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000
FXUS66 KPDT 241727 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
927 AM PST MON NOV 24 2014

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH TUESDAY...A RIDGE OF HIGH PRESSURE IS
BUILDING OVER THE EASTERN PACIFIC OCEAN. THIS WILL LIFT A WARM FRONT
OVER THE PACIFIC NORTHWEST STARTING LATE TODAY AND INTO TUESDAY. THE
MAIN SURGE OF MOISTURE ASSOCIATED WITH THIS WILL BE FOCUSED OVER
WASHINGTON AND NORTHERN OREGON...ESPECIALLY THE CASCADE MOUNTAINS
AND THE MOUNTAINS OF NORTHEAST OREGON/SOUTHEAST WASHINGTON. THESE
AREAS COULD SEE 1 TO 3 INCHES OF RAINFALL OVER THE NEXT 24 TO 36
HOURS WHILE LOWER ELEVATIONS AROUND THE BASIN WILL SEE A TENTH TO A
QUARTER OF AN INCH. THE FOOTHILLS OF THE BLUE MOUNTAINS WILL BE IN
BETWEEN WITH HALF AN INCH TO NEAR AN INCH. ALL THIS MEANS THAT AREA
STREAMS AND RIVERS WILL BE ON THE RISE. NO FLOODING IS EXPECTED AT
THIS POINT ON THE MAIN RIVERS BUT WILL NEED TO MONITOR THE SMALL
STREAMS AND CREEKS FEEDING THE MAIN RIVERS FOR RAPID RISES OVERNIGHT
AND INTO TUESDAY. SNOW LEVELS WILL INITIALLY BE AROUND 5000 FEET
LATE TODAY BUT WILL RISE RAPIDLY TO AROUND 8000 FEET ON TUESDAY. THE
WARM FRONT WILL ALSO BRING INCREASING WINDS OVERNIGHT AND TUESDAY
WHICH WILL AID IN BOOSTING TEMPERATURES.

&&

.AVIATION...18Z TAFS...VFR CONDITIONS ARE EXPECTED OVER THE NEXT 12
HOURS...WITH MVFR/IFR CONDITIONS TO FOLLOW FROM 06Z-18Z TUESDAY.
RAIN WILL BEGIN TO ENTER TAF SITES AFTER 3Z AND MAY PERSIST ON AND
OFF AT SOME TAF SITES THROUGH 18Z TOMORROW.  EXPECT POTENTIAL
MVFR/IFR CONDITIONS AS CIGS AND VISIBILITIES LOWER THIS EVENING AND
TUESDAY MORNING. WINDS WILL GENERALLY BE 5-15KTS. WEBER    WEBER
&&

.PREV DISC... /ISSUED 440 AM PST MON NOV 24 2014/

SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  51  44  57  44 /  10  60  60  10
ALW  51  45  57  47 /  10  70  60  10
PSC  50  43  56  46 /  10  60  20  10
YKM  45  37  52  39 /  10  50  10  10
HRI  51  44  58  45 /  10  60  20  10
ELN  46  36  50  38 /  10  60  20  30
RDM  48  39  58  34 /  10  20  10   0
LGD  44  40  50  37 /  10  90  80  30
GCD  44  38  51  33 /  10  50  30  20
DLS  51  44  58  43 /  10  60  20  10

&&

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

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

$$

91/89/89








000
FXUS66 KPDT 241727 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
927 AM PST MON NOV 24 2014

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH TUESDAY...A RIDGE OF HIGH PRESSURE IS
BUILDING OVER THE EASTERN PACIFIC OCEAN. THIS WILL LIFT A WARM FRONT
OVER THE PACIFIC NORTHWEST STARTING LATE TODAY AND INTO TUESDAY. THE
MAIN SURGE OF MOISTURE ASSOCIATED WITH THIS WILL BE FOCUSED OVER
WASHINGTON AND NORTHERN OREGON...ESPECIALLY THE CASCADE MOUNTAINS
AND THE MOUNTAINS OF NORTHEAST OREGON/SOUTHEAST WASHINGTON. THESE
AREAS COULD SEE 1 TO 3 INCHES OF RAINFALL OVER THE NEXT 24 TO 36
HOURS WHILE LOWER ELEVATIONS AROUND THE BASIN WILL SEE A TENTH TO A
QUARTER OF AN INCH. THE FOOTHILLS OF THE BLUE MOUNTAINS WILL BE IN
BETWEEN WITH HALF AN INCH TO NEAR AN INCH. ALL THIS MEANS THAT AREA
STREAMS AND RIVERS WILL BE ON THE RISE. NO FLOODING IS EXPECTED AT
THIS POINT ON THE MAIN RIVERS BUT WILL NEED TO MONITOR THE SMALL
STREAMS AND CREEKS FEEDING THE MAIN RIVERS FOR RAPID RISES OVERNIGHT
AND INTO TUESDAY. SNOW LEVELS WILL INITIALLY BE AROUND 5000 FEET
LATE TODAY BUT WILL RISE RAPIDLY TO AROUND 8000 FEET ON TUESDAY. THE
WARM FRONT WILL ALSO BRING INCREASING WINDS OVERNIGHT AND TUESDAY
WHICH WILL AID IN BOOSTING TEMPERATURES.

&&

.AVIATION...18Z TAFS...VFR CONDITIONS ARE EXPECTED OVER THE NEXT 12
HOURS...WITH MVFR/IFR CONDITIONS TO FOLLOW FROM 06Z-18Z TUESDAY.
RAIN WILL BEGIN TO ENTER TAF SITES AFTER 3Z AND MAY PERSIST ON AND
OFF AT SOME TAF SITES THROUGH 18Z TOMORROW.  EXPECT POTENTIAL
MVFR/IFR CONDITIONS AS CIGS AND VISIBILITIES LOWER THIS EVENING AND
TUESDAY MORNING. WINDS WILL GENERALLY BE 5-15KTS. WEBER    WEBER
&&

.PREV DISC... /ISSUED 440 AM PST MON NOV 24 2014/

SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  51  44  57  44 /  10  60  60  10
ALW  51  45  57  47 /  10  70  60  10
PSC  50  43  56  46 /  10  60  20  10
YKM  45  37  52  39 /  10  50  10  10
HRI  51  44  58  45 /  10  60  20  10
ELN  46  36  50  38 /  10  60  20  30
RDM  48  39  58  34 /  10  20  10   0
LGD  44  40  50  37 /  10  90  80  30
GCD  44  38  51  33 /  10  50  30  20
DLS  51  44  58  43 /  10  60  20  10

&&

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

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

$$

91/89/89







000
FXUS66 KPDT 241701
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
900 AM PST MON NOV 24 2014

.SHORT TERM...TODAY THROUGH TUESDAY...A RIDGE OF HIGH PRESSURE IS
BUILDING OVER THE EASTERN PACIFIC OCEAN. THIS WILL LIFT A WARM FRONT
OVER THE PACIFIC NORTHWEST STARTING LATE TODAY AND INTO TUESDAY. THE
MAIN SURGE OF MOISTURE ASSOCIATED WITH THIS WILL BE FOCUSED OVER
WASHINGTON AND NORTHERN OREGON...ESPECIALLY THE CASCADE MOUNTAINS
AND THE MOUNTAINS OF NORTHEAST OREGON/SOUTHEAST WASHINGTON. THESE
AREAS COULD SEE 1 TO 3 INCHES OF RAINFALL OVER THE NEXT 24 TO 36
HOURS WHILE LOWER ELEVATIONS AROUND THE BASIN WILL SEE A TENTH TO A
QUARTER OF AN INCH. THE FOOTHILLS OF THE BLUE MOUNTAINS WILL BE IN
BETWEEN WITH HALF AN INCH TO NEAR AN INCH. ALL THIS MEANS THAT AREA
STREAMS AND RIVERS WILL BE ON THE RISE. NO FLOODING IS EXPECTED AT
THIS POINT ON THE MAIN RIVERS BUT WILL NEED TO MONITOR THE SMALL
STREAMS AND CREEKS FEEDING THE MAIN RIVERS FOR RAPID RISES OVERNIGHT
AND INTO TUESDAY. SNOW LEVELS WILL INITIALLY BE AROUND 5000 FEET
LATE TODAY BUT WILL RISE RAPIDLY TO AROUND 8000 FEET ON TUESDAY. THE
WARM FRONT WILL ALSO BRING INCREASING WINDS OVERNIGHT AND TUESDAY
WHICH WILL AID IN BOOSTING TEMPERATURES.


&&

.PREV DISC... /ISSUED 440 AM PST MON NOV 24 2014/

SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

AVIATION...12Z TAFS...ALL TAF SITES WILL HAVE VFR CONDITIONS
THROUGH THE PERIOD. THERE IS SOME POTENTIAL FOR SCATTERED LOW CLOUDS
AND/OR MIST TO FORM FROM 12Z THROUGH 17Z THIS MORNING AT A FEW TAF
SITES. DEWPOINT SPREADS ARE MARGINAL FOR THIS TO OCCUR, THEREFORE
HAVE ONLY FEW OR SCT LOW CLOUDS IN A FEW TAFS. OTHERWISE, GENERALLY
BENIGN CONDITIONS EXPECTED THROUGH THIS AFTERNOON. AFTER 00Z/25TH
ANOTHER SYSTEM APPROACHES THE AREA WITH A MID LEVEL CLOUD DECK 4-8K
FT AGL AND -SHRA BECOMING POSSIBLE. WINDS ARE FORECAST TO REMAIN AOB
10 KTS AT ALL TAF SITES THROUGH 25/00Z. AFTER 25/00Z WINDS WILL
BEGIN TO INCREASE OUT OF THE SOUTH AT MOST TAF SITES.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  51  44  57  44 /  10  60  60  10
ALW  51  45  57  47 /  10  70  60  10
PSC  50  43  56  46 /  10  60  20  10
YKM  45  37  52  39 /  10  50  10  10
HRI  51  44  58  45 /  10  60  20  10
ELN  46  36  50  38 /  10  60  20  30
RDM  48  39  58  34 /  10  20  10   0
LGD  44  40  50  37 /  10  90  80  30
GCD  44  38  51  33 /  10  50  30  20
DLS  51  44  58  43 /  10  60  20  10

&&

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

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

$$

91/89/89









000
FXUS66 KPDT 241701
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
900 AM PST MON NOV 24 2014

.SHORT TERM...TODAY THROUGH TUESDAY...A RIDGE OF HIGH PRESSURE IS
BUILDING OVER THE EASTERN PACIFIC OCEAN. THIS WILL LIFT A WARM FRONT
OVER THE PACIFIC NORTHWEST STARTING LATE TODAY AND INTO TUESDAY. THE
MAIN SURGE OF MOISTURE ASSOCIATED WITH THIS WILL BE FOCUSED OVER
WASHINGTON AND NORTHERN OREGON...ESPECIALLY THE CASCADE MOUNTAINS
AND THE MOUNTAINS OF NORTHEAST OREGON/SOUTHEAST WASHINGTON. THESE
AREAS COULD SEE 1 TO 3 INCHES OF RAINFALL OVER THE NEXT 24 TO 36
HOURS WHILE LOWER ELEVATIONS AROUND THE BASIN WILL SEE A TENTH TO A
QUARTER OF AN INCH. THE FOOTHILLS OF THE BLUE MOUNTAINS WILL BE IN
BETWEEN WITH HALF AN INCH TO NEAR AN INCH. ALL THIS MEANS THAT AREA
STREAMS AND RIVERS WILL BE ON THE RISE. NO FLOODING IS EXPECTED AT
THIS POINT ON THE MAIN RIVERS BUT WILL NEED TO MONITOR THE SMALL
STREAMS AND CREEKS FEEDING THE MAIN RIVERS FOR RAPID RISES OVERNIGHT
AND INTO TUESDAY. SNOW LEVELS WILL INITIALLY BE AROUND 5000 FEET
LATE TODAY BUT WILL RISE RAPIDLY TO AROUND 8000 FEET ON TUESDAY. THE
WARM FRONT WILL ALSO BRING INCREASING WINDS OVERNIGHT AND TUESDAY
WHICH WILL AID IN BOOSTING TEMPERATURES.


&&

.PREV DISC... /ISSUED 440 AM PST MON NOV 24 2014/

SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

AVIATION...12Z TAFS...ALL TAF SITES WILL HAVE VFR CONDITIONS
THROUGH THE PERIOD. THERE IS SOME POTENTIAL FOR SCATTERED LOW CLOUDS
AND/OR MIST TO FORM FROM 12Z THROUGH 17Z THIS MORNING AT A FEW TAF
SITES. DEWPOINT SPREADS ARE MARGINAL FOR THIS TO OCCUR, THEREFORE
HAVE ONLY FEW OR SCT LOW CLOUDS IN A FEW TAFS. OTHERWISE, GENERALLY
BENIGN CONDITIONS EXPECTED THROUGH THIS AFTERNOON. AFTER 00Z/25TH
ANOTHER SYSTEM APPROACHES THE AREA WITH A MID LEVEL CLOUD DECK 4-8K
FT AGL AND -SHRA BECOMING POSSIBLE. WINDS ARE FORECAST TO REMAIN AOB
10 KTS AT ALL TAF SITES THROUGH 25/00Z. AFTER 25/00Z WINDS WILL
BEGIN TO INCREASE OUT OF THE SOUTH AT MOST TAF SITES.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  51  44  57  44 /  10  60  60  10
ALW  51  45  57  47 /  10  70  60  10
PSC  50  43  56  46 /  10  60  20  10
YKM  45  37  52  39 /  10  50  10  10
HRI  51  44  58  45 /  10  60  20  10
ELN  46  36  50  38 /  10  60  20  30
RDM  48  39  58  34 /  10  20  10   0
LGD  44  40  50  37 /  10  90  80  30
GCD  44  38  51  33 /  10  50  30  20
DLS  51  44  58  43 /  10  60  20  10

&&

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

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

$$

91/89/89










000
FXUS66 KPDT 241242 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
440 AM PST MON NOV 24 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

&&

.AVIATION...12Z TAFS...ALL TAF SITES WILL HAVE VFR CONDITIONS
THROUGH THE PERIOD. THERE IS SOME POTENTIAL FOR SCATTERED LOW CLOUDS
AND/OR MIST TO FORM FROM 12Z THROUGH 17Z THIS MORNING AT A FEW TAF
SITES. DEWPOINT SPREADS ARE MARGINAL FOR THIS TO OCCUR, THEREFORE
HAVE ONLY FEW OR SCT LOW CLOUDS IN A FEW TAFS. OTHERWISE, GENERALLY
BENIGN CONDITIONS EXPECTED THROUGH THIS AFTERNOON. AFTER 00Z/25TH
ANOTHER SYSTEM APPROACHES THE AREA WITH A MID LEVEL CLOUD DECK 4-8K
FT AGL AND -SHRA BECOMING POSSIBLE. WINDS ARE FORECAST TO REMAIN AOB
10 KTS AT ALL TAF SITES THROUGH 25/00Z. AFTER 25/00Z WINDS WILL
BEGIN TO INCREASE OUT OF THE SOUTH AT MOST TAF SITES.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  53  43  58  44 /  10  40  30  10
ALW  53  44  58  47 /  10  40  40  10
PSC  51  41  57  46 /  10  40  30  10
YKM  46  37  52  39 /  10  40  30  10
HRI  54  43  59  45 /  10  40  30  10
ELN  45  35  50  38 /  10  50  40  30
RDM  50  40  59  34 /  10  30  20   0
LGD  46  42  51  37 /  10  60  60  30
GCD  47  34  53  33 /  10  40  30  20
DLS  50  42  56  43 /  10  40  40  10

&&

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

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

$$

94/99/99







000
FXUS66 KPDT 241242 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
440 AM PST MON NOV 24 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

&&

.AVIATION...12Z TAFS...ALL TAF SITES WILL HAVE VFR CONDITIONS
THROUGH THE PERIOD. THERE IS SOME POTENTIAL FOR SCATTERED LOW CLOUDS
AND/OR MIST TO FORM FROM 12Z THROUGH 17Z THIS MORNING AT A FEW TAF
SITES. DEWPOINT SPREADS ARE MARGINAL FOR THIS TO OCCUR, THEREFORE
HAVE ONLY FEW OR SCT LOW CLOUDS IN A FEW TAFS. OTHERWISE, GENERALLY
BENIGN CONDITIONS EXPECTED THROUGH THIS AFTERNOON. AFTER 00Z/25TH
ANOTHER SYSTEM APPROACHES THE AREA WITH A MID LEVEL CLOUD DECK 4-8K
FT AGL AND -SHRA BECOMING POSSIBLE. WINDS ARE FORECAST TO REMAIN AOB
10 KTS AT ALL TAF SITES THROUGH 25/00Z. AFTER 25/00Z WINDS WILL
BEGIN TO INCREASE OUT OF THE SOUTH AT MOST TAF SITES.  POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  53  43  58  44 /  10  40  30  10
ALW  53  44  58  47 /  10  40  40  10
PSC  51  41  57  46 /  10  40  30  10
YKM  46  37  52  39 /  10  40  30  10
HRI  54  43  59  45 /  10  40  30  10
ELN  45  35  50  38 /  10  50  40  30
RDM  50  40  59  34 /  10  30  20   0
LGD  46  42  51  37 /  10  60  60  30
GCD  47  34  53  33 /  10  40  30  20
DLS  50  42  56  43 /  10  40  40  10

&&

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

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

$$

94/99/99








000
FXUS66 KPDT 241100
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST MON NOV 24 2014

.SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

&&

.PREVIOUS AVIATION DISCUSSION...06Z TAFS...KEPT ALL TAF SITES WITH
PREVAILING VFR CONDITIONS THROUGH THE PERIOD. ONLY CAVEAT WILL BE
THE POTENTIAL FOR SOME LOW CLOUDS AND/OR MIST TO FORM MAINLY AFTER
24/9-12Z THROUGH 24/18Z AT SEVERAL TAF SITES. ATMOSPHERIC PARAMETERS
ARE MARGINAL FOR THIS TO OCCUR...THEREFORE FOR THE TIME BEING
INTRODUCED ONLY FEW OR SCT LOW CLOUDS TO THE AFFECTED TAF SITES.
OTHERWISE GENERALLY QUIET WEATHER IS EXPECTED INTO EARLY MONDAY
AFTERNOON. AFTER 25/00Z ANOTHER SYSTEM APPROACHES THE AREA WITH A
MID-LEVEL CLOUD DECK BETWEEN 4-8KFT AGL AND -SHRA BECOMING POSSIBLE.
WINDS ARE FORECAST TO DECREASE BELOW 10KTS AT KPDT BY 24/12Z AND ARE
FORECAST TO REMAIN AOB 10KTS AT ALL OTHER TAF STATIONS THROUGH
25/00Z. AFTER 25/00Z WINDS WILL BEGIN TO INCREASE OUT OF THE SOUTH
AT MOST TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  53  43  58  44 /  10  40  30  10
ALW  53  44  58  47 /  10  40  40  10
PSC  51  41  57  46 /  10  40  30  10
YKM  46  37  52  39 /  10  40  30  10
HRI  54  43  59  45 /  10  40  30  10
ELN  45  35  50  38 /  10  50  40  30
RDM  50  40  59  34 /  10  30  20   0
LGD  46  42  51  37 /  10  60  60  30
GCD  47  34  53  33 /  10  40  30  20
DLS  50  42  56  43 /  10  40  40  10

&&

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

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

$$

94/99/99









000
FXUS66 KPDT 241100
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST MON NOV 24 2014

.SHORT TERM...TODAY THROUGH WEDNESDAY. UPPER LEVEL RIDGE WILL BE
BUILDING OVER THE REGION TODAY AND REMAIN IN PLACE FOR SEVERAL DAYS.
AS THE RIDGE BUILDS IN IT WILL BE ACCOMPANIED BY A WARM FRONT. THIS
WILL BRING INCREASING CLOUDS DURING THE DAY. THERE WILL BE A PERIOD
OF RAIN AS THE FRONT MOVES THROUGH MAINLY THIS AFTERNOON AND
EVENING. SATELLITE SHOWS A GOOD STREAM OF MOISTURE MOVING OVER THE
TOP OF THE RIDGE AND THIS WILL ENHANCE RAINFALL TONIGHT INTO
TUESDAY. EXPECT SIGNIFICANT RAINFALL AMOUNTS OVER THE CASCADES AND
ALSO THE BLUES THROUGH TUESDAY AFTERNOON. THE AIRMASS WILL BE WARM
AND SNOW LEVELS WILL BE HIGH. THE MOISTURE STREAM WILL GET PUSHED
NORTHWARD TUESDAY NIGHT AND PRECIPITATION WILL END. PARTLY CLOUDY
SKIES EXPECTED FOR WEDNESDAY. TEMPERATURES WILL BE WARM THROUGH THE
PERIOD WITH HIGHS IN THE UPPER 40S AND 50S. WINDS WILL BE FAIRLY
LIGHT TODAY THEN INCREASE TONIGHT INTO TUESDAY NIGHT. SHOULD BE
BREEZY TO WINDY FOR MANY LOCATIONS.   94

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...WEDNESDAY NIGHT A
LARGE MID/UPPER LEVEL PACIFIC TROUGH BETWEEN 140-150W AND A SECOND
TROUGH DIGGING SOUTH OVER BRITISH COLUMBIA SET THE STAGE FOR
INCREASING POPS IN MOUNTAINS ON THURSDAY. THESE TWO SYSTEMS COME
INTO PHASE WITH ONE ANOTHER TO USHER IN INCREASING MOISTURE AND
DYNAMIC LIFT ON FRIDAY. SNOW LEVELS LOWER FROM 5000-6000 FEET FRIDAY
TO 2000-4000 FEET FRIDAY NIGHT. OVER THE WEEKEND BOTH SYSTEMS MOVE
ACROSS PACIFIC NORTHWEST FOR A CHANCE OF MAINLY SNOW MIXED WITH SOME
RAIN DURING DAYTIME HOURS.  POLAN

&&

.PREVIOUS AVIATION DISCUSSION...06Z TAFS...KEPT ALL TAF SITES WITH
PREVAILING VFR CONDITIONS THROUGH THE PERIOD. ONLY CAVEAT WILL BE
THE POTENTIAL FOR SOME LOW CLOUDS AND/OR MIST TO FORM MAINLY AFTER
24/9-12Z THROUGH 24/18Z AT SEVERAL TAF SITES. ATMOSPHERIC PARAMETERS
ARE MARGINAL FOR THIS TO OCCUR...THEREFORE FOR THE TIME BEING
INTRODUCED ONLY FEW OR SCT LOW CLOUDS TO THE AFFECTED TAF SITES.
OTHERWISE GENERALLY QUIET WEATHER IS EXPECTED INTO EARLY MONDAY
AFTERNOON. AFTER 25/00Z ANOTHER SYSTEM APPROACHES THE AREA WITH A
MID-LEVEL CLOUD DECK BETWEEN 4-8KFT AGL AND -SHRA BECOMING POSSIBLE.
WINDS ARE FORECAST TO DECREASE BELOW 10KTS AT KPDT BY 24/12Z AND ARE
FORECAST TO REMAIN AOB 10KTS AT ALL OTHER TAF STATIONS THROUGH
25/00Z. AFTER 25/00Z WINDS WILL BEGIN TO INCREASE OUT OF THE SOUTH
AT MOST TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  53  43  58  44 /  10  40  30  10
ALW  53  44  58  47 /  10  40  40  10
PSC  51  41  57  46 /  10  40  30  10
YKM  46  37  52  39 /  10  40  30  10
HRI  54  43  59  45 /  10  40  30  10
ELN  45  35  50  38 /  10  50  40  30
RDM  50  40  59  34 /  10  30  20   0
LGD  46  42  51  37 /  10  60  60  30
GCD  47  34  53  33 /  10  40  30  20
DLS  50  42  56  43 /  10  40  40  10

&&

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

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

$$

94/99/99










000
FXUS66 KPDT 240615 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
1015 PM PST SUN NOV 23 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...EVENING UPDATE...THE REGION WILL REMAIN UNDER A
NORTHWEST UPPER LEVEL FLOW TONIGHT THROUGH MONDAY. THE WAVE THAT
BROUGHT SHOWERS TO PORTIONS OF THE AREA TODAY HAS MOVED EAST. AS A
RESULT SHOWER ACTIVITY HAS BEEN DIMINISHING ACROSS THE AREA. A FEW
BANDS OF LIGHT SHOWERS CONTINUE TO CROSS THE CASCADE CREST AND
AFFECT PARTS OF THE CASCADE EAST SLOPES. THIS PROCESS WILL CONTINUE
THROUGH THE NIGHT, BUT WILL GRADUALLY DECREASE AND END TOWARDS
DAYBREAK. ALSO A FEW BANDS CONTINUE OVER THE INTERIOR MOUNTAINS OF
NORTHEAST OREGON. THESE TOO WILL GRADUALLY DECREASE AND COME TO AN
END OVERNIGHT. STILL EXPECT A MOSTLY DRY DAY MONDAY, THOUGH THE NEXT
SYSTEM IMBEDDED WITHIN THE NORTHWEST UPPER FLOW WILL BEGIN TO SPREAD
PRECIP INTO THE CASCADE EAST SLOPE ZONES DURING THE AFTERNOON. SNOW
LEVELS WILL FALL TO BETWEEN 2000 AND 3500 FEET TONIGHT, THEN RISE
AGAIN MONDAY, RANGING FROM 3500 FEET IN CENTRAL WASHINGTON AND 5000
FEET IN CENTRAL OREGON BY LATE AFTERNOON. LOCALLY BREEZY WINDS WILL
DECREASE OVERNIGHT. CURRENT FORECAST PACKAGE GENERALLY IN GOOD SHAPE
AND ONLY MADE ADJUSTMENTS BASED ON LATEST TRENDS. 90

.LONG TERM...PREVIOUS DISCUSSION...A VERY BUSY EXTENDED AS ACTIVE
WEATHER THREATENS THE HOLIDAY WEEKEND. A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE AREA BY MID WEEK. MOISTURE IS EXPECTED TO
OVERRUN JUST TO THE NORTH OF THE CWA...MAINLY AFFECTING THE SPOKANE
CWA. SLIGHT CHANCE TO CHANCE PRECIPITATION WILL REMAIN OVER THE EAST
SLOPES OF THE WASHINGTON CASCADES AND THE MOUNTAINS OF NORTHEAST
OREGON THROUGH WEDNESDAY NIGHT. A STRONG COLD FRONT MOVING SOUTH
FROM CANADA WILL FLATTEN OUT THE RIDGE OF HIGH PRESSURE THURSDAY...
PROVIDING A MOIST WESTERLY FLOW TO THE AREA FOR THANKSGIVING. RIGHT
NOW HAVE NOT GONE TOO AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS
EXPECTED TO BE ALL RAIN...AND THERE MAY BE A DECENT RAINSHADOW
AFFECT FOR THE BASIN. SO 20-30 PERCENT POPS IN THE FORECAST FOR THE
LOWER ELEVATIONS WITH 30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY. SATURDAY
ONWARD IS WHERE IT GETS INTERESTING. THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL. THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION. CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING. THESE AREAS COULD SEE A RAIN
SNOW MIX...OR POSSIBLY FREEZING RAIN. HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY. BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS. WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.

