND
AFTERNOON SUNDAY AND MONDAY. SHOULD SEE SOME INCREASE IN WINDS
ACROSS THE BASIN BY MONDAY. 90

AVIATION...PREVIOUS DISCUSSION...12Z TAFS...IFR, LIFR AND VLIFR
CONDITIONS WILL CONTINUE THROUGH AT LEAST THIS MORNING AT KDLS,
KPDT, KYKM, KALW AND KPSC. DAYTIME HEATING AND/OR WEAK LIFT DUE TO A
WEAK SYSTEM MOVING ACROSS THE AREA WILL CAUSE VARYING DEGREES OF
IMPROVEMENT DURING THE AFTERNOON AND EVENING AT THESE SITES. KRDM
AND KBDN WILL REMAIN VFR WITH CIGS LOWERING TO 7-8000 FT AGL BY
EVENING. WINDS WILL MAINLY RUN 10 KTS OR LESS THROUGH THE PERIOD. 90

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  35  40  35 /  10   0   0  10
ALW  47  35  41  35 /  10  10  10  10
PSC  44  34  42  35 /  10   0   0  10
YKM  38  30  38  33 /  10  10   0   0
HRI  40  35  42  36 /  10  10   0  10
ELN  46  32  39  33 /  10  10   0  10
RDM  60  34  55  33 /   0   0  10  10
LGD  52  36  49  31 /   0  10  10  10
GCD  54  35  51  34 /  10  10  10  10
DLS  54  38  45  39 /  10  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL NOON PST TODAY ORZ041-044-507-508-510.

WA...DENSE FOG ADVISORY UNTIL NOON PST TODAY WAZ024-026>029-521.

&&

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

$$

89/90/90










000
FXUS66 KPDT 271659
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
859 AM PST TUE JAN 27 2015

.UPDATE...HIGH PRESSURE CURRENTLY OVER THE AREA WILL BEGIN TO BREAK
DOWN TODAY AS A WEATHER SYSTEM FROM THE SOUTH AND A WEAK SYSTEM FROM
THE WEST COLLIDES WITH THE AREA.  OVERALL THE MODELS AGREE WITH
COLDER AIR ALOFT MOVING IN AND BREAKING THE INVERSION DOWN OVER THE
VALLEYS.  THE ISSUE IS THE TIMING OF THIS BREAK DOWN.  MOST MODELS
WANT TO MIX THINGS OUT ACROSS THE LOWER ELEVATIONS AND HAVE THE
TYPICAL COLD SPOTS LIKE PENDLETON...HERMISTON...YAKIMA...AND THE
TRI-CITIES WARM UP INTO THE UPPER 40S TO MID 50S.  WHILE THIS CAN
NOT BE NOT RULED OUT...CONFIDENCE IS VERY LOW THAT THE MIXING
WILL BE STRONG ENOUGH TO MAKE THIS HAPPEN.  OVERALL...HAVE GONE WITH
MOST AREAS ALONG THE FOOTHILLS MIXING OUT THIS EVENING AFTER
SUNSET...WHICH WOULD STILL WARM THEM UP A BIT...BUT MORE SO INTO THE
MID 40S.  AREAS ALONG THE SOUTHERN FOOTHILLS LIKE CONDON AND FOSSIL
WILL LIKELY BE MOSTLY CLEAR AND MILD AGAIN...SO LONG AS THE
FOG/STRATUS DECK DOES NOT EXPAND.  CENTRAL OREGON AND THE JOHN DAY
VALLEY SHOULD ALL BE MILD AS WELL AGAIN TODAY WITH PARTLY CLOUDY
SKIES.  THE WASHINGTON BASIN MAY IMPROVE...BUT THE CONFIDENCE IS
LOWEST FOR THIS AREA.  FORECASTING HIGH TEMPERATURES ARE VERY
DIFFICULT IN THESE SITUATIONS...AND LATE MORNING TO EARLY AFTERNOON
UPDATES MAY BE NEEDED...DEPENDING ON THE CHANGES.  WEBER

&&

.PREV DISC... /ISSUED 349 AM PST TUE JAN 27 2015/

SHORT TERM...TODAY THROUGH THURSDAY AFTERNOON...INCREASING MID AND
UPPER LEVEL CLOUDS STREAMING THROUGH THE MID/UPPER LEVEL RIDGE
TODAY AS A RESULT OF A WEAK UPPER LEVEL DISTURBANCE MOVING THROUGH
THE RIDGE. MEANWHILE THE LOW STRATUS CLOUDS AND FOG WILL PERSIST
ACROSS THE LOWER COLUMBIA BASIN. A DENSE FOG ADVISORY REMAINS IN
EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA BASIN, ADJACENT
VALLEYS AND THE FOOTHILLS OF THE BLUE MOUNTAINS. EXPECT LITTLE
SCOURING OUT OF THE LOW CLOUDS AND FOG. ANOTHER VERY WEAK SYSTEM
MOVES THROUGH THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY FOR A
SLIGHT CHANCE OF RAIN IN THE BLUE MOUNTAINS AN WALLOWA COUNTY.
POLAN

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...UPPER LEVEL HIGH
PRESSURE WILL LINGER OVER THE REGION THURSDAY NIGHT INTO SATURDAY.
THUS EXPECT MAINLY DRY CONDITIONS. ALSO FOG AND LOW CLOUDINESS WILL
CONTINUE TO IMPACT LOWER ELEVATIONS AREAS (GENERALLY BELOW 3000 FT
MSL) AND A FEW HIGH ELEVATION VALLEYS. HIGH TEMPS ABOVE 3000 FT WILL
CONTINUE MILD, BUT HIGH TEMPS BELOW 3000 FT WILL BE SEASONALLY COOL.
PACIFIC SYSTEMS LOOK TO FLATTEN THE RIDGE SUNDAY INTO MONDAY. THUS
EXPECT CHANCES FOR PRECIPITATION TO RETURN TO THE REGION. AT THIS
TIME SNOW LEVELS LOOK TO LOWER TO BETWEEN 2500 AND 4000 FT MSL
OVERNIGHT, BUT SHOULD BE A BIT HIGHER DURING THE LATE MORNING AND
AFTERNOON SUNDAY AND MONDAY. SHOULD SEE SOME INCREASE IN WINDS
ACROSS THE BASIN BY MONDAY. 90

AVIATION...PREVIOUS DISCUSSION...12Z TAFS...IFR, LIFR AND VLIFR
CONDITIONS WILL CONTINUE THROUGH AT LEAST THIS MORNING AT KDLS,
KPDT, KYKM, KALW AND KPSC. DAYTIME HEATING AND/OR WEAK LIFT DUE TO A
WEAK SYSTEM MOVING ACROSS THE AREA WILL CAUSE VARYING DEGREES OF
IMPROVEMENT DURING THE AFTERNOON AND EVENING AT THESE SITES. KRDM
AND KBDN WILL REMAIN VFR WITH CIGS LOWERING TO 7-8000 FT AGL BY
EVENING. WINDS WILL MAINLY RUN 10 KTS OR LESS THROUGH THE PERIOD. 90

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  41  35  40  35 /  10   0   0  10
ALW  47  35  41  35 /  10  10  10  10
PSC  44  34  42  35 /  10   0   0  10
YKM  38  30  38  33 /  10  10   0   0
HRI  40  35  42  36 /  10  10   0  10
ELN  46  32  39  33 /  10  10   0  10
RDM  60  34  55  33 /   0   0  10  10
LGD  52  36  49  31 /   0  10  10  10
GCD  54  35  51  34 /  10  10  10  10
DLS  54  38  45  39 /  10  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL NOON PST TODAY ORZ041-044-507-508-510.

WA...DENSE FOG ADVISORY UNTIL NOON PST TODAY WAZ024-026>029-521.