&&

.AVIATION...06Z TAFS...KEPT ALL TAF SITES WITH PREVAILING VFR
CONDITIONS THROUGH THE PERIOD. ONLY CAVEAT WILL BE THE POTENTIAL FOR
SOME LOW CLOUDS AND/OR MIST TO FORM MAINLY AFTER 24/9-12Z THROUGH
24/18Z AT SEVERAL TAF SITES. ATMOSPHERIC PARAMETERS ARE MARGINAL FOR
THIS TO OCCUR...THEREFORE FOR THE TIME BEING INTRODUCED ONLY FEW OR
SCT LOW CLOUDS TO THE AFFECTED TAF SITES. OTHERWISE GENERALLY QUIET
WEATHER IS EXPECTED INTO EARLY MONDAY AFTERNOON. AFTER 25/00Z
ANOTHER SYSTEM APPROACHES THE AREA WITH A MID-LEVEL CLOUD DECK
BETWEEN 4-8KFT AGL AND -SHRA BECOMING POSSIBLE. WINDS ARE FORECAST
TO DECREASE BELOW 10KTS AT KPDT BY 24/12Z AND ARE FORECAST TO REMAIN
AOB 10KTS AT ALL OTHER TAF STATIONS THROUGH 25/00Z. AFTER 25/00Z
WINDS WILL BEGIN TO INCREASE OUT OF THE SOUTH AT MOST TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  48  40  58 /  20  10  40  30
ALW  37  48  42  60 /  20  10  40  40
PSC  35  48  40  58 /  10  10  40  30
YKM  29  42  33  53 /  10  10  30  30
HRI  36  49  40  58 /  10  10  40  30
ELN  30  42  33  52 /  20  10  40  30
RDM  25  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  60  10  50  60
GCD  30  41  31  55 /  30  10  40  30
DLS  38  51  40  54 /  20  10  40  40

&&

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

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

$$

90/89/77







000
FXUS66 KPDT 240524
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
924 PM PST SUN NOV 23 2014

.SHORT TERM...EVENING UPDATE...THE REGION WILL REMAIN UNDER A
NORTHWEST UPPER LEVEL FLOW TONIGHT THROUGH MONDAY. THE WAVE THAT
BROUGHT SHOWERS TO PORTIONS OF THE AREA TODAY HAS MOVED EAST. AS A
RESULT SHOWER ACTIVITY HAS BEEN DIMINISHING ACROSS THE AREA. A FEW
BANDS OF LIGHT SHOWERS CONTINUE TO CROSS THE CASCADE CREST AND
AFFECT PARTS OF THE CASCADE EAST SLOPES. THIS PROCESS WILL CONTINUE
THROUGH THE NIGHT, BUT WILL GRADUALLY DECREASE AND END TOWARDS
DAYBREAK. ALSO A FEW BANDS CONTINUE OVER THE INTERIOR MOUNTAINS OF
NORTHEAST OREGON. THESE TOO WILL GRADUALLY DECREASE AND COME TO AN
END OVERNIGHT. STILL EXPECT A MOSTLY DRY DAY MONDAY, THOUGH THE NEXT
SYSTEM IMBEDDED WITHIN THE NORTHWEST UPPER FLOW WILL BEGIN TO SPREAD
PRECIP INTO THE CASCADE EAST SLOPE ZONES DURING THE AFTERNOON. SNOW
LEVELS WILL FALL TO BETWEEN 2000 AND 3500 FEET TONIGHT, THEN RISE
AGAIN MONDAY, RANGING FROM 3500 FEET IN CENTRAL WASHINGTON AND 5000
FEET IN CENTRAL OREGON BY LATE AFTERNOON. LOCALLY BREEZY WINDS WILL
DECREASE OVERNIGHT. CURRENT FORECAST PACKAGE GENERALLY IN GOOD SHAPE
AND ONLY MADE ADJUSTMENTS BASED ON LATEST TRENDS. 90

.LONG TERM...PREVIOUS DISCUSSION...A VERY BUSY EXTENDED AS ACTIVE
WEATHER THREATENS THE HOLIDAY WEEKEND. A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE AREA BY MID WEEK. MOISTURE IS EXPECTED TO
OVERRUN JUST TO THE NORTH OF THE CWA...MAINLY AFFECTING THE SPOKANE
CWA. SLIGHT CHANCE TO CHANCE PRECIPITATION WILL REMAIN OVER THE EAST
SLOPES OF THE WASHINGTON CASCADES AND THE MOUNTAINS OF NORTHEAST
OREGON THROUGH WEDNESDAY NIGHT. A STRONG COLD FRONT MOVING SOUTH
FROM CANADA WILL FLATTEN OUT THE RIDGE OF HIGH PRESSURE THURSDAY...
PROVIDING A MOIST WESTERLY FLOW TO THE AREA FOR THANKSGIVING. RIGHT
NOW HAVE NOT GONE TOO AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS
EXPECTED TO BE ALL RAIN...AND THERE MAY BE A DECENT RAINSHADOW
AFFECT FOR THE BASIN. SO 20-30 PERCENT POPS IN THE FORECAST FOR THE
LOWER ELEVATIONS WITH 30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY. SATURDAY
ONWARD IS WHERE IT GETS INTERESTING. THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL. THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION. CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING. THESE AREAS COULD SEE A RAIN
SNOW MIX...OR POSSIBLY FREEZING RAIN. HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY. BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS. WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.

&&

.AVIATION...PREVIOUS DISCUSSION...00Z TAFS...SHOWERS CONTINUE TO
MOVE ACROSS MOST TAF SITES THIS EVENING. PEAK ACTIVITY SHOULD BE
THROUGH 06Z...WITH SOME LINGERING SHOWERS AT KALW AND KPDT THROUGH
09Z. KRDM...KBDN...AND KYKM MAY ESCAPE THE SHOWERS DUE TO
RAINSHADOWING. WINDS WILL BE A BIT BREEZY AS WELL WITH WIND SPEEDS
10-15KTS...GUSTING TO 25KTS AT TIMES. CIGS TONIGHT ARE IN
QUESTION...AS THE POTENTIAL FOR MIST/FOG INCREASES. HAVE INTRODUCED
LOWERED CIGS/VIS INTO THE MVFR/IFR CATEGORY AT TAF SITES OF CONCERN.
CIGS SHOULD START TO IMPROVE AFTER 18Z AND BECOME SCT-BKN 7-10KFT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  48  40  58 /  20  10  40  30
ALW  37  48  42  60 /  20  10  40  40
PSC  35  48  40  58 /  10  10  40  30
YKM  29  42  33  53 /  10  10  30  30
HRI  36  49  40  58 /  10  10  40  30
ELN  30  42  33  52 /  20  10  40  30
RDM  25  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  60  10  50  60
GCD  30  41  31  55 /  30  10  40  30
DLS  38  51  40  54 /  20  10  40  40

&&

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

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

$$

90/89/77








000
FXUS66 KPDT 240524
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
924 PM PST SUN NOV 23 2014

.SHORT TERM...EVENING UPDATE...THE REGION WILL REMAIN UNDER A
NORTHWEST UPPER LEVEL FLOW TONIGHT THROUGH MONDAY. THE WAVE THAT
BROUGHT SHOWERS TO PORTIONS OF THE AREA TODAY HAS MOVED EAST. AS A
RESULT SHOWER ACTIVITY HAS BEEN DIMINISHING ACROSS THE AREA. A FEW
BANDS OF LIGHT SHOWERS CONTINUE TO CROSS THE CASCADE CREST AND
AFFECT PARTS OF THE CASCADE EAST SLOPES. THIS PROCESS WILL CONTINUE
THROUGH THE NIGHT, BUT WILL GRADUALLY DECREASE AND END TOWARDS
DAYBREAK. ALSO A FEW BANDS CONTINUE OVER THE INTERIOR MOUNTAINS OF
NORTHEAST OREGON. THESE TOO WILL GRADUALLY DECREASE AND COME TO AN
END OVERNIGHT. STILL EXPECT A MOSTLY DRY DAY MONDAY, THOUGH THE NEXT
SYSTEM IMBEDDED WITHIN THE NORTHWEST UPPER FLOW WILL BEGIN TO SPREAD
PRECIP INTO THE CASCADE EAST SLOPE ZONES DURING THE AFTERNOON. SNOW
LEVELS WILL FALL TO BETWEEN 2000 AND 3500 FEET TONIGHT, THEN RISE
AGAIN MONDAY, RANGING FROM 3500 FEET IN CENTRAL WASHINGTON AND 5000
FEET IN CENTRAL OREGON BY LATE AFTERNOON. LOCALLY BREEZY WINDS WILL
DECREASE OVERNIGHT. CURRENT FORECAST PACKAGE GENERALLY IN GOOD SHAPE
AND ONLY MADE ADJUSTMENTS BASED ON LATEST TRENDS. 90

.LONG TERM...PREVIOUS DISCUSSION...A VERY BUSY EXTENDED AS ACTIVE
WEATHER THREATENS THE HOLIDAY WEEKEND. A RIDGE OF HIGH PRESSURE WILL
CONTINUE TO BUILD OVER THE AREA BY MID WEEK. MOISTURE IS EXPECTED TO
OVERRUN JUST TO THE NORTH OF THE CWA...MAINLY AFFECTING THE SPOKANE
CWA. SLIGHT CHANCE TO CHANCE PRECIPITATION WILL REMAIN OVER THE EAST
SLOPES OF THE WASHINGTON CASCADES AND THE MOUNTAINS OF NORTHEAST
OREGON THROUGH WEDNESDAY NIGHT. A STRONG COLD FRONT MOVING SOUTH
FROM CANADA WILL FLATTEN OUT THE RIDGE OF HIGH PRESSURE THURSDAY...
PROVIDING A MOIST WESTERLY FLOW TO THE AREA FOR THANKSGIVING. RIGHT
NOW HAVE NOT GONE TOO AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS
EXPECTED TO BE ALL RAIN...AND THERE MAY BE A DECENT RAINSHADOW
AFFECT FOR THE BASIN. SO 20-30 PERCENT POPS IN THE FORECAST FOR THE
LOWER ELEVATIONS WITH 30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY. SATURDAY
ONWARD IS WHERE IT GETS INTERESTING. THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL. THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION. CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING. THESE AREAS COULD SEE A RAIN
SNOW MIX...OR POSSIBLY FREEZING RAIN. HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY. BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS. WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.

&&

.AVIATION...PREVIOUS DISCUSSION...00Z TAFS...SHOWERS CONTINUE TO
MOVE ACROSS MOST TAF SITES THIS EVENING. PEAK ACTIVITY SHOULD BE
THROUGH 06Z...WITH SOME LINGERING SHOWERS AT KALW AND KPDT THROUGH
09Z. KRDM...KBDN...AND KYKM MAY ESCAPE THE SHOWERS DUE TO
RAINSHADOWING. WINDS WILL BE A BIT BREEZY AS WELL WITH WIND SPEEDS
10-15KTS...GUSTING TO 25KTS AT TIMES. CIGS TONIGHT ARE IN
QUESTION...AS THE POTENTIAL FOR MIST/FOG INCREASES. HAVE INTRODUCED
LOWERED CIGS/VIS INTO THE MVFR/IFR CATEGORY AT TAF SITES OF CONCERN.
CIGS SHOULD START TO IMPROVE AFTER 18Z AND BECOME SCT-BKN 7-10KFT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  48  40  58 /  20  10  40  30
ALW  37  48  42  60 /  20  10  40  40
PSC  35  48  40  58 /  10  10  40  30
YKM  29  42  33  53 /  10  10  30  30
HRI  36  49  40  58 /  10  10  40  30
ELN  30  42  33  52 /  20  10  40  30
RDM  25  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  60  10  50  60
GCD  30  41  31  55 /  30  10  40  30
DLS  38  51  40  54 /  20  10  40  40

&&

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

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

$$

90/89/77









000
FXUS66 KPDT 232355 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
355 PM PST SUN NOV 23 2014

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...A DISTURBANCE WILL PASS THROUGH OUR AREA THIS EVENING
PRODUCING SOME RAIN SHOWERS SPECIFICALLY OVER AND NEAR THE
BLUE/WALLOWA MOUNTAINS...ALONG WITH THE JOHN DAY HIGHLANDS...AND
OVER THE WA/OR CASCADES. SNOW LEVELS WILL DIP TOWARD 3500 FEET
TONIGHT AND LOCATIONS SUCH AS MEH AND TOLLGATE COULD EXPERIENCE SOME
SNOW ACCUMULATION. OTHERWISE THE DISTURBANCE IS FORECAST TO RACE SE
OVERNIGHT WITH DRIER CONDITIONS EXPECTED EARLY MONDAY. A WEAK RIDGE
OF HIGH PRESSURE WILL BUILD INTO THE AREA MONDAY MORNING BEFORE
ANOTHER STORM SYSTEM EFFECTS THE TWO STATE AREA MONDAY NIGHT. CLOUDS
AND SHOWERS ARE EXPECTED INTO TUESDAY ALONG WITH ABOVE NORMAL
TEMPERATURES AND RISING SNOW LEVELS. IN ADDITIONAL THE WINDS ACROSS
THE AREA WILL BECOME BREEZY TO WINDY THIS EVENING AND THEN AGAIN ON
TUESDAY WITH THE PASSING STORM SYSTEM.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY NIGHT...A VERY BUSY
EXTENDED AS ACTIVE WEATHER THREATENS THE HOLIDAY WEEKEND.  A RIDGE
OF HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA BY MID WEEK.
MOISTURE IS EXPECTED TO OVERRUN JUST TO THE NORTH OF THE
CWA...MAINLY AFFECTING THE SPOKANE CWA.  SLIGHT CHANCE TO CHANCE
PRECIPITATION WILL REMAIN OVER THE EAST SLOPES OF THE WASHINGTON
CASCADES AND THE MOUNTAINS OF NORTHEAST OREGON THROUGH WEDNESDAY
NIGHT.  A STRONG COLD FRONT MOVING SOUTH FROM CANADA WILL FLATTEN
OUT THE RIDGE OF HIGH PRESSURE THURSDAY...PROVIDING A MOIST WESTERLY
FLOW TO THE AREA FOR THANKSGIVING.  RIGHT NOW HAVE NOT GONE TOO
AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS EXPECTED TO BE ALL
RAIN...AND THERE MAY BE A DECENT RAINSHADOW AFFECT FOR THE BASIN.
SO 20-30 PERCENT POPS IN THE FORECAST FOR THE LOWER ELEVATIONS WITH
30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY.  SATURDAY
ONWARD IS WHERE IT GETS INTERESTING.  THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL.  THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION.  CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING.  THESE AREAS COULD SEE A
RAIN SNOW MIX...OR POSSIBLY FREEZING RAIN.  HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY.  BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS.  WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.  WEBER

&&

.AVIATION...00Z TAFS...SHOWERS CONTINUE TO MOVE ACROSS MOST TAF
SITES THIS EVENING.  PEAK ACTIVITY SHOULD BE THROUGH 06Z...WITH SOME
LINGERING SHOWERS AT KALW AND KPDT THROUGH 09Z. KRDM...KBDN...AND
KYKM MAY ESCAPE THE SHOWERS DUE TO RAINSHADOWING.  WINDS WILL BE A
BIT BREEZY AS WELL WITH WIND SPEEDS 10-15KTS... GUSTING TO 25KTS AT
TIMES.  CIGS TONIGHT ARE IN QUESTION...AS THE POTENTIAL FOR MIST/FOG
INCREASES.  HAVE INTRODUCED LOWERED CIGS/VIS INTO THE MVFR/IFR
CATEGORY AT TAF SITES OF CONCERN. CIGS SHOULD START TO IMPROVE AFTER
18Z AND BECOME SCT-BKN 7-10KFT. WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  35  48  40  58 /  20  10  40  30
ALW  35  48  42  60 /  20  10  40  40
PSC  34  48  40  58 /  10  10  40  30
YKM  30  42  33  53 /  10  10  30  30
HRI  34  49  40  58 /  10  10  40  30
ELN  27  42  33  52 /  10  10  40  30
RDM  27  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  40  10  50  60
GCD  25  41  31  55 /  30  10  40  30
DLS  35  51  40  54 /  30  10  40  40

&&

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

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

$$

97/89/89








000
FXUS66 KPDT 232355 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
355 PM PST SUN NOV 23 2014

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...A DISTURBANCE WILL PASS THROUGH OUR AREA THIS EVENING
PRODUCING SOME RAIN SHOWERS SPECIFICALLY OVER AND NEAR THE
BLUE/WALLOWA MOUNTAINS...ALONG WITH THE JOHN DAY HIGHLANDS...AND
OVER THE WA/OR CASCADES. SNOW LEVELS WILL DIP TOWARD 3500 FEET
TONIGHT AND LOCATIONS SUCH AS MEH AND TOLLGATE COULD EXPERIENCE SOME
SNOW ACCUMULATION. OTHERWISE THE DISTURBANCE IS FORECAST TO RACE SE
OVERNIGHT WITH DRIER CONDITIONS EXPECTED EARLY MONDAY. A WEAK RIDGE
OF HIGH PRESSURE WILL BUILD INTO THE AREA MONDAY MORNING BEFORE
ANOTHER STORM SYSTEM EFFECTS THE TWO STATE AREA MONDAY NIGHT. CLOUDS
AND SHOWERS ARE EXPECTED INTO TUESDAY ALONG WITH ABOVE NORMAL
TEMPERATURES AND RISING SNOW LEVELS. IN ADDITIONAL THE WINDS ACROSS
THE AREA WILL BECOME BREEZY TO WINDY THIS EVENING AND THEN AGAIN ON
TUESDAY WITH THE PASSING STORM SYSTEM.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY NIGHT...A VERY BUSY
EXTENDED AS ACTIVE WEATHER THREATENS THE HOLIDAY WEEKEND.  A RIDGE
OF HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA BY MID WEEK.
MOISTURE IS EXPECTED TO OVERRUN JUST TO THE NORTH OF THE
CWA...MAINLY AFFECTING THE SPOKANE CWA.  SLIGHT CHANCE TO CHANCE
PRECIPITATION WILL REMAIN OVER THE EAST SLOPES OF THE WASHINGTON
CASCADES AND THE MOUNTAINS OF NORTHEAST OREGON THROUGH WEDNESDAY
NIGHT.  A STRONG COLD FRONT MOVING SOUTH FROM CANADA WILL FLATTEN
OUT THE RIDGE OF HIGH PRESSURE THURSDAY...PROVIDING A MOIST WESTERLY
FLOW TO THE AREA FOR THANKSGIVING.  RIGHT NOW HAVE NOT GONE TOO
AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS EXPECTED TO BE ALL
RAIN...AND THERE MAY BE A DECENT RAINSHADOW AFFECT FOR THE BASIN.
SO 20-30 PERCENT POPS IN THE FORECAST FOR THE LOWER ELEVATIONS WITH
30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY.  SATURDAY
ONWARD IS WHERE IT GETS INTERESTING.  THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL.  THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION.  CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING.  THESE AREAS COULD SEE A
RAIN SNOW MIX...OR POSSIBLY FREEZING RAIN.  HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY.  BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS.  WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.  WEBER

&&

.AVIATION...00Z TAFS...SHOWERS CONTINUE TO MOVE ACROSS MOST TAF
SITES THIS EVENING.  PEAK ACTIVITY SHOULD BE THROUGH 06Z...WITH SOME
LINGERING SHOWERS AT KALW AND KPDT THROUGH 09Z. KRDM...KBDN...AND
KYKM MAY ESCAPE THE SHOWERS DUE TO RAINSHADOWING.  WINDS WILL BE A
BIT BREEZY AS WELL WITH WIND SPEEDS 10-15KTS... GUSTING TO 25KTS AT
TIMES.  CIGS TONIGHT ARE IN QUESTION...AS THE POTENTIAL FOR MIST/FOG
INCREASES.  HAVE INTRODUCED LOWERED CIGS/VIS INTO THE MVFR/IFR
CATEGORY AT TAF SITES OF CONCERN. CIGS SHOULD START TO IMPROVE AFTER
18Z AND BECOME SCT-BKN 7-10KFT. WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  35  48  40  58 /  20  10  40  30
ALW  35  48  42  60 /  20  10  40  40
PSC  34  48  40  58 /  10  10  40  30
YKM  30  42  33  53 /  10  10  30  30
HRI  34  49  40  58 /  10  10  40  30
ELN  27  42  33  52 /  10  10  40  30
RDM  27  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  40  10  50  60
GCD  25  41  31  55 /  30  10  40  30
DLS  35  51  40  54 /  30  10  40  40

&&

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

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

$$

97/89/89







000
FXUS66 KPDT 232332 CCA
AFDPDT

AREA FORECAST DISCUSSION...CORRECTION
NATIONAL WEATHER SERVICE PENDLETON OR
220 PM PST SUN NOV 23 2014

.SHORT TERM...A DISTURBANCE WILL PASS THROUGH OUR AREA THIS EVENING
PRODUCING SOME RAIN SHOWERS SPECIFICALLY OVER AND NEAR THE
BLUE/WALLOWA MOUNTAINS...ALONG WITH THE JOHN DAY HIGHLANDS...AND
OVER THE WA/OR CASCADES. SNOW LEVELS WILL DIP TOWARD 3500 FEET
TONIGHT AND LOCATIONS SUCH AS MEH AND TOLLGATE COULD EXPERIENCE SOME
SNOW ACCUMULATION. OTHERWISE THE DISTURBANCE IS FORECAST TO RACE SE
OVERNIGHT WITH DRIER CONDITIONS EXPECTED EARLY MONDAY. A WEAK RIDGE
OF HIGH PRESSURE WILL BUILD INTO THE AREA MONDAY MORNING BEFORE
ANOTHER STORM SYSTEM EFFECTS THE TWO STATE AREA MONDAY NIGHT. CLOUDS
AND SHOWERS ARE EXPECTED INTO TUESDAY ALONG WITH ABOVE NORMAL
TEMPERATURES AND RISING SNOW LEVELS. IN ADDITIONAL THE WINDS ACROSS
THE AREA WILL BECOME BREEZY TO WINDY THIS EVENING AND THEN AGAIN ON
TUESDAY WITH THE PASSING STORM SYSTEM.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY NIGHT...A VERY BUSY
EXTENDED AS ACTIVE WEATHER THREATENS THE HOLIDAY WEEKEND.  A RIDGE
OF HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA BY MID WEEK.
MOISTURE IS EXPECTED TO OVERRUN JUST TO THE NORTH OF THE
CWA...MAINLY AFFECTING THE SPOKANE CWA.  SLIGHT CHANCE TO CHANCE
PRECIPITATION WILL REMAIN OVER THE EAST SLOPES OF THE WASHINGTON
CASCADES AND THE MOUNTAINS OF NORTHEAST OREGON THROUGH WEDNESDAY
NIGHT.  A STRONG COLD FRONT MOVING SOUTH FROM CANADA WILL FLATTEN
OUT THE RIDGE OF HIGH PRESSURE THURSDAY...PROVIDING A MOIST WESTERLY
FLOW TO THE AREA FOR THANKSGIVING.  RIGHT NOW HAVE NOT GONE TOO
AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS EXPECTED TO BE ALL
RAIN...AND THERE MAY BE A DECENT RAINSHADOW AFFECT FOR THE BASIN.
SO 20-30 PERCENT POPS IN THE FORECAST FOR THE LOWER ELEVATIONS WITH
30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY.  SATURDAY
ONWARD IS WHERE IT GETS INTERESTING.  THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL.  THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION.  CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING.  THESE AREAS COULD SEE A
RAIN SNOW MIX...OR POSSIBLY FREEZING RAIN.  HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY.  BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS.  WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.  WEBER

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...SHOWERS WILL BE MOVING
ACROSS MOST TAF SITES THIS AFTERNOON.  PEAK ACTIVITY SHOULD BE FROM
21Z-03Z...WITH SOME LINGERING SHOWERS AT KALW AND KPDT FROM 03Z-09Z.
KRDM...KBDN...AND KYKM MAY ESCAPE THE SHOWERS DUE TO RAINSHADOWING.
WINDS WILL BE A BIT BREEZY AS WELL WITH WIND SPEEDS 10-15KTS...
GUSTING TO 25KTS AT TIMES.  CIGS TONIGHT ARE IN QUESTION...AS THE
POTENTIAL FOR MIST/FOG INCREASES.  HAVE INTRODUCED LOWERED CIGS/VIS
INTO THE MVFR/IFR CATEGORY AT TAF SITES OF CONCERN.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  35  48  40  58 /  20  10  40  30
ALW  35  48  42  60 /  20  10  40  40
PSC  34  48  40  58 /  10  10  40  30
YKM  30  42  33  53 /  10  10  30  30
HRI  34  49  40  58 /  10  10  40  30
ELN  27  42  33  52 /  10  10  40  30
RDM  27  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  40  10  50  60
GCD  25  41  31  55 /  30  10  40  30
DLS  35  51  40  54 /  30  10  40  40

&&

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

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

$$

97/89/89







000
FXUS66 KPDT 232332 CCA
AFDPDT

AREA FORECAST DISCUSSION...CORRECTION
NATIONAL WEATHER SERVICE PENDLETON OR
220 PM PST SUN NOV 23 2014

.SHORT TERM...A DISTURBANCE WILL PASS THROUGH OUR AREA THIS EVENING
PRODUCING SOME RAIN SHOWERS SPECIFICALLY OVER AND NEAR THE
BLUE/WALLOWA MOUNTAINS...ALONG WITH THE JOHN DAY HIGHLANDS...AND
OVER THE WA/OR CASCADES. SNOW LEVELS WILL DIP TOWARD 3500 FEET
TONIGHT AND LOCATIONS SUCH AS MEH AND TOLLGATE COULD EXPERIENCE SOME
SNOW ACCUMULATION. OTHERWISE THE DISTURBANCE IS FORECAST TO RACE SE
OVERNIGHT WITH DRIER CONDITIONS EXPECTED EARLY MONDAY. A WEAK RIDGE
OF HIGH PRESSURE WILL BUILD INTO THE AREA MONDAY MORNING BEFORE
ANOTHER STORM SYSTEM EFFECTS THE TWO STATE AREA MONDAY NIGHT. CLOUDS
AND SHOWERS ARE EXPECTED INTO TUESDAY ALONG WITH ABOVE NORMAL
TEMPERATURES AND RISING SNOW LEVELS. IN ADDITIONAL THE WINDS ACROSS
THE AREA WILL BECOME BREEZY TO WINDY THIS EVENING AND THEN AGAIN ON
TUESDAY WITH THE PASSING STORM SYSTEM.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY NIGHT...A VERY BUSY
EXTENDED AS ACTIVE WEATHER THREATENS THE HOLIDAY WEEKEND.  A RIDGE
OF HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA BY MID WEEK.
MOISTURE IS EXPECTED TO OVERRUN JUST TO THE NORTH OF THE
CWA...MAINLY AFFECTING THE SPOKANE CWA.  SLIGHT CHANCE TO CHANCE
PRECIPITATION WILL REMAIN OVER THE EAST SLOPES OF THE WASHINGTON
CASCADES AND THE MOUNTAINS OF NORTHEAST OREGON THROUGH WEDNESDAY
NIGHT.  A STRONG COLD FRONT MOVING SOUTH FROM CANADA WILL FLATTEN
OUT THE RIDGE OF HIGH PRESSURE THURSDAY...PROVIDING A MOIST WESTERLY
FLOW TO THE AREA FOR THANKSGIVING.  RIGHT NOW HAVE NOT GONE TOO
AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS EXPECTED TO BE ALL
RAIN...AND THERE MAY BE A DECENT RAINSHADOW AFFECT FOR THE BASIN.
SO 20-30 PERCENT POPS IN THE FORECAST FOR THE LOWER ELEVATIONS WITH
30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY.  SATURDAY
ONWARD IS WHERE IT GETS INTERESTING.  THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL.  THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION.  CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING.  THESE AREAS COULD SEE A
RAIN SNOW MIX...OR POSSIBLY FREEZING RAIN.  HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY.  BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS.  WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.  WEBER

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...SHOWERS WILL BE MOVING
ACROSS MOST TAF SITES THIS AFTERNOON.  PEAK ACTIVITY SHOULD BE FROM
21Z-03Z...WITH SOME LINGERING SHOWERS AT KALW AND KPDT FROM 03Z-09Z.
KRDM...KBDN...AND KYKM MAY ESCAPE THE SHOWERS DUE TO RAINSHADOWING.
WINDS WILL BE A BIT BREEZY AS WELL WITH WIND SPEEDS 10-15KTS...
GUSTING TO 25KTS AT TIMES.  CIGS TONIGHT ARE IN QUESTION...AS THE
POTENTIAL FOR MIST/FOG INCREASES.  HAVE INTRODUCED LOWERED CIGS/VIS
INTO THE MVFR/IFR CATEGORY AT TAF SITES OF CONCERN.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  35  48  40  58 /  20  10  40  30
ALW  35  48  42  60 /  20  10  40  40
PSC  34  48  40  58 /  10  10  40  30
YKM  30  42  33  53 /  10  10  30  30
HRI  34  49  40  58 /  10  10  40  30
ELN  27  42  33  52 /  10  10  40  30
RDM  27  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  40  10  50  60
GCD  25  41  31  55 /  30  10  40  30
DLS  35  51  40  54 /  30  10  40  40

&&

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

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

$$

97/89/89








000
FXUS66 KPDT 232228 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
220 PM PST SUN NOV 23 2014

.SHORT TERM...A DISTURBANCE WILL PASS THROUGH OUR AREA THIS EVENING
PRODUCING SOME RAIN SHOWERS SPECIFICALLY OVER AND NEAR THE
BLUE/WALLOWA MOUNTAINS...ALONG WITH THE JOHN DAY HIGHLANDS...AND
OVER THE WA/OR CASCADES. SNOW LEVELS WILL DIP TOWARD 3500 FEET
TONIGHT AND LOCATIONS SUCH AS MEH AND TOLLGATE COULD EXPERIENCE SOME
SNOW ACCUMULATION. OTHERWISE THE DISTURBANCE IS FORECAST TO RACE SE
OVERNIGHT WITH DRIER CONDITIONS EXPECTED EARLY MONDAY. A WEAK RIDGE
OF HIGH PRESSURE WILL BUILD INTO THE AREA MONDAY MORNING BEFORE
ANOTHER STORM SYSTEM EFFECTS THE TWO STATE AREA MONDAY NIGHT. CLOUDS
AND SHOWERS ARE EXPECTED INTO TUESDAY ALONG WITH ABOVE NORMAL
TEMPERATURES AND RISING SNOW LEVELS. IN ADDITIONAL THE WINDS ACROSS
THE AREA WILL BECOME BREEZY TO WINDY THIS EVENING AND THEN AGAIN ON
TUESDAY WITH THE PASSING STORM SYSTEM.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY NIGHT...A VERY BUSY
EXTENDED AS ACTIVE WEATHER THREATENS THE HOLIDAY WEEKEND.  A RIDGE
OF HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA BY MID WEEK.
MOISTURE IS EXPECTED TO OVERRUN JUST TO THE NORTH OF THE
CWA...MAINLY AFFECTING THE SPOKANE CWA.  SLIGHT CHANCE TO CHANCE
PRECIPITATION WILL REMAIN OVER THE EAST SLOPES OF THE WASHINGTON
CASCADES AND THE MOUNTAINS OF NORTHEAST OREGON THROUGH WEDNESDAY
NIGHT.  A STRONG COLD FRONT MOVING SOUTH FROM CANADA WILL FLATTEN
OUT THE RIDGE OF HIGH PRESSURE THURSDAY...PROVIDING A MOIST WESTERLY
FLOW TO THE AREA FOR THANKSGIVING.  RIGHT NOW HAVE NOT GONE TOO
AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS EXPECTED TO BE ALL
RAIN...AND THERE MAY BE A DECENT RAINSHADOW AFFECT FOR THE BASIN.
SO 20-30 PERCENT POPS IN THE FORECAST FOR THE LOWER ELEVATIONS WITH
30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY.  SATURDAY
ONWARD IS WHERE IT GETS INTERESTING.  THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL.  THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION.  CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING.  THESE AREAS COULD SEE A
RAIN SNOW MIX...OR POSSIBLY FREEZING RAIN.  HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY.  BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS.  WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  35  48  40  58 /  20  10  40  30
ALW  35  48  42  60 /  20  10  40  40
PSC  34  48  40  58 /  10  10  40  30
YKM  30  42  33  53 /  10  10  30  30
HRI  34  49  40  58 /  10  10  40  30
ELN  27  42  33  52 /  10  10  40  30
RDM  27  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  40  10  50  60
GCD  25  41  31  55 /  30  10  40  30
DLS  35  51  40  54 /  30  10  40  40

&&

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

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

$$

97/89/89









000
FXUS66 KPDT 232228 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
220 PM PST SUN NOV 23 2014

.SHORT TERM...A DISTURBANCE WILL PASS THROUGH OUR AREA THIS EVENING
PRODUCING SOME RAIN SHOWERS SPECIFICALLY OVER AND NEAR THE
BLUE/WALLOWA MOUNTAINS...ALONG WITH THE JOHN DAY HIGHLANDS...AND
OVER THE WA/OR CASCADES. SNOW LEVELS WILL DIP TOWARD 3500 FEET
TONIGHT AND LOCATIONS SUCH AS MEH AND TOLLGATE COULD EXPERIENCE SOME
SNOW ACCUMULATION. OTHERWISE THE DISTURBANCE IS FORECAST TO RACE SE
OVERNIGHT WITH DRIER CONDITIONS EXPECTED EARLY MONDAY. A WEAK RIDGE
OF HIGH PRESSURE WILL BUILD INTO THE AREA MONDAY MORNING BEFORE
ANOTHER STORM SYSTEM EFFECTS THE TWO STATE AREA MONDAY NIGHT. CLOUDS
AND SHOWERS ARE EXPECTED INTO TUESDAY ALONG WITH ABOVE NORMAL
TEMPERATURES AND RISING SNOW LEVELS. IN ADDITIONAL THE WINDS ACROSS
THE AREA WILL BECOME BREEZY TO WINDY THIS EVENING AND THEN AGAIN ON
TUESDAY WITH THE PASSING STORM SYSTEM.

.LONG TERM...TUESDAY NIGHT THROUGH SUNDAY NIGHT...A VERY BUSY
EXTENDED AS ACTIVE WEATHER THREATENS THE HOLIDAY WEEKEND.  A RIDGE
OF HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA BY MID WEEK.
MOISTURE IS EXPECTED TO OVERRUN JUST TO THE NORTH OF THE
CWA...MAINLY AFFECTING THE SPOKANE CWA.  SLIGHT CHANCE TO CHANCE
PRECIPITATION WILL REMAIN OVER THE EAST SLOPES OF THE WASHINGTON
CASCADES AND THE MOUNTAINS OF NORTHEAST OREGON THROUGH WEDNESDAY
NIGHT.  A STRONG COLD FRONT MOVING SOUTH FROM CANADA WILL FLATTEN
OUT THE RIDGE OF HIGH PRESSURE THURSDAY...PROVIDING A MOIST WESTERLY
FLOW TO THE AREA FOR THANKSGIVING.  RIGHT NOW HAVE NOT GONE TOO
AGGRESSIVE WITH POPS ON THURSDAY...AS IT IS EXPECTED TO BE ALL
RAIN...AND THERE MAY BE A DECENT RAINSHADOW AFFECT FOR THE BASIN.
SO 20-30 PERCENT POPS IN THE FORECAST FOR THE LOWER ELEVATIONS WITH
30-50 PERCENT FOR THE MOUNTAINS.

WARM SOUTHERLY FLOW FROM THE SOUTH LOOKS TO SLOW THE ARRIVAL OF THE
CANADIAN COLD FRONT UNTIL LATE FRIDAY NIGHT INTO SATURDAY.  SATURDAY
ONWARD IS WHERE IT GETS INTERESTING.  THESE TWO AIR MASSES CONTINUE
TO BATTLE THROUGH THE HOLIDAY WEEKEND...AND THERE IS STILL SOME
MODEL DISCREPANCY AS TO HOW MUCH PRECIPITATION WILL FALL ACROSS THE
AREA...AND THE TIME IT WILL FALL.  THE CURRENT OVERALL CONSENSUS
INDICATES THAT THE COLD AIR WILL REACH ABOUT 50 MILES SOUTH OF THE
I-84 CORRIDOR...AND ALL AREAS TO THE NORTH WILL SEE SNOW AS THE
GENERAL FORM OF PRECIPITATION.  CENTRAL OREGON AND THE JOHN DAY
HIGHLANDS IS WHERE IT GETS CHALLENGING.  THESE AREAS COULD SEE A
RAIN SNOW MIX...OR POSSIBLY FREEZING RAIN.  HAVE NOT INTRODUCED THE
FREEZING RAIN TO THE FORECAST DUE TO TIMING AND UNCERTAINTY.  BY
SUNDAY MORNING PARTS OF NORTH CENTRAL OREGON AND SOUTHERN WASHINGTON
ARE EXPECTED TO BE BELOW FREEZING AND MAY HAVE SOME SNOW
ACCUMULATIONS.  WILL CONTINUE TO MONITOR THE FORECAST AND MAKE
UPDATED AS CHANGES OCCUR.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  35  48  40  58 /  20  10  40  30
ALW  35  48  42  60 /  20  10  40  40
PSC  34  48  40  58 /  10  10  40  30
YKM  30  42  33  53 /  10  10  30  30
HRI  34  49  40  58 /  10  10  40  30
ELN  27  42  33  52 /  10  10  40  30
RDM  27  47  34  61 /  10  10  30  20
LGD  32  45  34  53 /  40  10  50  60
GCD  25  41  31  55 /  30  10  40  30
DLS  35  51  40  54 /  30  10  40  40

&&

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

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

$$

97/89/89










000
FXUS66 KPDT 231748 AAB
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
947 AM PST SUN NOV 23 2014

UPDATED FOR AVIATION DISCUSSION

.UPDATE...THE LATEST RADAR WAS SHOWING A LARGE AREA OF PCPN STRIKING
THE WASHINGTON CASCADES WITH MOSTLY RAIN AROUND CLE ELUM AND EASTON.
THE PCPN WAS ASSOCIATED WITH A DISTURBANCE THAT WILL RACE ACROSS THE
TWO STATE AREA TODAY PRODUCING SHOWERS OVER MOST PORTIONS OF OUR
REGION. AS THE SYSTEM PASSES THROUGH THE REGION PRESSURE GRADIENTS
WILL TIGHTEN TO CREATE BREEZY TO WINDY CONDITIONS. ADJUSTMENTS WERE
MADE TO SKY COVER...PCPN...TEMPS...WINDS AND THE PRESENT SHORT TERM
FORECAST APPEARS ON TRACK FOR NOW.

&&

.AVIATION...18Z TAFS...SHOWERS WILL BE MOVING ACROSS MOST TAF SITES
THIS AFTERNOON.  PEAK ACTIVITY SHOULD BE FROM 21Z-03Z...WITH SOME
LINGERING SHOWERS AT KALW AND KPDT FROM 03Z-09Z. KRDM...KBDN...AND
KYKM MAY ESCAPE THE SHOWERS DUE TO RAINSHADOWING.  WINDS WILL BE A
BIT BREEZY AS WELL WITH WIND SPEEDS 10-15KTS...GUSTING TO 25KTS AT
TIMES.  CIGS TONIGHT ARE IN QUESTION...AS THE POTENTIAL FOR MIST/FOG
INCREASES.  HAVE INTRODUCED LOWERED CIGS/VIS INTO THE MVFR/IFR
CATEGORY AT TAF SITES OF CONCERN.  WEBER



&&

.PREV DISC... /ISSUED 359 AM PST SUN NOV 23 2014/

SHORT TERM...TODAY THROUGH TUESDAY. WESTERLY FLOW ALOFT WILL BRING
A SYSTEM ACROSS THE PACIFIC NORTHWEST TODAY. SATELLITE INDICATES
CLOUDS WILL BE INCREASING THIS MORNING. MODELS CONTINUE TO SHOW THE
MAJORITY OF PRECIPITATION WILL BE OVER THE CASCADES AND NORTHEAST
OREGON MOUNTAINS...WITH LIGHT AMOUNTS ELSEWHERE. THE MOUNTAINS ABOVE
4000` WILL SEE SOME ACCUMULATING SNOW. THE STRONGER WESTERLY FLOW
ALOFT COMBINED WITH SURFACE GRADIENTS WILL PRODUCE BREEZY
SOUTHWESTERLY WINDS TODAY. PRECIPITATION WILL TAPER OFF TONIGHT WITH
MOSTLY CLOUDY SKIES. A BUILDING UPPER RIDGE FOR MONDAY WITH MOSTLY
CLOUDY SKIES. PRECIPITATION SHOULD BE LIMITED TO SCATTERED SHOWERS
OVER THE CASCADES. WINDS WILL BE LIGHTER. THE RIDGE WILL REMAIN OVER
THE AREA INTO TUESDAY. HOWEVER A WARM FRONT MOVING THROUGH ALONG
WITH A GOOD STREAM OF MOISTURE WILL PRODUCE RAIN. FREEZING LEVELS
WILL BE RISING AND SNOW WILL BE CONFINED TO THE HIGHER MOUNTAINS.
THE WASHINGTON CASCADES WILL RECEIVE A FAIR AMOUNT OF RAIN WITH THIS
PATTERN. WINDS WILL BE INCREASING TUESDAY BECOMING BREEZY TO WINDY
IN MANY AREAS. TEMPERATURES WILL BE WELL ABOVE NORMAL THE NEXT
SEVERAL DAYS. 94

LONG TERM...TUESDAY NIGHT THROUGH SATURDAY...MODELS START THE
EXTENDED PERIOD IN GOOD AGREEMENT WITH AN UPPER LEVEL RIDGE ALONG
THE CALIFORNIA COAST AND THE NORTHWEST COAST WHILE A FLAT MID/UPPER
LEVEL TROUGH IS IN CENTRAL BRITISH COLUMBIA TUESDAY NIGHT WITH A
FRONTAL BOUNDARY DRAPED ALONG THE SOUTHERN FLANK OF THE TROUGH
RUNNING THROUGH SOUTHERN BRITISH COLUMBIA AND NORTHERN WASHINGTON.
TH ORIENTATION OF THE FRONT AND THE FACT THAT THE TROUGH MAKES ONLY
VERY SLOW MOVEMENT SOUTHWARD TOWARD FORECAST AREA THROUGH WEDNESDAY
AFTERNOON TRANSLATES TO A MAINLY DRY FORECAST THROUGH WEDNESDAY
AFTERNOON. WEDNESDAY NIGHT ONWARD CONFIDENCE DECREASES AS THE 00Z
GFS AND ECMWF RUNS SHOW DIFFERENCES IN HOW THE3Y HANDLE THE RIDGE
ALONG THE COAST. THE GFS INCREASES THE AMPLITUDE OF THE RIDGE, WHICH
PREVENTS SOUTHWARD ADVANCE OF THE FRONTAL BOUNDARY AND ATTENDANT
PRECIPITATION AND KEEPS SNOW LEVELS RELATIVELY HIGH, WHILE THE ECMWF
WEAKENS THE RIDGE, WHICH ALLOWS THE FRONTAL BOUNDARY TO SAG SOUTH
INTO FORECAST AREA FOR INCREASING POPS AND LOWER SNOW LEVELS. SPLIT
THE DIFFERENCE TO MAKE ALLOWANCE FOR POSSIBLE SLOP OVER OF
PRECIPITATION ACROSS THE EAST SLOPES OF THE CASCADES INTO THE
KITTITAS AND YAKIMA VALLEYS BY THURSDAY NIGHT. FRIDAY AND SATURDAY A
MID/UPPER LEVEL TROUGH APPROACHES THE COAST AND SPREADS MOISTURE AND
INCREASING POPS EAST OF CASCADES FRIDAY NIGHT AND SATURDAY. POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  50  35  48  40 /  30  10  10  40
ALW  51  35  48  42 /  30  10  10  40
PSC  53  34  48  40 /  20  10  10  40
YKM  52  30  46  33 /  30  10  10  30
HRI  53  34  49  40 /  30  10  10  40
ELN  52  27  45  33 /  40  10  10  40
RDM  45  27  45  34 /  20  10  10  20
LGD  44  32  41  34 /  60  30  10  50
GCD  43  25  41  31 /  30  30  10  30
DLS  52  35  49  40 /  40  20  10  30

&&

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

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

$$

97/








000
FXUS66 KPDT 231748 AAB
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
947 AM PST SUN NOV 23 2014

UPDATED FOR AVIATION DISCUSSION

.UPDATE...THE LATEST RADAR WAS SHOWING A LARGE AREA OF PCPN STRIKING
THE WASHINGTON CASCADES WITH MOSTLY RAIN AROUND CLE ELUM AND EASTON.
THE PCPN WAS ASSOCIATED WITH A DISTURBANCE THAT WILL RACE ACROSS THE
TWO STATE AREA TODAY PRODUCING SHOWERS OVER MOST PORTIONS OF OUR
REGION. AS THE SYSTEM PASSES THROUGH THE REGION PRESSURE GRADIENTS
WILL TIGHTEN TO CREATE BREEZY TO WINDY CONDITIONS. ADJUSTMENTS WERE
MADE TO SKY COVER...PCPN...TEMPS...WINDS AND THE PRESENT SHORT TERM
FORECAST APPEARS ON TRACK FOR NOW.

&&

.AVIATION...18Z TAFS...SHOWERS WILL BE MOVING ACROSS MOST TAF SITES
THIS AFTERNOON.  PEAK ACTIVITY SHOULD BE FROM 21Z-03Z...WITH SOME
LINGERING SHOWERS AT KALW AND KPDT FROM 03Z-09Z. KRDM...KBDN...AND
KYKM MAY ESCAPE THE SHOWERS DUE TO RAINSHADOWING.  WINDS WILL BE A
BIT BREEZY AS WELL WITH WIND SPEEDS 10-15KTS...GUSTING TO 25KTS AT
TIMES.  CIGS TONIGHT ARE IN QUESTION...AS THE POTENTIAL FOR MIST/FOG
INCREASES.  HAVE INTRODUCED LOWERED CIGS/VIS INTO THE MVFR/IFR
CATEGORY AT TAF SITES OF CONCERN.  WEBER



&&

.PREV DISC... /ISSUED 359 AM PST SUN NOV 23 2014/

SHORT TERM...TODAY THROUGH TUESDAY. WESTERLY FLOW ALOFT WILL BRING
A SYSTEM ACROSS THE PACIFIC NORTHWEST TODAY. SATELLITE INDICATES
CLOUDS WILL BE INCREASING THIS MORNING. MODELS CONTINUE TO SHOW THE
MAJORITY OF PRECIPITATION WILL BE OVER THE CASCADES AND NORTHEAST
OREGON MOUNTAINS...WITH LIGHT AMOUNTS ELSEWHERE. THE MOUNTAINS ABOVE
4000` WILL SEE SOME ACCUMULATING SNOW. THE STRONGER WESTERLY FLOW
ALOFT COMBINED WITH SURFACE GRADIENTS WILL PRODUCE BREEZY
SOUTHWESTERLY WINDS TODAY. PRECIPITATION WILL TAPER OFF TONIGHT WITH
MOSTLY CLOUDY SKIES. A BUILDING UPPER RIDGE FOR MONDAY WITH MOSTLY
CLOUDY SKIES. PRECIPITATION SHOULD BE LIMITED TO SCATTERED SHOWERS
OVER THE CASCADES. WINDS WILL BE LIGHTER. THE RIDGE WILL REMAIN OVER
THE AREA INTO TUESDAY. HOWEVER A WARM FRONT MOVING THROUGH ALONG
WITH A GOOD STREAM OF MOISTURE WILL PRODUCE RAIN. FREEZING LEVELS
WILL BE RISING AND SNOW WILL BE CONFINED TO THE HIGHER MOUNTAINS.
THE WASHINGTON CASCADES WILL RECEIVE A FAIR AMOUNT OF RAIN WITH THIS
PATTERN. WINDS WILL BE INCREASING TUESDAY BECOMING BREEZY TO WINDY
IN MANY AREAS. TEMPERATURES WILL BE WELL ABOVE NORMAL THE NEXT
SEVERAL DAYS. 94

LONG TERM...TUESDAY NIGHT THROUGH SATURDAY...MODELS START THE
EXTENDED PERIOD IN GOOD AGREEMENT WITH AN UPPER LEVEL RIDGE ALONG
THE CALIFORNIA COAST AND THE NORTHWEST COAST WHILE A FLAT MID/UPPER
LEVEL TROUGH IS IN CENTRAL BRITISH COLUMBIA TUESDAY NIGHT WITH A
FRONTAL BOUNDARY DRAPED ALONG THE SOUTHERN FLANK OF THE TROUGH
RUNNING THROUGH SOUTHERN BRITISH COLUMBIA AND NORTHERN WASHINGTON.
TH ORIENTATION OF THE FRONT AND THE FACT THAT THE TROUGH MAKES ONLY
VERY SLOW MOVEMENT SOUTHWARD TOWARD FORECAST AREA THROUGH WEDNESDAY
AFTERNOON TRANSLATES TO A MAINLY DRY FORECAST THROUGH WEDNESDAY
AFTERNOON. WEDNESDAY NIGHT ONWARD CONFIDENCE DECREASES AS THE 00Z
GFS AND ECMWF RUNS SHOW DIFFERENCES IN HOW THE3Y HANDLE THE RIDGE
ALONG THE COAST. THE GFS INCREASES THE AMPLITUDE OF THE RIDGE, WHICH
PREVENTS SOUTHWARD ADVANCE OF THE FRONTAL BOUNDARY AND ATTENDANT
PRECIPITATION AND KEEPS SNOW LEVELS RELATIVELY HIGH, WHILE THE ECMWF
WEAKENS THE RIDGE, WHICH ALLOWS THE FRONTAL BOUNDARY TO SAG SOUTH
INTO FORECAST AREA FOR INCREASING POPS AND LOWER SNOW LEVELS. SPLIT
THE DIFFERENCE TO MAKE ALLOWANCE FOR POSSIBLE SLOP OVER OF
PRECIPITATION ACROSS THE EAST SLOPES OF THE CASCADES INTO THE
KITTITAS AND YAKIMA VALLEYS BY THURSDAY NIGHT. FRIDAY AND SATURDAY A
MID/UPPER LEVEL TROUGH APPROACHES THE COAST AND SPREADS MOISTURE AND
INCREASING POPS EAST OF CASCADES FRIDAY NIGHT AND SATURDAY. POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  50  35  48  40 /  30  10  10  40
ALW  51  35  48  42 /  30  10  10  40
PSC  53  34  48  40 /  20  10  10  40
YKM  52  30  46  33 /  30  10  10  30
HRI  53  34  49  40 /  30  10  10  40
ELN  52  27  45  33 /  40  10  10  40
RDM  45  27  45  34 /  20  10  10  20
LGD  44  32  41  34 /  60  30  10  50
GCD  43  25  41  31 /  30  30  10  30
DLS  52  35  49  40 /  40  20  10  30

&&

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

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

$$

97/







000
FXUS66 KPDT 231716 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
908 AM PST SUN NOV 23 2014

.UPDATE...THE LATEST RADAR WAS SHOWING A LARGE AREA OF PCPN STRIKING
THE WASHINGTON CASCADES WITH MOSTLY RAIN AROUND CLE ELUM AND EASTON.
THE PCPN WAS ASSOCIATED WITH A DISTURBANCE THAT WILL RACE ACROSS THE
TWO STATE AREA TODAY PRODUCING SHOWERS OVER MOST PORTIONS OF OUR
REGION. AS THE SYSTEM PASSES THROUGH THE REGION PRESSURE GRADIENTS
WILL TIGHTEN TO CREATE BREEZY TO WINDY CONDITIONS. ADJUSTMENTS WERE
MADE TO SKY COVER...PCPN...TEMPS...WINDS AND THE PRESENT SHORT TERM
FORECAST APPEARS ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 359 AM PST SUN NOV 23 2014/

SHORT TERM...TODAY THROUGH TUESDAY. WESTERLY FLOW ALOFT WILL BRING
A SYSTEM ACROSS THE PACIFIC NORTHWEST TODAY. SATELLITE INDICATES
CLOUDS WILL BE INCREASING THIS MORNING. MODELS CONTINUE TO SHOW THE
MAJORITY OF PRECIPITATION WILL BE OVER THE CASCADES AND NORTHEAST
OREGON MOUNTAINS...WITH LIGHT AMOUNTS ELSEWHERE. THE MOUNTAINS ABOVE
4000` WILL SEE SOME ACCUMULATING SNOW. THE STRONGER WESTERLY FLOW
ALOFT COMBINED WITH SURFACE GRADIENTS WILL PRODUCE BREEZY
SOUTHWESTERLY WINDS TODAY. PRECIPITATION WILL TAPER OFF TONIGHT WITH
MOSTLY CLOUDY SKIES. A BUILDING UPPER RIDGE FOR MONDAY WITH MOSTLY
CLOUDY SKIES. PRECIPITATION SHOULD BE LIMITED TO SCATTERED SHOWERS
OVER THE CASCADES. WINDS WILL BE LIGHTER. THE RIDGE WILL REMAIN OVER
THE AREA INTO TUESDAY. HOWEVER A WARM FRONT MOVING THROUGH ALONG
WITH A GOOD STREAM OF MOISTURE WILL PRODUCE RAIN. FREEZING LEVELS
WILL BE RISING AND SNOW WILL BE CONFINED TO THE HIGHER MOUNTAINS.
THE WASHINGTON CASCADES WILL RECEIVE A FAIR AMOUNT OF RAIN WITH THIS
PATTERN. WINDS WILL BE INCREASING TUESDAY BECOMING BREEZY TO WINDY
IN MANY AREAS. TEMPERATURES WILL BE WELL ABOVE NORMAL THE NEXT
SEVERAL DAYS. 94

LONG TERM...TUESDAY NIGHT THROUGH SATURDAY...MODELS START THE
EXTENDED PERIOD IN GOOD AGREEMENT WITH AN UPPER LEVEL RIDGE ALONG
THE CALIFORNIA COAST AND THE NORTHWEST COAST WHILE A FLAT MID/UPPER
LEVEL TROUGH IS IN CENTRAL BRITISH COLUMBIA TUESDAY NIGHT WITH A
FRONTAL BOUNDARY DRAPED ALONG THE SOUTHERN FLANK OF THE TROUGH
RUNNING THROUGH SOUTHERN BRITISH COLUMBIA AND NORTHERN WASHINGTON.
TH ORIENTATION OF THE FRONT AND THE FACT THAT THE TROUGH MAKES ONLY
VERY SLOW MOVEMENT SOUTHWARD TOWARD FORECAST AREA THROUGH WEDNESDAY
AFTERNOON TRANSLATES TO A MAINLY DRY FORECAST THROUGH WEDNESDAY
AFTERNOON. WEDNESDAY NIGHT ONWARD CONFIDENCE DECREASES AS THE 00Z
GFS AND ECMWF RUNS SHOW DIFFERENCES IN HOW THE3Y HANDLE THE RIDGE
ALONG THE COAST. THE GFS INCREASES THE AMPLITUDE OF THE RIDGE, WHICH
PREVENTS SOUTHWARD ADVANCE OF THE FRONTAL BOUNDARY AND ATTENDANT
PRECIPITATION AND KEEPS SNOW LEVELS RELATIVELY HIGH, WHILE THE ECMWF
WEAKENS THE RIDGE, WHICH ALLOWS THE FRONTAL BOUNDARY TO SAG SOUTH
INTO FORECAST AREA FOR INCREASING POPS AND LOWER SNOW LEVELS. SPLIT
THE DIFFERENCE TO MAKE ALLOWANCE FOR POSSIBLE SLOP OVER OF
PRECIPITATION ACROSS THE EAST SLOPES OF THE CASCADES INTO THE
KITTITAS AND YAKIMA VALLEYS BY THURSDAY NIGHT. FRIDAY AND SATURDAY A
MID/UPPER LEVEL TROUGH APPROACHES THE COAST AND SPREADS MOISTURE AND
INCREASING POPS EAST OF CASCADES FRIDAY NIGHT AND SATURDAY. POLAN

AVIATION...12Z TAFS...VFR CONDITIONS EXPECTED AT ALL TAF
SITES THROUGH THE PERIOD. A STRONG WEST TO NORTHWEST FLOW ALOFT WILL
CONTINUE OVER THE AREA. THIS IN COMBINATION WITH A WEAK DISTURBANCE
RIDING OVER THE MID/UPPER LEVEL RIDGE OF HIGH PRESSURE JUST
OFFSHORE WILL ACT TO BRING SCT TO BKN MID LEVEL CLOUDS TO MOST TAF
SITES THROUGHOUT THE TAF PERIOD. THE MAIN EFFECTS OF THE
AFOREMENTIONED DISTURBANCE WILL MOVE THROUGH THE AREA BEGINNING
AROUND 21Z/23RD AND BRING SOME -SHRA MAINLY TO KPDT AND KALW WITH
THE -SHRA GETTING ADDITIONAL OROGRAPHIC LIFT OVER THE BLUE
MOUNTAINS. THE ANGLE OF ATTACK OF THE DISTURBANCE WILL BE SUCH THAT
PRONOUNCED RAIN SHADOW EFFECTS WILL BE FELT IMMEDIATELY EAST OF THE
OREGON AND WASHINGTON CASCADES THROUGH THIS AFTERNOON. DOWNSLOPE
WINDS ALONG THE FOOTHILLS OF THE BLUE MOUNTAINS THIS MORNING WILL
GIVE WAY TO INCREASING PRESSURE GRADIENTS THIS AFTERNOON. SUSTAINED
WINDS AT KPDT, KALW AND KPSC WILL INCREASE AGAIN AROUND MIDDAY
REACHING 10 TO 20 KTS BY 19Z/23RD WITHE THESE WIND SPEEDS PERSISTING
UNTIL AROUND 01Z/24TH WITH WINDS DIMINISHING THIS EVENING THROUGH
OVERNIGHT. POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  50  35  48  40 /  30  10  10  40
ALW  51  35  48  42 /  30  10  10  40
PSC  53  34  48  40 /  20  10  10  40
YKM  52  30  46  33 /  30  10  10  30
HRI  53  34  49  40 /  30  10  10  40
ELN  52  27  45  33 /  40  10  10  40
RDM  45  27  45  34 /  20  10  10  20
LGD  44  32  41  34 /  60  30  10  50
GCD  43  25  41  31 /  30  30  10  30
DLS  52  35  49  40 /  40  20  10  30

&&

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

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

$$

97/









000
FXUS66 KPDT 231159 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
359 AM PST SUN NOV 23 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH TUESDAY. WESTERLY FLOW ALOFT WILL BRING
A SYSTEM ACROSS THE PACIFIC NORTHWEST TODAY. SATELLITE INDICATES
CLOUDS WILL BE INCREASING THIS MORNING. MODELS CONTINUE TO SHOW THE
MAJORITY OF PRECIPITATION WILL BE OVER THE CASCADES AND NORTHEAST
OREGON MOUNTAINS...WITH LIGHT AMOUNTS ELSEWHERE. THE MOUNTAINS ABOVE
4000` WILL SEE SOME ACCUMULATING SNOW. THE STRONGER WESTERLY FLOW
ALOFT COMBINED WITH SURFACE GRADIENTS WILL PRODUCE BREEZY
SOUTHWESTERLY WINDS TODAY. PRECIPITATION WILL TAPER OFF TONIGHT WITH
MOSTLY CLOUDY SKIES. A BUILDING UPPER RIDGE FOR MONDAY WITH MOSTLY
CLOUDY SKIES. PRECIPITATION SHOULD BE LIMITED TO SCATTERED SHOWERS
OVER THE CASCADES. WINDS WILL BE LIGHTER. THE RIDGE WILL REMAIN OVER
THE AREA INTO TUESDAY. HOWEVER A WARM FRONT MOVING THROUGH ALONG
WITH A GOOD STREAM OF MOISTURE WILL PRODUCE RAIN. FREEZING LEVELS
WILL BE RISING AND SNOW WILL BE CONFINED TO THE HIGHER MOUNTAINS.
THE WASHINGTON CASCADES WILL RECEIVE A FAIR AMOUNT OF RAIN WITH THIS
PATTERN. WINDS WILL BE INCREASING TUESDAY BECOMING BREEZY TO WINDY
IN MANY AREAS. TEMPERATURES WILL BE WELL ABOVE NORMAL THE NEXT
SEVERAL DAYS. 94

.LONG TERM...TUESDAY NIGHT THROUGH SATURDAY...MODELS START THE
EXTENDED PERIOD IN GOOD AGREEMENT WITH AN UPPER LEVEL RIDGE ALONG
THE CALIFORNIA COAST AND THE NORTHWEST COAST WHILE A FLAT MID/UPPER
LEVEL TROUGH IS IN CENTRAL BRITISH COLUMBIA TUESDAY NIGHT WITH A
FRONTAL BOUNDARY DRAPED ALONG THE SOUTHERN FLANK OF THE TROUGH
RUNNING THROUGH SOUTHERN BRITISH COLUMBIA AND NORTHERN WASHINGTON.
TH ORIENTATION OF THE FRONT AND THE FACT THAT THE TROUGH MAKES ONLY
VERY SLOW MOVEMENT SOUTHWARD TOWARD FORECAST AREA THROUGH WEDNESDAY
AFTERNOON TRANSLATES TO A MAINLY DRY FORECAST THROUGH WEDNESDAY
AFTERNOON. WEDNESDAY NIGHT ONWARD CONFIDENCE DECREASES AS THE 00Z
GFS AND ECMWF RUNS SHOW DIFFERENCES IN HOW THE3Y HANDLE THE RIDGE
ALONG THE COAST. THE GFS INCREASES THE AMPLITUDE OF THE RIDGE, WHICH
PREVENTS SOUTHWARD ADVANCE OF THE FRONTAL BOUNDARY AND ATTENDANT
PRECIPITATION AND KEEPS SNOW LEVELS RELATIVELY HIGH, WHILE THE ECMWF
WEAKENS THE RIDGE, WHICH ALLOWS THE FRONTAL BOUNDARY TO SAG SOUTH
INTO FORECAST AREA FOR INCREASING POPS AND LOWER SNOW LEVELS. SPLIT
THE DIFFERENCE TO MAKE ALLOWANCE FOR POSSIBLE SLOP OVER OF
PRECIPITATION ACROSS THE EAST SLOPES OF THE CASCADES INTO THE
KITTITAS AND YAKIMA VALLEYS BY THURSDAY NIGHT. FRIDAY AND SATURDAY A
MID/UPPER LEVEL TROUGH APPROACHES THE COAST AND SPREADS MOISTURE AND
INCREASING POPS EAST OF CASCADES FRIDAY NIGHT AND SATURDAY. POLAN

&&

.AVIATION...12Z TAFS...VFR CONDITIONS EXPECTED AT ALL TAF
SITES THROUGH THE PERIOD. A STRONG WEST TO NORTHWEST FLOW ALOFT WILL
CONTINUE OVER THE AREA. THIS IN COMBINATION WITH A WEAK DISTURBANCE
RIDING OVER THE MID/UPPER LEVEL RIDGE OF HIGH PRESSURE JUST
OFFSHORE WILL ACT TO BRING SCT TO BKN MID LEVEL CLOUDS TO MOST TAF
SITES THROUGHOUT THE TAF PERIOD. THE MAIN EFFECTS OF THE
AFOREMENTIONED DISTURBANCE WILL MOVE THROUGH THE AREA BEGINNING
AROUND 21Z/23RD AND BRING SOME -SHRA MAINLY TO KPDT AND KALW WITH
THE -SHRA GETTING ADDITIONAL OROGRAPHIC LIFT OVER THE BLUE
MOUNTAINS. THE ANGLE OF ATTACK OF THE DISTURBANCE WILL BE SUCH THAT
PRONOUNCED RAIN SHADOW EFFECTS WILL BE FELT IMMEDIATELY EAST OF THE
OREGON AND WASHINGTON CASCADES THROUGH THIS AFTERNOON. DOWNSLOPE
WINDS ALONG THE FOOTHILLS OF THE BLUE MOUNTAINS THIS MORNING WILL
GIVE WAY TO INCREASING PRESSURE GRADIENTS THIS AFTERNOON. SUSTAINED
WINDS AT KPDT, KALW AND KPSC WILL INCREASE AGAIN AROUND MIDDAY
REACHING 10 TO 20 KTS BY 19Z/23RD WITHE THESE WIND SPEEDS PERSISTING
UNTIL AROUND 01Z/24TH WITH WINDS DIMINISHING THIS EVENING THROUGH
OVERNIGHT. POLAN

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  50  35  48  40 /  30  10  10  40
ALW  51  35  48  42 /  30  10  10  40
PSC  51  34  48  40 /  20  10  10  40
YKM  47  30  46  33 /  30  10  10  30
HRI  51  34  49  40 /  30  10  10  40
ELN  45  27  45  33 /  40  10  10  40
RDM  45  27  45  34 /  20  10  10  20
LGD  43  32  41  34 /  60  30  10  50
GCD  43  25  41  31 /  30  30  10  30
DLS  50  35  49  40 /  40  20  10  30

&&

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

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

$$

94/99/99








000
FXUS66 KPDT 231102
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST SUN NOV 23 2014

.SHORT TERM...TODAY THROUGH TUESDAY. WESTERLY FLOW ALOFT WILL BRING
A SYSTEM ACROSS THE PACIFIC NORTHWEST TODAY. SATELLITE INDICATES
CLOUDS WILL BE INCREASING THIS MORNING. MODELS CONTINUE TO SHOW THE
MAJORITY OF PRECIPITATION WILL BE OVER THE CASCADES AND NORTHEAST
OREGON MOUNTAINS...WITH LIGHT AMOUNTS ELSEWHERE. THE MOUNTAINS ABOVE
4000` WILL SEE SOME ACCUMULATING SNOW. THE STRONGER WESTERLY FLOW
ALOFT COMBINED WITH SURFACE GRADIENTS WILL PRODUCE BREEZY
SOUTHWESTERLY WINDS TODAY. PRECIPITATION WILL TAPER OFF TONIGHT WITH
MOSTLY CLOUDY SKIES. A BUILDING UPPER RIDGE FOR MONDAY WITH MOSTLY
CLOUDY SKIES. PRECIPITATION SHOULD BE LIMITED TO SCATTERED SHOWERS
OVER THE CASCADES. WINDS WILL BE LIGHTER. THE RIDGE WILL REMAIN OVER
THE AREA INTO TUESDAY. HOWEVER A WARM FRONT MOVING THROUGH ALONG
WITH A GOOD STREAM OF MOISTURE WILL PRODUCE RAIN. FREEZING LEVELS
WILL BE RISING AND SNOW WILL BE CONFINED TO THE HIGHER MOUNTAINS.
THE WASHINGTON CASCADES WILL RECEIVE A FAIR AMOUNT OF RAIN WITH THIS
PATTERN. WINDS WILL BE INCREASING TUESDAY BECOMING BREEZY TO WINDY
IN MANY AREAS. TEMPERATURES WILL BE WELL ABOVE NORMAL THE NEXT
SEVERAL DAYS. 94

.LONG TERM...TUESDAY NIGHT THROUGH SATURDAY...MODELS START THE
EXTENDED PERIOD IN GOOD AGREEMENT WITH AN UPPER LEVEL RIDGE ALONG
THE CALIFORNIA COAST AND THE NORTHWEST COAST WHILE A FLAT MID/UPPER
LEVEL TROUGH IS IN CENTRAL BRITISH COLUMBIA TUESDAY NIGHT WITH A
FRONTAL BOUNDARY DRAPED ALONG THE SOUTHERN FLANK OF THE TROUGH
RUNNING THROUGH SOUTHERN BRITISH COLUMBIA AND NORTHERN WASHINGTON.
TH ORIENTATION OF THE FRONT AND THE FACT THAT THE TROUGH MAKES ONLY
VERY SLOW MOVEMENT SOUTHWARD TOWARD FORECAST AREA THROUGH WEDNESDAY
AFTERNOON TRANSLATES TO A MAINLY DRY FORECAST THROUGH WEDNESDAY
AFTERNOON. WEDNESDAY NIGHT ONWARD CONFIDENCE DECREASES AS THE 00Z
GFS AND ECMWF RUNS SHOW DIFFERENCES IN HOW THE3Y HANDLE THE RIDGE
ALONG THE COAST. THE GFS INCREASES THE AMPLITUDE OF THE RIDGE, WHICH
PREVENTS SOUTHWARD ADVANCE OF THE FRONTAL BOUNDARY AND ATTENDANT
PRECIPITATION AND KEEPS SNOW LEVELS RELATIVELY HIGH, WHILE THE ECMWF
WEAKENS THE RIDGE, WHICH ALLOWS THE FRONTAL BOUNDARY TO SAG SOUTH
INTO FORECAST AREA FOR INCREASING POPS AND LOWER SNOW LEVELS. SPLIT
THE DIFFERENCE TO MAKE ALLOWANCE FOR POSSIBLE SLOP OVER OF
PRECIPITATION ACROSS THE EAST SLOPES OF THE CASCADES INTO THE
KITTITAS AND YAKIMA VALLEYS BY THURSDAY NIGHT. FRIDAY AND SATURDAY A
MID/UPPER LEVEL TROUGH APPROACHES THE COAST AND SPREADS MOISTURE AND
INCREASING POPS EAST OF CASCADES FRIDAY NIGHT AND SATURDAY. POLAN

&&

.PREVIOUS AVIATION DISCUSSION...06Z TAFS...VFR CONDITIONS EXPECTED
AT ALL TAF SITES THROUGH THE PERIOD. A STRONG WEST TO NORTHWEST FLOW
ALOFT WILL CONTINUE OVER THE AREA. THIS...IN COMBINATION WITH
SEVERAL WEAK DISTURBANCES WILL ACT TO BRING PERIODIC SCT TO BKN MID
LEVEL CLOUD DECKS TO MOST TAF SITES THROUGHOUT THE TAF PERIOD. A
SLIGHTLY BETTER DEFINED DISTURBANCE WILL TRY TO WORK ITS WAY THROUGH
THE AREA AFTER 23/21Z...BRINGING SOME -SHRA TO AND INVOF MOST TAF
SITES. WINDS WILL REMAIN GUSTY AT KPDT THROUGH THE NIGHT BEFORE A
SHORT BREAK FROM 23/15-19Z. WIND GUSTS ARE THEN FORECAST TO INCREASE
AGAIN...REACHING 25 TO 30 KTS AFTER 23/19Z FOR KPDT...KALW..AND KPSC
TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  50  35  48  40 /  30  10  10  40
ALW  51  35  48  42 /  30  10  10  40
PSC  51  34  48  40 /  20  10  10  40
YKM  47  30  46  33 /  30  10  10  30
HRI  51  34  49  40 /  30  10  10  40
ELN  45  27  45  33 /  40  10  10  40
RDM  45  27  45  34 /  20  10  10  20
LGD  43  32  41  34 /  60  30  10  50
GCD  43  25  41  31 /  30  30  10  30
DLS  50  35  49  40 /  40  20  10  30

&&

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

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

$$

94/99/99









000
FXUS66 KPDT 231102
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST SUN NOV 23 2014

.SHORT TERM...TODAY THROUGH TUESDAY. WESTERLY FLOW ALOFT WILL BRING
A SYSTEM ACROSS THE PACIFIC NORTHWEST TODAY. SATELLITE INDICATES
CLOUDS WILL BE INCREASING THIS MORNING. MODELS CONTINUE TO SHOW THE
MAJORITY OF PRECIPITATION WILL BE OVER THE CASCADES AND NORTHEAST
OREGON MOUNTAINS...WITH LIGHT AMOUNTS ELSEWHERE. THE MOUNTAINS ABOVE
4000` WILL SEE SOME ACCUMULATING SNOW. THE STRONGER WESTERLY FLOW
ALOFT COMBINED WITH SURFACE GRADIENTS WILL PRODUCE BREEZY
SOUTHWESTERLY WINDS TODAY. PRECIPITATION WILL TAPER OFF TONIGHT WITH
MOSTLY CLOUDY SKIES. A BUILDING UPPER RIDGE FOR MONDAY WITH MOSTLY
CLOUDY SKIES. PRECIPITATION SHOULD BE LIMITED TO SCATTERED SHOWERS
OVER THE CASCADES. WINDS WILL BE LIGHTER. THE RIDGE WILL REMAIN OVER
THE AREA INTO TUESDAY. HOWEVER A WARM FRONT MOVING THROUGH ALONG
WITH A GOOD STREAM OF MOISTURE WILL PRODUCE RAIN. FREEZING LEVELS
WILL BE RISING AND SNOW WILL BE CONFINED TO THE HIGHER MOUNTAINS.
THE WASHINGTON CASCADES WILL RECEIVE A FAIR AMOUNT OF RAIN WITH THIS
PATTERN. WINDS WILL BE INCREASING TUESDAY BECOMING BREEZY TO WINDY
IN MANY AREAS. TEMPERATURES WILL BE WELL ABOVE NORMAL THE NEXT
SEVERAL DAYS. 94

.LONG TERM...TUESDAY NIGHT THROUGH SATURDAY...MODELS START THE
EXTENDED PERIOD IN GOOD AGREEMENT WITH AN UPPER LEVEL RIDGE ALONG
THE CALIFORNIA COAST AND THE NORTHWEST COAST WHILE A FLAT MID/UPPER
LEVEL TROUGH IS IN CENTRAL BRITISH COLUMBIA TUESDAY NIGHT WITH A
FRONTAL BOUNDARY DRAPED ALONG THE SOUTHERN FLANK OF THE TROUGH
RUNNING THROUGH SOUTHERN BRITISH COLUMBIA AND NORTHERN WASHINGTON.
TH ORIENTATION OF THE FRONT AND THE FACT THAT THE TROUGH MAKES ONLY
VERY SLOW MOVEMENT SOUTHWARD TOWARD FORECAST AREA THROUGH WEDNESDAY
AFTERNOON TRANSLATES TO A MAINLY DRY FORECAST THROUGH WEDNESDAY
AFTERNOON. WEDNESDAY NIGHT ONWARD CONFIDENCE DECREASES AS THE 00Z
GFS AND ECMWF RUNS SHOW DIFFERENCES IN HOW THE3Y HANDLE THE RIDGE
ALONG THE COAST. THE GFS INCREASES THE AMPLITUDE OF THE RIDGE, WHICH
PREVENTS SOUTHWARD ADVANCE OF THE FRONTAL BOUNDARY AND ATTENDANT
PRECIPITATION AND KEEPS SNOW LEVELS RELATIVELY HIGH, WHILE THE ECMWF
WEAKENS THE RIDGE, WHICH ALLOWS THE FRONTAL BOUNDARY TO SAG SOUTH
INTO FORECAST AREA FOR INCREASING POPS AND LOWER SNOW LEVELS. SPLIT
THE DIFFERENCE TO MAKE ALLOWANCE FOR POSSIBLE SLOP OVER OF
PRECIPITATION ACROSS THE EAST SLOPES OF THE CASCADES INTO THE
KITTITAS AND YAKIMA VALLEYS BY THURSDAY NIGHT. FRIDAY AND SATURDAY A
MID/UPPER LEVEL TROUGH APPROACHES THE COAST AND SPREADS MOISTURE AND
INCREASING POPS EAST OF CASCADES FRIDAY NIGHT AND SATURDAY. POLAN

&&

.PREVIOUS AVIATION DISCUSSION...06Z TAFS...VFR CONDITIONS EXPECTED
AT ALL TAF SITES THROUGH THE PERIOD. A STRONG WEST TO NORTHWEST FLOW
ALOFT WILL CONTINUE OVER THE AREA. THIS...IN COMBINATION WITH
SEVERAL WEAK DISTURBANCES WILL ACT TO BRING PERIODIC SCT TO BKN MID
LEVEL CLOUD DECKS TO MOST TAF SITES THROUGHOUT THE TAF PERIOD. A
SLIGHTLY BETTER DEFINED DISTURBANCE WILL TRY TO WORK ITS WAY THROUGH
THE AREA AFTER 23/21Z...BRINGING SOME -SHRA TO AND INVOF MOST TAF
SITES. WINDS WILL REMAIN GUSTY AT KPDT THROUGH THE NIGHT BEFORE A
SHORT BREAK FROM 23/15-19Z. WIND GUSTS ARE THEN FORECAST TO INCREASE
AGAIN...REACHING 25 TO 30 KTS AFTER 23/19Z FOR KPDT...KALW..AND KPSC
TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  50  35  48  40 /  30  10  10  40
ALW  51  35  48  42 /  30  10  10  40
PSC  51  34  48  40 /  20  10  10  40
YKM  47  30  46  33 /  30  10  10  30
HRI  51  34  49  40 /  30  10  10  40
ELN  45  27  45  33 /  40  10  10  40
RDM  45  27  45  34 /  20  10  10  20
LGD  43  32  41  34 /  60  30  10  50
GCD  43  25  41  31 /  30  30  10  30
DLS  50  35  49  40 /  40  20  10  30

&&

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

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

$$

94/99/99










000
FXUS66 KPDT 230545 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
944 PM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...EVENING UPDATE...A COLD FRONT MOVED THROUGH THE AREA
LATE THIS AFTERNOON. THIS FRONT CAUSED SHOWERS OVER THE AREA WITH
THE BEST SHOWERS NEAR THE CASCADES AND OVER THE BLUE MOUNTAINS AND
THE BLUE MOUNTAIN FOOTHILLS. THIS FRONT ALSO KICKED WINDS UP AT A
NUMBER OF LOCATIONS. MOST LOCATIONS WITH INCREASED WINDS HAVE SEEN
15 TO 25 MPH, THE ONE EXCEPTION HAS BEEN THE RIDGE JUST WEST OF
PENDLETON WHERE WINDS HAVE BEEN RUNNING 25 TO 35 MPH WITH HIGHER
GUSTS. WINDS ACROSS THE AREA HAVE DECREASED OR ARE DECREASING. THE
WINDS AT THE PENDLETON AIRPORT (ON THE PREVIOUSLY MENTIONED RIDGE)
WILL GRADUALLY DECREASE BUT WILL REMAIN RATHER BLUSTERY INTO EARLY
SUNDAY MORNING. WESTERLY FLOW HAS KEPT A FEW SHOWERS GOING NEAR THE
CASCADE CREST THROUGH THE EVENING, BUT SHOWERS HAVE LARGELY ENDED
ELSEWHERE. THE ONSHORE FLOW WILL KEEP SHOWERS GOING THROUGH THE
NIGHT NEAR THE CASCADES AND MAY CAUSE RENEWED SHOWERS OVER THE
INTERIOR MOUNTAINS OVERNIGHT. THE NEXT IN A SERIES OF DISTURBANCES
WILL MOVE ACROSS THE AREA SUNDAY. THIS SYSTEM WILL BRING VARYING
CHANCES OF RAIN AND MOUNTAIN SNOW TO THE AREA. ALSO WINDS WILL
BECOME BREEZY AT A NUMBER OF LOCATIONS AGAIN IN THE AFTERNOON AND
EVENING DUE TO THIS SYSTEM. UPDATES INVOLVED MAKING ADJUSTMENTS TO
WINDS, PRECIP CHANCES, SNOW LEVELS AND AMOUNTS, AND MINOR TWEAKS TO
TEMPS THROUGH SUNDAY. 90

.LONG TERM...PREVIOUS DISCUSSION...THE 12Z ECMWF AND GFS HAVE COME
INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD. RAIN AND
HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.

&&

.AVIATION...06Z TAFS...VFR CONDITIONS EXPECTED AT ALL TAF SITES
THROUGH THE PERIOD. A STRONG WEST TO NORTHWEST FLOW ALOFT WILL
CONTINUE OVER THE AREA. THIS...IN COMBINATION WITH SEVERAL WEAK
DISTURBANCES WILL ACT TO BRING PERIODIC SCT TO BKN MID LEVEL CLOUD
DECKS TO MOST TAF SITES THROUGHOUT THE TAF PERIOD. A SLIGHTLY BETTER
DEFINED DISTURBANCE WILL TRY TO WORK ITS WAY THROUGH THE AREA AFTER
23/21Z...BRINGING SOME -SHRA TO AND INVOF MOST TAF SITES. WINDS WILL
REMAIN GUSTY AT KPDT THROUGH THE NIGHT BEFORE A SHORT BREAK FROM
23/15-19Z. WIND GUSTS ARE THEN FORECAST TO INCREASE AGAIN...REACHING
25 TO 30 KTS AFTER 23/19Z FOR KPDT...KALW..AND KPSC TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  49  34  46 /  20  30  20  10
ALW  38  50  35  46 /  20  50  20  10
PSC  37  50  34  46 /  10  30  10  10
YKM  31  45  31  45 /  20  20  10  10
HRI  36  51  33  48 /  20  30  10  10
ELN  30  44  28  45 /  20  40  10  10
RDM  27  44  27  43 /  20  20  10  10
LGD  35  40  31  39 /  50  60  30  10
GCD  32  43  22  38 /  40  30  30  10
DLS  38  49  35  48 /  20  40  20  10

&&

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

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

$$

90/82/77







000
FXUS66 KPDT 230545 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
944 PM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...EVENING UPDATE...A COLD FRONT MOVED THROUGH THE AREA
LATE THIS AFTERNOON. THIS FRONT CAUSED SHOWERS OVER THE AREA WITH
THE BEST SHOWERS NEAR THE CASCADES AND OVER THE BLUE MOUNTAINS AND
THE BLUE MOUNTAIN FOOTHILLS. THIS FRONT ALSO KICKED WINDS UP AT A
NUMBER OF LOCATIONS. MOST LOCATIONS WITH INCREASED WINDS HAVE SEEN
15 TO 25 MPH, THE ONE EXCEPTION HAS BEEN THE RIDGE JUST WEST OF
PENDLETON WHERE WINDS HAVE BEEN RUNNING 25 TO 35 MPH WITH HIGHER
GUSTS. WINDS ACROSS THE AREA HAVE DECREASED OR ARE DECREASING. THE
WINDS AT THE PENDLETON AIRPORT (ON THE PREVIOUSLY MENTIONED RIDGE)
WILL GRADUALLY DECREASE BUT WILL REMAIN RATHER BLUSTERY INTO EARLY
SUNDAY MORNING. WESTERLY FLOW HAS KEPT A FEW SHOWERS GOING NEAR THE
CASCADE CREST THROUGH THE EVENING, BUT SHOWERS HAVE LARGELY ENDED
ELSEWHERE. THE ONSHORE FLOW WILL KEEP SHOWERS GOING THROUGH THE
NIGHT NEAR THE CASCADES AND MAY CAUSE RENEWED SHOWERS OVER THE
INTERIOR MOUNTAINS OVERNIGHT. THE NEXT IN A SERIES OF DISTURBANCES
WILL MOVE ACROSS THE AREA SUNDAY. THIS SYSTEM WILL BRING VARYING
CHANCES OF RAIN AND MOUNTAIN SNOW TO THE AREA. ALSO WINDS WILL
BECOME BREEZY AT A NUMBER OF LOCATIONS AGAIN IN THE AFTERNOON AND
EVENING DUE TO THIS SYSTEM. UPDATES INVOLVED MAKING ADJUSTMENTS TO
WINDS, PRECIP CHANCES, SNOW LEVELS AND AMOUNTS, AND MINOR TWEAKS TO
TEMPS THROUGH SUNDAY. 90

.LONG TERM...PREVIOUS DISCUSSION...THE 12Z ECMWF AND GFS HAVE COME
INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD. RAIN AND
HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.

&&

.AVIATION...06Z TAFS...VFR CONDITIONS EXPECTED AT ALL TAF SITES
THROUGH THE PERIOD. A STRONG WEST TO NORTHWEST FLOW ALOFT WILL
CONTINUE OVER THE AREA. THIS...IN COMBINATION WITH SEVERAL WEAK
DISTURBANCES WILL ACT TO BRING PERIODIC SCT TO BKN MID LEVEL CLOUD
DECKS TO MOST TAF SITES THROUGHOUT THE TAF PERIOD. A SLIGHTLY BETTER
DEFINED DISTURBANCE WILL TRY TO WORK ITS WAY THROUGH THE AREA AFTER
23/21Z...BRINGING SOME -SHRA TO AND INVOF MOST TAF SITES. WINDS WILL
REMAIN GUSTY AT KPDT THROUGH THE NIGHT BEFORE A SHORT BREAK FROM
23/15-19Z. WIND GUSTS ARE THEN FORECAST TO INCREASE AGAIN...REACHING
25 TO 30 KTS AFTER 23/19Z FOR KPDT...KALW..AND KPSC TAF SITES. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  49  34  46 /  20  30  20  10
ALW  38  50  35  46 /  20  50  20  10
PSC  37  50  34  46 /  10  30  10  10
YKM  31  45  31  45 /  20  20  10  10
HRI  36  51  33  48 /  20  30  10  10
ELN  30  44  28  45 /  20  40  10  10
RDM  27  44  27  43 /  20  20  10  10
LGD  35  40  31  39 /  50  60  30  10
GCD  32  43  22  38 /  40  30  30  10
DLS  38  49  35  48 /  20  40  20  10

&&

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

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

$$

90/82/77








000
FXUS66 KPDT 230537
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
937 PM PST SAT NOV 22 2014

.SHORT TERM...EVENING UPDATE...A COLD FRONT MOVED THROUGH THE AREA
LATE THIS AFTERNOON. THIS FRONT CAUSED SHOWERS OVER THE AREA WITH
THE BEST SHOWERS NEAR THE CASCADES AND OVER THE BLUE MOUNTAINS AND
THE BLUE MOUNTAIN FOOTHILLS. THIS FRONT ALSO KICKED WINDS UP AT A
NUMBER OF LOCATIONS. MOST LOCATIONS WITH INCREASED WINDS HAVE SEEN
15 TO 25 MPH, THE ONE EXCEPTION HAS BEEN THE RIDGE JUST WEST OF
PENDLETON WHERE WINDS HAVE BEEN RUNNING 25 TO 35 MPH WITH HIGHER
GUSTS. WINDS ACROSS THE AREA HAVE DECREASED OR ARE DECREASING. THE
WINDS AT THE PENDLETON AIRPORT (ON THE PREVIOUSLY MENTIONED RIDGE)
WILL GRADUALLY DECREASE BUT WILL REMAIN RATHER BLUSTERY INTO EARLY
SUNDAY MORNING. WESTERLY FLOW HAS KEPT A FEW SHOWERS GOING NEAR THE
CASCADE CREST THROUGH THE EVENING, BUT SHOWERS HAVE LARGELY ENDED
ELSEWHERE. THE ONSHORE FLOW WILL KEEP SHOWERS GOING THROUGH THE
NIGHT NEAR THE CASCADES AND MAY CAUSE RENEWED SHOWERS OVER THE
INTERIOR MOUNTAINS OVERNIGHT. THE NEXT IN A SERIES OF DISTURBANCES
WILL MOVE ACROSS THE AREA SUNDAY. THIS SYSTEM WILL BRING VARYING
CHANCES OF RAIN AND MOUNTAIN SNOW TO THE AREA. ALSO WINDS WILL
BECOME BREEZY AT A NUMBER OF LOCATIONS AGAIN IN THE AFTERNOON AND
EVENING DUE TO THIS SYSTEM. UPDATES INVOLVED MAKING ADJUSTMENTS TO
WINDS, PRECIP CHANCES, SNOW LEVELS AND AMOUNTS, AND MINOR TWEAKS TO
TEMPS THROUGH SUNDAY. 90

.LONG TERM...PREVIOUS DISCUSSION...THE 12Z ECMWF AND GFS HAVE COME
INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD. RAIN AND
HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.

&&

.AVIATION...PREVIOUS DISCUSSION...00Z TAFS...MAINLY VFR CONDITIONS
CAN NOW BE EXPECTED ACROSS THE AREA THE NEXT 24 HOURS. HOWEVER...
RAIN AT KALW WILL CAUSE MVFR CONDITIONS FOR THE NEXT HOUR. DUE TO
INCREASED WIND AND BETTER MIXING...DENSE FOG IS NOT LIKELY TO REFORM
OVERNIGHT. WINDS WILL INCREASE WITH GUSTS 20 TO 30 KTS. WINDS WILL
THEN BECOME STEADY 5 TO 12 KTS SUNDAY MORNING...BEFORE INCREASING
AGAIN SUNDAY AFTERNOON.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  49  34  46 /  20  30  20  10
ALW  38  50  35  46 /  20  50  20  10
PSC  37  50  34  46 /  10  30  10  10
YKM  31  45  31  45 /  20  20  10  10
HRI  36  51  33  48 /  20  30  10  10
ELN  30  44  28  45 /  20  40  10  10
RDM  27  44  27  43 /  20  20  10  10
LGD  35  40  31  39 /  50  60  30  10
GCD  32  43  22  38 /  40  30  30  10
DLS  38  49  35  48 /  20  40  20  10

&&

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

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

$$

90/82/77








000
FXUS66 KPDT 230537
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
937 PM PST SAT NOV 22 2014

.SHORT TERM...EVENING UPDATE...A COLD FRONT MOVED THROUGH THE AREA
LATE THIS AFTERNOON. THIS FRONT CAUSED SHOWERS OVER THE AREA WITH
THE BEST SHOWERS NEAR THE CASCADES AND OVER THE BLUE MOUNTAINS AND
THE BLUE MOUNTAIN FOOTHILLS. THIS FRONT ALSO KICKED WINDS UP AT A
NUMBER OF LOCATIONS. MOST LOCATIONS WITH INCREASED WINDS HAVE SEEN
15 TO 25 MPH, THE ONE EXCEPTION HAS BEEN THE RIDGE JUST WEST OF
PENDLETON WHERE WINDS HAVE BEEN RUNNING 25 TO 35 MPH WITH HIGHER
GUSTS. WINDS ACROSS THE AREA HAVE DECREASED OR ARE DECREASING. THE
WINDS AT THE PENDLETON AIRPORT (ON THE PREVIOUSLY MENTIONED RIDGE)
WILL GRADUALLY DECREASE BUT WILL REMAIN RATHER BLUSTERY INTO EARLY
SUNDAY MORNING. WESTERLY FLOW HAS KEPT A FEW SHOWERS GOING NEAR THE
CASCADE CREST THROUGH THE EVENING, BUT SHOWERS HAVE LARGELY ENDED
ELSEWHERE. THE ONSHORE FLOW WILL KEEP SHOWERS GOING THROUGH THE
NIGHT NEAR THE CASCADES AND MAY CAUSE RENEWED SHOWERS OVER THE
INTERIOR MOUNTAINS OVERNIGHT. THE NEXT IN A SERIES OF DISTURBANCES
WILL MOVE ACROSS THE AREA SUNDAY. THIS SYSTEM WILL BRING VARYING
CHANCES OF RAIN AND MOUNTAIN SNOW TO THE AREA. ALSO WINDS WILL
BECOME BREEZY AT A NUMBER OF LOCATIONS AGAIN IN THE AFTERNOON AND
EVENING DUE TO THIS SYSTEM. UPDATES INVOLVED MAKING ADJUSTMENTS TO
WINDS, PRECIP CHANCES, SNOW LEVELS AND AMOUNTS, AND MINOR TWEAKS TO
TEMPS THROUGH SUNDAY. 90

.LONG TERM...PREVIOUS DISCUSSION...THE 12Z ECMWF AND GFS HAVE COME
INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD. RAIN AND
HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.

&&

.AVIATION...PREVIOUS DISCUSSION...00Z TAFS...MAINLY VFR CONDITIONS
CAN NOW BE EXPECTED ACROSS THE AREA THE NEXT 24 HOURS. HOWEVER...
RAIN AT KALW WILL CAUSE MVFR CONDITIONS FOR THE NEXT HOUR. DUE TO
INCREASED WIND AND BETTER MIXING...DENSE FOG IS NOT LIKELY TO REFORM
OVERNIGHT. WINDS WILL INCREASE WITH GUSTS 20 TO 30 KTS. WINDS WILL
THEN BECOME STEADY 5 TO 12 KTS SUNDAY MORNING...BEFORE INCREASING
AGAIN SUNDAY AFTERNOON.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  49  34  46 /  20  30  20  10
ALW  38  50  35  46 /  20  50  20  10
PSC  37  50  34  46 /  10  30  10  10
YKM  31  45  31  45 /  20  20  10  10
HRI  36  51  33  48 /  20  30  10  10
ELN  30  44  28  45 /  20  40  10  10
RDM  27  44  27  43 /  20  20  10  10
LGD  35  40  31  39 /  50  60  30  10
GCD  32  43  22  38 /  40  30  30  10
DLS  38  49  35  48 /  20  40  20  10

&&

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

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

$$

90/82/77









000
FXUS66 KPDT 222341 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
340 PM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH MONDAY. THE LATEST IR SATL WAS SHOWING
COOLING CLOUD TOPS OVER THE EASTERN HALF OF THE REGION. RAIN SHOWERS
HAD DEVELOPED RAPIDLY OVER THIS SAME AREA AND WERE TRACKING EAST.
THE SHOWERS WERE ASSOCIATED WITH A LOW PRESSURE SYSTEM THAT IS
FORECAST TO MOVE ACROSS THE REGION TONIGHT. THE BEST CHANCES FOR
RAIN WILL BE OVER THE BLUE/WALLOWAS AND ALONG THE WA/OR CASCADES IN
A PERSISTENT UPSLOPE FLOW OVERNIGHT. SNOW LEVELS WILL HOVER AROUND
4K FEET WITH SOME SNOW ACCUMULATIONS POSSIBLE ABOVE THIS HEIGHT SUCH
AS IN TOLLGATE. AS THE LOW PRESSURE SYSTEM MOVES AWAY FROM THE AREA
OVERNIGHT...ANOTHER STORM WILL QUICKLY REPLACE THIS TOMORROW.

A SECOND LOW PRESSURE SYSTEM WILL DROP SOUTH FROM CANADA AND EFFECT
THE REGION SUNDAY. ANOTHER ROUND OF CLOUDS AND SHOWERS CAN BE
EXPECTED FOR MOST LOCATIONS BEFORE DRIER AIR INVADES THE REGION
EARLY MONDAY. ALTHOUGH THE SHOWERS MAY LINGER IN THE
MOUNTAINS...MOST AREAS WILL EXPERIENCE DRIER CONDITIONS WITH COOLER
MONDAY AFTERNOON HIGH TEMPERATURES.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY...THE 12Z ECMWF AND GFS
HAVE COME INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD.
RAIN AND HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.
COBB

&&

.AVIATION...00Z TAFS...MAINLY VFR CONDITIONS CAN NOW BE EXPECTED
ACROSS THE AREA THE NEXT 24 HOURS. HOWEVER...RAIN AT KALW WILL CAUSE
MVFR CONDITIONS FOR THE NEXT HOUR. DUE TO INCREASED WIND AND BETTER
MIXING...DENSE FOG IS NOT LIKELY TO REFORM OVERNIGHT. WINDS WILL
INCREASE WITH GUSTS 20 TO 30 KTS. WINDS WILL THEN BECOME STEADY 5 TO
12 KTS SUNDAY MORNING...BEFORE INCREASING AGAIN SUNDAY AFTERNOON.
82

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  47  34  46 /  20  30  20  10
ALW  38  47  35  46 /  20  40  20  10
PSC  37  49  34  46 /  20  30  10  10
YKM  29  46  31  45 /  20  20  10  10
HRI  37  49  33  48 /  20  30  10  10
ELN  31  44  28  45 /  20  30  10  10
RDM  28  45  27  43 /  30  20  10  10
LGD  36  39  31  39 /  50  60  30  10
GCD  29  41  22  38 /  40  30  30  10
DLS  37  47  35  48 /  30  40  20  10

&&

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

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

$$

97/82/82







000
FXUS66 KPDT 222341 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
340 PM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH MONDAY. THE LATEST IR SATL WAS SHOWING
COOLING CLOUD TOPS OVER THE EASTERN HALF OF THE REGION. RAIN SHOWERS
HAD DEVELOPED RAPIDLY OVER THIS SAME AREA AND WERE TRACKING EAST.
THE SHOWERS WERE ASSOCIATED WITH A LOW PRESSURE SYSTEM THAT IS
FORECAST TO MOVE ACROSS THE REGION TONIGHT. THE BEST CHANCES FOR
RAIN WILL BE OVER THE BLUE/WALLOWAS AND ALONG THE WA/OR CASCADES IN
A PERSISTENT UPSLOPE FLOW OVERNIGHT. SNOW LEVELS WILL HOVER AROUND
4K FEET WITH SOME SNOW ACCUMULATIONS POSSIBLE ABOVE THIS HEIGHT SUCH
AS IN TOLLGATE. AS THE LOW PRESSURE SYSTEM MOVES AWAY FROM THE AREA
OVERNIGHT...ANOTHER STORM WILL QUICKLY REPLACE THIS TOMORROW.

A SECOND LOW PRESSURE SYSTEM WILL DROP SOUTH FROM CANADA AND EFFECT
THE REGION SUNDAY. ANOTHER ROUND OF CLOUDS AND SHOWERS CAN BE
EXPECTED FOR MOST LOCATIONS BEFORE DRIER AIR INVADES THE REGION
EARLY MONDAY. ALTHOUGH THE SHOWERS MAY LINGER IN THE
MOUNTAINS...MOST AREAS WILL EXPERIENCE DRIER CONDITIONS WITH COOLER
MONDAY AFTERNOON HIGH TEMPERATURES.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY...THE 12Z ECMWF AND GFS
HAVE COME INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD.
RAIN AND HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.
COBB

&&

.AVIATION...00Z TAFS...MAINLY VFR CONDITIONS CAN NOW BE EXPECTED
ACROSS THE AREA THE NEXT 24 HOURS. HOWEVER...RAIN AT KALW WILL CAUSE
MVFR CONDITIONS FOR THE NEXT HOUR. DUE TO INCREASED WIND AND BETTER
MIXING...DENSE FOG IS NOT LIKELY TO REFORM OVERNIGHT. WINDS WILL
INCREASE WITH GUSTS 20 TO 30 KTS. WINDS WILL THEN BECOME STEADY 5 TO
12 KTS SUNDAY MORNING...BEFORE INCREASING AGAIN SUNDAY AFTERNOON.
82

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  47  34  46 /  20  30  20  10
ALW  38  47  35  46 /  20  40  20  10
PSC  37  49  34  46 /  20  30  10  10
YKM  29  46  31  45 /  20  20  10  10
HRI  37  49  33  48 /  20  30  10  10
ELN  31  44  28  45 /  20  30  10  10
RDM  28  45  27  43 /  30  20  10  10
LGD  36  39  31  39 /  50  60  30  10
GCD  29  41  22  38 /  40  30  30  10
DLS  37  47  35  48 /  30  40  20  10

&&

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

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

$$

97/82/82








000
FXUS66 KPDT 222227
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
210 PM PST SAT NOV 22 2014

.SHORT TERM...TONIGHT THROUGH MONDAY. THE LATEST IR SATL WAS SHOWING
COOLING CLOUD TOPS OVER THE EASTERN HALF OF THE REGION. RAIN SHOWERS
HAD DEVELOPED RAPIDLY OVER THIS SAME AREA AND WERE TRACKING EAST.
THE SHOWERS WERE ASSOCIATED WITH A LOW PRESSURE SYSTEM THAT IS
FORECAST TO MOVE ACROSS THE REGION TONIGHT. THE BEST CHANCES FOR
RAIN WILL BE OVER THE BLUE/WALLOWAS AND ALONG THE WA/OR CASCADES IN
A PERSISTENT UPSLOPE FLOW OVERNIGHT. SNOW LEVELS WILL HOVER AROUND
4K FEET WITH SOME SNOW ACCUMULATIONS POSSIBLE ABOVE THIS HEIGHT SUCH
AS IN TOLLGATE. AS THE LOW PRESSURE SYSTEM MOVES AWAY FROM THE AREA
OVERNIGHT...ANOTHER STORM WILL QUICKLY REPLACE THIS TOMORROW.

A SECOND LOW PRESSURE SYSTEM WILL DROP SOUTH FROM CANADA AND EFFECT
THE REGION SUNDAY. ANOTHER ROUND OF CLOUDS AND SHOWERS CAN BE
EXPECTED FOR MOST LOCATIONS BEFORE DRIER AIR INVADES THE REGION
EARLY MONDAY. ALTHOUGH THE SHOWERS MAY LINGER IN THE
MOUNTAINS...MOST AREAS WILL EXPERIENCE DRIER CONDITIONS WITH COOLER
MONDAY AFTERNOON HIGH TEMPERATURES.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY...THE 12Z ECMWF AND GFS
HAVE COME INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD.
RAIN AND HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.
COBB

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...CONDITIONS WILL BE UP
AND DOWN AGAIN TODAY AS MORE RAIN SHOWERS MOVE THROUGH.
HOWEVER...DUE TO INCREASED WINDS AND BETTER MIXING...FOG WILL NOT BE
AS MUCH OF A PROBLEM. CONDITIONS SHOULD REMAIN MOSTLY VFR BUT COULD
BRIEFLY BE MVFR IN THE RAIN OR DUE TO LOW CLOUDS. RAIN WILL TAPER
OFF EARLY EVENING WITH SOME PARTIAL CLEARING OVERNIGHT. WINDS WILL
INCREASE AGAIN THIS AFTERNOON WITH GUSTS 20 TO 30 KTS. WINDS WILL
THEN BECOME STEADY 5 TO 12 KTS SUNDAY MORNING.  82

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  47  34  46 /  20  30  20  10
ALW  38  47  35  46 /  20  40  20  10
PSC  37  49  34  46 /  20  30  10  10
YKM  29  46  31  45 /  20  20  10  10
HRI  37  49  33  48 /  20  30  10  10
ELN  31  44  28  45 /  20  30  10  10
RDM  28  45  27  43 /  30  20  10  10
LGD  36  39  31  39 /  50  60  30  10
GCD  29  41  22  38 /  40  30  30  10
DLS  37  47  35  48 /  30  40  20  10

&&

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

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

$$

97/82/82









000
FXUS66 KPDT 222227
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
210 PM PST SAT NOV 22 2014

.SHORT TERM...TONIGHT THROUGH MONDAY. THE LATEST IR SATL WAS SHOWING
COOLING CLOUD TOPS OVER THE EASTERN HALF OF THE REGION. RAIN SHOWERS
HAD DEVELOPED RAPIDLY OVER THIS SAME AREA AND WERE TRACKING EAST.
THE SHOWERS WERE ASSOCIATED WITH A LOW PRESSURE SYSTEM THAT IS
FORECAST TO MOVE ACROSS THE REGION TONIGHT. THE BEST CHANCES FOR
RAIN WILL BE OVER THE BLUE/WALLOWAS AND ALONG THE WA/OR CASCADES IN
A PERSISTENT UPSLOPE FLOW OVERNIGHT. SNOW LEVELS WILL HOVER AROUND
4K FEET WITH SOME SNOW ACCUMULATIONS POSSIBLE ABOVE THIS HEIGHT SUCH
AS IN TOLLGATE. AS THE LOW PRESSURE SYSTEM MOVES AWAY FROM THE AREA
OVERNIGHT...ANOTHER STORM WILL QUICKLY REPLACE THIS TOMORROW.

A SECOND LOW PRESSURE SYSTEM WILL DROP SOUTH FROM CANADA AND EFFECT
THE REGION SUNDAY. ANOTHER ROUND OF CLOUDS AND SHOWERS CAN BE
EXPECTED FOR MOST LOCATIONS BEFORE DRIER AIR INVADES THE REGION
EARLY MONDAY. ALTHOUGH THE SHOWERS MAY LINGER IN THE
MOUNTAINS...MOST AREAS WILL EXPERIENCE DRIER CONDITIONS WITH COOLER
MONDAY AFTERNOON HIGH TEMPERATURES.

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY...THE 12Z ECMWF AND GFS
HAVE COME INTO MUCH BETTER AGREEMENT THROUGH THE LONG TERM PERIOD.
RAIN AND HIGH MOUNTAIN SNOW WILL AGAIN BE POSSIBLE MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH. SOUTHWESTERLY WINDS WILL ALSO
INCREASE DURING THIS TIME AND DAYTIME TEMPERATURES WILL RISE INTO
THE 50S AS HIGH PRESSURE BUILDS FROM THE SOUTH. MUCH DRIER WEATHER
AND MILD TEMPERATURES CAN THEN BE EXPECTED TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT WITH THE STORM TRACK REMAINING TO THE NORTH. THE
RIDGE WILL START TO BREAK DOWN ON THURSDAY AND THERE WILL BE A
CHANCE OF LIGHT RAIN AS WELL AS SLIGHTLY COOLER TEMPERATURES.
PERIODS OF RAIN AND MOUNTAIN SNOW WILL BE POSSIBLE ON FRIDAY AND
SATURDAY AS A DEEP PACIFIC LOW APPROACHES THE PACIFIC NORTHWEST.
COBB

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...CONDITIONS WILL BE UP
AND DOWN AGAIN TODAY AS MORE RAIN SHOWERS MOVE THROUGH.
HOWEVER...DUE TO INCREASED WINDS AND BETTER MIXING...FOG WILL NOT BE
AS MUCH OF A PROBLEM. CONDITIONS SHOULD REMAIN MOSTLY VFR BUT COULD
BRIEFLY BE MVFR IN THE RAIN OR DUE TO LOW CLOUDS. RAIN WILL TAPER
OFF EARLY EVENING WITH SOME PARTIAL CLEARING OVERNIGHT. WINDS WILL
INCREASE AGAIN THIS AFTERNOON WITH GUSTS 20 TO 30 KTS. WINDS WILL
THEN BECOME STEADY 5 TO 12 KTS SUNDAY MORNING.  82

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  47  34  46 /  20  30  20  10
ALW  38  47  35  46 /  20  40  20  10
PSC  37  49  34  46 /  20  30  10  10
YKM  29  46  31  45 /  20  20  10  10
HRI  37  49  33  48 /  20  30  10  10
ELN  31  44  28  45 /  20  30  10  10
RDM  28  45  27  43 /  30  20  10  10
LGD  36  39  31  39 /  50  60  30  10
GCD  29  41  22  38 /  40  30  30  10
DLS  37  47  35  48 /  30  40  20  10

&&

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

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

$$

97/82/82










000
FXUS66 KPDT 221740 AAB
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
940 AM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.UPDATE...ANOTHER STORM SYSTEM WILL MOVE INTO THE TWO STATE AREA
TODAY INCREASING PCPN CHANCES ACROSS THE AREA. MOST TEMPERATURES
ACROSS THE REGION WERE ABOVE FREEZING EXCEPT FOR ISOLATED POCKETS
SUCH AS YKM BUT THIS SHOULD WARM ABOVE FREEZING THIS MORNING. A
WESTERLY FLOW WAS PRODUCING SOME DRIER AIR ACROSS PORTIONS OF THE
YKM VALLEY AND COLUMBIA BASIN AND HAVE REDUCED POPS AND SKY COVER
ACROSS THIS AREA THIS MORNING. FURTHER SOUTH MODERATE RA WAS FALLING
AT RDM AND HAVE INCREASED POPS AND QPF OVER CENTRAL OREGON TODAY.
THE PCPN WAS IN RESPONSE TO A LOW PRESSURE SYSTEM FORECAST TO TRACK
THROUGH THE REGION THAT WILL ALSO TIGHTEN PRESSURE GRADIENTS WHICH
MAY PRODUCE BREEZY CONDITIONS ACROSS SOME LOCATIONS AND HAVE
INCREASED WINDS AS WELL AS AFTN TEMPS A FEW DEGREES.

&&

.AVIATION...18Z TAFS...CONDITIONS WILL BE UP AND DOWN AGAIN TODAY AS
MORE RAIN SHOWERS MOVE THROUGH. HOWEVER...DUE TO INCREASED WINDS AND
BETTER MIXING...FOG WILL NOT BE AS MUCH OF A PROBLEM. CONDITIONS
SHOULD REMAIN MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN OR
DUE TO LOW CLOUDS. RAIN WILL TAPER OFF EARLY EVENING WITH SOME
PARTIAL CLEARING OVERNIGHT. WINDS WILL INCREASE AGAIN THIS AFTERNOON
WITH GUSTS 20 TO 30 KTS. WINDS WILL THEN BECOME STEADY 5 TO 12 KTS
SUNDAY MORNING.  82

&&

.PREV DISC... /ISSUED 400 AM PST SAT NOV 22 2014/

SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  35  47  34 /  40  20  30  20
ALW  50  37  47  35 /  40  20  30  20
PSC  49  36  49  34 /  20  20  30  10
YKM  48  29  46  31 /  20  20  30  10
HRI  50  36  49  33 /  30  20  30  10
ELN  44  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  70  30  20  10
LGD  48  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  45  36  47  35 /  50  30  40  20

&&

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

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

$$

97/








000
FXUS66 KPDT 221740 AAB
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
940 AM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.UPDATE...ANOTHER STORM SYSTEM WILL MOVE INTO THE TWO STATE AREA
TODAY INCREASING PCPN CHANCES ACROSS THE AREA. MOST TEMPERATURES
ACROSS THE REGION WERE ABOVE FREEZING EXCEPT FOR ISOLATED POCKETS
SUCH AS YKM BUT THIS SHOULD WARM ABOVE FREEZING THIS MORNING. A
WESTERLY FLOW WAS PRODUCING SOME DRIER AIR ACROSS PORTIONS OF THE
YKM VALLEY AND COLUMBIA BASIN AND HAVE REDUCED POPS AND SKY COVER
ACROSS THIS AREA THIS MORNING. FURTHER SOUTH MODERATE RA WAS FALLING
AT RDM AND HAVE INCREASED POPS AND QPF OVER CENTRAL OREGON TODAY.
THE PCPN WAS IN RESPONSE TO A LOW PRESSURE SYSTEM FORECAST TO TRACK
THROUGH THE REGION THAT WILL ALSO TIGHTEN PRESSURE GRADIENTS WHICH
MAY PRODUCE BREEZY CONDITIONS ACROSS SOME LOCATIONS AND HAVE
INCREASED WINDS AS WELL AS AFTN TEMPS A FEW DEGREES.

&&

.AVIATION...18Z TAFS...CONDITIONS WILL BE UP AND DOWN AGAIN TODAY AS
MORE RAIN SHOWERS MOVE THROUGH. HOWEVER...DUE TO INCREASED WINDS AND
BETTER MIXING...FOG WILL NOT BE AS MUCH OF A PROBLEM. CONDITIONS
SHOULD REMAIN MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN OR
DUE TO LOW CLOUDS. RAIN WILL TAPER OFF EARLY EVENING WITH SOME
PARTIAL CLEARING OVERNIGHT. WINDS WILL INCREASE AGAIN THIS AFTERNOON
WITH GUSTS 20 TO 30 KTS. WINDS WILL THEN BECOME STEADY 5 TO 12 KTS
SUNDAY MORNING.  82

&&

.PREV DISC... /ISSUED 400 AM PST SAT NOV 22 2014/

SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  35  47  34 /  40  20  30  20
ALW  50  37  47  35 /  40  20  30  20
PSC  49  36  49  34 /  20  20  30  10
YKM  48  29  46  31 /  20  20  30  10
HRI  50  36  49  33 /  30  20  30  10
ELN  44  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  70  30  20  10
LGD  48  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  45  36  47  35 /  50  30  40  20

&&

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

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

$$

97/







000
FXUS66 KPDT 221658 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
855 AM PST SAT NOV 22 2014

.UPDATE...ANOTHER STORM SYSTEM WILL MOVE INTO THE TWO STATE AREA
TODAY INCREASING PCPN CHANCES ACROSS THE AREA. MOST TEMPERATURES
ACROSS THE REGION WERE ABOVE FREEZING EXCEPT FOR ISOLATED POCKETS
SUCH AS YKM BUT THIS SHOULD WARM ABOVE FREEZING THIS MORNING. A
WESTERLY FLOW WAS PRODUCING SOME DRIER AIR ACROSS PORTIONS OF THE
YKM VALLEY AND COLUMBIA BASIN AND HAVE REDUCED POPS AND SKY COVER
ACROSS THIS AREA THIS MORNING. FURTHER SOUTH MODERATE RA WAS FALLING
AT RDM AND HAVE INCREASED POPS AND QPF OVER CENTRAL OREGON TODAY.
THE PCPN WAS IN RESPONSE TO A LOW PRESSURE SYSTEM FORECAST TO TRACK
THROUGH THE REGION THAT WILL ALSO TIGHTEN PRESSURE GRADIENTS WHICH
MAY PRODUCE BREEZY CONDITIONS ACROSS SOME LOCATIONS AND HAVE
INCREASED WINDS AS WELL AS AFTN TEMPS A FEW DEGREES.

&&

.PREV DISC... /ISSUED 400 AM PST SAT NOV 22 2014/

SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

AVIATION...12Z TAFS...IFR CONDITIONS IN FOG ARE EXPECTED AT KYKM
AND KPSC THIS MORNING. CONDITIONS SHOULD IMPROVE LATER THIS MORNING
AS WINDS INCREASE. RAIN WILL TAPER OFF EARLY THIS MORNING BUT PICK
UP AGAIN BY MIDDAY MAINLY ACROSS OREGON. CONDITIONS SHOULD REMAIN
MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN/RAIN SHOWERS. RAIN
WILL TAPER OFF BY EARLY EVENING WITH SOME PARTIAL CLEARING
OVERNIGHT. WINDS WILL VARY IN STRENGTH AT THE TAF SITES BUT WILL BE
STRONGEST AT KPDT...KALW...AND KPSC WITH SW-W WIND OF 15-30 KTS INTO
THIS EVENING 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  35  47  34 /  40  20  30  20
ALW  50  37  47  35 /  40  20  30  20
PSC  49  36  49  34 /  20  20  30  10
YKM  48  29  46  31 /  20  20  30  10
HRI  50  36  49  33 /  30  20  30  10
ELN  44  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  70  30  20  10
LGD  48  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  45  36  47  35 /  50  30  40  20

&&

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

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

$$

97/









000
FXUS66 KPDT 221658 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
855 AM PST SAT NOV 22 2014

.UPDATE...ANOTHER STORM SYSTEM WILL MOVE INTO THE TWO STATE AREA
TODAY INCREASING PCPN CHANCES ACROSS THE AREA. MOST TEMPERATURES
ACROSS THE REGION WERE ABOVE FREEZING EXCEPT FOR ISOLATED POCKETS
SUCH AS YKM BUT THIS SHOULD WARM ABOVE FREEZING THIS MORNING. A
WESTERLY FLOW WAS PRODUCING SOME DRIER AIR ACROSS PORTIONS OF THE
YKM VALLEY AND COLUMBIA BASIN AND HAVE REDUCED POPS AND SKY COVER
ACROSS THIS AREA THIS MORNING. FURTHER SOUTH MODERATE RA WAS FALLING
AT RDM AND HAVE INCREASED POPS AND QPF OVER CENTRAL OREGON TODAY.
THE PCPN WAS IN RESPONSE TO A LOW PRESSURE SYSTEM FORECAST TO TRACK
THROUGH THE REGION THAT WILL ALSO TIGHTEN PRESSURE GRADIENTS WHICH
MAY PRODUCE BREEZY CONDITIONS ACROSS SOME LOCATIONS AND HAVE
INCREASED WINDS AS WELL AS AFTN TEMPS A FEW DEGREES.

&&

.PREV DISC... /ISSUED 400 AM PST SAT NOV 22 2014/

SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

AVIATION...12Z TAFS...IFR CONDITIONS IN FOG ARE EXPECTED AT KYKM
AND KPSC THIS MORNING. CONDITIONS SHOULD IMPROVE LATER THIS MORNING
AS WINDS INCREASE. RAIN WILL TAPER OFF EARLY THIS MORNING BUT PICK
UP AGAIN BY MIDDAY MAINLY ACROSS OREGON. CONDITIONS SHOULD REMAIN
MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN/RAIN SHOWERS. RAIN
WILL TAPER OFF BY EARLY EVENING WITH SOME PARTIAL CLEARING
OVERNIGHT. WINDS WILL VARY IN STRENGTH AT THE TAF SITES BUT WILL BE
STRONGEST AT KPDT...KALW...AND KPSC WITH SW-W WIND OF 15-30 KTS INTO
THIS EVENING 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  49  35  47  34 /  40  20  30  20
ALW  50  37  47  35 /  40  20  30  20
PSC  49  36  49  34 /  20  20  30  10
YKM  48  29  46  31 /  20  20  30  10
HRI  50  36  49  33 /  30  20  30  10
ELN  44  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  70  30  20  10
LGD  48  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  45  36  47  35 /  50  30  40  20

&&

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

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

$$

97/










000
FXUS66 KPDT 221209
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PST SAT NOV 22 2014

.SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

&&

.AVIATION...12Z TAFS...IFR CONDITIONS IN FOG ARE EXPECTED AT KYKM
AND KPSC THIS MORNING. CONDITIONS SHOULD IMPROVE LATER THIS MORNING
AS WINDS INCREASE. RAIN WILL TAPER OFF EARLY THIS MORNING BUT PICK
UP AGAIN BY MIDDAY MAINLY ACROSS OREGON. CONDITIONS SHOULD REMAIN
MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN/RAIN SHOWERS. RAIN
WILL TAPER OFF BY EARLY EVENING WITH SOME PARTIAL CLEARING
OVERNIGHT. WINDS WILL VARY IN STRENGTH AT THE TAF SITES BUT WILL BE
STRONGEST AT KPDT...KALW...AND KPSC WITH SW-W WIND OF 15-30 KTS INTO
THIS EVENING 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  35  47  34 /  40  20  30  20
ALW  48  37  47  35 /  40  20  30  20
PSC  46  36  49  34 /  20  20  30  10
YKM  46  29  46  31 /  20  20  30  10
HRI  46  36  49  33 /  30  20  30  10
ELN  42  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  60  30  20  10
LGD  44  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  44  36  47  35 /  50  30  40  20

&&

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

&&

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

$$

94/78/78








000
FXUS66 KPDT 221209
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PST SAT NOV 22 2014

.SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

&&

.AVIATION...12Z TAFS...IFR CONDITIONS IN FOG ARE EXPECTED AT KYKM
AND KPSC THIS MORNING. CONDITIONS SHOULD IMPROVE LATER THIS MORNING
AS WINDS INCREASE. RAIN WILL TAPER OFF EARLY THIS MORNING BUT PICK
UP AGAIN BY MIDDAY MAINLY ACROSS OREGON. CONDITIONS SHOULD REMAIN
MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN/RAIN SHOWERS. RAIN
WILL TAPER OFF BY EARLY EVENING WITH SOME PARTIAL CLEARING
OVERNIGHT. WINDS WILL VARY IN STRENGTH AT THE TAF SITES BUT WILL BE
STRONGEST AT KPDT...KALW...AND KPSC WITH SW-W WIND OF 15-30 KTS INTO
THIS EVENING 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  35  47  34 /  40  20  30  20
ALW  48  37  47  35 /  40  20  30  20
PSC  46  36  49  34 /  20  20  30  10
YKM  46  29  46  31 /  20  20  30  10
HRI  46  36  49  33 /  30  20  30  10
ELN  42  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  60  30  20  10
LGD  44  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  44  36  47  35 /  50  30  40  20

&&

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

&&

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

$$

94/78/78







000
FXUS66 KPDT 221129
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
329 AM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

&&

.AVIATION...12Z TAFS...IFR CONDITIONS IN FOG ARE EXPECTED AT KYKM
AND KPSC THIS MORNING. CONDITIONS SHOULD IMPROVE LATER THIS MORNING
AS WINDS INCREASE. RAIN WILL TAPER OFF EARLY THIS MORNING BUT PICK
UP AGAIN BY MIDDAY MAINLY ACROSS OREGON. CONDITIONS SHOULD REMAIN
MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN/RAIN SHOWERS. RAIN
WILL TAPER OFF BY EARLY EVENING WITH SOME PARTIAL CLEARING
OVERNIGHT. WINDS WILL VARY IN STRENGTH AT THE TAF SITES BUT WILL BE
STRONGEST AT KPDT...KALW...AND KPSC WITH SW-W WIND OF 15-30 KTS INTO
THIS EVENING 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  35  47  34 /  40  20  30  20
ALW  48  37  47  35 /  40  20  30  20
PSC  46  36  49  34 /  20  20  30  10
YKM  46  29  46  31 /  20  20  30  10
HRI  46  36  49  33 /  30  20  30  10
ELN  42  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  60  30  20  10
LGD  44  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  44  36  47  35 /  50  30  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST EARLY THIS MORNING ORZ050.

     WIND ADVISORY UNTIL 4 AM PST EARLY THIS MORNING ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST THIS MORNING WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST EARLY THIS MORNING
WAZ026.

&&

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

$$

94/78/78







000
FXUS66 KPDT 221129
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
329 AM PST SAT NOV 22 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL
ARRIVE MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR
TUESDAY INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN
UNSEASONABLY WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS
EXCEPT FOR A FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR
ADVISORY LEVEL WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST
EARLY WEDNESDAY. ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE
REGION BEGINNING A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH
COOLER TEMPERATURES THURSDAY THROUGH SATURDAY. THE ECMWF ON THE
OTHER HAND KEEPS THE REGION UNDER WARM SOUTHERLY FLOW THROUGH THE
PERIOD WITH A CHANCE FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD
THE GFS ON TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

&&

.AVIATION...12Z TAFS...IFR CONDITIONS IN FOG ARE EXPECTED AT KYKM
AND KPSC THIS MORNING. CONDITIONS SHOULD IMPROVE LATER THIS MORNING
AS WINDS INCREASE. RAIN WILL TAPER OFF EARLY THIS MORNING BUT PICK
UP AGAIN BY MIDDAY MAINLY ACROSS OREGON. CONDITIONS SHOULD REMAIN
MOSTLY VFR BUT COULD BRIEFLY BE MVFR IN THE RAIN/RAIN SHOWERS. RAIN
WILL TAPER OFF BY EARLY EVENING WITH SOME PARTIAL CLEARING
OVERNIGHT. WINDS WILL VARY IN STRENGTH AT THE TAF SITES BUT WILL BE
STRONGEST AT KPDT...KALW...AND KPSC WITH SW-W WIND OF 15-30 KTS INTO
THIS EVENING 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  35  47  34 /  40  20  30  20
ALW  48  37  47  35 /  40  20  30  20
PSC  46  36  49  34 /  20  20  30  10
YKM  46  29  46  31 /  20  20  30  10
HRI  46  36  49  33 /  30  20  30  10
ELN  42  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  60  30  20  10
LGD  44  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  44  36  47  35 /  50  30  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST EARLY THIS MORNING ORZ050.

     WIND ADVISORY UNTIL 4 AM PST EARLY THIS MORNING ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST THIS MORNING WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST EARLY THIS MORNING
WAZ026.

&&

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

$$

94/78/78








000
FXUS66 KPDT 221053
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
300 AM PST SAT NOV 22 2014

.SHORT TERM...TODAY THROUGH SUNDAY. COLD FRONT WILL BE EXITING THE
REGION THIS MORNING. AREA OF STEADY RAIN OVER NORTHEAST OREGON WILL
MOVE EAST WITH THE FRONT. STRONG ONSHORE FLOW WILL MAINTAIN
RAIN/SNOW OVER THE CASCADES. A FAST MOVING SYSTEM SEEN ON SATELLITE
OFFSHORE WILL THEN MOVE THROUGH LATER THIS MORNING INTO THE
AFTERNOON. THIS WILL BRING ADDITIONAL CLOUDS AND PRECIPITATION.
FREEZING LEVELS WILL BE LOWER TODAY AND EXPECT SOME ACCUMULATING
SNOW IN THE MOUNTAINS ESPECIALLY THE CASCADES AND BLUES. IT WILL
REMAIN BREEZY TODAY FOR MANY LOCATIONS DUE TO STRONG WINDS ALOFT.
PRECIPITATION WILL DIMINISH TONIGHT WITH THE BEST CHANCES STILL OVER
THE CASCADES AND BLUES. ANOTHER SYSTEM IN THE NORTHWEST FLOW ALOFT
WILL MOVE THROUGH ON SUNDAY WITH RAIN AND MOUNTAIN SNOW. WASHINGTON
CASCADES LOOK TO PICK UP THE MOST PRECIP WITH THIS ONE AND SHOULD
SEE SOME ACCUMULATING SNOW. BREEZY CONDITIONS CONTINUE. HIGHS THE
NEXT FEW DAYS MOSTLY IN THE 30S MOUNTAINS AND 40S LOWER ELEVATIONS.
94

.LONG TERM...SUNDAY NIGHT THROUGH SATURDAY...MEDIUM RANGE MODELS ARE
IN GOOD AGREEMENT THROUGH EARLY NEXT WEEK THEN DIVERGE FROM MID WEEK
ONWARD. FOR SUNDAY NIGHT EXPECT RAIN AND HIGH MOUNTAIN SNOW TO TAPER
OFF OVERNIGHT AS A STORM SYSTEM EXITS THE AREA AND AN UPPER LEVEL
RIDGE BEGINS TO BUILD OVER THE PACIFIC NW. ANOTHER SYSTEM WILL ARRIVE
MONDAY EVENING WITH MORE RAIN AND HIGH MOUNTAIN SNOW. FOR TUESDAY
INTO EARLY WEDNESDAY THE FORECAST AREA WILL BE IN AN UNSEASONABLY
WARM SOUTHERLY FLOW REGIME WITH MAINLY DRY CONDITIONS EXCEPT FOR A
FEW MOUNTAIN SHOWERS. THERE WILL BE THE POTENTIAL FOR ADVISORY LEVEL
WINDS IN THE LOWER ELEVATIONS TUESDAY INTO AT LEAST EARLY WEDNESDAY.
ON WEDNESDAY THE GFS PUSHES A COLD FRONT ACROSS THE REGION BEGINNING
A DRY NORTHERLY FLOW OF CANADIAN AIR AND MUCH COOLER TEMPERATURES
THURSDAY THROUGH SATURDAY. THE ECMWF ON THE OTHER HAND KEEPS THE
REGION UNDER WARM SOUTHERLY FLOW THROUGH THE PERIOD WITH A CHANCE
FOR SHOWERS. FOR THIS FORECAST TRENDED TOWARD THE GFS ON
TEMPERATURES AND POPS BUT NOT COMPLETELY GIVEN THE MODEL
UNCERTAINTIES. 78

&&

.PREVIOUS AVIATION DISCUSSION...06Z TAFS...A STORM SYSTEM WILL
CONTINUE TO AFFECT THE REGION TONIGHT AND INTO THE DAY ON SATURDAY.
INTERMITTENT LIFR/IFR CIGS AND/OR VIS WILL BE POSSIBLE AT
KPSC...KDLS...KALW AND KYKM THROUGH THE OVERNIGHT HOURS IN LOW
CLOUDS AND REMNANT FOG...EXPECT SOME IMPROVEMENT BY 22/12Z AND
ESPECIALLY AFTER 22/18Z AS A COLD FRONT MOVES THROUGH AND MIXES UP
THE ATMOSPHERE. A PERIOD OF RAIN SHOWERS WILL BE POSSIBLE FOR THE
CENTRAL AND SOUTHERN TAF SITES THROUGH 22/12-15Z BEFORE MOVING OUT
OF THE AREA.THEN YET ANOTHER DISTURBANCE MAY BRING ADDITIONAL
SCATTERED SHOWERS/LOWER CIGS TO THE SOUTH-CENTRAL TAF SITES FROM
22/21Z TO ABOUT 23/02Z. WINDS ARE INCREASING OUT OF THE SOUTHWEST
THIS EVENING FOR MOST TAF SITES AND ARE EXPECTED TO REMAIN ELEVATED
THROUGH PERIOD...SOME OF THE STRONGEST WINDS WILL BE FOUND AT KPDT
AND KALW WHERE GUSTS MAY SURPASS 25-30KTS AT TIMES THROUGH SATURDAY
AFTERNOON. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  48  35  47  34 /  40  20  30  20
ALW  48  37  47  35 /  40  20  30  20
PSC  46  36  49  34 /  20  20  30  10
YKM  46  29  46  31 /  20  20  30  10
HRI  46  36  49  33 /  30  20  30  10
ELN  42  29  44  28 /  30  20  30  10
RDM  46  27  45  27 /  60  30  20  10
LGD  44  32  39  31 /  70  50  60  30
GCD  46  28  41  22 /  70  40  40  30
DLS  44  36  47  35 /  50  30  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST EARLY THIS MORNING ORZ050.

     WIND ADVISORY UNTIL 4 AM PST EARLY THIS MORNING ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST THIS MORNING WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST EARLY THIS MORNING WAZ026.

&&

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

$$

94/78/78









000
FXUS66 KPDT 220608
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1008 PM PST FRI NOV 21 2014

.SHORT TERM...EVENING UPDATE...THE LATEST PACIFIC SYSTEM CONTINUES
TO MOVE INTO THE PACIFIC NORTHWEST. THE SYSTEM`S COLD FRONT IS
NEARING THE WASHINGTON CASCADE CREST AND HAS MOVED THROUGH THE
WILLAMETTE VALLEY. EXPECT THE FRONT TO MOVE ACROSS THE INTERIOR
NORTHWEST BETWEEN 10 PM AND 3 AM PST. TEMPS IN THE YAKIMA VALLEY AND
THE WASHINGTON LOWER BASIN BELOW 700 FT MSL REMAIN AROUND 32
DEGREES, BUT EXPECT PRECIP AMOUNTS TO BE MINIMAL THE REST OF THE
NIGHT. ALSO EXPECT TEMPS TO MOVE INTO THE MID/UPPER 30S FOR A FEW
HOURS AFTER THE FRONT PASSES. THUS HAVE ALLOWED EARLIER ISSUED
WINTER WEATHER ADVISORY TO EXPIRE. PRECIP TRENDS MAY ALSO ALLOW AN
EARLY CANCELLATION OF THE WINTER HIGHLIGHT IN THE KITTITAS VALLEY.
ELSEWHERE FREEZING PRECIP HAS BEEN VERY SPOTTY, LIMITED TO THE LOWER
BASIN IN OREGON. WINDS HAVE INCREASED ALONG THE NORTH OREGON AND
WASHINGTON BLUE MOUNTAIN FOOTHILLS. AS SUCH HAVE ISSUED A WIND
ADVISORY FOR THESE ZONES. WINDS HAVE FINALLY KICKED IN SOUTHERN
GRANDE RONDE VALLEY AND WILL CONTINUE THE WIND ADVISORY IN THIS
AREA. WILL HAVE TO MONITOR WINDS WALLOWA COUNTY FOR POTENTIAL
ADVISORY. UPDATES THIS EVENING BESIDES THOSE ASSOCIATED WITH
HIGHLIGHT ADDITIONS FOCUSED ON ADJUSTING SNOW LEVELS, SNOW AMOUNTS
AND PRECIP CHANCES TONIGHT AND SATURDAY. 90

.LONG TERM...PREVIOUS DISCUSSION...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.

&&

.AVIATION...06Z TAFS...A STORM SYSTEM WILL CONTINUE TO AFFECT THE
REGION TONIGHT AND INTO THE DAY ON SATURDAY. INTERMITTENT LIFR/IFR
CIGS AND/OR VIS WILL BE POSSIBLE AT KPSC...KDLS...KALW AND KYKM
THROUGH THE OVERNIGHT HOURS IN LOW CLOUDS AND REMNANT FOG...EXPECT
SOME IMPROVEMENT BY 22/12Z AND ESPECIALLY AFTER 22/18Z AS A COLD
FRONT MOVES THROUGH AND MIXES UP THE ATMOSPHERE. A PERIOD OF RAIN
SHOWERS WILL BE POSSIBLE FOR THE CENTRAL AND SOUTHERN TAF SITES
THROUGH 22/12-15Z BEFORE MOVING OUT OF THE AREA.THEN YET ANOTHER
DISTURBANCE MAY BRING ADDITIONAL SCATTERED SHOWERS/LOWER CIGS TO THE
SOUTH-CENTRAL TAF SITES FROM 22/21Z TO ABOUT 23/02Z. WINDS ARE
INCREASING OUT OF THE SOUTHWEST THIS EVENING FOR MOST TAF SITES AND
ARE EXPECTED TO REMAIN ELEVATED THROUGH PERIOD...SOME OF THE
STRONGEST WINDS WILL BE FOUND AT KPDT AND KALW WHERE GUSTS MAY
SURPASS 25-30KTS AT TIMES THROUGH SATURDAY AFTERNOON. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  60  30  40
ALW  40  46  38  45 /  90  60  40  50
PSC  32  48  37  49 /  90  20  10  30
YKM  30  44  31  46 /  90  20  10  20
HRI  33  46  36  48 /  90  30  20  30
ELN  29  43  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  38  42  30  38 /  90  70  40  40
DLS  34  45  37  46 / 100  40  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 2 AM PST SATURDAY ORZ507.

     WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

     WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ050.

WA...WIND ADVISORY UNTIL 2 AM PST SATURDAY WAZ029.

     WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

90/82/77








000
FXUS66 KPDT 220608
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1008 PM PST FRI NOV 21 2014

.SHORT TERM...EVENING UPDATE...THE LATEST PACIFIC SYSTEM CONTINUES
TO MOVE INTO THE PACIFIC NORTHWEST. THE SYSTEM`S COLD FRONT IS
NEARING THE WASHINGTON CASCADE CREST AND HAS MOVED THROUGH THE
WILLAMETTE VALLEY. EXPECT THE FRONT TO MOVE ACROSS THE INTERIOR
NORTHWEST BETWEEN 10 PM AND 3 AM PST. TEMPS IN THE YAKIMA VALLEY AND
THE WASHINGTON LOWER BASIN BELOW 700 FT MSL REMAIN AROUND 32
DEGREES, BUT EXPECT PRECIP AMOUNTS TO BE MINIMAL THE REST OF THE
NIGHT. ALSO EXPECT TEMPS TO MOVE INTO THE MID/UPPER 30S FOR A FEW
HOURS AFTER THE FRONT PASSES. THUS HAVE ALLOWED EARLIER ISSUED
WINTER WEATHER ADVISORY TO EXPIRE. PRECIP TRENDS MAY ALSO ALLOW AN
EARLY CANCELLATION OF THE WINTER HIGHLIGHT IN THE KITTITAS VALLEY.
ELSEWHERE FREEZING PRECIP HAS BEEN VERY SPOTTY, LIMITED TO THE LOWER
BASIN IN OREGON. WINDS HAVE INCREASED ALONG THE NORTH OREGON AND
WASHINGTON BLUE MOUNTAIN FOOTHILLS. AS SUCH HAVE ISSUED A WIND
ADVISORY FOR THESE ZONES. WINDS HAVE FINALLY KICKED IN SOUTHERN
GRANDE RONDE VALLEY AND WILL CONTINUE THE WIND ADVISORY IN THIS
AREA. WILL HAVE TO MONITOR WINDS WALLOWA COUNTY FOR POTENTIAL
ADVISORY. UPDATES THIS EVENING BESIDES THOSE ASSOCIATED WITH
HIGHLIGHT ADDITIONS FOCUSED ON ADJUSTING SNOW LEVELS, SNOW AMOUNTS
AND PRECIP CHANCES TONIGHT AND SATURDAY. 90

.LONG TERM...PREVIOUS DISCUSSION...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.

&&

.AVIATION...06Z TAFS...A STORM SYSTEM WILL CONTINUE TO AFFECT THE
REGION TONIGHT AND INTO THE DAY ON SATURDAY. INTERMITTENT LIFR/IFR
CIGS AND/OR VIS WILL BE POSSIBLE AT KPSC...KDLS...KALW AND KYKM
THROUGH THE OVERNIGHT HOURS IN LOW CLOUDS AND REMNANT FOG...EXPECT
SOME IMPROVEMENT BY 22/12Z AND ESPECIALLY AFTER 22/18Z AS A COLD
FRONT MOVES THROUGH AND MIXES UP THE ATMOSPHERE. A PERIOD OF RAIN
SHOWERS WILL BE POSSIBLE FOR THE CENTRAL AND SOUTHERN TAF SITES
THROUGH 22/12-15Z BEFORE MOVING OUT OF THE AREA.THEN YET ANOTHER
DISTURBANCE MAY BRING ADDITIONAL SCATTERED SHOWERS/LOWER CIGS TO THE
SOUTH-CENTRAL TAF SITES FROM 22/21Z TO ABOUT 23/02Z. WINDS ARE
INCREASING OUT OF THE SOUTHWEST THIS EVENING FOR MOST TAF SITES AND
ARE EXPECTED TO REMAIN ELEVATED THROUGH PERIOD...SOME OF THE
STRONGEST WINDS WILL BE FOUND AT KPDT AND KALW WHERE GUSTS MAY
SURPASS 25-30KTS AT TIMES THROUGH SATURDAY AFTERNOON. 77

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  60  30  40
ALW  40  46  38  45 /  90  60  40  50
PSC  32  48  37  49 /  90  20  10  30
YKM  30  44  31  46 /  90  20  10  20
HRI  33  46  36  48 /  90  30  20  30
ELN  29  43  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  38  42  30  38 /  90  70  40  40
DLS  34  45  37  46 / 100  40  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 2 AM PST SATURDAY ORZ507.

     WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

     WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ050.

WA...WIND ADVISORY UNTIL 2 AM PST SATURDAY WAZ029.

     WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

90/82/77







000
FXUS66 KPDT 220547
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
946 PM PST FRI NOV 21 2014

.SHORT TERM...EVENING UPDATE...THE LATEST PACIFIC SYSTEM CONTINUES
TO MOVE INTO THE PACIFIC NORTHWEST. THE SYSTEM`S COLD FRONT IS
NEARING THE WASHINGTON CASCADE CREST AND HAS MOVED THROUGH THE
WILLAMETTE VALLEY. EXPECT THE FRONT TO MOVE ACROSS THE INTERIOR
NORTHWEST BETWEEN 10 PM AND 3 AM PST. TEMPS IN THE YAKIMA VALLEY AND
THE WASHINGTON LOWER BASIN BELOW 700 FT MSL REMAIN AROUND 32
DEGREES, BUT EXPECT PRECIP AMOUNTS TO BE MINIMAL THE REST OF THE
NIGHT. ALSO EXPECT TEMPS TO MOVE INTO THE MID/UPPER 30S FOR A FEW
HOURS AFTER THE FRONT PASSES. THUS HAVE ALLOWED EARLIER ISSUED
WINTER WEATHER ADVISORY TO EXPIRE. PRECIP TRENDS MAY ALSO ALLOW AN
EARLY CANCELLATION OF THE WINTER HIGHLIGHT IN THE KITTITAS VALLEY.
ELSEWHERE FREEZING PRECIP HAS BEEN VERY SPOTTY, LIMITED TO THE LOWER
BASIN IN OREGON. WINDS HAVE INCREASED ALONG THE NORTH OREGON AND
WASHINGTON BLUE MOUNTAIN FOOTHILLS. AS SUCH HAVE ISSUED A WIND
ADVISORY FOR THESE ZONES. WINDS HAVE FINALLY KICKED IN SOUTHERN
GRANDE RONDE VALLEY AND WILL CONTINUE THE WIND ADVISORY IN THIS
AREA. WILL HAVE TO MONITOR WINDS WALLOWA COUNTY FOR POTENTIAL
ADVISORY. UPDATES THIS EVENING BESIDES THOSE ASSOCIATED WITH
HIGHLIGHT ADDITIONS FOCUSED ON ADJUSTING SNOW LEVELS, SNOW AMOUNTS
AND PRECIP CHANCES TONIGHT AND SATURDAY. 90

.LONG TERM...PREVIOUS DISCUSSION...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.

&&

.AVIATION...PREVIOUS DISCUSSION...00Z TAFS...CONDITIONS WILL REMAIN
MVFR OR WORSE AT KDLS...KPDT...KYKM...KALW AND KPSC IN RAIN AND/OR
FOG THROUGH AT LEAST SATURDAY MORNING. FREEZING RAIN CAN BE EXPECTED
AT KPSC AND KYKM...BUT WITH TEMPERATURES RIGHT AT FREEZING
ACCUMULATIONS WILL BE MINIMAL. CEILINGS ARE ALSO STARTING TO DROP AT
KBDN AS THE RAIN MOVES IN. KRDM COULD REMAIN VFR...BUT CEILINGS WILL
LIKELY DROP THERE AS WELL. WINDS WILL INCREASE TONIGHT WITH THE
STRONGEST WINDS AFTER 12Z SATURDAY AND GUSTS OF 20 TO 30 KTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  60  30  40
ALW  40  46  38  45 /  90  60  40  50
PSC  32  48  37  49 /  90  20  10  30
YKM  30  44  31  46 /  90  20  10  20
HRI  33  46  36  48 /  90  30  20  30
ELN  29  43  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  38  42  30  38 /  90  70  40  40
DLS  34  45  37  46 / 100  40  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 2 AM PST SATURDAY ORZ507.

     WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

WA...WIND ADVISORY UNTIL 2 AM PST SATURDAY WAZ029.

     WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

90/82/77










000
FXUS66 KPDT 212342 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
342 PM PST FRI NOV 21 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A STORM SYSTEM
PRODUCING AREAS OF RAIN WILL INCREASE IN INTENSITY AND COVERAGE
TONIGHT ACROSS THE ENTIRE AREA. A WINTERY MIX IS EXPECTED ALONG THE
EAST SLOPES OF THE WASHINGTON CASCADES WHERE AN ADVISORY REMAINS IN
EFFECT INTO SATURDAY MORNING. ELSEWHERE PRESSURE GRADIENTS TIGHTEN
CREATING WINDY CONDITIONS OVER PORTIONS OF THE GRANDE RONDE VALLEY
TONIGHT. OTHERWISE THE BULK OF THE CLOUDS AND SHOWERS WILL SLOWLY
MOVE AWAY FROM THE AREA TOMORROW AS A COLD FRONT SWEEPS ACROSS THE
AREA LOWERING SNOW LEVELS. SHOWERS WILL REMAIN ACROSS THE AREA
SATURDAY AND PORTIONS OF THE REGION MAY BECOME BREEZY TO WINDY. ALSO
AN UPSLOPE FLOW IN THE BLUE MOUNTAINS COULD PRODUCE SEVERAL INCHES
OF SNOW ABOVE 3500 FEET INTO SATURDAY NIGHT.

.LONG TERM...SUNDAY THROUGH FRIDAY...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.  COBB

&&

.AVIATION...00Z TAFS...CONDITIONS WILL REMAIN MVFR OR WORSE AT
KDLS...KPDT...KYKM...KALW AND KPSC IN RAIN AND/OR FOG THROUGH AT
LEAST SATURDAY MORNING. FREEZING RAIN CAN BE EXPECTED AT KPSC AND
KYKM...BUT WITH TEMPERATURES RIGHT AT FREEZING ACCUMULATIONS WILL BE
MINIMAL. CEILINGS ARE ALSO STARTING TO DROP AT KBDN AS THE RAIN
MOVES IN. KRDM COULD REMAIN VFR...BUT CEILINGS WILL LIKELY DROP
THERE AS WELL. WINDS WILL INCREASE TONIGHT WITH THE STRONGEST WINDS
AFTER 12Z SATURDAY AND GUSTS OF 20 TO 30 KTS.  82

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  50  30  40
ALW  37  46  38  45 /  90  50  40  50
PSC  36  48  37  49 /  90  30  10  30
YKM  32  45  31  46 /  90  30  10  20
HRI  36  46  36  48 /  90  40  20  30
ELN  32  45  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  33  40  30  38 /  90  70  40  40
DLS  35  45  37  46 / 100  50  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

97/82/82








000
FXUS66 KPDT 212342 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
342 PM PST FRI NOV 21 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A STORM SYSTEM
PRODUCING AREAS OF RAIN WILL INCREASE IN INTENSITY AND COVERAGE
TONIGHT ACROSS THE ENTIRE AREA. A WINTERY MIX IS EXPECTED ALONG THE
EAST SLOPES OF THE WASHINGTON CASCADES WHERE AN ADVISORY REMAINS IN
EFFECT INTO SATURDAY MORNING. ELSEWHERE PRESSURE GRADIENTS TIGHTEN
CREATING WINDY CONDITIONS OVER PORTIONS OF THE GRANDE RONDE VALLEY
TONIGHT. OTHERWISE THE BULK OF THE CLOUDS AND SHOWERS WILL SLOWLY
MOVE AWAY FROM THE AREA TOMORROW AS A COLD FRONT SWEEPS ACROSS THE
AREA LOWERING SNOW LEVELS. SHOWERS WILL REMAIN ACROSS THE AREA
SATURDAY AND PORTIONS OF THE REGION MAY BECOME BREEZY TO WINDY. ALSO
AN UPSLOPE FLOW IN THE BLUE MOUNTAINS COULD PRODUCE SEVERAL INCHES
OF SNOW ABOVE 3500 FEET INTO SATURDAY NIGHT.

.LONG TERM...SUNDAY THROUGH FRIDAY...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.  COBB

&&

.AVIATION...00Z TAFS...CONDITIONS WILL REMAIN MVFR OR WORSE AT
KDLS...KPDT...KYKM...KALW AND KPSC IN RAIN AND/OR FOG THROUGH AT
LEAST SATURDAY MORNING. FREEZING RAIN CAN BE EXPECTED AT KPSC AND
KYKM...BUT WITH TEMPERATURES RIGHT AT FREEZING ACCUMULATIONS WILL BE
MINIMAL. CEILINGS ARE ALSO STARTING TO DROP AT KBDN AS THE RAIN
MOVES IN. KRDM COULD REMAIN VFR...BUT CEILINGS WILL LIKELY DROP
THERE AS WELL. WINDS WILL INCREASE TONIGHT WITH THE STRONGEST WINDS
AFTER 12Z SATURDAY AND GUSTS OF 20 TO 30 KTS.  82

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  50  30  40
ALW  37  46  38  45 /  90  50  40  50
PSC  36  48  37  49 /  90  30  10  30
YKM  32  45  31  46 /  90  30  10  20
HRI  36  46  36  48 /  90  40  20  30
ELN  32  45  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  33  40  30  38 /  90  70  40  40
DLS  35  45  37  46 / 100  50  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

97/82/82







000
FXUS66 KPDT 212231 CCA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
156 PM PST FRI NOV 21 2014

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A STORM SYSTEM
PRODUCING AREAS OF RAIN WILL INCREASE IN INTENSITY AND COVERAGE
TONIGHT ACROSS THE ENTIRE AREA. A WINTERY MIX IS EXPECTED ALONG THE
EAST SLOPES OF THE WASHINGTON CASCADES WHERE AN ADVISORY REMAINS IN
EFFECT INTO SATURDAY MORNING. ELSEWHERE PRESSURE GRADIENTS TIGHTEN
CREATING WINDY CONDITIONS OVER PORTIONS OF THE GRANDE RONDE VALLEY
TONIGHT. OTHERWISE THE BULK OF THE CLOUDS AND SHOWERS WILL SLOWLY
MOVE AWAY FROM THE AREA TOMORROW AS A COLD FRONT SWEEPS ACROSS THE
AREA LOWERING SNOW LEVELS. SHOWERS WILL REMAIN ACROSS THE AREA
SATURDAY AND PORTIONS OF THE REGION MAY BECOME BREEZY TO WINDY. ALSO
AN UPSLOPE FLOW IN THE BLUE MOUNTAINS COULD PRODUCE SEVERAL INCHES
OF SNOW ABOVE 3500 FEET INTO SATURDAY NIGHT.

.LONG TERM...SUNDAY THROUGH FRIDAY...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.  COBB

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...CONDITIONS WILL REMAIN
BELOW VFR AT KDLS...KPDT...KYKM...KALW AND KPSC IN FOG THROUGH AT
LEAST EARLY AFTERNOON. THERE MAY BE SOME IMPROVEMENT
THEREAFTER...BUT AS RAIN MOVES INTO THE AREA EXPECT CONDITIONS TO
ONCE AGAIN DETERIORATE DUE TO LOW CEILINGS. KRDM AND KBDN COULD
REMAIN VFR...BUT THEIR CEILINGS WILL LIKELY DROP AS WELL. RAIN WILL
CONTINUE THROUGH TONIGHT ALONG WITH MVFR/IFR VISIBILITIES IN FOG AND
HAZE. WINDS WILL INCREASE THIS AFTERNOON AND TONIGHT WITH THE
STRONGEST WINDS AFTER 12Z SATURDAY AND GUSTS OF 20 TO 30 KTS.  82



&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  50  30  40
ALW  37  46  38  45 /  90  50  40  50
PSC  36  48  37  49 /  90  30  10  30
YKM  32  45  31  46 /  90  30  10  20
HRI  36  46  36  48 /  90  40  20  30
ELN  32  45  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  33  40  30  38 /  90  70  40  40
DLS  35  45  37  46 / 100  50  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

97/82/82










000
FXUS66 KPDT 212229
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
156 PM PST FRI NOV 21 2014

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A STORM SYSTEM
PRODUCING AREAS OF RAIN WILL INCREASE IN INTENSITY AND COVERAGE
TONIGHT ACROSS THE ENTIRE AREA. A WINTERY MIX IS EXPECTED ALONG THE
EAST SLOPES OF THE WASHINGTON CASCADES WHERE AN ADVISORY REMAINS IN
EFFECT INTO SATURDAY MORNING. ELSEWHERE PRESSURE GRADIENTS TIGHTEN
CREATING WINDY CONDITIONS OVER PORTIONS OF THE GRANDE RONDE VALLEY
TONIGHT. OTHERWISE THE BULK OF THE CLOUDS AND SHOWERS WILL SLOWLY
MOVE AWAY FROM THE AREA TOMORROW AS A COLD FRONT SWEEPS ACROSS THE
AREA LOWERING SNOW LEVELS. WITH THE LEFT OVER MOISTURE AND UPSLOPE
FLOW THE BLUE MOUNTAINS COULD RECEIVE SEVERAL INCHES OF SNOW ABOVE
3500 FEET INTO SATURDAY NIGHT.

.LONG TERM...SUNDAY THROUGH FRIDAY...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.  COBB

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...CONDITIONS WILL REMAIN
BELOW VFR AT KDLS...KPDT...KYKM...KALW AND KPSC IN FOG THROUGH AT
LEAST EARLY AFTERNOON. THERE MAY BE SOME IMPROVEMENT
THEREAFTER...BUT AS RAIN MOVES INTO THE AREA EXPECT CONDITIONS TO
ONCE AGAIN DETERIORATE DUE TO LOW CEILINGS. KRDM AND KBDN COULD
REMAIN VFR...BUT THEIR CEILINGS WILL LIKELY DROP AS WELL. RAIN WILL
CONTINUE THROUGH TONIGHT ALONG WITH MVFR/IFR VISIBILITIES IN FOG AND
HAZE. WINDS WILL INCREASE THIS AFTERNOON AND TONIGHT WITH THE
STRONGEST WINDS AFTER 12Z SATURDAY AND GUSTS OF 20 TO 30 KTS.  82



&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  50  30  40
ALW  37  46  38  45 /  90  50  40  50
PSC  36  48  37  49 /  90  30  10  30
YKM  32  45  31  46 /  90  30  10  20
HRI  36  46  36  48 /  90  40  20  30
ELN  32  45  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  33  40  30  38 /  90  70  40  40
DLS  35  45  37  46 / 100  50  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

97/82/82










000
FXUS66 KPDT 212229
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
156 PM PST FRI NOV 21 2014

.SHORT TERM...TONIGHT THROUGH SATURDAY NIGHT. A STORM SYSTEM
PRODUCING AREAS OF RAIN WILL INCREASE IN INTENSITY AND COVERAGE
TONIGHT ACROSS THE ENTIRE AREA. A WINTERY MIX IS EXPECTED ALONG THE
EAST SLOPES OF THE WASHINGTON CASCADES WHERE AN ADVISORY REMAINS IN
EFFECT INTO SATURDAY MORNING. ELSEWHERE PRESSURE GRADIENTS TIGHTEN
CREATING WINDY CONDITIONS OVER PORTIONS OF THE GRANDE RONDE VALLEY
TONIGHT. OTHERWISE THE BULK OF THE CLOUDS AND SHOWERS WILL SLOWLY
MOVE AWAY FROM THE AREA TOMORROW AS A COLD FRONT SWEEPS ACROSS THE
AREA LOWERING SNOW LEVELS. WITH THE LEFT OVER MOISTURE AND UPSLOPE
FLOW THE BLUE MOUNTAINS COULD RECEIVE SEVERAL INCHES OF SNOW ABOVE
3500 FEET INTO SATURDAY NIGHT.

.LONG TERM...SUNDAY THROUGH FRIDAY...ACTIVE WEATHER WILL CONTINUE
THROUGH TUESDAY. MODELS ARE IN RELATIVE AGREEMENT THAT AN NORTHWEST
FLOW ALOFT WILL BRING A SHORTWAVE DISTURBANCE THROUGH ON SUNDAY FOR
A CHANCE OF SNOW IN THE MOUNTAINS AND OF RAIN AT THE LOWER
ELEVATIONS. BREEZY SOUTHWEST WINDS CAN ALSO BE EXPECTED. THERE WILL
THEN BE A BRIEF BREAK ON MONDAY DUE TO A BUILDING RIDGE OF HIGH
PRESSURE. RAIN WILL RETURN TO THE REGION MONDAY NIGHT AND
TUESDAY...ESPECIALLY TO THE NORTH...ALONG WITH WARMER TEMPERATURES.
HIGHS IN THE LOWER ELEVATIONS COULD REACH AT LEAST THE LOWER 50S. ON
TUESDAY NIGHT AND WEDNESDAY...THE GFS AND ECMWF HAVE FINALLY COME
INTO AGREEMENT ON A STRONGER HIGH PRESSURE RIDGE AND CONSEQUENT
DRIER CONDITIONS WITH CONTINUED MILD TEMPERATURES. THE RIDGE WILL
THEN SHIFT EAST ON THURSDAY AND A WEAK DISTURBANCE WILL MOVE THROUGH
WITH SOME LIGHT SHOWERS. SLIGHTLY COOLER WEATHER CAN THEN BE
EXPECTED FRIDAY AS A TROUGH DEEPENS OVER THE AREA AND BRINGS MORE
RAIN SHOWERS AND SOME MOUNTAIN SNOW.  COBB

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...CONDITIONS WILL REMAIN
BELOW VFR AT KDLS...KPDT...KYKM...KALW AND KPSC IN FOG THROUGH AT
LEAST EARLY AFTERNOON. THERE MAY BE SOME IMPROVEMENT
THEREAFTER...BUT AS RAIN MOVES INTO THE AREA EXPECT CONDITIONS TO
ONCE AGAIN DETERIORATE DUE TO LOW CEILINGS. KRDM AND KBDN COULD
REMAIN VFR...BUT THEIR CEILINGS WILL LIKELY DROP AS WELL. RAIN WILL
CONTINUE THROUGH TONIGHT ALONG WITH MVFR/IFR VISIBILITIES IN FOG AND
HAZE. WINDS WILL INCREASE THIS AFTERNOON AND TONIGHT WITH THE
STRONGEST WINDS AFTER 12Z SATURDAY AND GUSTS OF 20 TO 30 KTS.  82



&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  45  35  45 /  90  50  30  40
ALW  37  46  38  45 /  90  50  40  50
PSC  36  48  37  49 /  90  30  10  30
YKM  32  45  31  46 /  90  30  10  20
HRI  36  46  36  48 /  90  40  20  30
ELN  32  45  31  44 /  90  30  10  30
RDM  37  46  25  41 /  90  50  40  10
LGD  38  41  32  38 /  90  70  50  60
GCD  33  40  30  38 /  90  70  40  40
DLS  35  45  37  46 / 100  50  30  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 4 AM PST SATURDAY ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

97/82/82









000
FXUS66 KPDT 212012 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1205 PM PST FRI NOV 21 2014

.UPDATE...THE DENSE FOG HAD DECREASED ACROSS THE BLUE MOUNTAIN
FOOTHILLS. ALSO AS A STORM SYSTEM PUSHES INTO THE PACNW...THIS HAS
ALLOWED FOR THE MIXING OF THE ATMOSPHERE. THUS THE ZONES HAD BEEN
UPDATED TO REMOVE THE DENSE FOG AND AIR STAGNATION HEADLINES.
THEREFORE THE PRESENT SHORT TERM FORECAST APPEARS ON TRACK WITH
CLOUDS AND SHOWERS TO INCREASE IN COVERAGE ACROSS THE REGION. IN
ADDITION THE WIND ADVISORY OVER THE GRANDE RONDE AND THE WINTER
WEATHER ADVISORY CONTINUES ALONG THE EAST SLOPES OF THE WA CASCADES.
&&

.PREV DISC... /ISSUED 940 AM PST FRI NOV 21 2014/

UPDATE...THE LATEST SFC OBS WERE CONTINUING TO SHOW AREAS OF FOG
OVER THE BASIN WHERE THE DENSE FOG ADVISORY REMAINS IN EFFECT THIS
MORNING. OTHERWISE ANOTHER STORM WILL TAKE AIM ON THE PACNW AND
SPREAD CLOUDS AND SHOWERS TO THE ENTIRE AREA. SOME COLD AIR IS
FORECAST TO REMAIN TRAPPED ALONG THE EAST SLOPES OF THE WA CASCADES
WHICH IS EXPECTED TO PRODUCE A MIX OF FROZEN PCPN THAT HAS PROMPTED
A WINTER WEATHER ADVISORY FOR TODAY AND THIS EVENING. ELSEWHERE
PRESSURE GRADIENTS TIGHTEN PRODUCING WINDY CONDITIONS OVER PORTIONS
OF THE GRANDE RONDE VALLEY LATER TODAY AND TONIGHT. OTHER THAN SOME
MINOR ADJUSTMENTS TO SKY COVER AND TEMPS AND THE PRESENT SHORT TERM
FORECAST REMAINS ON TRACK FOR NOW.

AVIATION DISCUSSION...18Z TAFS...CONDITIONS WILL REMAIN BELOW VFR
AT KDLS...KPDT...KYKM...KALW AND KPSC IN FOG THROUGH AT LEAST EARLY
AFTERNOON. THERE MAY BE SOME IMPROVEMENT THEREAFTER...BUT AS RAIN
MOVES INTO THE AREA EXPECT CONDITIONS TO ONCE AGAIN DETERIORATE DUE
TO LOW CEILINGS. KRDM AND KBDN COULD REMAIN VFR...BUT THEIR CEILINGS
WILL LIKELY DROP AS WELL. RAIN WILL CONTINUE THROUGH TONIGHT ALONG
WITH MVFR/IFR VISIBILITIES IN FOG AND HAZE. WINDS WILL INCREASE THIS
AFTERNOON AND TONIGHT WITH THE STRONGEST WINDS AFTER 12Z SATURDAY
AND GUSTS OF 20 TO 30 KTS.  82

PREV DISC... /ISSUED 319 AM PST FRI NOV 21 2014/

SHORT TERM...TODAY THROUGH SATURDAY. CLEARING SKIES OVERNIGHT HAS
ALLOWED FAIRLY WIDESPREAD LOW CLOUDS AND FOG TO DEVELOP ACROSS THE
REGION. WITH INCREASING MID AND HIGH LEVEL CLOUDS TODAY THE FOG AND
STRATUS WILL BE SLOW TO CLEAR. DENSE FOG LIKELY ALONG THE BLUE
MOUNTAIN FOOTHILLS. NEXT SYSTEM APPROACHING THE PACIFIC NORTHWEST
HAS A GOOD DEAL OF MOISTURE WITH IT. RAIN WILL OVERSPREAD THE AREA
THIS AFTERNOON AND CONTINUE TONIGHT. SOME HEAVIER RAIN IS LIKELY
OVER THE CASCADES AND NORTHEAST OREGON MOUNTAINS. COLDER AIR ALONG
THE WASHINGTON EAST SLOPES WILL RESULT IN A MIX OF RAIN, FREEZING
RAIN AND SNOW. A WINTER WEATHER ADVISORY HAS BEEN ISSUED FOR THIS.
THE COLD FRONT MOVES THROUGH OVERNIGHT. THIS WILL LOWER SNOW LEVELS
ACROSS THE REGION INTO SATURDAY HOWEVER PRECIPITATION WILL BE
DIMINISHING. THIS FRONTAL PASSAGE WILL BREAK THE LOW LEVEL
INVERSIONS CLEARING OUT THE FOG AND STRATUS AND ENDING THE AIR
STAGNATION EVENT. STRONGER WINDS ALOFT COMBINED WITH THE SURFACE
GRADIENTS WILL CREATE BREEZY TO WINDY CONDITIONS LATER TODAY INTO
SATURDAY. 94

LONG TERM...SATURDAY NIGHT THROUGH FRIDAY...ACTIVE WEATHER IS IN
STORE FOR MUCH OF THE PERIOD AS SEVERAL STORM SYSTEMS WILL MOVE
ACROSS THE REGION ESPECIALLY PRIOR TO THURSDAY. MODELS ARE IN
RELATIVE AGREEMENT THROUGH WEDNESDAY THEN DIVERGE AFTERWARDS WITH
THE GFS TRENDING TOWARD COLDER WEATHER AND THE ECMWF MILDER WEATHER
WITH AN UPPER LEVEL RIDGE. FOR SATURDAY NIGHT RAIN AND HIGHER
MOUNTAIN SNOW WILL BEGIN TO TAPER OFF AS A SHORTWAVE TROUGH EXITS
THE AREA TO THE EAST. HOWEVER ANOTHER SYSTEM WILL BE ON ITS HEELS ON
SUNDAY WITH A GOOD CHANCE FOR MOSTLY RAIN AREAWIDE. RAIN WILL TAPER
OFF ON MONDAY AS HEIGHTS BEGIN TO RISE WITH A BUILDING RIDGE OF HIGH
PRESSURE. RAIN COULD RETURN TO THE REGION TUESDAY AND WEDNESDAY
ESPECIALLY NORTH ALONG WITH WARM TEMPERATURES. HIGHS IN THE LOWER
ELEVATIONS COULD REACH AT LEAST THE LOWER 50S BOTH DAYS. IF THE GFS
MODEL IS CORRECT IT COULD TURN NOTICEABLY COOLER FOR THURSDAY AND
FRIDAY AS MORE ARCTIC AIR BEGINS TO SPILL SWWD ACROSS THE CANADIAN
ROCKIES. FOR NOW HAVE JUST SHOWED A COOLING TREND BUT NOT TO THE
EXTENT THAT THE GFS WOULD INDICATE. IT WILL BE BREEZY TO LOCALLY
WINDY OFF AND ON SUNDAY THROUGH WEDNESDAY LOWER ELEVATIONS AND
EXPOSED RIDGES. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  42  37  45  36 /  30  90  50  30
ALW  41  37  46  39 /  30  90  50  40
PSC  39  36  48  38 /  30  90  30  10
YKM  36  32  45  32 /  70  90  30  10
HRI  40  36  46  37 /  30  90  40  20
ELN  35  32  45  32 /  80  90  30  10
RDM  44  37  44  26 /  70  90  50  40
LGD  41  38  41  33 /  20  90  70  50
GCD  43  33  40  31 /  30  90  70  40
DLS  37  35  45  38 /  80 100  50  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY FROM 4 PM THIS AFTERNOON TO 4 AM PST SATURDAY
     ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

97/









000
FXUS66 KPDT 212012 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1205 PM PST FRI NOV 21 2014

.UPDATE...THE DENSE FOG HAD DECREASED ACROSS THE BLUE MOUNTAIN
FOOTHILLS. ALSO AS A STORM SYSTEM PUSHES INTO THE PACNW...THIS HAS
ALLOWED FOR THE MIXING OF THE ATMOSPHERE. THUS THE ZONES HAD BEEN
UPDATED TO REMOVE THE DENSE FOG AND AIR STAGNATION HEADLINES.
THEREFORE THE PRESENT SHORT TERM FORECAST APPEARS ON TRACK WITH
CLOUDS AND SHOWERS TO INCREASE IN COVERAGE ACROSS THE REGION. IN
ADDITION THE WIND ADVISORY OVER THE GRANDE RONDE AND THE WINTER
WEATHER ADVISORY CONTINUES ALONG THE EAST SLOPES OF THE WA CASCADES.
&&

.PREV DISC... /ISSUED 940 AM PST FRI NOV 21 2014/

UPDATE...THE LATEST SFC OBS WERE CONTINUING TO SHOW AREAS OF FOG
OVER THE BASIN WHERE THE DENSE FOG ADVISORY REMAINS IN EFFECT THIS
MORNING. OTHERWISE ANOTHER STORM WILL TAKE AIM ON THE PACNW AND
SPREAD CLOUDS AND SHOWERS TO THE ENTIRE AREA. SOME COLD AIR IS
FORECAST TO REMAIN TRAPPED ALONG THE EAST SLOPES OF THE WA CASCADES
WHICH IS EXPECTED TO PRODUCE A MIX OF FROZEN PCPN THAT HAS PROMPTED
A WINTER WEATHER ADVISORY FOR TODAY AND THIS EVENING. ELSEWHERE
PRESSURE GRADIENTS TIGHTEN PRODUCING WINDY CONDITIONS OVER PORTIONS
OF THE GRANDE RONDE VALLEY LATER TODAY AND TONIGHT. OTHER THAN SOME
MINOR ADJUSTMENTS TO SKY COVER AND TEMPS AND THE PRESENT SHORT TERM
FORECAST REMAINS ON TRACK FOR NOW.

AVIATION DISCUSSION...18Z TAFS...CONDITIONS WILL REMAIN BELOW VFR
AT KDLS...KPDT...KYKM...KALW AND KPSC IN FOG THROUGH AT LEAST EARLY
AFTERNOON. THERE MAY BE SOME IMPROVEMENT THEREAFTER...BUT AS RAIN
MOVES INTO THE AREA EXPECT CONDITIONS TO ONCE AGAIN DETERIORATE DUE
TO LOW CEILINGS. KRDM AND KBDN COULD REMAIN VFR...BUT THEIR CEILINGS
WILL LIKELY DROP AS WELL. RAIN WILL CONTINUE THROUGH TONIGHT ALONG
WITH MVFR/IFR VISIBILITIES IN FOG AND HAZE. WINDS WILL INCREASE THIS
AFTERNOON AND TONIGHT WITH THE STRONGEST WINDS AFTER 12Z SATURDAY
AND GUSTS OF 20 TO 30 KTS.  82

PREV DISC... /ISSUED 319 AM PST FRI NOV 21 2014/

SHORT TERM...TODAY THROUGH SATURDAY. CLEARING SKIES OVERNIGHT HAS
ALLOWED FAIRLY WIDESPREAD LOW CLOUDS AND FOG TO DEVELOP ACROSS THE
REGION. WITH INCREASING MID AND HIGH LEVEL CLOUDS TODAY THE FOG AND
STRATUS WILL BE SLOW TO CLEAR. DENSE FOG LIKELY ALONG THE BLUE
MOUNTAIN FOOTHILLS. NEXT SYSTEM APPROACHING THE PACIFIC NORTHWEST
HAS A GOOD DEAL OF MOISTURE WITH IT. RAIN WILL OVERSPREAD THE AREA
THIS AFTERNOON AND CONTINUE TONIGHT. SOME HEAVIER RAIN IS LIKELY
OVER THE CASCADES AND NORTHEAST OREGON MOUNTAINS. COLDER AIR ALONG
THE WASHINGTON EAST SLOPES WILL RESULT IN A MIX OF RAIN, FREEZING
RAIN AND SNOW. A WINTER WEATHER ADVISORY HAS BEEN ISSUED FOR THIS.
THE COLD FRONT MOVES THROUGH OVERNIGHT. THIS WILL LOWER SNOW LEVELS
ACROSS THE REGION INTO SATURDAY HOWEVER PRECIPITATION WILL BE
DIMINISHING. THIS FRONTAL PASSAGE WILL BREAK THE LOW LEVEL
INVERSIONS CLEARING OUT THE FOG AND STRATUS AND ENDING THE AIR
STAGNATION EVENT. STRONGER WINDS ALOFT COMBINED WITH THE SURFACE
GRADIENTS WILL CREATE BREEZY TO WINDY CONDITIONS LATER TODAY INTO
SATURDAY. 94

LONG TERM...SATURDAY NIGHT THROUGH FRIDAY...ACTIVE WEATHER IS IN
STORE FOR MUCH OF THE PERIOD AS SEVERAL STORM SYSTEMS WILL MOVE
ACROSS THE REGION ESPECIALLY PRIOR TO THURSDAY. MODELS ARE IN
RELATIVE AGREEMENT THROUGH WEDNESDAY THEN DIVERGE AFTERWARDS WITH
THE GFS TRENDING TOWARD COLDER WEATHER AND THE ECMWF MILDER WEATHER
WITH AN UPPER LEVEL RIDGE. FOR SATURDAY NIGHT RAIN AND HIGHER
MOUNTAIN SNOW WILL BEGIN TO TAPER OFF AS A SHORTWAVE TROUGH EXITS
THE AREA TO THE EAST. HOWEVER ANOTHER SYSTEM WILL BE ON ITS HEELS ON
SUNDAY WITH A GOOD CHANCE FOR MOSTLY RAIN AREAWIDE. RAIN WILL TAPER
OFF ON MONDAY AS HEIGHTS BEGIN TO RISE WITH A BUILDING RIDGE OF HIGH
PRESSURE. RAIN COULD RETURN TO THE REGION TUESDAY AND WEDNESDAY
ESPECIALLY NORTH ALONG WITH WARM TEMPERATURES. HIGHS IN THE LOWER
ELEVATIONS COULD REACH AT LEAST THE LOWER 50S BOTH DAYS. IF THE GFS
MODEL IS CORRECT IT COULD TURN NOTICEABLY COOLER FOR THURSDAY AND
FRIDAY AS MORE ARCTIC AIR BEGINS TO SPILL SWWD ACROSS THE CANADIAN
ROCKIES. FOR NOW HAVE JUST SHOWED A COOLING TREND BUT NOT TO THE
EXTENT THAT THE GFS WOULD INDICATE. IT WILL BE BREEZY TO LOCALLY
WINDY OFF AND ON SUNDAY THROUGH WEDNESDAY LOWER ELEVATIONS AND
EXPOSED RIDGES. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  42  37  45  36 /  30  90  50  30
ALW  41  37  46  39 /  30  90  50  40
PSC  39  36  48  38 /  30  90  30  10
YKM  36  32  45  32 /  70  90  30  10
HRI  40  36  46  37 /  30  90  40  20
ELN  35  32  45  32 /  80  90  30  10
RDM  44  37  44  26 /  70  90  50  40
LGD  41  38  41  33 /  20  90  70  50
GCD  43  33  40  31 /  30  90  70  40
DLS  37  35  45  38 /  80 100  50  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY FROM 4 PM THIS AFTERNOON TO 4 AM PST SATURDAY
     ORZ049.

WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST SATURDAY WAZ520.

     WINTER WEATHER ADVISORY UNTIL 4 AM PST SATURDAY WAZ026.

&&

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

$$

97/










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