&&

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

$$

89/90/90









000
FXUS66 KPDT 271149 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
349 AM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH THURSDAY AFTERNOON...INCREASING MID AND
UPPER LEVEL CLOUDS STREAMING THROUGH THE MID/UPPER LEVEL RIDGE
TODAY AS A RESULT OF A WEAK UPPER LEVEL DISTURBANCE MOVING THROUGH
THE RIDGE. MEANWHILE THE LOW STRATUS CLOUDS AND FOG WILL PERSIST
ACROSS THE LOWER COLUMBIA BASIN. A DENSE FOG ADVISORY REMAINS IN
EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA BASIN, ADJACENT
VALLEYS AND THE FOOTHILLS OF THE BLUE MOUNTAINS. EXPECT LITTLE
SCOURING OUT OF THE LOW CLOUDS AND FOG. ANOTHER VERY WEAK SYSTEM
MOVES THROUGH THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY FOR A
SLIGHT CHANCE OF RAIN IN THE BLUE MOUNTAINS AN WALLOWA COUNTY.
POLAN

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...UPPER LEVEL HIGH
PRESSURE WILL LINGER OVER THE REGION THURSDAY NIGHT INTO SATURDAY.
THUS EXPECT MAINLY DRY CONDITIONS. ALSO FOG AND LOW CLOUDINESS WILL
CONTINUE TO IMPACT LOWER ELEVATIONS AREAS (GENERALLY BELOW 3000 FT
MSL) AND A FEW HIGH ELEVATION VALLEYS. HIGH TEMPS ABOVE 3000 FT WILL
CONTINUE MILD, BUT HIGH TEMPS BELOW 3000 FT WILL BE SEASONALLY COOL.
PACIFIC SYSTEMS LOOK TO FLATTEN THE RIDGE SUNDAY INTO MONDAY. THUS
EXPECT CHANCES FOR PRECIPITATION TO RETURN TO THE REGION. AT THIS
TIME SNOW LEVELS LOOK TO LOWER TO BETWEEN 2500 AND 4000 FT MSL
OVERNIGHT, BUT SHOULD BE A BIT HIGHER DURING THE LATE MORNING AND
AFTERNOON SUNDAY AND MONDAY. SHOULD SEE SOME INCREASE IN WINDS
ACROSS THE BASIN BY MONDAY. 90

&&

.AVIATION...12Z TAFS...IFR, LIFR AND VLIFR CONDITIONS WILL CONTINUE
THROUGH AT LEAST THIS MORNING AT KDLS, KPDT, KYKM, KALW AND KPSC.
DAYTIME HEATING AND/OR WEAK LIFT DUE TO A WEAK SYSTEM MOVING ACROSS
THE AREA WILL CAUSE VARYING DEGREES OF IMPROVEMENT DURING THE
AFTERNOON AND EVENING AT THESE SITES. KRDM AND KBDN WILL REMAIN VFR
WITH CIGS LOWERING TO 7-8000 FT AGL BY EVENING. WINDS WILL MAINLY
RUN 10 KTS OR LESS THROUGH THE PERIOD. 90

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  35  40  35 /   0   0   0  10
ALW  39  35  41  35 /   0  10  10  10
PSC  41  34  42  35 /   0   0   0  10
YKM  36  30  38  33 /   0  10   0   0
HRI  40  35  42  36 /   0  10   0  10
ELN  39  32  39  33 /  10  10   0  10
RDM  60  34  55  33 /   0   0  10  10
LGD  51  36  49  31 /   0  10  10  10
GCD  54  35  51  34 /  10  10  10  10
DLS  45  38  45  39 /  10  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL NOON PST TODAY ORZ041-044-507-508-510.

WA...DENSE FOG ADVISORY UNTIL NOON PST TODAY WAZ024-026>029-521.

&&

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

$$

99/90/90







000
FXUS66 KPDT 271149 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
349 AM PST TUE JAN 27 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH THURSDAY AFTERNOON...INCREASING MID AND
UPPER LEVEL CLOUDS STREAMING THROUGH THE MID/UPPER LEVEL RIDGE
TODAY AS A RESULT OF A WEAK UPPER LEVEL DISTURBANCE MOVING THROUGH
THE RIDGE. MEANWHILE THE LOW STRATUS CLOUDS AND FOG WILL PERSIST
ACROSS THE LOWER COLUMBIA BASIN. A DENSE FOG ADVISORY REMAINS IN
EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA BASIN, ADJACENT
VALLEYS AND THE FOOTHILLS OF THE BLUE MOUNTAINS. EXPECT LITTLE
SCOURING OUT OF THE LOW CLOUDS AND FOG. ANOTHER VERY WEAK SYSTEM
MOVES THROUGH THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY FOR A
SLIGHT CHANCE OF RAIN IN THE BLUE MOUNTAINS AN WALLOWA COUNTY.
POLAN

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...UPPER LEVEL HIGH
PRESSURE WILL LINGER OVER THE REGION THURSDAY NIGHT INTO SATURDAY.
THUS EXPECT MAINLY DRY CONDITIONS. ALSO FOG AND LOW CLOUDINESS WILL
CONTINUE TO IMPACT LOWER ELEVATIONS AREAS (GENERALLY BELOW 3000 FT
MSL) AND A FEW HIGH ELEVATION VALLEYS. HIGH TEMPS ABOVE 3000 FT WILL
CONTINUE MILD, BUT HIGH TEMPS BELOW 3000 FT WILL BE SEASONALLY COOL.
PACIFIC SYSTEMS LOOK TO FLATTEN THE RIDGE SUNDAY INTO MONDAY. THUS
EXPECT CHANCES FOR PRECIPITATION TO RETURN TO THE REGION. AT THIS
TIME SNOW LEVELS LOOK TO LOWER TO BETWEEN 2500 AND 4000 FT MSL
OVERNIGHT, BUT SHOULD BE A BIT HIGHER DURING THE LATE MORNING AND
AFTERNOON SUNDAY AND MONDAY. SHOULD SEE SOME INCREASE IN WINDS
ACROSS THE BASIN BY MONDAY. 90

&&

.AVIATION...12Z TAFS...IFR, LIFR AND VLIFR CONDITIONS WILL CONTINUE
THROUGH AT LEAST THIS MORNING AT KDLS, KPDT, KYKM, KALW AND KPSC.
DAYTIME HEATING AND/OR WEAK LIFT DUE TO A WEAK SYSTEM MOVING ACROSS
THE AREA WILL CAUSE VARYING DEGREES OF IMPROVEMENT DURING THE
AFTERNOON AND EVENING AT THESE SITES. KRDM AND KBDN WILL REMAIN VFR
WITH CIGS LOWERING TO 7-8000 FT AGL BY EVENING. WINDS WILL MAINLY
RUN 10 KTS OR LESS THROUGH THE PERIOD. 90

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  35  40  35 /   0   0   0  10
ALW  39  35  41  35 /   0  10  10  10
PSC  41  34  42  35 /   0   0   0  10
YKM  36  30  38  33 /   0  10   0   0
HRI  40  35  42  36 /   0  10   0  10
ELN  39  32  39  33 /  10  10   0  10
RDM  60  34  55  33 /   0   0  10  10
LGD  51  36  49  31 /   0  10  10  10
GCD  54  35  51  34 /  10  10  10  10
DLS  45  38  45  39 /  10  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL NOON PST TODAY ORZ041-044-507-508-510.

WA...DENSE FOG ADVISORY UNTIL NOON PST TODAY WAZ024-026>029-521.

&&

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

$$

99/90/90








000
FXUS66 KPDT 271103
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST TUE JAN 27 2015

.SHORT TERM...TODAY THROUGH THURSDAY AFTERNOON...INCREASING MID AND
UPPER LEVEL CLOUDS STREAMING THROUGH THE MID/UPPER LEVEL RIDGE
TODAY AS A RESULT OF A WEAK UPPER LEVEL DISTURBANCE MOVING THROUGH
THE RIDGE. MEANWHILE THE LOW STRATUS CLOUDS AND FOG WILL PERSIST
ACROSS THE LOWER COLUMBIA BASIN. A DENSE FOG ADVISORY REMAINS IN
EFFECT UNTIL NOON TODAY FOR THE LOWER COLUMBIA BASIN, ADJACENT
VALLEYS AND THE FOOTHILLS OF THE BLUE MOUNTAINS. EXPECT LITTLE
SCOURING OUT OF THE LOW CLOUDS AND FOG. ANOTHER VERY WEAK SYSTEM
MOVES THROUGH THE FORECAST AREA WEDNESDAY NIGHT AND THURSDAY FOR A
SLIGHT CHANCE OF RAIN IN THE BLUE MOUNTAINS AN WALLOWA COUNTY.
POLAN

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...UPPER LEVEL HIGH
PRESSURE WILL LINGER OVER THE REGION THURSDAY NIGHT INTO SATURDAY.
THUS EXPECT MAINLY DRY CONDITIONS. ALSO FOG AND LOW CLOUDINESS WILL
CONTINUE TO IMPACT LOWER ELEVATIONS AREAS (GENERALLY BELOW 3000 FT
MSL) AND A FEW HIGH ELEVATION VALLEYS. HIGH TEMPS ABOVE 3000 FT WILL
CONTINUE MILD, BUT HIGH TEMPS BELOW 3000 FT WILL BE SEASONALLY COOL.
PACIFIC SYSTEMS LOOK TO FLATTEN THE RIDGE SUNDAY INTO MONDAY. THUS
EXPECT CHANCES FOR PRECIPITATION TO RETURN TO THE REGION. AT THIS
TIME SNOW LEVELS LOOK TO LOWER TO BETWEEN 2500 AND 4000 FT MSL
OVERNIGHT, BUT SHOULD BE A BIT HIGHER DURING THE LATE MORNING AND
AFTERNOON SUNDAY AND MONDAY. SHOULD SEE SOME INCREASE IN WINDS
ACROSS THE BASIN BY MONDAY. 90

&&

.AVIATION...PREVIOUS DISCUSSION...06Z TAFS...LOW STRATUS AND FOG
WILL CONTINUE THRU 28/03Z FOR KDLS, KPDT, KYKM ,KALW AND KPSC. AS A
RESULT, LIFR TO IFR CONDITIONS WILL PREVAIL AT THE AFOREMENTIONED
TAF SITES. KRDM AND KBDN WILL HAVE CIG AOA 10K FT AGL AS MID AND
UPPER LEVEL CLOUDS MOVE IN AHEAD OF AN UPPER LOW AND PASSING TROUGH.
BEST CHANCE OF PCPN IS EXPECTED ALONG THE CASCADES, WITH VERY LITTLE
CHANCE AT TAF SITES. PASSING WEATHER SYSTEMS WILL HELP FLATTEN THE
RIDGE AND ERODE THE INVERSION SOME WITH WESTERLY WINDS BTWN 5 TO 10
KTS ACROSS WESTERN PORTION OF THE LOWER COLUMBIA BASIN. THE FOG MAY
BECOME BANKED AGAINST THE BLUE MOUNTAINS AND KEEP KALW UNDER LIFR TO
IFR CONDITIONS AS A RESULT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  35  40  35 /   0   0   0  10
ALW  39  35  41  35 /   0  10  10  10
PSC  41  34  42  35 /   0   0   0  10
YKM  36  30  38  33 /   0  10   0   0
HRI  40  35  42  36 /   0  10   0  10
ELN  39  32  39  33 /  10  10   0  10
RDM  60  34  55  33 /   0   0  10  10
LGD  51  36  49  31 /   0  10  10  10
GCD  54  35  51  34 /  10  10  10  10
DLS  45  38  45  39 /  10  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...DENSE FOG ADVISORY UNTIL NOON PST TODAY ORZ041-044-507-508-510.

WA...DENSE FOG ADVISORY UNTIL NOON PST TODAY WAZ024-026>029-521.

&&

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

$$

99/90/90









    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities