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000
FXUS66 KPDT 020539 AAB
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1035 PM PDT WED APR 1 2015

UPDATED THE AVIATION DISCUSSION

.UPDATE...SHOWERS WERE PERSISTING OVER OUR EXTREME NORTHERN ZONES
AND THE GRIDS WERE UPDATED TO REFLECT THIS ALONG WITH THE SKY
CONDITIONS. MEANWHILE THE LARGE AREA OF ISOLD SHOWERS OVER THE
REGION WERE DECREASING WITH THE LACK OF DAYTIME HEATING BUT MAY
LINGER OVER THE AREA MOUNTAINS OVERNIGHT. LOW TEMPS ARE EXPECTED TO
DIP TOWARD FREEZING OR LOWER OVER PORTIONS OF THE REGION AND THE
FREEZE WARNING WILL BE ALLOWED TO CONTINUE. OTHERWISE THE PRESENT
SHORT TERM FORECAST APPEARS ON TRACK FOR NOW.

.AVIATION...MAINLY VFR CONDITIONS WILL PERSIST FOR THE NEXT 24 HOURS
ACROSS ALL TAF SITES.

&&

.PREV DISC... /ISSUED 349 PM PDT WED APR 1 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING UNTIL 9 AM PDT THURSDAY WAZ026-027.

&&

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

$$

97/









000
FXUS66 KPDT 020539 AAB
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1035 PM PDT WED APR 1 2015

UPDATED THE AVIATION DISCUSSION

.UPDATE...SHOWERS WERE PERSISTING OVER OUR EXTREME NORTHERN ZONES
AND THE GRIDS WERE UPDATED TO REFLECT THIS ALONG WITH THE SKY
CONDITIONS. MEANWHILE THE LARGE AREA OF ISOLD SHOWERS OVER THE
REGION WERE DECREASING WITH THE LACK OF DAYTIME HEATING BUT MAY
LINGER OVER THE AREA MOUNTAINS OVERNIGHT. LOW TEMPS ARE EXPECTED TO
DIP TOWARD FREEZING OR LOWER OVER PORTIONS OF THE REGION AND THE
FREEZE WARNING WILL BE ALLOWED TO CONTINUE. OTHERWISE THE PRESENT
SHORT TERM FORECAST APPEARS ON TRACK FOR NOW.

.AVIATION...MAINLY VFR CONDITIONS WILL PERSIST FOR THE NEXT 24 HOURS
ACROSS ALL TAF SITES.

&&

.PREV DISC... /ISSUED 349 PM PDT WED APR 1 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING UNTIL 9 AM PDT THURSDAY WAZ026-027.

&&

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

$$

97/








000
FXUS66 KPDT 020539 AAB
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1035 PM PDT WED APR 1 2015

UPDATED THE AVIATION DISCUSSION

.UPDATE...SHOWERS WERE PERSISTING OVER OUR EXTREME NORTHERN ZONES
AND THE GRIDS WERE UPDATED TO REFLECT THIS ALONG WITH THE SKY
CONDITIONS. MEANWHILE THE LARGE AREA OF ISOLD SHOWERS OVER THE
REGION WERE DECREASING WITH THE LACK OF DAYTIME HEATING BUT MAY
LINGER OVER THE AREA MOUNTAINS OVERNIGHT. LOW TEMPS ARE EXPECTED TO
DIP TOWARD FREEZING OR LOWER OVER PORTIONS OF THE REGION AND THE
FREEZE WARNING WILL BE ALLOWED TO CONTINUE. OTHERWISE THE PRESENT
SHORT TERM FORECAST APPEARS ON TRACK FOR NOW.

.AVIATION...MAINLY VFR CONDITIONS WILL PERSIST FOR THE NEXT 24 HOURS
ACROSS ALL TAF SITES.

&&

.PREV DISC... /ISSUED 349 PM PDT WED APR 1 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING UNTIL 9 AM PDT THURSDAY WAZ026-027.

&&

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

$$

97/








000
FXUS66 KPDT 020443 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
935 PM PDT WED APR 1 2015

.UPDATE...SHOWERS WERE PERSISTING OVER OUR EXTREME NORTHERN ZONES
AND THE GRIDS WERE UPDATED TO REFLECT THIS ALONG WITH THE SKY
CONDITIONS. MEANWHILE THE LARGE AREA OF ISOLD SHOWERS OVER THE
REGION WERE DECREASING WITH THE LACK OF DAYTIME HEATING BUT MAY
LINGER OVER THE AREA MOUNTAINS OVERNIGHT. LOW TEMPS ARE EXPECTED TO
DIP TOWARD FREEZING OR LOWER OVER PORTIONS OF THE REGION AND THE
FREEZE WARNING WILL BE ALLOWED TO CONTINUE. OTHERWISE THE PRESENT
SHORT TERM FORECAST APPEARS ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 349 PM PDT WED APR 1 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

AVIATION...00Z TAFS...VFR CONDITIONS WILL PREVAIL DURING THE
FORECAST PERIOD.  PASSING CONVECTIVE SHOWERS WITH CIG AOA 6K FT AGL
WILL CONTINUE THRU 02/04Z...WITH BEST CHANCE MAINTAINED AT SITES
WITH A VICINITY MENTION GIVEN THE HIT OR MISS NATURE.  WEST WINDS
BTWN 10 TO 20 KTS WITH HIGHER GUSTS WILL CONTINUE THRU SUNSET
TONIGHT BEFORE DROPPING TO 5 TO 15 KTS.  GUSTY WEST WINDS BTWN 10 TO
20 KTS WILL RETURN AFT 02/18Z.  OTHERWISE...CIG WILL GRADUALLY RISE
AS STORM SYSTEM MOVES OUT AFT 02/04Z.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING UNTIL 9 AM PDT THURSDAY WAZ026-027.

&&

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

$$

97/










000
FXUS66 KPDT 020443 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
935 PM PDT WED APR 1 2015

.UPDATE...SHOWERS WERE PERSISTING OVER OUR EXTREME NORTHERN ZONES
AND THE GRIDS WERE UPDATED TO REFLECT THIS ALONG WITH THE SKY
CONDITIONS. MEANWHILE THE LARGE AREA OF ISOLD SHOWERS OVER THE
REGION WERE DECREASING WITH THE LACK OF DAYTIME HEATING BUT MAY
LINGER OVER THE AREA MOUNTAINS OVERNIGHT. LOW TEMPS ARE EXPECTED TO
DIP TOWARD FREEZING OR LOWER OVER PORTIONS OF THE REGION AND THE
FREEZE WARNING WILL BE ALLOWED TO CONTINUE. OTHERWISE THE PRESENT
SHORT TERM FORECAST APPEARS ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 349 PM PDT WED APR 1 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

AVIATION...00Z TAFS...VFR CONDITIONS WILL PREVAIL DURING THE
FORECAST PERIOD.  PASSING CONVECTIVE SHOWERS WITH CIG AOA 6K FT AGL
WILL CONTINUE THRU 02/04Z...WITH BEST CHANCE MAINTAINED AT SITES
WITH A VICINITY MENTION GIVEN THE HIT OR MISS NATURE.  WEST WINDS
BTWN 10 TO 20 KTS WITH HIGHER GUSTS WILL CONTINUE THRU SUNSET
TONIGHT BEFORE DROPPING TO 5 TO 15 KTS.  GUSTY WEST WINDS BTWN 10 TO
20 KTS WILL RETURN AFT 02/18Z.  OTHERWISE...CIG WILL GRADUALLY RISE
AS STORM SYSTEM MOVES OUT AFT 02/04Z.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING UNTIL 9 AM PDT THURSDAY WAZ026-027.

&&

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

$$

97/









000
FXUS66 KPDT 012248 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
349 PM PDT WED APR 1 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...00Z TAFS...VFR CONDITIONS WILL PREVAIL DURING THE
FORECAST PERIOD.  PASSING CONVECTIVE SHOWERS WITH CIG AOA 6K FT AGL
WILL CONTINUE THRU 02/04Z...WITH BEST CHANCE MAINTAINED AT SITES
WITH A VICINITY MENTION GIVEN THE HIT OR MISS NATURE.  WEST WINDS
BTWN 10 TO 20 KTS WITH HIGHER GUSTS WILL CONTINUE THRU SUNSET
TONIGHT BEFORE DROPPING TO 5 TO 15 KTS.  GUSTY WEST WINDS BTWN 10 TO
20 KTS WILL RETURN AFT 02/18Z.  OTHERWISE...CIG WILL GRADUALLY RISE
AS STORM SYSTEM MOVES OUT AFT 02/04Z.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98







000
FXUS66 KPDT 012248 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
349 PM PDT WED APR 1 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...00Z TAFS...VFR CONDITIONS WILL PREVAIL DURING THE
FORECAST PERIOD.  PASSING CONVECTIVE SHOWERS WITH CIG AOA 6K FT AGL
WILL CONTINUE THRU 02/04Z...WITH BEST CHANCE MAINTAINED AT SITES
WITH A VICINITY MENTION GIVEN THE HIT OR MISS NATURE.  WEST WINDS
BTWN 10 TO 20 KTS WITH HIGHER GUSTS WILL CONTINUE THRU SUNSET
TONIGHT BEFORE DROPPING TO 5 TO 15 KTS.  GUSTY WEST WINDS BTWN 10 TO
20 KTS WILL RETURN AFT 02/18Z.  OTHERWISE...CIG WILL GRADUALLY RISE
AS STORM SYSTEM MOVES OUT AFT 02/04Z.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98








000
FXUS66 KPDT 012248 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
349 PM PDT WED APR 1 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...00Z TAFS...VFR CONDITIONS WILL PREVAIL DURING THE
FORECAST PERIOD.  PASSING CONVECTIVE SHOWERS WITH CIG AOA 6K FT AGL
WILL CONTINUE THRU 02/04Z...WITH BEST CHANCE MAINTAINED AT SITES
WITH A VICINITY MENTION GIVEN THE HIT OR MISS NATURE.  WEST WINDS
BTWN 10 TO 20 KTS WITH HIGHER GUSTS WILL CONTINUE THRU SUNSET
TONIGHT BEFORE DROPPING TO 5 TO 15 KTS.  GUSTY WEST WINDS BTWN 10 TO
20 KTS WILL RETURN AFT 02/18Z.  OTHERWISE...CIG WILL GRADUALLY RISE
AS STORM SYSTEM MOVES OUT AFT 02/04Z.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98







000
FXUS66 KPDT 012248 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
349 PM PDT WED APR 1 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...00Z TAFS...VFR CONDITIONS WILL PREVAIL DURING THE
FORECAST PERIOD.  PASSING CONVECTIVE SHOWERS WITH CIG AOA 6K FT AGL
WILL CONTINUE THRU 02/04Z...WITH BEST CHANCE MAINTAINED AT SITES
WITH A VICINITY MENTION GIVEN THE HIT OR MISS NATURE.  WEST WINDS
BTWN 10 TO 20 KTS WITH HIGHER GUSTS WILL CONTINUE THRU SUNSET
TONIGHT BEFORE DROPPING TO 5 TO 15 KTS.  GUSTY WEST WINDS BTWN 10 TO
20 KTS WILL RETURN AFT 02/18Z.  OTHERWISE...CIG WILL GRADUALLY RISE
AS STORM SYSTEM MOVES OUT AFT 02/04Z.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98








000
FXUS66 KPDT 012136
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
236 PM PDT WED APR 1 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...VFR CONDITIONS WILL
PREVAIL DURING THE FORECAST PERIOD.  ISOLD TO SCT SHOWERS WITH
EMBEDDED THUNDERSTORMS IN STRONGEST SHOWERS WILL DEVELOP BTWN 01/21Z
TO 02/07Z.  GUIDANCE HAS BACKED OFF CONSIDERABLY ON POPS...SO WILL
KEEP VICINITY SHOWER MENTION AT TAF SITES WITH BEST CHANCE.  CIG
WILL BE AOA 5K FT AGL AS SHOWERS PASS NEAR TAF SITES.  WEST WINDS
WILL BE ELEVATED TODAY BTWN 10 TO 20 KTS WITH HIGHER GUSTS UNTIL
SUNSET. BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98









000
FXUS66 KPDT 012136
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
236 PM PDT WED APR 1 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...VFR CONDITIONS WILL
PREVAIL DURING THE FORECAST PERIOD.  ISOLD TO SCT SHOWERS WITH
EMBEDDED THUNDERSTORMS IN STRONGEST SHOWERS WILL DEVELOP BTWN 01/21Z
TO 02/07Z.  GUIDANCE HAS BACKED OFF CONSIDERABLY ON POPS...SO WILL
KEEP VICINITY SHOWER MENTION AT TAF SITES WITH BEST CHANCE.  CIG
WILL BE AOA 5K FT AGL AS SHOWERS PASS NEAR TAF SITES.  WEST WINDS
WILL BE ELEVATED TODAY BTWN 10 TO 20 KTS WITH HIGHER GUSTS UNTIL
SUNSET. BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98










000
FXUS66 KPDT 012136
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
236 PM PDT WED APR 1 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...VFR CONDITIONS WILL
PREVAIL DURING THE FORECAST PERIOD.  ISOLD TO SCT SHOWERS WITH
EMBEDDED THUNDERSTORMS IN STRONGEST SHOWERS WILL DEVELOP BTWN 01/21Z
TO 02/07Z.  GUIDANCE HAS BACKED OFF CONSIDERABLY ON POPS...SO WILL
KEEP VICINITY SHOWER MENTION AT TAF SITES WITH BEST CHANCE.  CIG
WILL BE AOA 5K FT AGL AS SHOWERS PASS NEAR TAF SITES.  WEST WINDS
WILL BE ELEVATED TODAY BTWN 10 TO 20 KTS WITH HIGHER GUSTS UNTIL
SUNSET. BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98









000
FXUS66 KPDT 012136
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
236 PM PDT WED APR 1 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT...ISOLATED TO SCATTERED
SHOWERS CONTINUE TO DEVELOP ACROSS THE AREA THIS AFTERNOON. THE
INSTABILITY DRIVING THESE SHOWERS HAS THE POTENTIAL TO BE LOCALLY
STRONG ENOUGH TO CAUSE STRAY THUNDERSTORMS AS WELL. EXPECT THESE
SHOWERS AND ANY STORMS TO PERSIST INTO THE EVENING. THE
THUNDERSTORMS SHOULD END AROUND SUNSET. NORTHWEST FLOW WILL KEEP
SOME SHOWERS GOING OVER THE INTERIOR MOUNTAINS AND NEAR THE CASCADE
CREST OVERNIGHT INTO WEDNESDAY. SNOW LEVELS WILL REMAIN LOW, BUT
ACCUMULATIONS WILL BE LIGHT AND LOCALIZED. EXPECT TO SEE DECENT
CLEARING OVER NORTH CENTRAL OREGON AND SOUTH CENTRAL WASHINGTON
AFTER SUNSET. THIS CLEARING, COMBINED WITH A DRY AIR MASS AND
DECREASING WINDS, WILL LEAD TO GOOD RADIATIONAL COOLING. OVERNIGHT
LOW TEMPS IN THE YAKIMA VALLEY, KITTITAS VALLEY AND NORTH CENTRAL
OREGON ARE EXPECTED TO RUN BETWEEN 28 AND 34 DEGREES. THOUGH ZONE
COVERAGE OF FREEZING TEMPS IN THESE AREAS WILL NOT BE COMPLETE,
ISSUES FOR SENSITIVE VEGETATION WILL STILL BE POSSIBLE. THUS HAVE
ISSUED FREEZE WARNINGS FOR THE ABOVE MENTIONED ZONES. ANOTHER
PACIFIC SYSTEM WILL APPROACH THE REGION FRIDAY. PRECIP WILL REACH
THE CASCADE EAST SLOPES FRIDAY MORNING AND THE NORTHEAST OREGON
MOUNTAINS BY FRIDAY AFTERNOON. THE SYSTEM`S COLD FRONT WILL SWING
ACROSS THE REGION FRIDAY NIGHT BRINGING VARYING PRECIP CHANCES TO
MUCH OF THE AREA. 90

.LONG TERM...SATURDAY THROUGH WEDNESDAY...AN UPPER LEVEL LOW WILL
SLOWLY MOVE SEWD ONTO THE PACIFIC NORTHWEST COAST AND ACROSS THE
REGION THROUGH THE FORECAST PERIOD.  UNSETTLED WEATHER WILL OCCUR AS
A RESULT WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS
EXPECTED THROUGH TUESDAY OVER THE TWO-STATE AREA.  AS THE UPPER
LEVEL LOW APPROACHES THE REGION SUNDAY AFTERNOON AND EVENING...MID
AND UPPER LEVEL COOLING WILL ALLOW FOR SOME INSTABILITY OVER CENTRAL
OREGON AND PORTIONS OF THE JOHN DAY HIGHLANDS.  HAVE RETAINED THE
SLIGHT CHANCE OF THUNDERSTORMS FROM PRIOR SHIFT WITH SOME
ADJUSTMENTS BASED UPON A BLEND OF MODEL GUIDANCE INSTABILITY
PARAMETERS.  THE UPPER LOW WILL OPEN UP ON MONDAY AND DIG SEWD
ACROSS SOUTHERN OREGON AND NORTHERN CALIFORNIA THROUGH TUESDAY NIGHT
WITH THE MOST FAVORABLE DYNAMICS IN OUR FORECAST AREA FAVORING
CENTRAL OREGON.  SUFFICIENT INSTABILITY REMAINS ON MONDAY TO
CONTINUE A MENTION OF A SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE
HIGHLANDS OF CENTRAL TO NORTHEAST OREGON.  A SHORTWAVE RIDGE WILL
BUILD IN BEHIND THE TROUGH AS IT EXITS THE AREA ON WEDNESDAY
HERALDING A START TO A WARMING AND DRYING TREND.  DAYTIME HIGH
TEMPERATURES DURING THE PERIOD WILL BE IN THE LOWER 40S TO LOWER 50S
ALONG THE HIGHLANDS AND NEAR 60 IN THE LOWER COLUMBIA BASIN SATURDAY
THROUGH MONDAY.  HIGH TEMPERATURES WILL GRADUALLY WARM A DEGREE OR
TWO PER DAY TUESDAY AND WEDNESDAY.  LOW TEMPERATURES WILL BE BELOW
FREEZING EACH NIGHT ALONG THE HIGHLANDS OF WASHINGTON AND
OREGON...AND NEAR TO SLIGHTLY ABOVE FREEZING IN THE LOWER COLUMBIA
BASIN. BIEDA

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...VFR CONDITIONS WILL
PREVAIL DURING THE FORECAST PERIOD.  ISOLD TO SCT SHOWERS WITH
EMBEDDED THUNDERSTORMS IN STRONGEST SHOWERS WILL DEVELOP BTWN 01/21Z
TO 02/07Z.  GUIDANCE HAS BACKED OFF CONSIDERABLY ON POPS...SO WILL
KEEP VICINITY SHOWER MENTION AT TAF SITES WITH BEST CHANCE.  CIG
WILL BE AOA 5K FT AGL AS SHOWERS PASS NEAR TAF SITES.  WEST WINDS
WILL BE ELEVATED TODAY BTWN 10 TO 20 KTS WITH HIGHER GUSTS UNTIL
SUNSET. BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  34  56  33  61 /  20  10  10  10
ALW  38  58  37  63 /  20  10  10  10
PSC  33  62  32  65 /  20  10   0  10
YKM  32  59  30  60 /  20  10  10  20
HRI  34  60  30  64 /  20  10   0  10
ELN  33  58  29  57 /  20  10  10  20
RDM  20  53  20  57 /  20   0   0  20
LGD  30  51  25  58 /  20  20  10  10
GCD  28  53  28  58 /  20  20  10  10
DLS  39  61  35  61 /  20  10  10  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY ORZ510.

WA...FREEZE WARNING FROM MIDNIGHT TONIGHT TO 9 AM PDT THURSDAY
     WAZ026-027.

&&

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

$$

90/98/98










000
FXUS66 KPDT 011717 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
1018 AM PDT WED APR 1 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...MORNING UPDATE...SCATTERED SNOW SHOWERS CONTINUE ALONG
THE CASCADE CREST AND OVER THE NORTHERN BLUE MOUNTAINS THIS MORNING.
THE SHOWERS OVER THE BLUE MOUNTAINS HAVE BEEN ON THE DECREASE
THOUGH. THE AIR ALOFT OVER THE REGION WILL REMAIN QUITE COLD TODAY.
AS A RESULT THE LAPSE RATES BETWEEN THE SURFACE AND ALOFT THIS
AFTERNOON WILL BECOME RATHER STEEP. THUS WILL SEE ISOLATED TO
SCATTERED SHOWERS DEVELOP OVER MUCH OF THE AREA. STRAY THUNDERSTORMS
CAPABLE OF PRODUCING SMALL HAIL WILL ALSO BE POSSIBLE. WINDS WILL BE
LOCALLY BREEZY. THE SHOWERS WILL DECREASE AND THE POSSIBLE
THUNDERSTORMS WILL END THIS EVENING WITH THE LOSS OF DAYTIME
HEATING. OVERALL FORECASTS ARE ON TRACK WITH UPDATES MADE TO SHOWER
COVERAGE, SKY COVER AND WINDS BASED ON LATEST TRENDS. 90

.LONG TERM...PREVIOUS DISCUSSION...AN UPPER LEVEL LOW WILL MOVE SEWD
FROM OFF THE BRITISH COLUMBIA COAST ACROSS THE PACIFIC NW OVER THE
WEEKEND. THIS WILL RESULT IN UNSETTLED WEATHER WITH A CHANCE FOR
SHOWERS AND MOUNTAIN SNOW SHOWERS ESPECIALLY SUNDAY. THERE WILE BE
ENOUGH COLD AIR ALOFT WITH THE SYSTEM FOR ISOLATED THUNDERSTORMS
ESPECIALLY WEST AND SOUTH SUNDAY AFTERNOON. AS THE LOW EXITS THE
AREA ANOTHER TROUGH WILL DIG SEWD ACROSS OREGON INTO NORTHERN
CALIFORNIA MONDAY INTO TUESDAY. THIS WILL KEEP THE CHANCE FOR
SHOWERS AND MOUNTAIN SNOW SHOWER GOING. ON MONDAY IT APPEARS THAT
THERE WILL BE SUFFICIENT INSTABILITY FOR ISOLATED THUNDERSTORMS OVER
THE NE OREGON MOUNTAINS. BY WEDNESDAY A DRYING TREND SHOULD BEGIN AS
A RIDGE OFFSHORE NUDGES INLAND. TEMPERATURES WILL BE A BIT COOLER
THAN NORMAL FOR MOST OF THE PERIOD WITH LOW TEMPERATURES IN THE
LOWLANDS FLIRTING WITH THE FREEZING MARK DEPENDING ON CLOUD COVER
AND WIND. IT WILL BE WELL BELOW FREEZING IN THE MOUNTAINS AT NIGHT.
DAYTIME HIGHS WILL START OUT MOSTLY 50S LOWER ELEVATIONS WITH 30S
AND 40S MOUNTAINS AND WARM TO THE 60S LOWLANDS AND 45-50 MOUNTAINS
BY WEDNESDAY.

&&

.AVIATION...18Z TAFS...VFR CONDITIONS WILL PREVAIL DURING THE
FORECAST PERIOD.  ISOLD TO SCT SHOWERS WITH EMBEDDED THUNDERSTORMS
IN STRONGEST SHOWERS WILL DEVELOP BTWN 01/21Z TO 02/07Z.  GUIDANCE
HAS BACKED OFF CONSIDERABLY ON POPS...SO WILL KEEP VICINITY SHOWER
MENTION AT TAF SITES WITH BEST CHANCE.  CIG WILL BE AOA 5K FT AGL AS
SHOWERS PASS NEAR TAF SITES.  WEST WINDS WILL BE ELEVATED TODAY BTWN
10 TO 20 KTS WITH HIGHER GUSTS UNTIL SUNSET.  BIEDA

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  33  55  33 /  20  20  10  10
ALW  55  36  57  38 /  20  20  10  10
PSC  61  32  61  34 /  20  20  10  10
YKM  57  31  59  33 /  20  20  10  10
HRI  59  32  60  32 /  20  20  10   0
ELN  56  32  58  33 /  20  20  10  10
RDM  50  22  53  21 /  30  20  10   0
LGD  47  29  52  28 /  30  20  20  10
GCD  50  29  51  29 /  30  20  20  10
DLS  58  37  61  37 /  30  20  10  10

&&

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

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

$$

90/78/98







000
FXUS66 KPDT 011648
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
948 AM PDT WED APR 1 2015

.SHORT TERM...MORNING UPDATE...SCATTERED SNOW SHOWERS CONTINUE ALONG
THE CASCADE CREST AND OVER THE NORTHERN BLUE MOUNTAINS THIS MORNING.
THE SHOWERS OVER THE BLUE MOUNTAINS HAVE BEEN ON THE DECREASE
THOUGH. THE AIR ALOFT OVER THE REGION WILL REMAIN QUITE COLD TODAY.
AS A RESULT THE LAPSE RATES BETWEEN THE SURFACE AND ALOFT THIS
AFTERNOON WILL BECOME RATHER STEEP. THUS WILL SEE ISOLATED TO
SCATTERED SHOWERS DEVELOP OVER MUCH OF THE AREA. STRAY THUNDERSTORMS
CAPABLE OF PRODUCING SMALL HAIL WILL ALSO BE POSSIBLE. WINDS WILL BE
LOCALLY BREEZY. THE SHOWERS WILL DECREASE AND THE POSSIBLE
THUNDERSTORMS WILL END THIS EVENING WITH THE LOSS OF DAYTIME
HEATING. OVERALL FORECASTS ARE ON TRACK WITH UPDATES MADE TO SHOWER
COVERAGE, SKY COVER AND WINDS BASED ON LATEST TRENDS. 90

.LONG TERM...PREVIOUS DISCUSSION...AN UPPER LEVEL LOW WILL MOVE SEWD
FROM OFF THE BRITISH COLUMBIA COAST ACROSS THE PACIFIC NW OVER THE
WEEKEND. THIS WILL RESULT IN UNSETTLED WEATHER WITH A CHANCE FOR
SHOWERS AND MOUNTAIN SNOW SHOWERS ESPECIALLY SUNDAY. THERE WILE BE
ENOUGH COLD AIR ALOFT WITH THE SYSTEM FOR ISOLATED THUNDERSTORMS
ESPECIALLY WEST AND SOUTH SUNDAY AFTERNOON. AS THE LOW EXITS THE
AREA ANOTHER TROUGH WILL DIG SEWD ACROSS OREGON INTO NORTHERN
CALIFORNIA MONDAY INTO TUESDAY. THIS WILL KEEP THE CHANCE FOR
SHOWERS AND MOUNTAIN SNOW SHOWER GOING. ON MONDAY IT APPEARS THAT
THERE WILL BE SUFFICIENT INSTABILITY FOR ISOLATED THUNDERSTORMS OVER
THE NE OREGON MOUNTAINS. BY WEDNESDAY A DRYING TREND SHOULD BEGIN AS
A RIDGE OFFSHORE NUDGES INLAND. TEMPERATURES WILL BE A BIT COOLER
THAN NORMAL FOR MOST OF THE PERIOD WITH LOW TEMPERATURES IN THE
LOWLANDS FLIRTING WITH THE FREEZING MARK DEPENDING ON CLOUD COVER
AND WIND. IT WILL BE WELL BELOW FREEZING IN THE MOUNTAINS AT NIGHT.
DAYTIME HIGHS WILL START OUT MOSTLY 50S LOWER ELEVATIONS WITH 30S
AND 40S MOUNTAINS AND WARM TO THE 60S LOWLANDS AND 45-50 MOUNTAINS
BY WEDNESDAY.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS WILL
PREVAIL THROUGH THE FORECAST PERIOD. EXPECT ISOLATED TO SCATTERED
SHOWERS TO DEVELOP TODAY AND CONTINUE INTO EARLY THIS EVENING. VERY
ISOLATED THUNDERSTORMS ARE POSSIBLE. WILL CARRY MAINLY VCSH IN THE
TAFS. CEILINGS WILL BE 4-7 KFT AGL WITH A MID CLOUD DECK ABOVE
AROUND 10 KFT AGL. WEST WINDS WILL INCREASE AFTER 18Z TO 10-20 KT
WITH SOME HIGHER GUSTS AND PERSIST INTO THIS EVENING BEFORE
DIMINISHING OVERNIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  33  55  33 /  20  20  10  10
ALW  55  36  57  38 /  20  20  10  10
PSC  61  32  61  34 /  20  20  10  10
YKM  57  31  59  33 /  20  20  10  10
HRI  59  32  60  32 /  20  20  10   0
ELN  56  32  58  33 /  20  20  10  10
RDM  50  22  53  21 /  30  20  10   0
LGD  47  29  52  28 /  30  20  20  10
GCD  50  29  51  29 /  30  20  20  10
DLS  58  37  61  37 /  30  20  10  10

&&

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

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

$$

90/78/98










000
FXUS66 KPDT 011648
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
948 AM PDT WED APR 1 2015

.SHORT TERM...MORNING UPDATE...SCATTERED SNOW SHOWERS CONTINUE ALONG
THE CASCADE CREST AND OVER THE NORTHERN BLUE MOUNTAINS THIS MORNING.
THE SHOWERS OVER THE BLUE MOUNTAINS HAVE BEEN ON THE DECREASE
THOUGH. THE AIR ALOFT OVER THE REGION WILL REMAIN QUITE COLD TODAY.
AS A RESULT THE LAPSE RATES BETWEEN THE SURFACE AND ALOFT THIS
AFTERNOON WILL BECOME RATHER STEEP. THUS WILL SEE ISOLATED TO
SCATTERED SHOWERS DEVELOP OVER MUCH OF THE AREA. STRAY THUNDERSTORMS
CAPABLE OF PRODUCING SMALL HAIL WILL ALSO BE POSSIBLE. WINDS WILL BE
LOCALLY BREEZY. THE SHOWERS WILL DECREASE AND THE POSSIBLE
THUNDERSTORMS WILL END THIS EVENING WITH THE LOSS OF DAYTIME
HEATING. OVERALL FORECASTS ARE ON TRACK WITH UPDATES MADE TO SHOWER
COVERAGE, SKY COVER AND WINDS BASED ON LATEST TRENDS. 90

.LONG TERM...PREVIOUS DISCUSSION...AN UPPER LEVEL LOW WILL MOVE SEWD
FROM OFF THE BRITISH COLUMBIA COAST ACROSS THE PACIFIC NW OVER THE
WEEKEND. THIS WILL RESULT IN UNSETTLED WEATHER WITH A CHANCE FOR
SHOWERS AND MOUNTAIN SNOW SHOWERS ESPECIALLY SUNDAY. THERE WILE BE
ENOUGH COLD AIR ALOFT WITH THE SYSTEM FOR ISOLATED THUNDERSTORMS
ESPECIALLY WEST AND SOUTH SUNDAY AFTERNOON. AS THE LOW EXITS THE
AREA ANOTHER TROUGH WILL DIG SEWD ACROSS OREGON INTO NORTHERN
CALIFORNIA MONDAY INTO TUESDAY. THIS WILL KEEP THE CHANCE FOR
SHOWERS AND MOUNTAIN SNOW SHOWER GOING. ON MONDAY IT APPEARS THAT
THERE WILL BE SUFFICIENT INSTABILITY FOR ISOLATED THUNDERSTORMS OVER
THE NE OREGON MOUNTAINS. BY WEDNESDAY A DRYING TREND SHOULD BEGIN AS
A RIDGE OFFSHORE NUDGES INLAND. TEMPERATURES WILL BE A BIT COOLER
THAN NORMAL FOR MOST OF THE PERIOD WITH LOW TEMPERATURES IN THE
LOWLANDS FLIRTING WITH THE FREEZING MARK DEPENDING ON CLOUD COVER
AND WIND. IT WILL BE WELL BELOW FREEZING IN THE MOUNTAINS AT NIGHT.
DAYTIME HIGHS WILL START OUT MOSTLY 50S LOWER ELEVATIONS WITH 30S
AND 40S MOUNTAINS AND WARM TO THE 60S LOWLANDS AND 45-50 MOUNTAINS
BY WEDNESDAY.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS WILL
PREVAIL THROUGH THE FORECAST PERIOD. EXPECT ISOLATED TO SCATTERED
SHOWERS TO DEVELOP TODAY AND CONTINUE INTO EARLY THIS EVENING. VERY
ISOLATED THUNDERSTORMS ARE POSSIBLE. WILL CARRY MAINLY VCSH IN THE
TAFS. CEILINGS WILL BE 4-7 KFT AGL WITH A MID CLOUD DECK ABOVE
AROUND 10 KFT AGL. WEST WINDS WILL INCREASE AFTER 18Z TO 10-20 KT
WITH SOME HIGHER GUSTS AND PERSIST INTO THIS EVENING BEFORE
DIMINISHING OVERNIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  33  55  33 /  20  20  10  10
ALW  55  36  57  38 /  20  20  10  10
PSC  61  32  61  34 /  20  20  10  10
YKM  57  31  59  33 /  20  20  10  10
HRI  59  32  60  32 /  20  20  10   0
ELN  56  32  58  33 /  20  20  10  10
RDM  50  22  53  21 /  30  20  10   0
LGD  47  29  52  28 /  30  20  20  10
GCD  50  29  51  29 /  30  20  20  10
DLS  58  37  61  37 /  30  20  10  10

&&

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

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

$$

90/78/98









000
FXUS66 KPDT 010935
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
235 AM PDT WED APR 1 2015

.SHORT TERM...TODAY THROUGH FRIDAY...WINDS WILL STILL BE A BIT
BREEZY TODAY AS A POSITIVELY TILTED SHORTWAVE WILL MOVE ACROSS THE
INTERIOR PACIFIC NORTHWEST THIS AFTERNOON.  SCATTERED
SHOWERS...MAINLY OVER THE MOUNTAINS WILL BE POSSIBLE.  ISOLATED
SHOWERS OVER THE BASIN.  THERE WILL BE SOME MARGINAL INSTABILITY
THAT COULD PROVIDE THUNDER OUT OF THESE SHOWERS.  CONFIDENCE IS NOT
HIGH ENOUGH WITH THE NORTHWEST FLOW THAT WE WILL SEE THUNDER TOO FAR
EAST OF THE CASCADES.  THEREFORE...HAVE BACKED OFF ON THE
THUNDERSTORM COVERAGE TODAY...BY TAKING OUT MOST OF THE BASIN.  BEST
CHANCE FOR THUNDER ALONG THE NORTHEAST MOUNTAINS TODAY SHOULD BE
BEFORE 5PM...AS FLOW IS STILL WESTERLY.  BY LATE EVENING THE
NORTHWEST FLOW WILL INHIBIT THE THUNDER POTENTIAL...THEREFORE HAVE
TAKEN THUNDER OUT AFTER 5PM FOR THE NORTHEAST MOUNTAINS.

AS THE SYSTEM EXITS THE AREA TONIGHT WE CAN EXPECT A BREAK IN THE
POPS FOR THE MOST PART THROUGH FRIDAY MORNING.  THERE IS STILL
ENOUGH LINGERING MOISTURE OVER WALLOWA COUNTY AND THE BLUES THAT
LIGHT UPSLOPE SHOWERS CAN`T BE RULED OUT.  COLDER AIR WILL CONTINUE
TO FUNNEL IN WITH THIS NORTHWEST FLOW...AND THE POTENTIAL FOR MOSTLY
CLEAR SKIES AT NIGHT COULD ALLOW FOR A WIDESPREAD FREEZE ACROSS OUR
AREA.  RIGHT NOW THE FORECAST MINIMUM TEMPERATURES ARE RIGHT AROUND
FREEZING FOR THE COLDEST SPOTS.  SO CONFIDENCE IS NOT HIGH ENOUGH TO
ISSUE A FREEZE WARNING.  WILL DEFER TO THE DAY SHIFT TO SEE IF ANY
FREEZE WARNINGS WILL BE NEEDED.  WEBER

.LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY...AN UPPER LEVEL LOW
WILL MOVE SEWD FROM OFF THE BRITISH COLUMBIA COAST ACROSS THE
PACIFIC NW OVER THE WEEKEND. THIS WILL RESULT IN UNSETTLED WEATHER
WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS ESPECIALLY
SUNDAY. THERE WILE BE ENOUGH COLD AIR ALOFT WITH THE SYSTEM FOR
ISOLATED THUNDERSTORMS ESPECIALLY WEST AND SOUTH SUNDAY AFTERNOON.
AS THE LOW EXITS THE AREA ANOTHER TROUGH WILL DIG SEWD ACROSS OREGON
INTO NORTHERN CALIFORNIA MONDAY INTO TUESDAY. THIS WILL KEEP THE
CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWER GOING. ON MONDAY IT
APPEARS THAT THERE WILL BE SUFFICIENT INSTABILITY FOR ISOLATED
THUNDERSTORMS OVER THE NE OREGON MOUNTAINS. BY WEDNESDAY A DRYING
TREND SHOULD BEGIN AS A RIDGE OFFSHORE NUDGES INLAND. TEMPERATURES
WILL BE A BIT COOLER THAN NORMAL FOR MOST OF THE PERIOD WITH LOW
TEMPERATURES IN THE LOWLANDS FLIRTING WITH THE FREEZING MARK
DEPENDING ON CLOUD COVER AND WIND. IT WILL BE WELL BELOW FREEZING IN
THE MOUNTAINS AT NIGHT. DAYTIME HIGHS WILL START OUT MOSTLY 50S
LOWER ELEVATIONS WITH 30S AND 40S MOUNTAINS AND WARM TO THE 60S
LOWLANDS AND 45-50 MOUNTAINS BY WEDNESDAY. 78

&&

.AVIATION...12Z TAFS...VFR CONDITIONS WILL PREVAIL THROUGH THE
FORECAST PERIOD. EXPECT ISOLATED TO SCATTERED SHOWERS TO DEVELOP
TODAY AND CONTINUE INTO EARLY THIS EVENING. VERY ISOLATED
THUNDERSTORMS ARE POSSIBLE. WILL CARRY MAINLY VCSH IN THE TAFS.
CEILINGS WILL BE 4-7 KFT AGL WITH A MID CLOUD DECK ABOVE AROUND 10
KFT AGL. WEST WINDS WILL INCREASE AFTER 18Z TO 10-20 KT WITH SOME
HIGHER GUSTS AND PERSIST INTO THIS EVENING BEFORE DIMINISHING
OVERNIGHT. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  33  55  33 /  20  20  10  10
ALW  56  36  57  38 /  20  20  10  10
PSC  61  32  61  34 /  20  20  10  10
YKM  57  31  59  33 /  20  10  10  10
HRI  59  32  60  32 /  20  20  10   0
ELN  56  32  58  33 /  20  10  10  10
RDM  50  22  53  21 /  30  20  10   0
LGD  49  29  52  28 /  30  20  20  10
GCD  49  29  51  29 /  30  20  20  10
DLS  58  37  61  37 /  30  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 8 AM PDT THIS MORNING ORZ510.

WA...NONE.
&&

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

$$

89/78/78









000
FXUS66 KPDT 010935
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
235 AM PDT WED APR 1 2015

.SHORT TERM...TODAY THROUGH FRIDAY...WINDS WILL STILL BE A BIT
BREEZY TODAY AS A POSITIVELY TILTED SHORTWAVE WILL MOVE ACROSS THE
INTERIOR PACIFIC NORTHWEST THIS AFTERNOON.  SCATTERED
SHOWERS...MAINLY OVER THE MOUNTAINS WILL BE POSSIBLE.  ISOLATED
SHOWERS OVER THE BASIN.  THERE WILL BE SOME MARGINAL INSTABILITY
THAT COULD PROVIDE THUNDER OUT OF THESE SHOWERS.  CONFIDENCE IS NOT
HIGH ENOUGH WITH THE NORTHWEST FLOW THAT WE WILL SEE THUNDER TOO FAR
EAST OF THE CASCADES.  THEREFORE...HAVE BACKED OFF ON THE
THUNDERSTORM COVERAGE TODAY...BY TAKING OUT MOST OF THE BASIN.  BEST
CHANCE FOR THUNDER ALONG THE NORTHEAST MOUNTAINS TODAY SHOULD BE
BEFORE 5PM...AS FLOW IS STILL WESTERLY.  BY LATE EVENING THE
NORTHWEST FLOW WILL INHIBIT THE THUNDER POTENTIAL...THEREFORE HAVE
TAKEN THUNDER OUT AFTER 5PM FOR THE NORTHEAST MOUNTAINS.

AS THE SYSTEM EXITS THE AREA TONIGHT WE CAN EXPECT A BREAK IN THE
POPS FOR THE MOST PART THROUGH FRIDAY MORNING.  THERE IS STILL
ENOUGH LINGERING MOISTURE OVER WALLOWA COUNTY AND THE BLUES THAT
LIGHT UPSLOPE SHOWERS CAN`T BE RULED OUT.  COLDER AIR WILL CONTINUE
TO FUNNEL IN WITH THIS NORTHWEST FLOW...AND THE POTENTIAL FOR MOSTLY
CLEAR SKIES AT NIGHT COULD ALLOW FOR A WIDESPREAD FREEZE ACROSS OUR
AREA.  RIGHT NOW THE FORECAST MINIMUM TEMPERATURES ARE RIGHT AROUND
FREEZING FOR THE COLDEST SPOTS.  SO CONFIDENCE IS NOT HIGH ENOUGH TO
ISSUE A FREEZE WARNING.  WILL DEFER TO THE DAY SHIFT TO SEE IF ANY
FREEZE WARNINGS WILL BE NEEDED.  WEBER

.LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY...AN UPPER LEVEL LOW
WILL MOVE SEWD FROM OFF THE BRITISH COLUMBIA COAST ACROSS THE
PACIFIC NW OVER THE WEEKEND. THIS WILL RESULT IN UNSETTLED WEATHER
WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS ESPECIALLY
SUNDAY. THERE WILE BE ENOUGH COLD AIR ALOFT WITH THE SYSTEM FOR
ISOLATED THUNDERSTORMS ESPECIALLY WEST AND SOUTH SUNDAY AFTERNOON.
AS THE LOW EXITS THE AREA ANOTHER TROUGH WILL DIG SEWD ACROSS OREGON
INTO NORTHERN CALIFORNIA MONDAY INTO TUESDAY. THIS WILL KEEP THE
CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWER GOING. ON MONDAY IT
APPEARS THAT THERE WILL BE SUFFICIENT INSTABILITY FOR ISOLATED
THUNDERSTORMS OVER THE NE OREGON MOUNTAINS. BY WEDNESDAY A DRYING
TREND SHOULD BEGIN AS A RIDGE OFFSHORE NUDGES INLAND. TEMPERATURES
WILL BE A BIT COOLER THAN NORMAL FOR MOST OF THE PERIOD WITH LOW
TEMPERATURES IN THE LOWLANDS FLIRTING WITH THE FREEZING MARK
DEPENDING ON CLOUD COVER AND WIND. IT WILL BE WELL BELOW FREEZING IN
THE MOUNTAINS AT NIGHT. DAYTIME HIGHS WILL START OUT MOSTLY 50S
LOWER ELEVATIONS WITH 30S AND 40S MOUNTAINS AND WARM TO THE 60S
LOWLANDS AND 45-50 MOUNTAINS BY WEDNESDAY. 78

&&

.AVIATION...12Z TAFS...VFR CONDITIONS WILL PREVAIL THROUGH THE
FORECAST PERIOD. EXPECT ISOLATED TO SCATTERED SHOWERS TO DEVELOP
TODAY AND CONTINUE INTO EARLY THIS EVENING. VERY ISOLATED
THUNDERSTORMS ARE POSSIBLE. WILL CARRY MAINLY VCSH IN THE TAFS.
CEILINGS WILL BE 4-7 KFT AGL WITH A MID CLOUD DECK ABOVE AROUND 10
KFT AGL. WEST WINDS WILL INCREASE AFTER 18Z TO 10-20 KT WITH SOME
HIGHER GUSTS AND PERSIST INTO THIS EVENING BEFORE DIMINISHING
OVERNIGHT. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  33  55  33 /  20  20  10  10
ALW  56  36  57  38 /  20  20  10  10
PSC  61  32  61  34 /  20  20  10  10
YKM  57  31  59  33 /  20  10  10  10
HRI  59  32  60  32 /  20  20  10   0
ELN  56  32  58  33 /  20  10  10  10
RDM  50  22  53  21 /  30  20  10   0
LGD  49  29  52  28 /  30  20  20  10
GCD  49  29  51  29 /  30  20  20  10
DLS  58  37  61  37 /  30  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 8 AM PDT THIS MORNING ORZ510.

WA...NONE.
&&

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

$$

89/78/78









000
FXUS66 KPDT 010935
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
235 AM PDT WED APR 1 2015

.SHORT TERM...TODAY THROUGH FRIDAY...WINDS WILL STILL BE A BIT
BREEZY TODAY AS A POSITIVELY TILTED SHORTWAVE WILL MOVE ACROSS THE
INTERIOR PACIFIC NORTHWEST THIS AFTERNOON.  SCATTERED
SHOWERS...MAINLY OVER THE MOUNTAINS WILL BE POSSIBLE.  ISOLATED
SHOWERS OVER THE BASIN.  THERE WILL BE SOME MARGINAL INSTABILITY
THAT COULD PROVIDE THUNDER OUT OF THESE SHOWERS.  CONFIDENCE IS NOT
HIGH ENOUGH WITH THE NORTHWEST FLOW THAT WE WILL SEE THUNDER TOO FAR
EAST OF THE CASCADES.  THEREFORE...HAVE BACKED OFF ON THE
THUNDERSTORM COVERAGE TODAY...BY TAKING OUT MOST OF THE BASIN.  BEST
CHANCE FOR THUNDER ALONG THE NORTHEAST MOUNTAINS TODAY SHOULD BE
BEFORE 5PM...AS FLOW IS STILL WESTERLY.  BY LATE EVENING THE
NORTHWEST FLOW WILL INHIBIT THE THUNDER POTENTIAL...THEREFORE HAVE
TAKEN THUNDER OUT AFTER 5PM FOR THE NORTHEAST MOUNTAINS.

AS THE SYSTEM EXITS THE AREA TONIGHT WE CAN EXPECT A BREAK IN THE
POPS FOR THE MOST PART THROUGH FRIDAY MORNING.  THERE IS STILL
ENOUGH LINGERING MOISTURE OVER WALLOWA COUNTY AND THE BLUES THAT
LIGHT UPSLOPE SHOWERS CAN`T BE RULED OUT.  COLDER AIR WILL CONTINUE
TO FUNNEL IN WITH THIS NORTHWEST FLOW...AND THE POTENTIAL FOR MOSTLY
CLEAR SKIES AT NIGHT COULD ALLOW FOR A WIDESPREAD FREEZE ACROSS OUR
AREA.  RIGHT NOW THE FORECAST MINIMUM TEMPERATURES ARE RIGHT AROUND
FREEZING FOR THE COLDEST SPOTS.  SO CONFIDENCE IS NOT HIGH ENOUGH TO
ISSUE A FREEZE WARNING.  WILL DEFER TO THE DAY SHIFT TO SEE IF ANY
FREEZE WARNINGS WILL BE NEEDED.  WEBER

.LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY...AN UPPER LEVEL LOW
WILL MOVE SEWD FROM OFF THE BRITISH COLUMBIA COAST ACROSS THE
PACIFIC NW OVER THE WEEKEND. THIS WILL RESULT IN UNSETTLED WEATHER
WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS ESPECIALLY
SUNDAY. THERE WILE BE ENOUGH COLD AIR ALOFT WITH THE SYSTEM FOR
ISOLATED THUNDERSTORMS ESPECIALLY WEST AND SOUTH SUNDAY AFTERNOON.
AS THE LOW EXITS THE AREA ANOTHER TROUGH WILL DIG SEWD ACROSS OREGON
INTO NORTHERN CALIFORNIA MONDAY INTO TUESDAY. THIS WILL KEEP THE
CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWER GOING. ON MONDAY IT
APPEARS THAT THERE WILL BE SUFFICIENT INSTABILITY FOR ISOLATED
THUNDERSTORMS OVER THE NE OREGON MOUNTAINS. BY WEDNESDAY A DRYING
TREND SHOULD BEGIN AS A RIDGE OFFSHORE NUDGES INLAND. TEMPERATURES
WILL BE A BIT COOLER THAN NORMAL FOR MOST OF THE PERIOD WITH LOW
TEMPERATURES IN THE LOWLANDS FLIRTING WITH THE FREEZING MARK
DEPENDING ON CLOUD COVER AND WIND. IT WILL BE WELL BELOW FREEZING IN
THE MOUNTAINS AT NIGHT. DAYTIME HIGHS WILL START OUT MOSTLY 50S
LOWER ELEVATIONS WITH 30S AND 40S MOUNTAINS AND WARM TO THE 60S
LOWLANDS AND 45-50 MOUNTAINS BY WEDNESDAY. 78

&&

.AVIATION...12Z TAFS...VFR CONDITIONS WILL PREVAIL THROUGH THE
FORECAST PERIOD. EXPECT ISOLATED TO SCATTERED SHOWERS TO DEVELOP
TODAY AND CONTINUE INTO EARLY THIS EVENING. VERY ISOLATED
THUNDERSTORMS ARE POSSIBLE. WILL CARRY MAINLY VCSH IN THE TAFS.
CEILINGS WILL BE 4-7 KFT AGL WITH A MID CLOUD DECK ABOVE AROUND 10
KFT AGL. WEST WINDS WILL INCREASE AFTER 18Z TO 10-20 KT WITH SOME
HIGHER GUSTS AND PERSIST INTO THIS EVENING BEFORE DIMINISHING
OVERNIGHT. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  33  55  33 /  20  20  10  10
ALW  56  36  57  38 /  20  20  10  10
PSC  61  32  61  34 /  20  20  10  10
YKM  57  31  59  33 /  20  10  10  10
HRI  59  32  60  32 /  20  20  10   0
ELN  56  32  58  33 /  20  10  10  10
RDM  50  22  53  21 /  30  20  10   0
LGD  49  29  52  28 /  30  20  20  10
GCD  49  29  51  29 /  30  20  20  10
DLS  58  37  61  37 /  30  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 8 AM PDT THIS MORNING ORZ510.

WA...NONE.
&&

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

$$

89/78/78










000
FXUS66 KPDT 010935
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
235 AM PDT WED APR 1 2015

.SHORT TERM...TODAY THROUGH FRIDAY...WINDS WILL STILL BE A BIT
BREEZY TODAY AS A POSITIVELY TILTED SHORTWAVE WILL MOVE ACROSS THE
INTERIOR PACIFIC NORTHWEST THIS AFTERNOON.  SCATTERED
SHOWERS...MAINLY OVER THE MOUNTAINS WILL BE POSSIBLE.  ISOLATED
SHOWERS OVER THE BASIN.  THERE WILL BE SOME MARGINAL INSTABILITY
THAT COULD PROVIDE THUNDER OUT OF THESE SHOWERS.  CONFIDENCE IS NOT
HIGH ENOUGH WITH THE NORTHWEST FLOW THAT WE WILL SEE THUNDER TOO FAR
EAST OF THE CASCADES.  THEREFORE...HAVE BACKED OFF ON THE
THUNDERSTORM COVERAGE TODAY...BY TAKING OUT MOST OF THE BASIN.  BEST
CHANCE FOR THUNDER ALONG THE NORTHEAST MOUNTAINS TODAY SHOULD BE
BEFORE 5PM...AS FLOW IS STILL WESTERLY.  BY LATE EVENING THE
NORTHWEST FLOW WILL INHIBIT THE THUNDER POTENTIAL...THEREFORE HAVE
TAKEN THUNDER OUT AFTER 5PM FOR THE NORTHEAST MOUNTAINS.

AS THE SYSTEM EXITS THE AREA TONIGHT WE CAN EXPECT A BREAK IN THE
POPS FOR THE MOST PART THROUGH FRIDAY MORNING.  THERE IS STILL
ENOUGH LINGERING MOISTURE OVER WALLOWA COUNTY AND THE BLUES THAT
LIGHT UPSLOPE SHOWERS CAN`T BE RULED OUT.  COLDER AIR WILL CONTINUE
TO FUNNEL IN WITH THIS NORTHWEST FLOW...AND THE POTENTIAL FOR MOSTLY
CLEAR SKIES AT NIGHT COULD ALLOW FOR A WIDESPREAD FREEZE ACROSS OUR
AREA.  RIGHT NOW THE FORECAST MINIMUM TEMPERATURES ARE RIGHT AROUND
FREEZING FOR THE COLDEST SPOTS.  SO CONFIDENCE IS NOT HIGH ENOUGH TO
ISSUE A FREEZE WARNING.  WILL DEFER TO THE DAY SHIFT TO SEE IF ANY
FREEZE WARNINGS WILL BE NEEDED.  WEBER

.LONG TERM...FRIDAY NIGHT THROUGH WEDNESDAY...AN UPPER LEVEL LOW
WILL MOVE SEWD FROM OFF THE BRITISH COLUMBIA COAST ACROSS THE
PACIFIC NW OVER THE WEEKEND. THIS WILL RESULT IN UNSETTLED WEATHER
WITH A CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWERS ESPECIALLY
SUNDAY. THERE WILE BE ENOUGH COLD AIR ALOFT WITH THE SYSTEM FOR
ISOLATED THUNDERSTORMS ESPECIALLY WEST AND SOUTH SUNDAY AFTERNOON.
AS THE LOW EXITS THE AREA ANOTHER TROUGH WILL DIG SEWD ACROSS OREGON
INTO NORTHERN CALIFORNIA MONDAY INTO TUESDAY. THIS WILL KEEP THE
CHANCE FOR SHOWERS AND MOUNTAIN SNOW SHOWER GOING. ON MONDAY IT
APPEARS THAT THERE WILL BE SUFFICIENT INSTABILITY FOR ISOLATED
THUNDERSTORMS OVER THE NE OREGON MOUNTAINS. BY WEDNESDAY A DRYING
TREND SHOULD BEGIN AS A RIDGE OFFSHORE NUDGES INLAND. TEMPERATURES
WILL BE A BIT COOLER THAN NORMAL FOR MOST OF THE PERIOD WITH LOW
TEMPERATURES IN THE LOWLANDS FLIRTING WITH THE FREEZING MARK
DEPENDING ON CLOUD COVER AND WIND. IT WILL BE WELL BELOW FREEZING IN
THE MOUNTAINS AT NIGHT. DAYTIME HIGHS WILL START OUT MOSTLY 50S
LOWER ELEVATIONS WITH 30S AND 40S MOUNTAINS AND WARM TO THE 60S
LOWLANDS AND 45-50 MOUNTAINS BY WEDNESDAY. 78

&&

.AVIATION...12Z TAFS...VFR CONDITIONS WILL PREVAIL THROUGH THE
FORECAST PERIOD. EXPECT ISOLATED TO SCATTERED SHOWERS TO DEVELOP
TODAY AND CONTINUE INTO EARLY THIS EVENING. VERY ISOLATED
THUNDERSTORMS ARE POSSIBLE. WILL CARRY MAINLY VCSH IN THE TAFS.
CEILINGS WILL BE 4-7 KFT AGL WITH A MID CLOUD DECK ABOVE AROUND 10
KFT AGL. WEST WINDS WILL INCREASE AFTER 18Z TO 10-20 KT WITH SOME
HIGHER GUSTS AND PERSIST INTO THIS EVENING BEFORE DIMINISHING
OVERNIGHT. 78

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  54  33  55  33 /  20  20  10  10
ALW  56  36  57  38 /  20  20  10  10
PSC  61  32  61  34 /  20  20  10  10
YKM  57  31  59  33 /  20  10  10  10
HRI  59  32  60  32 /  20  20  10   0
ELN  56  32  58  33 /  20  10  10  10
RDM  50  22  53  21 /  30  20  10   0
LGD  49  29  52  28 /  30  20  20  10
GCD  49  29  51  29 /  30  20  20  10
DLS  58  37  61  37 /  30  20  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING UNTIL 8 AM PDT THIS MORNING ORZ510.

WA...NONE.
&&

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

$$

89/78/78










000
FXUS66 KPDT 010531 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
1031 PM PDT TUE MAR 31 2015

UPDATED AVIATION DISCUSSION

.UPDATE...PRESSURE GRADIENTS HAVE STARTED TO DECREASE THIS EVENING
THOUGH BREEZY CONDITIONS WILL PERSIST IN THE LOWER COLUMBIA BASIN
OVERNIGHT TONIGHT INTO WEDNESDAY. THEREFORE...HAVE DROPPED THE
WIND ADVISORY THROUGHOUT THE LOWER COLUMBIA BASIN AND THE
KITTITAS VALLEY. A COLDER AIRMASS HAS FILTERED INTO THE REGION
BEHIND THE PASSING WEATHER SYSTEM RESULTING IN TEMPERATURES THAT
ARE BETWEEN 15 TO 20 DEGREES COLDER VERSUS YESTERDAY. TEMPERATURES
WILL DROP BELOW FREEZING ACROSS CENTRAL OREGON...THE JOHN DAY
HIGHLANDS...PORTIONS OF THE GRANDE RONDE VALLEY AS WELL AS CENTRAL
OREGON. BASED UPON FEEDBACK FROM AGRICULTURE INTERESTS CONCERNING
EARLY BUDDING OF CROPS...HAVE OPTED TO ISSUE A FREEZE WARNING FOR
NORTH CENTRAL OREGON OVERNIGHT TONIGHT THROUGH SUNRISE WEDNESDAY.
ANOTHER SHORTWAVE TROUGH WILL APPROACH THE REGION WEDNESDAY WITH A
CHANCE OF RAIN SHOWERS AND SNOW SHOWERS ABOVE 2500 FEET. MARGINAL
INSTABILITY MAY ALSO PRESENT A SLIGHT CHANCE OF THUNDERSTORMS WITH
ISOLATED SPOTS OF SMALL HAIL WITH THE STRONGER STORMS. BIEDA

.AVIATION...06Z TAFS...A PASSING WEATHER SYSTEM WITH ANOTHER
APPROACHING MIDDAY WEDNESDAY WILL BRING UNSETTLED WEATHER DURING THE
TAF PERIOD.  BREEZY WESTERLY WINDS BTWN 15 TO 25 KTS WITH GUSTS UP
TO 30 KTS WILL OCCUR AT ALL TAF SITES BTWN 01/17Z AND 02/04Z...WITH
KPDT AND KALW EXPERIENCING THESE WINDS OVERNIGHT TONIGHT THRU
02/04Z.  PASSING SHOWERS WILL BRING LCL MVFR CIG IN AND NEAR SHOWERS
THROUGHOUT THE PERIOD.  AS TEMPERATURES PLUNGE OVER CENTRAL OREGON
AND SNOW LEVELS DROP...RAIN-SNOW MIX MAY START AT KBDN AND KRDM AFT
02/02Z CHANGING OVER TO -SN AFT 02/05Z WITH PERIODS OF IFR TO MVFR
CIG AND VIS.  BIEDA

&&

.PREV DISC... /ISSUED 229 PM PDT TUE MAR 31 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY...THE LATEST PACIFIC FRONT HAS
MOVED INTO IDAHO. SURFACE HEATING, COMBINED WITH COLD AIR ALOFT, HAS
RESULTED IN SHOWERS DEVELOPING OVER OUR WESTERN ZONES, ESPECIALLY IN
CENTRAL AND NORTH-CENTRAL OREGON. EXPECT THESE SHOWERS TO DEVELOP
ELSEWHERE AROUND THE AREA LATE THIS AFTERNOON UNTIL SUNSET. A FEW
STRAY THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL WILL ALSO
CONTINUE TO BE POSSIBLE UNTIL SUNSET. WINDS HAVE LARGELY BEEN
STAYING UNDER 30 MPH SUSTAINED. WITH MIXING AND THE CONVECTIVE
ACTIVITY, WILL KEEP ALL CURRENT WIND ADVISORIES GOING INTO THE
EVENING. WESTERLY SURFACE FLOW WILL KEEP ISOLATED TO SCATTERED
SHOWERS GOING OVERNIGHT INTO WEDNESDAY MORNING. THESE SHOWERS WILL
MAINLY OCCUR OVER THE HIGHER TERRAIN. SNOW LEVELS WILL FALL TO
BETWEEN 2000 AND 2500 FEET OVERNIGHT, BUT SNOW AMOUNTS WILL BE LIGHT
AND LOCALIZED DUE TO THE SHOWERY NATURE OF THE PRECIP. COLD AIR
ALOFT WILL CONTINUE OVER THE REGION WEDNESDAY AFTERNOON. THUS
DAYTIME HEATING UNDER THIS COLD AIR WILL RESULT IN THE DEVELOPMENT
OF ISOLATED TO SCATTERED SHOWERS AND STRAY THUNDERSTORMS. THESE WILL
PERSIST UNTIL SUNSET WEDNESDAY EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING ALONG THE WASHINGTON CASCADE CREST AND FROM THE
NORTHERN BLUE MOUNTAINS EAST TO WALLOWA COUNTY THURSDAY. A STRAY
THUNDERSTORM MAY DEVELOP AS WELL OVER WALLOWA COUNTY. MOSTLY DRY
CONDITIONS ARE EXPECTED THURSDAY NIGHT. ANOTHER PACIFIC SYSTEM WILL
BEGIN TO PUSH SOME LIGHT PRECIP INTO THE CASCADE EAST SLOPES FRIDAY.
90

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...A LOW PRESSURE SYSTEM
OVER THE NE PAC WILL SPIN DISTURBANCES INTO THE PACNW THIS WEEKEND
KEEPING OUR AREA UNDER CLOUDS AND SHOWERS. THE LOW PRESSURE SYSTEM
WILL INCH CLOSER TO OR/WA ON SUNDAY AND THE PCPN CHANCES SHOULD
INCREASE. SNOW LEVELS WILL HOVER AROUND 3000 TO 3500 FT AND SOME
SNOW ACCUMULATION IS POSSIBLE ACROSS THE HIGHER ELEVATIONS. THE
LOW IS FORECAST TO MOVE INLAND MONDAY AND THE UNSETTLED WEATHER
WILL CONTINUE INTO THE BEGINNING OF THE WORK WEEK. ANOTHER
STRONGER SYSTEM APPROACHES THE TWO STATE AREA TUESDAY THAT WILL
KEEP THE CLOUDS AND SHOWERS IN THE FORECAST INTO THE MIDDLE OF THE
WORK WEEK. TEMPERATURES WILL REMAIN BELOW NORMAL THROUGH THE
PERIOD.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  53  34  54 /  20  30  30  10
ALW  41  55  38  56 /  20  30  30  10
PSC  38  61  33  62 /  10  20  20  10
YKM  34  58  32  60 /  20  20  20  10
HRI  37  59  34  60 /  10  20  20  10
ELN  34  57  33  59 /  20  20  20  10
RDM  24  49  21  51 /  20  30  20  10
LGD  33  49  30  52 /  30  40  20  20
GCD  28  48  26  52 /  30  30  30  20
DLS  38  59  38  62 /  30  30  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM 2 AM TO 8 AM PDT WEDNESDAY ORZ510.

WA...NONE.
&&

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

$$

98/97/98










000
FXUS66 KPDT 010346
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
846 PM PDT TUE MAR 31 2015

.UPDATE...PRESSURE GRADIENTS HAVE STARTED TO DECREASE THIS EVENING
THOUGH BREEZY CONDITIONS WILL PERSIST IN THE LOWER COLUMBIA BASIN
OVERNIGHT TONIGHT INTO WEDNESDAY. THEREFORE...HAVE DROPPED THE
WIND ADVISORY THROUGHOUT THE LOWER COLUMBIA BASIN AND THE
KITTITAS VALLEY. A COLDER AIRMASS HAS FILTERED INTO THE REGION
BEHIND THE PASSING WEATHER SYSTEM RESULTING IN TEMPERATURES THAT
ARE BETWEEN 15 TO 20 DEGREES COLDER VERSUS YESTERDAY. TEMPERATURES
WILL DROP BELOW FREEZING ACROSS CENTRAL OREGON...THE JOHN DAY
HIGHLANDS...PORTIONS OF THE GRANDE RONDE VALLEY AS WELL AS CENTRAL
OREGON. BASED UPON FEEDBACK FROM AGRICULTURE INTERESTS CONCERNING
EARLY BUDDING OF CROPS...HAVE OPTED TO ISSUE A FREEZE WARNING FOR
NORTH CENTRAL OREGON OVERNIGHT TONIGHT THROUGH SUNRISE WEDNESDAY.
ANOTHER SHORTWAVE TROUGH WILL APPROACH THE REGION WEDNESDAY WITH A
CHANCE OF RAIN SHOWERS AND SNOW SHOWERS ABOVE 2500 FEET. MARGINAL
INSTABILITY MAY ALSO PRESENT A SLIGHT CHANCE OF THUNDERSTORMS WITH
ISOLATED SPOTS OF SMALL HAIL WITH THE STRONGER STORMS. BIEDA


&&

.PREV DISC... /ISSUED 229 PM PDT TUE MAR 31 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY...THE LATEST PACIFIC FRONT HAS
MOVED INTO IDAHO. SURFACE HEATING, COMBINED WITH COLD AIR ALOFT, HAS
RESULTED IN SHOWERS DEVELOPING OVER OUR WESTERN ZONES, ESPECIALLY IN
CENTRAL AND NORTH-CENTRAL OREGON. EXPECT THESE SHOWERS TO DEVELOP
ELSEWHERE AROUND THE AREA LATE THIS AFTERNOON UNTIL SUNSET. A FEW
STRAY THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL WILL ALSO
CONTINUE TO BE POSSIBLE UNTIL SUNSET. WINDS HAVE LARGELY BEEN
STAYING UNDER 30 MPH SUSTAINED. WITH MIXING AND THE CONVECTIVE
ACTIVITY, WILL KEEP ALL CURRENT WIND ADVISORIES GOING INTO THE
EVENING. WESTERLY SURFACE FLOW WILL KEEP ISOLATED TO SCATTERED
SHOWERS GOING OVERNIGHT INTO WEDNESDAY MORNING. THESE SHOWERS WILL
MAINLY OCCUR OVER THE HIGHER TERRAIN. SNOW LEVELS WILL FALL TO
BETWEEN 2000 AND 2500 FEET OVERNIGHT, BUT SNOW AMOUNTS WILL BE LIGHT
AND LOCALIZED DUE TO THE SHOWERY NATURE OF THE PRECIP. COLD AIR
ALOFT WILL CONTINUE OVER THE REGION WEDNESDAY AFTERNOON. THUS
DAYTIME HEATING UNDER THIS COLD AIR WILL RESULT IN THE DEVELOPMENT
OF ISOLATED TO SCATTERED SHOWERS AND STRAY THUNDERSTORMS. THESE WILL
PERSIST UNTIL SUNSET WEDNESDAY EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING ALONG THE WASHINGTON CASCADE CREST AND FROM THE
NORTHERN BLUE MOUNTAINS EAST TO WALLOWA COUNTY THURSDAY. A STRAY
THUNDERSTORM MAY DEVELOP AS WELL OVER WALLOWA COUNTY. MOSTLY DRY
CONDITIONS ARE EXPECTED THURSDAY NIGHT. ANOTHER PACIFIC SYSTEM WILL
BEGIN TO PUSH SOME LIGHT PRECIP INTO THE CASCADE EAST SLOPES FRIDAY.
90

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...A LOW PRESSURE SYSTEM
OVER THE NE PAC WILL SPIN DISTURBANCES INTO THE PACNW THIS WEEKEND
KEEPING OUR AREA UNDER CLOUDS AND SHOWERS. THE LOW PRESSURE SYSTEM
WILL INCH CLOSER TO OR/WA ON SUNDAY AND THE PCPN CHANCES SHOULD
INCREASE. SNOW LEVELS WILL HOVER AROUND 3000 TO 3500 FT AND SOME
SNOW ACCUMULATION IS POSSIBLE ACROSS THE HIGHER ELEVATIONS. THE
LOW IS FORECAST TO MOVE INLAND MONDAY AND THE UNSETTLED WEATHER
WILL CONTINUE INTO THE BEGINNING OF THE WORK WEEK. ANOTHER
STRONGER SYSTEM APPROACHES THE TWO STATE AREA TUESDAY THAT WILL
KEEP THE CLOUDS AND SHOWERS IN THE FORECAST INTO THE MIDDLE OF THE
WORK WEEK. TEMPERATURES WILL REMAIN BELOW NORMAL THROUGH THE
PERIOD.

AVIATION...00Z TAFS...LCL MVFR CEILINGS IN AND NEAR SHOWERS THAT
WILL PERSIST ACROSS ALL TAF SITES INTO TONIGHT. OTHERWISE THE ENTIRE
AREA WILL EXPERIENCE BRIEF WIND GUSTS TO 35 KTS BEFORE DECREASING
AFTER 02Z. ANOTHER WEAK DISTURBANCE WILL MOVE THROUGH THE REGION
AROUND 08Z WHICH COULD CREATE LCL MVFR CEILINGS INTO TOMORROW WHICH
COULD CREATE LCL IFR CONDITIONS IN HEAVIER SHOWERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  53  34  54 /  20  30  30  10
ALW  41  55  38  56 /  20  30  30  10
PSC  38  61  33  62 /  10  20  20  10
YKM  34  58  32  60 /  20  20  20  10
HRI  37  59  34  60 /  10  20  20  10
ELN  34  57  33  59 /  20  20  20  10
RDM  24  49  21  51 /  20  30  20  10
LGD  33  49  30  52 /  30  40  20  20
GCD  28  48  26  52 /  30  30  30  20
DLS  38  59  38  62 /  30  30  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM 2 AM TO 8 AM PDT WEDNESDAY ORZ510.

WA...NONE.
&&

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

$$

98/97/97








000
FXUS66 KPDT 010346
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
846 PM PDT TUE MAR 31 2015

.UPDATE...PRESSURE GRADIENTS HAVE STARTED TO DECREASE THIS EVENING
THOUGH BREEZY CONDITIONS WILL PERSIST IN THE LOWER COLUMBIA BASIN
OVERNIGHT TONIGHT INTO WEDNESDAY. THEREFORE...HAVE DROPPED THE
WIND ADVISORY THROUGHOUT THE LOWER COLUMBIA BASIN AND THE
KITTITAS VALLEY. A COLDER AIRMASS HAS FILTERED INTO THE REGION
BEHIND THE PASSING WEATHER SYSTEM RESULTING IN TEMPERATURES THAT
ARE BETWEEN 15 TO 20 DEGREES COLDER VERSUS YESTERDAY. TEMPERATURES
WILL DROP BELOW FREEZING ACROSS CENTRAL OREGON...THE JOHN DAY
HIGHLANDS...PORTIONS OF THE GRANDE RONDE VALLEY AS WELL AS CENTRAL
OREGON. BASED UPON FEEDBACK FROM AGRICULTURE INTERESTS CONCERNING
EARLY BUDDING OF CROPS...HAVE OPTED TO ISSUE A FREEZE WARNING FOR
NORTH CENTRAL OREGON OVERNIGHT TONIGHT THROUGH SUNRISE WEDNESDAY.
ANOTHER SHORTWAVE TROUGH WILL APPROACH THE REGION WEDNESDAY WITH A
CHANCE OF RAIN SHOWERS AND SNOW SHOWERS ABOVE 2500 FEET. MARGINAL
INSTABILITY MAY ALSO PRESENT A SLIGHT CHANCE OF THUNDERSTORMS WITH
ISOLATED SPOTS OF SMALL HAIL WITH THE STRONGER STORMS. BIEDA


&&

.PREV DISC... /ISSUED 229 PM PDT TUE MAR 31 2015/

SHORT TERM...TONIGHT THROUGH FRIDAY...THE LATEST PACIFIC FRONT HAS
MOVED INTO IDAHO. SURFACE HEATING, COMBINED WITH COLD AIR ALOFT, HAS
RESULTED IN SHOWERS DEVELOPING OVER OUR WESTERN ZONES, ESPECIALLY IN
CENTRAL AND NORTH-CENTRAL OREGON. EXPECT THESE SHOWERS TO DEVELOP
ELSEWHERE AROUND THE AREA LATE THIS AFTERNOON UNTIL SUNSET. A FEW
STRAY THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL WILL ALSO
CONTINUE TO BE POSSIBLE UNTIL SUNSET. WINDS HAVE LARGELY BEEN
STAYING UNDER 30 MPH SUSTAINED. WITH MIXING AND THE CONVECTIVE
ACTIVITY, WILL KEEP ALL CURRENT WIND ADVISORIES GOING INTO THE
EVENING. WESTERLY SURFACE FLOW WILL KEEP ISOLATED TO SCATTERED
SHOWERS GOING OVERNIGHT INTO WEDNESDAY MORNING. THESE SHOWERS WILL
MAINLY OCCUR OVER THE HIGHER TERRAIN. SNOW LEVELS WILL FALL TO
BETWEEN 2000 AND 2500 FEET OVERNIGHT, BUT SNOW AMOUNTS WILL BE LIGHT
AND LOCALIZED DUE TO THE SHOWERY NATURE OF THE PRECIP. COLD AIR
ALOFT WILL CONTINUE OVER THE REGION WEDNESDAY AFTERNOON. THUS
DAYTIME HEATING UNDER THIS COLD AIR WILL RESULT IN THE DEVELOPMENT
OF ISOLATED TO SCATTERED SHOWERS AND STRAY THUNDERSTORMS. THESE WILL
PERSIST UNTIL SUNSET WEDNESDAY EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING ALONG THE WASHINGTON CASCADE CREST AND FROM THE
NORTHERN BLUE MOUNTAINS EAST TO WALLOWA COUNTY THURSDAY. A STRAY
THUNDERSTORM MAY DEVELOP AS WELL OVER WALLOWA COUNTY. MOSTLY DRY
CONDITIONS ARE EXPECTED THURSDAY NIGHT. ANOTHER PACIFIC SYSTEM WILL
BEGIN TO PUSH SOME LIGHT PRECIP INTO THE CASCADE EAST SLOPES FRIDAY.
90

LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...A LOW PRESSURE SYSTEM
OVER THE NE PAC WILL SPIN DISTURBANCES INTO THE PACNW THIS WEEKEND
KEEPING OUR AREA UNDER CLOUDS AND SHOWERS. THE LOW PRESSURE SYSTEM
WILL INCH CLOSER TO OR/WA ON SUNDAY AND THE PCPN CHANCES SHOULD
INCREASE. SNOW LEVELS WILL HOVER AROUND 3000 TO 3500 FT AND SOME
SNOW ACCUMULATION IS POSSIBLE ACROSS THE HIGHER ELEVATIONS. THE
LOW IS FORECAST TO MOVE INLAND MONDAY AND THE UNSETTLED WEATHER
WILL CONTINUE INTO THE BEGINNING OF THE WORK WEEK. ANOTHER
STRONGER SYSTEM APPROACHES THE TWO STATE AREA TUESDAY THAT WILL
KEEP THE CLOUDS AND SHOWERS IN THE FORECAST INTO THE MIDDLE OF THE
WORK WEEK. TEMPERATURES WILL REMAIN BELOW NORMAL THROUGH THE
PERIOD.

AVIATION...00Z TAFS...LCL MVFR CEILINGS IN AND NEAR SHOWERS THAT
WILL PERSIST ACROSS ALL TAF SITES INTO TONIGHT. OTHERWISE THE ENTIRE
AREA WILL EXPERIENCE BRIEF WIND GUSTS TO 35 KTS BEFORE DECREASING
AFTER 02Z. ANOTHER WEAK DISTURBANCE WILL MOVE THROUGH THE REGION
AROUND 08Z WHICH COULD CREATE LCL MVFR CEILINGS INTO TOMORROW WHICH
COULD CREATE LCL IFR CONDITIONS IN HEAVIER SHOWERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  53  34  54 /  20  30  30  10
ALW  41  55  38  56 /  20  30  30  10
PSC  38  61  33  62 /  10  20  20  10
YKM  34  58  32  60 /  20  20  20  10
HRI  37  59  34  60 /  10  20  20  10
ELN  34  57  33  59 /  20  20  20  10
RDM  24  49  21  51 /  20  30  20  10
LGD  33  49  30  52 /  30  40  20  20
GCD  28  48  26  52 /  30  30  30  20
DLS  38  59  38  62 /  30  30  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...FREEZE WARNING FROM 2 AM TO 8 AM PDT WEDNESDAY ORZ510.

WA...NONE.
&&

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

$$

98/97/97







000
FXUS66 KPDT 312129
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
229 PM PDT TUE MAR 31 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY...THE LATEST PACIFIC FRONT HAS
MOVED INTO IDAHO. SURFACE HEATING, COMBINED WITH COLD AIR ALOFT, HAS
RESULTED IN SHOWERS DEVELOPING OVER OUR WESTERN ZONES, ESPECIALLY IN
CENTRAL AND NORTH-CENTRAL OREGON. EXPECT THESE SHOWERS TO DEVELOP
ELSEWHERE AROUND THE AREA LATE THIS AFTERNOON UNTIL SUNSET. A FEW
STRAY THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL WILL ALSO
CONTINUE TO BE POSSIBLE UNTIL SUNSET. WINDS HAVE LARGELY BEEN
STAYING UNDER 30 MPH SUSTAINED. WITH MIXING AND THE CONVECTIVE
ACTIVITY, WILL KEEP ALL CURRENT WIND ADVISORIES GOING INTO THE
EVENING. WESTERLY SURFACE FLOW WILL KEEP ISOLATED TO SCATTERED
SHOWERS GOING OVERNIGHT INTO WEDNESDAY MORNING. THESE SHOWERS WILL
MAINLY OCCUR OVER THE HIGHER TERRAIN. SNOW LEVELS WILL FALL TO
BETWEEN 2000 AND 2500 FEET OVERNIGHT, BUT SNOW AMOUNTS WILL BE LIGHT
AND LOCALIZED DUE TO THE SHOWERY NATURE OF THE PRECIP. COLD AIR
ALOFT WILL CONTINUE OVER THE REGION WEDNESDAY AFTERNOON. THUS
DAYTIME HEATING UNDER THIS COLD AIR WILL RESULT IN THE DEVELOPMENT
OF ISOLATED TO SCATTERED SHOWERS AND STRAY THUNDERSTORMS. THESE WILL
PERSIST UNTIL SUNSET WEDNESDAY EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING ALONG THE WASHINGTON CASCADE CREST AND FROM THE
NORTHERN BLUE MOUNTAINS EAST TO WALLOWA COUNTY THURSDAY. A STRAY
THUNDERSTORM MAY DEVELOP AS WELL OVER WALLOWA COUNTY. MOSTLY DRY
CONDITIONS ARE EXPECTED THURSDAY NIGHT. ANOTHER PACIFIC SYSTEM WILL
BEGIN TO PUSH SOME LIGHT PRECIP INTO THE CASCADE EAST SLOPES FRIDAY.
90

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...A LOW PRESSURE SYSTEM
OVER THE NE PAC WILL SPIN DISTURBANCES INTO THE PACNW THIS WEEKEND
KEEPING OUR AREA UNDER CLOUDS AND SHOWERS. THE LOW PRESSURE SYSTEM
WILL INCH CLOSER TO OR/WA ON SUNDAY AND THE PCPN CHANCES SHOULD
INCREASE. SNOW LEVELS WILL HOVER AROUND 3K-3500K AND SOME SNOW
ACCUMULATION IS POSSIBLE ACROSS THE HIGHER ELEVATIONS. THE LOW IS
FORECAST TO MOVE INLAND MONDAY AND THE UNSETTLED WEATHER WILL
CONTINUE INTO THE BEGINNING OF THE WORK WEEK. ANOTHER STRONGER
SYSTEM APPROACHES THE TWO STATE AREA TUESDAY THAT WILL KEEP THE
CLOUDS AND SHOWERS IN THE FORECAST INTO THE MIDDLE OF THE WORK WEEK.
TEMPERATURES WILL REMAIN BELOW NORMAL THROUGH THE PERIOD.

&&

.AVIATION...00Z TAFS...LCL MVFR CEILINGS IN AND NEAR SHOWERS THAT
WILL PERSIST ACROSS ALL TAF SITES INTO TONIGHT. OTHERWISE THE ENTIRE
AREA WILL EXPERIENCE BRIEF WIND GUSTS TO 35 KTS BEFORE DECREASING
AFTER 02Z. ANOTHER WEAK DISTURBANCE WILL MOVE THROUGH THE REGION
AROUND 08Z WHICH COULD CREATE LCL MVFR CEILINGS INTO TOMORROW WHICH
COULD CREATE LCL IFR CONDITIONS IN HEAVIER SHOWERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  53  34  54 /  20  30  30  10
ALW  42  55  38  56 /  20  30  30  10
PSC  38  61  33  62 /  10  20  20  10
YKM  34  59  32  60 /  20  30  20  10
HRI  37  59  34  60 /  10  30  20  10
ELN  34  58  33  59 /  20  30  20  10
RDM  24  48  21  51 /  20  40  20  10
LGD  35  50  30  52 /  30  40  20  20
GCD  27  49  26  52 /  30  30  30  20
DLS  39  59  38  62 /  30  30  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/97/97









000
FXUS66 KPDT 312129
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
229 PM PDT TUE MAR 31 2015

.SHORT TERM...TONIGHT THROUGH FRIDAY...THE LATEST PACIFIC FRONT HAS
MOVED INTO IDAHO. SURFACE HEATING, COMBINED WITH COLD AIR ALOFT, HAS
RESULTED IN SHOWERS DEVELOPING OVER OUR WESTERN ZONES, ESPECIALLY IN
CENTRAL AND NORTH-CENTRAL OREGON. EXPECT THESE SHOWERS TO DEVELOP
ELSEWHERE AROUND THE AREA LATE THIS AFTERNOON UNTIL SUNSET. A FEW
STRAY THUNDERSTORMS CAPABLE OF PRODUCING SMALL HAIL WILL ALSO
CONTINUE TO BE POSSIBLE UNTIL SUNSET. WINDS HAVE LARGELY BEEN
STAYING UNDER 30 MPH SUSTAINED. WITH MIXING AND THE CONVECTIVE
ACTIVITY, WILL KEEP ALL CURRENT WIND ADVISORIES GOING INTO THE
EVENING. WESTERLY SURFACE FLOW WILL KEEP ISOLATED TO SCATTERED
SHOWERS GOING OVERNIGHT INTO WEDNESDAY MORNING. THESE SHOWERS WILL
MAINLY OCCUR OVER THE HIGHER TERRAIN. SNOW LEVELS WILL FALL TO
BETWEEN 2000 AND 2500 FEET OVERNIGHT, BUT SNOW AMOUNTS WILL BE LIGHT
AND LOCALIZED DUE TO THE SHOWERY NATURE OF THE PRECIP. COLD AIR
ALOFT WILL CONTINUE OVER THE REGION WEDNESDAY AFTERNOON. THUS
DAYTIME HEATING UNDER THIS COLD AIR WILL RESULT IN THE DEVELOPMENT
OF ISOLATED TO SCATTERED SHOWERS AND STRAY THUNDERSTORMS. THESE WILL
PERSIST UNTIL SUNSET WEDNESDAY EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING ALONG THE WASHINGTON CASCADE CREST AND FROM THE
NORTHERN BLUE MOUNTAINS EAST TO WALLOWA COUNTY THURSDAY. A STRAY
THUNDERSTORM MAY DEVELOP AS WELL OVER WALLOWA COUNTY. MOSTLY DRY
CONDITIONS ARE EXPECTED THURSDAY NIGHT. ANOTHER PACIFIC SYSTEM WILL
BEGIN TO PUSH SOME LIGHT PRECIP INTO THE CASCADE EAST SLOPES FRIDAY.
90

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...A LOW PRESSURE SYSTEM
OVER THE NE PAC WILL SPIN DISTURBANCES INTO THE PACNW THIS WEEKEND
KEEPING OUR AREA UNDER CLOUDS AND SHOWERS. THE LOW PRESSURE SYSTEM
WILL INCH CLOSER TO OR/WA ON SUNDAY AND THE PCPN CHANCES SHOULD
INCREASE. SNOW LEVELS WILL HOVER AROUND 3K-3500K AND SOME SNOW
ACCUMULATION IS POSSIBLE ACROSS THE HIGHER ELEVATIONS. THE LOW IS
FORECAST TO MOVE INLAND MONDAY AND THE UNSETTLED WEATHER WILL
CONTINUE INTO THE BEGINNING OF THE WORK WEEK. ANOTHER STRONGER
SYSTEM APPROACHES THE TWO STATE AREA TUESDAY THAT WILL KEEP THE
CLOUDS AND SHOWERS IN THE FORECAST INTO THE MIDDLE OF THE WORK WEEK.
TEMPERATURES WILL REMAIN BELOW NORMAL THROUGH THE PERIOD.

&&

.AVIATION...00Z TAFS...LCL MVFR CEILINGS IN AND NEAR SHOWERS THAT
WILL PERSIST ACROSS ALL TAF SITES INTO TONIGHT. OTHERWISE THE ENTIRE
AREA WILL EXPERIENCE BRIEF WIND GUSTS TO 35 KTS BEFORE DECREASING
AFTER 02Z. ANOTHER WEAK DISTURBANCE WILL MOVE THROUGH THE REGION
AROUND 08Z WHICH COULD CREATE LCL MVFR CEILINGS INTO TOMORROW WHICH
COULD CREATE LCL IFR CONDITIONS IN HEAVIER SHOWERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  37  53  34  54 /  20  30  30  10
ALW  42  55  38  56 /  20  30  30  10
PSC  38  61  33  62 /  10  20  20  10
YKM  34  59  32  60 /  20  30  20  10
HRI  37  59  34  60 /  10  30  20  10
ELN  34  58  33  59 /  20  30  20  10
RDM  24  48  21  51 /  20  40  20  10
LGD  35  50  30  52 /  30  40  20  20
GCD  27  49  26  52 /  30  30  30  20
DLS  39  59  38  62 /  30  30  20  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/97/97








000
FXUS66 KPDT 311759 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1055 AM PDT TUE MAR 31 2015

UPDATED THE AVIATION DISCUSSION

.SHORT TERM...MORNING UPDATE...CURRENTLY A COLD FRONT EXTENDS FROM
EXTREME EASTERN WASHINGTON INTO THE BLUE MOUNTAINS THEN SOUTH TO
SOUTH-CENTRAL OREGON. THIS FRONT WILL CONTINUE TO MOVE EAST AND
SHOULD BE THROUGH EASTERN OREGON BY NOON. WINDS HAVE BEEN JUMPING UP
JUST BEHIND THE FRONT, THEN LIGHTENING. EXPECT GRADIENTS TO CONTINUE
TIGHTENING ACROSS THE REGION LATE THIS MORNING INTO THIS AFTERNOON.
THUS WILL CONTINUE THE WIND ADVISORY FOR THE KITTITAS VALLEY. HAVE
ALSO ADDED WIND ADVISORIES FOR THE GORGE, THE SIMCOE HIGHLANDS, THE
OREGON LOWER BASIN AND THE OREGON BLUE MOUNTAIN FOOTHILLS. RAIN
SHOWERS HAVE BEEN OCCURRING WITH AND JUST BEHIND THE FRONT.
AFTERNOON HEATING COMBINED WITH COLD AIR ADVECTION ALOFT WILL RESULT
IN ISOLATED TO SCATTERED SHOWERS REDEVELOPING THIS AFTERNOON OVER
MUCH OF THE AREA. ALSO STRAY THUNDERSTORMS WILL BE POSSIBLE. SOME OF
THESE STORMS MAY PRODUCE SMALL HAIL. UPDATES THIS MORNING FOCUSED ON
WINDS FOR THE ADDED ADVISORIES, AND ADJUSTMENTS TO SHOWER COVERAGES
AND LOCATIONS OF POSSIBLE THUNDERSTORMS. 90

.LONG TERM...PREVIOUS DISCUSSION...WEAK RIDGING EXPECTED THURSDAY
NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION EXPECTED.
STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE TO THE
WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE SHOWERS
COULD STILL DEVELOP. FLOW WILL SHIFT WESTERLY FRIDAY EVENING WITH AN
INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES DOWN FROM THE GULF
OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW WITH INCREASED
MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY. HOWEVER...THE
TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE POTENTIAL FOR
THUNDER ON SUNDAY AFTERNOON. ECMWF STILL HAS THE LOW JUST OFF THE
COAST DURING THE AFTERNOON ALLOWING FOR MORE INSTABILITY AND BETTER
CHANCES OF THUNDER ACROSS NORTHEAST OREGON. BUT GFS STILL HAS THE
LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF A SHORTWAVE...AND
QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY MONDAY EVENING.
OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY GOOD FOR THE LATER
PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF YEAR.
THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH MAY BE A
COUPLE DEGREES BELOW NORMAL. SO WHILE THIS IS A CONTINUED COOL AND
UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL STILL BE
RIGHT AROUND NORMAL.

&&

.AVIATION...LCL MVFR CEILINGS IN AND NEAR SHOWERS WILL PERSIST
ESPECIALLY AT TAF SITES KPDT...KALW UNTIL AROUND 20Z WHEN A RETURN
TO MAINLY VFR CONDITIONS CAN BE EXPECTED BUT OCCASIONALLY LCL
CEILINGS WILL REMAIN POSSIBLE. OTHERWISE THE ENTIRE AREA WILL
EXPERIENCE BRIEF WIND GUSTS TO 35 KTS BEFORE DECREASING AFTER 02Z.
ANOTHER WEAK DISTURBANCE WILL MOVE THROUGH THE REGION AROUND 08Z
WHICH COULD CREATE LCL MVFR CEILINGS INTO TOMORROW MORNING.

&&


.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  50  20  30  30
PSC  62  36  60  34 /  20  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  20  20  40  20
LGD  52  32  49  30 /  50  20  40  20
GCD  50  27  48  29 /  50  20  30  20
DLS  60  37  57  38 /  30  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/97








000
FXUS66 KPDT 311759 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1055 AM PDT TUE MAR 31 2015

UPDATED THE AVIATION DISCUSSION

.SHORT TERM...MORNING UPDATE...CURRENTLY A COLD FRONT EXTENDS FROM
EXTREME EASTERN WASHINGTON INTO THE BLUE MOUNTAINS THEN SOUTH TO
SOUTH-CENTRAL OREGON. THIS FRONT WILL CONTINUE TO MOVE EAST AND
SHOULD BE THROUGH EASTERN OREGON BY NOON. WINDS HAVE BEEN JUMPING UP
JUST BEHIND THE FRONT, THEN LIGHTENING. EXPECT GRADIENTS TO CONTINUE
TIGHTENING ACROSS THE REGION LATE THIS MORNING INTO THIS AFTERNOON.
THUS WILL CONTINUE THE WIND ADVISORY FOR THE KITTITAS VALLEY. HAVE
ALSO ADDED WIND ADVISORIES FOR THE GORGE, THE SIMCOE HIGHLANDS, THE
OREGON LOWER BASIN AND THE OREGON BLUE MOUNTAIN FOOTHILLS. RAIN
SHOWERS HAVE BEEN OCCURRING WITH AND JUST BEHIND THE FRONT.
AFTERNOON HEATING COMBINED WITH COLD AIR ADVECTION ALOFT WILL RESULT
IN ISOLATED TO SCATTERED SHOWERS REDEVELOPING THIS AFTERNOON OVER
MUCH OF THE AREA. ALSO STRAY THUNDERSTORMS WILL BE POSSIBLE. SOME OF
THESE STORMS MAY PRODUCE SMALL HAIL. UPDATES THIS MORNING FOCUSED ON
WINDS FOR THE ADDED ADVISORIES, AND ADJUSTMENTS TO SHOWER COVERAGES
AND LOCATIONS OF POSSIBLE THUNDERSTORMS. 90

.LONG TERM...PREVIOUS DISCUSSION...WEAK RIDGING EXPECTED THURSDAY
NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION EXPECTED.
STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE TO THE
WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE SHOWERS
COULD STILL DEVELOP. FLOW WILL SHIFT WESTERLY FRIDAY EVENING WITH AN
INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES DOWN FROM THE GULF
OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW WITH INCREASED
MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY. HOWEVER...THE
TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE POTENTIAL FOR
THUNDER ON SUNDAY AFTERNOON. ECMWF STILL HAS THE LOW JUST OFF THE
COAST DURING THE AFTERNOON ALLOWING FOR MORE INSTABILITY AND BETTER
CHANCES OF THUNDER ACROSS NORTHEAST OREGON. BUT GFS STILL HAS THE
LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF A SHORTWAVE...AND
QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY MONDAY EVENING.
OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY GOOD FOR THE LATER
PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF YEAR.
THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH MAY BE A
COUPLE DEGREES BELOW NORMAL. SO WHILE THIS IS A CONTINUED COOL AND
UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL STILL BE
RIGHT AROUND NORMAL.

&&

.AVIATION...LCL MVFR CEILINGS IN AND NEAR SHOWERS WILL PERSIST
ESPECIALLY AT TAF SITES KPDT...KALW UNTIL AROUND 20Z WHEN A RETURN
TO MAINLY VFR CONDITIONS CAN BE EXPECTED BUT OCCASIONALLY LCL
CEILINGS WILL REMAIN POSSIBLE. OTHERWISE THE ENTIRE AREA WILL
EXPERIENCE BRIEF WIND GUSTS TO 35 KTS BEFORE DECREASING AFTER 02Z.
ANOTHER WEAK DISTURBANCE WILL MOVE THROUGH THE REGION AROUND 08Z
WHICH COULD CREATE LCL MVFR CEILINGS INTO TOMORROW MORNING.

&&


.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  50  20  30  30
PSC  62  36  60  34 /  20  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  20  20  40  20
LGD  52  32  49  30 /  50  20  40  20
GCD  50  27  48  29 /  50  20  30  20
DLS  60  37  57  38 /  30  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/97







000
FXUS66 KPDT 311637
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
937 AM PDT TUE MAR 31 2015

.SHORT TERM...MORNING UPDATE...CURRENTLY A COLD FRONT EXTENDS FROM
EXTREME EASTERN WASHINGTON INTO THE BLUE MOUNTAINS THEN SOUTH TO
SOUTH-CENTRAL OREGON. THIS FRONT WILL CONTINUE TO MOVE EAST AND
SHOULD BE THROUGH EASTERN OREGON BY NOON. WINDS HAVE BEEN JUMPING UP
JUST BEHIND THE FRONT, THEN LIGHTENING. EXPECT GRADIENTS TO CONTINUE
TIGHTENING ACROSS THE REGION LATE THIS MORNING INTO THIS AFTERNOON.
THUS WILL CONTINUE THE WIND ADVISORY FOR THE KITTITAS VALLEY. HAVE
ALSO ADDED WIND ADVISORIES FOR THE GORGE, THE SIMCOE HIGHLANDS, THE
OREGON LOWER BASIN AND THE OREGON BLUE MOUNTAIN FOOTHILLS. RAIN
SHOWERS HAVE BEEN OCCURRING WITH AND JUST BEHIND THE FRONT.
AFTERNOON HEATING COMBINED WITH COLD AIR ADVECTION ALOFT WILL RESULT
IN ISOLATED TO SCATTERED SHOWERS REDEVELOPING THIS AFTERNOON OVER
MUCH OF THE AREA. ALSO STRAY THUNDERSTORMS WILL BE POSSIBLE. SOME OF
THESE STORMS MAY PRODUCE SMALL HAIL. UPDATES THIS MORNING FOCUSED ON
WINDS FOR THE ADDED ADVISORIES, AND ADJUSTMENTS TO SHOWER COVERAGES
AND LOCATIONS OF POSSIBLE THUNDERSTORMS. 90

.LONG TERM...PREVIOUS DISCUSSION...WEAK RIDGING EXPECTED THURSDAY
NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION EXPECTED.
STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE TO THE
WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE SHOWERS
COULD STILL DEVELOP. FLOW WILL SHIFT WESTERLY FRIDAY EVENING WITH AN
INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES DOWN FROM THE GULF
OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW WITH INCREASED
MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY. HOWEVER...THE
TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE POTENTIAL FOR
THUNDER ON SUNDAY AFTERNOON. ECMWF STILL HAS THE LOW JUST OFF THE
COAST DURING THE AFTERNOON ALLOWING FOR MORE INSTABILITY AND BETTER
CHANCES OF THUNDER ACROSS NORTHEAST OREGON. BUT GFS STILL HAS THE
LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF A SHORTWAVE...AND
QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY MONDAY EVENING.
OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY GOOD FOR THE LATER
PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF YEAR.
THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH MAY BE A
COUPLE DEGREES BELOW NORMAL. SO WHILE THIS IS A CONTINUED COOL AND
UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL STILL BE
RIGHT AROUND NORMAL.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS EXPECTED
TO PREVAIL OVER THE NEXT 24 HOURS...WITH ON AND OFF SHOWERS
THROUGHOUT THE TAF PERIOD. WINDS WILL PICK AT ALL TAF SITES BY 18Z
AND ARE EXPECTED TO BE 15-25KTS...GUSTING 25-35KTS. WINDS SHOULD
DIMINISH AFTER 9Z TONIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  50  20  30  30
PSC  62  36  60  34 /  20  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  20  20  40  20
LGD  52  32  49  30 /  50  20  40  20
GCD  50  27  48  29 /  50  20  30  20
DLS  60  37  57  38 /  30  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/89/97










000
FXUS66 KPDT 311637
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
937 AM PDT TUE MAR 31 2015

.SHORT TERM...MORNING UPDATE...CURRENTLY A COLD FRONT EXTENDS FROM
EXTREME EASTERN WASHINGTON INTO THE BLUE MOUNTAINS THEN SOUTH TO
SOUTH-CENTRAL OREGON. THIS FRONT WILL CONTINUE TO MOVE EAST AND
SHOULD BE THROUGH EASTERN OREGON BY NOON. WINDS HAVE BEEN JUMPING UP
JUST BEHIND THE FRONT, THEN LIGHTENING. EXPECT GRADIENTS TO CONTINUE
TIGHTENING ACROSS THE REGION LATE THIS MORNING INTO THIS AFTERNOON.
THUS WILL CONTINUE THE WIND ADVISORY FOR THE KITTITAS VALLEY. HAVE
ALSO ADDED WIND ADVISORIES FOR THE GORGE, THE SIMCOE HIGHLANDS, THE
OREGON LOWER BASIN AND THE OREGON BLUE MOUNTAIN FOOTHILLS. RAIN
SHOWERS HAVE BEEN OCCURRING WITH AND JUST BEHIND THE FRONT.
AFTERNOON HEATING COMBINED WITH COLD AIR ADVECTION ALOFT WILL RESULT
IN ISOLATED TO SCATTERED SHOWERS REDEVELOPING THIS AFTERNOON OVER
MUCH OF THE AREA. ALSO STRAY THUNDERSTORMS WILL BE POSSIBLE. SOME OF
THESE STORMS MAY PRODUCE SMALL HAIL. UPDATES THIS MORNING FOCUSED ON
WINDS FOR THE ADDED ADVISORIES, AND ADJUSTMENTS TO SHOWER COVERAGES
AND LOCATIONS OF POSSIBLE THUNDERSTORMS. 90

.LONG TERM...PREVIOUS DISCUSSION...WEAK RIDGING EXPECTED THURSDAY
NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION EXPECTED.
STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE TO THE
WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE SHOWERS
COULD STILL DEVELOP. FLOW WILL SHIFT WESTERLY FRIDAY EVENING WITH AN
INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES DOWN FROM THE GULF
OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW WITH INCREASED
MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY. HOWEVER...THE
TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE POTENTIAL FOR
THUNDER ON SUNDAY AFTERNOON. ECMWF STILL HAS THE LOW JUST OFF THE
COAST DURING THE AFTERNOON ALLOWING FOR MORE INSTABILITY AND BETTER
CHANCES OF THUNDER ACROSS NORTHEAST OREGON. BUT GFS STILL HAS THE
LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF A SHORTWAVE...AND
QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY MONDAY EVENING.
OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY GOOD FOR THE LATER
PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF YEAR.
THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH MAY BE A
COUPLE DEGREES BELOW NORMAL. SO WHILE THIS IS A CONTINUED COOL AND
UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL STILL BE
RIGHT AROUND NORMAL.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS EXPECTED
TO PREVAIL OVER THE NEXT 24 HOURS...WITH ON AND OFF SHOWERS
THROUGHOUT THE TAF PERIOD. WINDS WILL PICK AT ALL TAF SITES BY 18Z
AND ARE EXPECTED TO BE 15-25KTS...GUSTING 25-35KTS. WINDS SHOULD
DIMINISH AFTER 9Z TONIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  50  20  30  30
PSC  62  36  60  34 /  20  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  20  20  40  20
LGD  52  32  49  30 /  50  20  40  20
GCD  50  27  48  29 /  50  20  30  20
DLS  60  37  57  38 /  30  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/89/97









000
FXUS66 KPDT 311637
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
937 AM PDT TUE MAR 31 2015

.SHORT TERM...MORNING UPDATE...CURRENTLY A COLD FRONT EXTENDS FROM
EXTREME EASTERN WASHINGTON INTO THE BLUE MOUNTAINS THEN SOUTH TO
SOUTH-CENTRAL OREGON. THIS FRONT WILL CONTINUE TO MOVE EAST AND
SHOULD BE THROUGH EASTERN OREGON BY NOON. WINDS HAVE BEEN JUMPING UP
JUST BEHIND THE FRONT, THEN LIGHTENING. EXPECT GRADIENTS TO CONTINUE
TIGHTENING ACROSS THE REGION LATE THIS MORNING INTO THIS AFTERNOON.
THUS WILL CONTINUE THE WIND ADVISORY FOR THE KITTITAS VALLEY. HAVE
ALSO ADDED WIND ADVISORIES FOR THE GORGE, THE SIMCOE HIGHLANDS, THE
OREGON LOWER BASIN AND THE OREGON BLUE MOUNTAIN FOOTHILLS. RAIN
SHOWERS HAVE BEEN OCCURRING WITH AND JUST BEHIND THE FRONT.
AFTERNOON HEATING COMBINED WITH COLD AIR ADVECTION ALOFT WILL RESULT
IN ISOLATED TO SCATTERED SHOWERS REDEVELOPING THIS AFTERNOON OVER
MUCH OF THE AREA. ALSO STRAY THUNDERSTORMS WILL BE POSSIBLE. SOME OF
THESE STORMS MAY PRODUCE SMALL HAIL. UPDATES THIS MORNING FOCUSED ON
WINDS FOR THE ADDED ADVISORIES, AND ADJUSTMENTS TO SHOWER COVERAGES
AND LOCATIONS OF POSSIBLE THUNDERSTORMS. 90

.LONG TERM...PREVIOUS DISCUSSION...WEAK RIDGING EXPECTED THURSDAY
NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION EXPECTED.
STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE TO THE
WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE SHOWERS
COULD STILL DEVELOP. FLOW WILL SHIFT WESTERLY FRIDAY EVENING WITH AN
INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES DOWN FROM THE GULF
OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW WITH INCREASED
MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY. HOWEVER...THE
TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE POTENTIAL FOR
THUNDER ON SUNDAY AFTERNOON. ECMWF STILL HAS THE LOW JUST OFF THE
COAST DURING THE AFTERNOON ALLOWING FOR MORE INSTABILITY AND BETTER
CHANCES OF THUNDER ACROSS NORTHEAST OREGON. BUT GFS STILL HAS THE
LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF A SHORTWAVE...AND
QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY MONDAY EVENING.
OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY GOOD FOR THE LATER
PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF YEAR.
THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH MAY BE A
COUPLE DEGREES BELOW NORMAL. SO WHILE THIS IS A CONTINUED COOL AND
UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL STILL BE
RIGHT AROUND NORMAL.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS EXPECTED
TO PREVAIL OVER THE NEXT 24 HOURS...WITH ON AND OFF SHOWERS
THROUGHOUT THE TAF PERIOD. WINDS WILL PICK AT ALL TAF SITES BY 18Z
AND ARE EXPECTED TO BE 15-25KTS...GUSTING 25-35KTS. WINDS SHOULD
DIMINISH AFTER 9Z TONIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  50  20  30  30
PSC  62  36  60  34 /  20  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  20  20  40  20
LGD  52  32  49  30 /  50  20  40  20
GCD  50  27  48  29 /  50  20  30  20
DLS  60  37  57  38 /  30  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/89/97










000
FXUS66 KPDT 311637
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
937 AM PDT TUE MAR 31 2015

.SHORT TERM...MORNING UPDATE...CURRENTLY A COLD FRONT EXTENDS FROM
EXTREME EASTERN WASHINGTON INTO THE BLUE MOUNTAINS THEN SOUTH TO
SOUTH-CENTRAL OREGON. THIS FRONT WILL CONTINUE TO MOVE EAST AND
SHOULD BE THROUGH EASTERN OREGON BY NOON. WINDS HAVE BEEN JUMPING UP
JUST BEHIND THE FRONT, THEN LIGHTENING. EXPECT GRADIENTS TO CONTINUE
TIGHTENING ACROSS THE REGION LATE THIS MORNING INTO THIS AFTERNOON.
THUS WILL CONTINUE THE WIND ADVISORY FOR THE KITTITAS VALLEY. HAVE
ALSO ADDED WIND ADVISORIES FOR THE GORGE, THE SIMCOE HIGHLANDS, THE
OREGON LOWER BASIN AND THE OREGON BLUE MOUNTAIN FOOTHILLS. RAIN
SHOWERS HAVE BEEN OCCURRING WITH AND JUST BEHIND THE FRONT.
AFTERNOON HEATING COMBINED WITH COLD AIR ADVECTION ALOFT WILL RESULT
IN ISOLATED TO SCATTERED SHOWERS REDEVELOPING THIS AFTERNOON OVER
MUCH OF THE AREA. ALSO STRAY THUNDERSTORMS WILL BE POSSIBLE. SOME OF
THESE STORMS MAY PRODUCE SMALL HAIL. UPDATES THIS MORNING FOCUSED ON
WINDS FOR THE ADDED ADVISORIES, AND ADJUSTMENTS TO SHOWER COVERAGES
AND LOCATIONS OF POSSIBLE THUNDERSTORMS. 90

.LONG TERM...PREVIOUS DISCUSSION...WEAK RIDGING EXPECTED THURSDAY
NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION EXPECTED.
STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE TO THE
WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE SHOWERS
COULD STILL DEVELOP. FLOW WILL SHIFT WESTERLY FRIDAY EVENING WITH AN
INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES DOWN FROM THE GULF
OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW WITH INCREASED
MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY. HOWEVER...THE
TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE POTENTIAL FOR
THUNDER ON SUNDAY AFTERNOON. ECMWF STILL HAS THE LOW JUST OFF THE
COAST DURING THE AFTERNOON ALLOWING FOR MORE INSTABILITY AND BETTER
CHANCES OF THUNDER ACROSS NORTHEAST OREGON. BUT GFS STILL HAS THE
LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF A SHORTWAVE...AND
QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY MONDAY EVENING.
OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY GOOD FOR THE LATER
PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF YEAR.
THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH MAY BE A
COUPLE DEGREES BELOW NORMAL. SO WHILE THIS IS A CONTINUED COOL AND
UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL STILL BE
RIGHT AROUND NORMAL.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS EXPECTED
TO PREVAIL OVER THE NEXT 24 HOURS...WITH ON AND OFF SHOWERS
THROUGHOUT THE TAF PERIOD. WINDS WILL PICK AT ALL TAF SITES BY 18Z
AND ARE EXPECTED TO BE 15-25KTS...GUSTING 25-35KTS. WINDS SHOULD
DIMINISH AFTER 9Z TONIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  50  20  30  30
PSC  62  36  60  34 /  20  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  20  20  40  20
LGD  52  32  49  30 /  50  20  40  20
GCD  50  27  48  29 /  50  20  30  20
DLS  60  37  57  38 /  30  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING ORZ041-044-507-508-510.

WA...WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ024-521.

     WIND ADVISORY UNTIL 9 PM PDT THIS EVENING WAZ026.

&&

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

$$

90/89/97









000
FXUS66 KPDT 311115 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
415 AM PDT TUE MAR 31 2015

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH THURSDAY...AN UPPER TROUGH WITH A COLD
FRONT IS CURRENTLY MOVING INTO THE REGION THIS MORNING WITH
INCREASING MOISTURE AND WINDS FROM THE WEST. THE LEADING EDGE OF THE
PRECIPITATION HAS MOVED EASTWARD TO THE CASCADE CREST AND WILL SOON
SPREAD EAST OF THE CASCADES AND ACROSS THE CWA. THE MAIN CONCERNS
WITH THIS WEATHER SYSTEM WILL BE INCREASING WINDS WITH AND BEHIND
THE COLD FRONT TODAY AS WELL AS FALLING SNOW LEVELS. NORTHWEST WINDS
WILL INCREASE ENOUGH IN THE KITTITAS VALLEY TO WARRANT A WIND
ADVISORY TODAY. AS SUCH A WIND ADVISORY IS IN EFFECT FOR THE
KITTITAS VALLEY TODAY FROM 11 AM UNTIL 9 PM THIS EVENING WHERE WINDS
OF 25 TO 35 MPH WITH GUSTS TO 50 MPH WILL BE POSSIBLE. SNOW LEVELS
WILL LOWER TO AROUND 2500-3000 FEET BY WEDNESDAY MORNING AND WILL
THEN REMAIN FAIRLY STEADY AFTER THAT. WINDS TONIGHT WILL TEND TO
KEEP THE ATMOSPHERE MIXED AND THEREFORE WARMER TEMPERATURES. THE
WINDS WILL DIMINISH TO MOSTLY LIGHT AND VARIABLE WEDNESDAY NIGHT AND
EARLY THURSDAY MORNING. THUS WEDNESDAY NIGHT WILL BECOME THE COLDEST
NIGHT DURING THE NEXT COUPLE OF DAYS. UPSLOPE SNOW SHOWERS ARE
LIKELY IN THE MOUNTAINS WHERE THERE COULD BE A COUPLE INCHES OF
SNOW...BUT SNOW AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY
AMOUNTS. A COOL AND UNSETTLED NORTHWEST FLOW PATTERN WITH WEAK
SHORTWAVES IN THE FLOW WILL PERSIST THROUGH THURSDAY WITH CONTINUED
UPSLOPE SNOW SHOWERS IN THE MOUNTAINS...ESPECIALLY THE NORTHERN
BLUES THROUGH THE SHORT TERM PERIOD. MAXIMUM TEMPERATURE READINGS
WILL COOL OFF SIGNIFICANTLY TODAY FROM MONDAY WITH HIGHS TODAY...
WEDNESDAY AND THURSDAY BEING ONLY BE IN THE 50S IN THE LOWER
ELEVATIONS AND 40S IN THE MOUNTAINS. 88

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...WEAK RIDGING EXPECTED
THURSDAY NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION
EXPECTED.  STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE
TO THE WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE
SHOWERS COULD STILL DEVELOP.  FLOW WILL SHIFT WESTERLY FRIDAY
EVENING WITH AN INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES
DOWN FROM THE GULF OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW
WITH INCREASED MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY.
HOWEVER...THE TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE
POTENTIAL FOR THUNDER ON SUNDAY AFTERNOON.  ECMWF STILL HAS THE LOW
JUST OFF THE COAST DURING THE AFTERNOON ALLOWING FOR MORE
INSTABILITY AND BETTER CHANCES OF THUNDER ACROSS NORTHEAST OREGON.
BUT GFS STILL HAS THE LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF
A SHORTWAVE...AND QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY
MONDAY EVENING.  OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY
GOOD FOR THE LATER PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF
YEAR.  THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH
MAY BE A COUPLE DEGREES BELOW NORMAL.  SO WHILE THIS IS A CONTINUED
COOL AND UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL
STILL BE RIGHT AROUND NORMAL. WEBER

&&

.AVIATION...12Z TAFS...VFR CONDITIONS EXPECTED TO PREVAIL OVER THE
NEXT 24 HOURS...WITH ON AND OFF SHOWERS THROUGHOUT THE TAF PERIOD.
WINDS WILL PICK AT ALL TAF SITES BY 18Z AND ARE EXPECTED TO BE
15-25KTS...GUSTING 25-35KTS. WINDS SHOULD DIMINISH AFTER 9Z TONIGHT.
WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  40  20  30  30
PSC  62  36  60  34 /  30  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  40  20  40  20
LGD  52  32  49  30 /  60  20  40  20
GCD  49  27  48  29 /  50  20  30  20
DLS  59  37  57  38 /  40  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM THIS MORNING TO 9 PM PDT THIS EVENING
     WAZ026.

&&

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

$$

88/89/89








000
FXUS66 KPDT 311115 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
415 AM PDT TUE MAR 31 2015

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH THURSDAY...AN UPPER TROUGH WITH A COLD
FRONT IS CURRENTLY MOVING INTO THE REGION THIS MORNING WITH
INCREASING MOISTURE AND WINDS FROM THE WEST. THE LEADING EDGE OF THE
PRECIPITATION HAS MOVED EASTWARD TO THE CASCADE CREST AND WILL SOON
SPREAD EAST OF THE CASCADES AND ACROSS THE CWA. THE MAIN CONCERNS
WITH THIS WEATHER SYSTEM WILL BE INCREASING WINDS WITH AND BEHIND
THE COLD FRONT TODAY AS WELL AS FALLING SNOW LEVELS. NORTHWEST WINDS
WILL INCREASE ENOUGH IN THE KITTITAS VALLEY TO WARRANT A WIND
ADVISORY TODAY. AS SUCH A WIND ADVISORY IS IN EFFECT FOR THE
KITTITAS VALLEY TODAY FROM 11 AM UNTIL 9 PM THIS EVENING WHERE WINDS
OF 25 TO 35 MPH WITH GUSTS TO 50 MPH WILL BE POSSIBLE. SNOW LEVELS
WILL LOWER TO AROUND 2500-3000 FEET BY WEDNESDAY MORNING AND WILL
THEN REMAIN FAIRLY STEADY AFTER THAT. WINDS TONIGHT WILL TEND TO
KEEP THE ATMOSPHERE MIXED AND THEREFORE WARMER TEMPERATURES. THE
WINDS WILL DIMINISH TO MOSTLY LIGHT AND VARIABLE WEDNESDAY NIGHT AND
EARLY THURSDAY MORNING. THUS WEDNESDAY NIGHT WILL BECOME THE COLDEST
NIGHT DURING THE NEXT COUPLE OF DAYS. UPSLOPE SNOW SHOWERS ARE
LIKELY IN THE MOUNTAINS WHERE THERE COULD BE A COUPLE INCHES OF
SNOW...BUT SNOW AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY
AMOUNTS. A COOL AND UNSETTLED NORTHWEST FLOW PATTERN WITH WEAK
SHORTWAVES IN THE FLOW WILL PERSIST THROUGH THURSDAY WITH CONTINUED
UPSLOPE SNOW SHOWERS IN THE MOUNTAINS...ESPECIALLY THE NORTHERN
BLUES THROUGH THE SHORT TERM PERIOD. MAXIMUM TEMPERATURE READINGS
WILL COOL OFF SIGNIFICANTLY TODAY FROM MONDAY WITH HIGHS TODAY...
WEDNESDAY AND THURSDAY BEING ONLY BE IN THE 50S IN THE LOWER
ELEVATIONS AND 40S IN THE MOUNTAINS. 88

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...WEAK RIDGING EXPECTED
THURSDAY NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION
EXPECTED.  STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE
TO THE WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE
SHOWERS COULD STILL DEVELOP.  FLOW WILL SHIFT WESTERLY FRIDAY
EVENING WITH AN INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES
DOWN FROM THE GULF OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW
WITH INCREASED MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY.
HOWEVER...THE TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE
POTENTIAL FOR THUNDER ON SUNDAY AFTERNOON.  ECMWF STILL HAS THE LOW
JUST OFF THE COAST DURING THE AFTERNOON ALLOWING FOR MORE
INSTABILITY AND BETTER CHANCES OF THUNDER ACROSS NORTHEAST OREGON.
BUT GFS STILL HAS THE LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF
A SHORTWAVE...AND QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY
MONDAY EVENING.  OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY
GOOD FOR THE LATER PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF
YEAR.  THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH
MAY BE A COUPLE DEGREES BELOW NORMAL.  SO WHILE THIS IS A CONTINUED
COOL AND UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL
STILL BE RIGHT AROUND NORMAL. WEBER

&&

.AVIATION...12Z TAFS...VFR CONDITIONS EXPECTED TO PREVAIL OVER THE
NEXT 24 HOURS...WITH ON AND OFF SHOWERS THROUGHOUT THE TAF PERIOD.
WINDS WILL PICK AT ALL TAF SITES BY 18Z AND ARE EXPECTED TO BE
15-25KTS...GUSTING 25-35KTS. WINDS SHOULD DIMINISH AFTER 9Z TONIGHT.
WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  40  20  30  30
PSC  62  36  60  34 /  30  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  40  20  40  20
LGD  52  32  49  30 /  60  20  40  20
GCD  49  27  48  29 /  50  20  30  20
DLS  59  37  57  38 /  40  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM THIS MORNING TO 9 PM PDT THIS EVENING
     WAZ026.

&&

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

$$

88/89/89







000
FXUS66 KPDT 311115 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
415 AM PDT TUE MAR 31 2015

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH THURSDAY...AN UPPER TROUGH WITH A COLD
FRONT IS CURRENTLY MOVING INTO THE REGION THIS MORNING WITH
INCREASING MOISTURE AND WINDS FROM THE WEST. THE LEADING EDGE OF THE
PRECIPITATION HAS MOVED EASTWARD TO THE CASCADE CREST AND WILL SOON
SPREAD EAST OF THE CASCADES AND ACROSS THE CWA. THE MAIN CONCERNS
WITH THIS WEATHER SYSTEM WILL BE INCREASING WINDS WITH AND BEHIND
THE COLD FRONT TODAY AS WELL AS FALLING SNOW LEVELS. NORTHWEST WINDS
WILL INCREASE ENOUGH IN THE KITTITAS VALLEY TO WARRANT A WIND
ADVISORY TODAY. AS SUCH A WIND ADVISORY IS IN EFFECT FOR THE
KITTITAS VALLEY TODAY FROM 11 AM UNTIL 9 PM THIS EVENING WHERE WINDS
OF 25 TO 35 MPH WITH GUSTS TO 50 MPH WILL BE POSSIBLE. SNOW LEVELS
WILL LOWER TO AROUND 2500-3000 FEET BY WEDNESDAY MORNING AND WILL
THEN REMAIN FAIRLY STEADY AFTER THAT. WINDS TONIGHT WILL TEND TO
KEEP THE ATMOSPHERE MIXED AND THEREFORE WARMER TEMPERATURES. THE
WINDS WILL DIMINISH TO MOSTLY LIGHT AND VARIABLE WEDNESDAY NIGHT AND
EARLY THURSDAY MORNING. THUS WEDNESDAY NIGHT WILL BECOME THE COLDEST
NIGHT DURING THE NEXT COUPLE OF DAYS. UPSLOPE SNOW SHOWERS ARE
LIKELY IN THE MOUNTAINS WHERE THERE COULD BE A COUPLE INCHES OF
SNOW...BUT SNOW AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY
AMOUNTS. A COOL AND UNSETTLED NORTHWEST FLOW PATTERN WITH WEAK
SHORTWAVES IN THE FLOW WILL PERSIST THROUGH THURSDAY WITH CONTINUED
UPSLOPE SNOW SHOWERS IN THE MOUNTAINS...ESPECIALLY THE NORTHERN
BLUES THROUGH THE SHORT TERM PERIOD. MAXIMUM TEMPERATURE READINGS
WILL COOL OFF SIGNIFICANTLY TODAY FROM MONDAY WITH HIGHS TODAY...
WEDNESDAY AND THURSDAY BEING ONLY BE IN THE 50S IN THE LOWER
ELEVATIONS AND 40S IN THE MOUNTAINS. 88

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...WEAK RIDGING EXPECTED
THURSDAY NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION
EXPECTED.  STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE
TO THE WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE
SHOWERS COULD STILL DEVELOP.  FLOW WILL SHIFT WESTERLY FRIDAY
EVENING WITH AN INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES
DOWN FROM THE GULF OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW
WITH INCREASED MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY.
HOWEVER...THE TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE
POTENTIAL FOR THUNDER ON SUNDAY AFTERNOON.  ECMWF STILL HAS THE LOW
JUST OFF THE COAST DURING THE AFTERNOON ALLOWING FOR MORE
INSTABILITY AND BETTER CHANCES OF THUNDER ACROSS NORTHEAST OREGON.
BUT GFS STILL HAS THE LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF
A SHORTWAVE...AND QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY
MONDAY EVENING.  OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY
GOOD FOR THE LATER PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF
YEAR.  THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH
MAY BE A COUPLE DEGREES BELOW NORMAL.  SO WHILE THIS IS A CONTINUED
COOL AND UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL
STILL BE RIGHT AROUND NORMAL. WEBER

&&

.AVIATION...12Z TAFS...VFR CONDITIONS EXPECTED TO PREVAIL OVER THE
NEXT 24 HOURS...WITH ON AND OFF SHOWERS THROUGHOUT THE TAF PERIOD.
WINDS WILL PICK AT ALL TAF SITES BY 18Z AND ARE EXPECTED TO BE
15-25KTS...GUSTING 25-35KTS. WINDS SHOULD DIMINISH AFTER 9Z TONIGHT.
WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  40  20  30  30
PSC  62  36  60  34 /  30  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  40  20  40  20
LGD  52  32  49  30 /  60  20  40  20
GCD  49  27  48  29 /  50  20  30  20
DLS  59  37  57  38 /  40  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM THIS MORNING TO 9 PM PDT THIS EVENING
     WAZ026.

&&

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

$$

88/89/89








000
FXUS66 KPDT 311115 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
415 AM PDT TUE MAR 31 2015

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH THURSDAY...AN UPPER TROUGH WITH A COLD
FRONT IS CURRENTLY MOVING INTO THE REGION THIS MORNING WITH
INCREASING MOISTURE AND WINDS FROM THE WEST. THE LEADING EDGE OF THE
PRECIPITATION HAS MOVED EASTWARD TO THE CASCADE CREST AND WILL SOON
SPREAD EAST OF THE CASCADES AND ACROSS THE CWA. THE MAIN CONCERNS
WITH THIS WEATHER SYSTEM WILL BE INCREASING WINDS WITH AND BEHIND
THE COLD FRONT TODAY AS WELL AS FALLING SNOW LEVELS. NORTHWEST WINDS
WILL INCREASE ENOUGH IN THE KITTITAS VALLEY TO WARRANT A WIND
ADVISORY TODAY. AS SUCH A WIND ADVISORY IS IN EFFECT FOR THE
KITTITAS VALLEY TODAY FROM 11 AM UNTIL 9 PM THIS EVENING WHERE WINDS
OF 25 TO 35 MPH WITH GUSTS TO 50 MPH WILL BE POSSIBLE. SNOW LEVELS
WILL LOWER TO AROUND 2500-3000 FEET BY WEDNESDAY MORNING AND WILL
THEN REMAIN FAIRLY STEADY AFTER THAT. WINDS TONIGHT WILL TEND TO
KEEP THE ATMOSPHERE MIXED AND THEREFORE WARMER TEMPERATURES. THE
WINDS WILL DIMINISH TO MOSTLY LIGHT AND VARIABLE WEDNESDAY NIGHT AND
EARLY THURSDAY MORNING. THUS WEDNESDAY NIGHT WILL BECOME THE COLDEST
NIGHT DURING THE NEXT COUPLE OF DAYS. UPSLOPE SNOW SHOWERS ARE
LIKELY IN THE MOUNTAINS WHERE THERE COULD BE A COUPLE INCHES OF
SNOW...BUT SNOW AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY
AMOUNTS. A COOL AND UNSETTLED NORTHWEST FLOW PATTERN WITH WEAK
SHORTWAVES IN THE FLOW WILL PERSIST THROUGH THURSDAY WITH CONTINUED
UPSLOPE SNOW SHOWERS IN THE MOUNTAINS...ESPECIALLY THE NORTHERN
BLUES THROUGH THE SHORT TERM PERIOD. MAXIMUM TEMPERATURE READINGS
WILL COOL OFF SIGNIFICANTLY TODAY FROM MONDAY WITH HIGHS TODAY...
WEDNESDAY AND THURSDAY BEING ONLY BE IN THE 50S IN THE LOWER
ELEVATIONS AND 40S IN THE MOUNTAINS. 88

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...WEAK RIDGING EXPECTED
THURSDAY NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION
EXPECTED.  STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE
TO THE WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE
SHOWERS COULD STILL DEVELOP.  FLOW WILL SHIFT WESTERLY FRIDAY
EVENING WITH AN INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES
DOWN FROM THE GULF OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW
WITH INCREASED MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY.
HOWEVER...THE TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE
POTENTIAL FOR THUNDER ON SUNDAY AFTERNOON.  ECMWF STILL HAS THE LOW
JUST OFF THE COAST DURING THE AFTERNOON ALLOWING FOR MORE
INSTABILITY AND BETTER CHANCES OF THUNDER ACROSS NORTHEAST OREGON.
BUT GFS STILL HAS THE LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF
A SHORTWAVE...AND QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY
MONDAY EVENING.  OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY
GOOD FOR THE LATER PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF
YEAR.  THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH
MAY BE A COUPLE DEGREES BELOW NORMAL.  SO WHILE THIS IS A CONTINUED
COOL AND UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL
STILL BE RIGHT AROUND NORMAL. WEBER

&&

.AVIATION...12Z TAFS...VFR CONDITIONS EXPECTED TO PREVAIL OVER THE
NEXT 24 HOURS...WITH ON AND OFF SHOWERS THROUGHOUT THE TAF PERIOD.
WINDS WILL PICK AT ALL TAF SITES BY 18Z AND ARE EXPECTED TO BE
15-25KTS...GUSTING 25-35KTS. WINDS SHOULD DIMINISH AFTER 9Z TONIGHT.
WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  40  20  30  30
PSC  62  36  60  34 /  30  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  40  20  40  20
LGD  52  32  49  30 /  60  20  40  20
GCD  49  27  48  29 /  50  20  30  20
DLS  59  37  57  38 /  40  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM THIS MORNING TO 9 PM PDT THIS EVENING
     WAZ026.

&&

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

$$

88/89/89







000
FXUS66 KPDT 310930
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
230 AM PDT TUE MAR 31 2015

.SHORT TERM...TODAY THROUGH THURSDAY...AN UPPER TROUGH WITH A COLD
FRONT IS CURRENTLY MOVING INTO THE REGION THIS MORNING WITH
INCREASING MOISTURE AND WINDS FROM THE WEST. THE LEADING EDGE OF THE
PRECIPITATION HAS MOVED EASTWARD TO THE CASCADE CREST AND WILL SOON
SPREAD EAST OF THE CASCADES AND ACROSS THE CWA. THE MAIN CONCERNS
WITH THIS WEATHER SYSTEM WILL BE INCREASING WINDS WITH AND BEHIND
THE COLD FRONT TODAY AS WELL AS FALLING SNOW LEVELS. NORTHWEST WINDS
WILL INCREASE ENOUGH IN THE KITTITAS VALLEY TO WARRANT A WIND
ADVISORY TODAY. AS SUCH A WIND ADVISORY IS IN EFFECT FOR THE
KITTITAS VALLEY TODAY FROM 11 AM UNTIL 9 PM THIS EVENING WHERE WINDS
OF 25 TO 35 MPH WITH GUSTS TO 50 MPH WILL BE POSSIBLE. SNOW LEVELS
WILL LOWER TO AROUND 2500-3000 FEET BY WEDNESDAY MORNING AND WILL
THEN REMAIN FAIRLY STEADY AFTER THAT. WINDS TONIGHT WILL TEND TO
KEEP THE ATMOSPHERE MIXED AND THEREFORE WARMER TEMPERATURES. THE
WINDS WILL DIMINISH TO MOSTLY LIGHT AND VARIABLE WEDNESDAY NIGHT AND
EARLY THURSDAY MORNING. THUS WEDNESDAY NIGHT WILL BECOME THE COLDEST
NIGHT DURING THE NEXT COUPLE OF DAYS. UPSLOPE SNOW SHOWERS ARE
LIKELY IN THE MOUNTAINS WHERE THERE COULD BE A COUPLE INCHES OF
SNOW...BUT SNOW AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY
AMOUNTS. A COOL AND UNSETTLED NORTHWEST FLOW PATTERN WITH WEAK
SHORTWAVES IN THE FLOW WILL PERSIST THROUGH THURSDAY WITH CONTINUED
UPSLOPE SNOW SHOWERS IN THE MOUNTAINS...ESPECIALLY THE NORTHERN
BLUES THROUGH THE SHORT TERM PERIOD. MAXIMUM TEMPERATURE READINGS
WILL COOL OFF SIGNIFICANTLY TODAY FROM MONDAY WITH HIGHS TODAY...
WEDNESDAY AND THURSDAY BEING ONLY BE IN THE 50S IN THE LOWER
ELEVATIONS AND 40S IN THE MOUNTAINS. 88

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...WEAK RIDGING EXPECTED
THURSDAY NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION
EXPECTED.  STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE
TO THE WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE
SHOWERS COULD STILL DEVELOP.  FLOW WILL SHIFT WESTERLY FRIDAY
EVENING WITH AN INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES
DOWN FROM THE GULF OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW
WITH INCREASED MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY.
HOWEVER...THE TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE
POTENTIAL FOR THUNDER ON SUNDAY AFTERNOON.  ECMWF STILL HAS THE LOW
JUST OFF THE COAST DURING THE AFTERNOON ALLOWING FOR MORE
INSTABILITY AND BETTER CHANCES OF THUNDER ACROSS NORTHEAST OREGON.
BUT GFS STILL HAS THE LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF
A SHORTWAVE...AND QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY
MONDAY EVENING.  OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY
GOOD FOR THE LATER PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF
YEAR.  THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH
MAY BE A COUPLE DEGREES BELOW NORMAL.  SO WHILE THIS IS A CONTINUED
COOL AND UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL
STILL BE RIGHT AROUND NORMAL. WEBER

&&

.AVIATION...PREVIOUS DISCUSSION...06Z TAFS...SOME CLOUDS AND
POSSIBLY A SHOWER COULD OCCUR CREATING MVFR CONDITIONS AT TAF SITES
KPDT AND KALW BETWEEN 08Z TO 12Z.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  40  20  30  30
PSC  62  36  60  34 /  30  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  40  20  40  20
LGD  52  32  49  30 /  60  20  40  20
GCD  49  27  48  29 /  50  20  30  20
DLS  59  37  57  38 /  40  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM THIS MORNING TO 9 PM PDT THIS EVENING
     WAZ026.

&&

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

$$

88/89/89






000
FXUS66 KPDT 310930
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
230 AM PDT TUE MAR 31 2015

.SHORT TERM...TODAY THROUGH THURSDAY...AN UPPER TROUGH WITH A COLD
FRONT IS CURRENTLY MOVING INTO THE REGION THIS MORNING WITH
INCREASING MOISTURE AND WINDS FROM THE WEST. THE LEADING EDGE OF THE
PRECIPITATION HAS MOVED EASTWARD TO THE CASCADE CREST AND WILL SOON
SPREAD EAST OF THE CASCADES AND ACROSS THE CWA. THE MAIN CONCERNS
WITH THIS WEATHER SYSTEM WILL BE INCREASING WINDS WITH AND BEHIND
THE COLD FRONT TODAY AS WELL AS FALLING SNOW LEVELS. NORTHWEST WINDS
WILL INCREASE ENOUGH IN THE KITTITAS VALLEY TO WARRANT A WIND
ADVISORY TODAY. AS SUCH A WIND ADVISORY IS IN EFFECT FOR THE
KITTITAS VALLEY TODAY FROM 11 AM UNTIL 9 PM THIS EVENING WHERE WINDS
OF 25 TO 35 MPH WITH GUSTS TO 50 MPH WILL BE POSSIBLE. SNOW LEVELS
WILL LOWER TO AROUND 2500-3000 FEET BY WEDNESDAY MORNING AND WILL
THEN REMAIN FAIRLY STEADY AFTER THAT. WINDS TONIGHT WILL TEND TO
KEEP THE ATMOSPHERE MIXED AND THEREFORE WARMER TEMPERATURES. THE
WINDS WILL DIMINISH TO MOSTLY LIGHT AND VARIABLE WEDNESDAY NIGHT AND
EARLY THURSDAY MORNING. THUS WEDNESDAY NIGHT WILL BECOME THE COLDEST
NIGHT DURING THE NEXT COUPLE OF DAYS. UPSLOPE SNOW SHOWERS ARE
LIKELY IN THE MOUNTAINS WHERE THERE COULD BE A COUPLE INCHES OF
SNOW...BUT SNOW AMOUNTS ARE EXPECTED TO REMAIN BELOW ADVISORY
AMOUNTS. A COOL AND UNSETTLED NORTHWEST FLOW PATTERN WITH WEAK
SHORTWAVES IN THE FLOW WILL PERSIST THROUGH THURSDAY WITH CONTINUED
UPSLOPE SNOW SHOWERS IN THE MOUNTAINS...ESPECIALLY THE NORTHERN
BLUES THROUGH THE SHORT TERM PERIOD. MAXIMUM TEMPERATURE READINGS
WILL COOL OFF SIGNIFICANTLY TODAY FROM MONDAY WITH HIGHS TODAY...
WEDNESDAY AND THURSDAY BEING ONLY BE IN THE 50S IN THE LOWER
ELEVATIONS AND 40S IN THE MOUNTAINS. 88

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...WEAK RIDGING EXPECTED
THURSDAY NIGHT INTO MIDDAY FRIDAY...WITH LITTLE TO NO PRECIPITATION
EXPECTED.  STILL HAVE A SLIGHT CHANCE OF POPS OVER THE MOUNTAINS DUE
TO THE WEAKNESS OF THE RIDGE...AND THE POSSIBILITY THAT UPSLOPE
SHOWERS COULD STILL DEVELOP.  FLOW WILL SHIFT WESTERLY FRIDAY
EVENING WITH AN INCREASE IN POPS...AS A LOW PRESSURE SYSTEM MOVES
DOWN FROM THE GULF OF ALASKA. AS THE LOW DEEPENS...SOUTHWEST FLOW
WITH INCREASED MOISTURE CAN BE EXPECTED SATURDAY NIGHT INTO SUNDAY.
HOWEVER...THE TRACK OF THIS LOW COULD HAVE IMPLICATIONS ON THE
POTENTIAL FOR THUNDER ON SUNDAY AFTERNOON.  ECMWF STILL HAS THE LOW
JUST OFF THE COAST DURING THE AFTERNOON ALLOWING FOR MORE
INSTABILITY AND BETTER CHANCES OF THUNDER ACROSS NORTHEAST OREGON.
BUT GFS STILL HAS THE LOW CENTERED OVER BRITISH COLUMBIA AS MORE OF
A SHORTWAVE...AND QUICKLY PROGRESSING SOUTHEAST OUT OF THE AREA BY
MONDAY EVENING.  OVERALL THE CHANCE FOR PRECIPITATION LOOKS PRETTY
GOOD FOR THE LATER PART OF THE WEEKEND AND INTO EARLY NEXT WEEK.

ALTHOUGH IT WILL STILL SEEM OR EVEN FEEL LIKE WE ARE COOLER THAN
NORMAL...THE FORECAST FOR HIGHS TO BE IN THE UPPER 50S TO LOWER
60S...ACROSS THE LOWER ELEVATIONS...IS NORMAL FOR THIS TIME OF
YEAR.  THE LOWS ARE EXPECTED TO BE IN THE LOWER TO MID 30S...WHICH
MAY BE A COUPLE DEGREES BELOW NORMAL.  SO WHILE THIS IS A CONTINUED
COOL AND UNSETTLED TREND FROM WHAT WE HAVE BEEN SEEING...WE WILL
STILL BE RIGHT AROUND NORMAL. WEBER

&&

.AVIATION...PREVIOUS DISCUSSION...06Z TAFS...SOME CLOUDS AND
POSSIBLY A SHOWER COULD OCCUR CREATING MVFR CONDITIONS AT TAF SITES
KPDT AND KALW BETWEEN 08Z TO 12Z.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  33  53  35 /  50  20  30  30
ALW  57  38  55  39 /  40  20  30  30
PSC  62  36  60  34 /  30  10  30  20
YKM  59  32  57  33 /  20  10  30  20
HRI  61  35  58  34 /  30  10  30  20
ELN  55  31  53  34 /  20  10  30  20
RDM  50  22  48  24 /  40  20  40  20
LGD  52  32  49  30 /  60  20  40  20
GCD  49  27  48  29 /  50  20  30  20
DLS  59  37  57  38 /  40  20  40  20

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM THIS MORNING TO 9 PM PDT THIS EVENING
     WAZ026.

&&

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

$$

88/89/89







000
FXUS66 KPDT 310556 AAB
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1050 PM PDT MON MAR 30 2015

UPDATED THE AVIATION DISCUSSION

.UPDATE...A COLD FRONT WAS APPROACHING THE PACNW COAST AND IS
FORECAST TO MOVE ACROSS THE AREA TOMORROW MORNING. PRIOR TO THIS THE
MODELS WERE HINTING AT A DISTURBANCE AHEAD OF THE FRONT THAT MAY
DRIFT ACROSS THE REGION OVERNIGHT WHICH COULD PRODUCE AN ISOLD
SHOWER MAINLY OVER OUR EASTERN ZONES SUCH AS THE BLUE/WALLOWA MTNS
LOCATIONS. OTHERWISE CLOUDS WILL BE ON THE INCREASE TOWARD MORNING
AND THE FORECAST LOW TEMPS APPEAR ON TRACK FOR NOW.

.AVIATION...SOME CLOUDS AND POSSIBLY A SHOWER COULD OCCUR CREATING
MVFR CONDITIONS AT TAF SITES KPDT AND KALW BETWEEN 08Z TO 12Z.

OTHERWISE MOSTLY VFR CONDITIONS ARE EXPECTED UNTIL A COLD FRONT
APPROACHES THE REGION TOMORROW MORNING WITH AREAS OF WIND GUSTS TO
35 KTS EXPECTED ACROSS ALL TAFS. IN ADDITION AREAS OF MVFR CEILINGS
ARE LIKELY AFTER 12Z IN AND NEAR SHOWERS STARTING AT TAF SITE
KDLS...KYKM...AND KRDM AND THEN THESE CONDITIONS WILL EFFECT TAF
SITES KPDT...KPSC...KALW AFTER 15Z AND CONTINUE INTO THE EVENING.

&&

.PREV DISC... /ISSUED 429 PM PDT MON MAR 30 2015/

SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

97/97







000
FXUS66 KPDT 310556 AAB
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1050 PM PDT MON MAR 30 2015

UPDATED THE AVIATION DISCUSSION

.UPDATE...A COLD FRONT WAS APPROACHING THE PACNW COAST AND IS
FORECAST TO MOVE ACROSS THE AREA TOMORROW MORNING. PRIOR TO THIS THE
MODELS WERE HINTING AT A DISTURBANCE AHEAD OF THE FRONT THAT MAY
DRIFT ACROSS THE REGION OVERNIGHT WHICH COULD PRODUCE AN ISOLD
SHOWER MAINLY OVER OUR EASTERN ZONES SUCH AS THE BLUE/WALLOWA MTNS
LOCATIONS. OTHERWISE CLOUDS WILL BE ON THE INCREASE TOWARD MORNING
AND THE FORECAST LOW TEMPS APPEAR ON TRACK FOR NOW.

.AVIATION...SOME CLOUDS AND POSSIBLY A SHOWER COULD OCCUR CREATING
MVFR CONDITIONS AT TAF SITES KPDT AND KALW BETWEEN 08Z TO 12Z.

OTHERWISE MOSTLY VFR CONDITIONS ARE EXPECTED UNTIL A COLD FRONT
APPROACHES THE REGION TOMORROW MORNING WITH AREAS OF WIND GUSTS TO
35 KTS EXPECTED ACROSS ALL TAFS. IN ADDITION AREAS OF MVFR CEILINGS
ARE LIKELY AFTER 12Z IN AND NEAR SHOWERS STARTING AT TAF SITE
KDLS...KYKM...AND KRDM AND THEN THESE CONDITIONS WILL EFFECT TAF
SITES KPDT...KPSC...KALW AFTER 15Z AND CONTINUE INTO THE EVENING.

&&

.PREV DISC... /ISSUED 429 PM PDT MON MAR 30 2015/

SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

97/97








000
FXUS66 KPDT 310556 AAB
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1050 PM PDT MON MAR 30 2015

UPDATED THE AVIATION DISCUSSION

.UPDATE...A COLD FRONT WAS APPROACHING THE PACNW COAST AND IS
FORECAST TO MOVE ACROSS THE AREA TOMORROW MORNING. PRIOR TO THIS THE
MODELS WERE HINTING AT A DISTURBANCE AHEAD OF THE FRONT THAT MAY
DRIFT ACROSS THE REGION OVERNIGHT WHICH COULD PRODUCE AN ISOLD
SHOWER MAINLY OVER OUR EASTERN ZONES SUCH AS THE BLUE/WALLOWA MTNS
LOCATIONS. OTHERWISE CLOUDS WILL BE ON THE INCREASE TOWARD MORNING
AND THE FORECAST LOW TEMPS APPEAR ON TRACK FOR NOW.

.AVIATION...SOME CLOUDS AND POSSIBLY A SHOWER COULD OCCUR CREATING
MVFR CONDITIONS AT TAF SITES KPDT AND KALW BETWEEN 08Z TO 12Z.

OTHERWISE MOSTLY VFR CONDITIONS ARE EXPECTED UNTIL A COLD FRONT
APPROACHES THE REGION TOMORROW MORNING WITH AREAS OF WIND GUSTS TO
35 KTS EXPECTED ACROSS ALL TAFS. IN ADDITION AREAS OF MVFR CEILINGS
ARE LIKELY AFTER 12Z IN AND NEAR SHOWERS STARTING AT TAF SITE
KDLS...KYKM...AND KRDM AND THEN THESE CONDITIONS WILL EFFECT TAF
SITES KPDT...KPSC...KALW AFTER 15Z AND CONTINUE INTO THE EVENING.

&&

.PREV DISC... /ISSUED 429 PM PDT MON MAR 30 2015/

SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

97/97







000
FXUS66 KPDT 310556 AAB
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
1050 PM PDT MON MAR 30 2015

UPDATED THE AVIATION DISCUSSION

.UPDATE...A COLD FRONT WAS APPROACHING THE PACNW COAST AND IS
FORECAST TO MOVE ACROSS THE AREA TOMORROW MORNING. PRIOR TO THIS THE
MODELS WERE HINTING AT A DISTURBANCE AHEAD OF THE FRONT THAT MAY
DRIFT ACROSS THE REGION OVERNIGHT WHICH COULD PRODUCE AN ISOLD
SHOWER MAINLY OVER OUR EASTERN ZONES SUCH AS THE BLUE/WALLOWA MTNS
LOCATIONS. OTHERWISE CLOUDS WILL BE ON THE INCREASE TOWARD MORNING
AND THE FORECAST LOW TEMPS APPEAR ON TRACK FOR NOW.

.AVIATION...SOME CLOUDS AND POSSIBLY A SHOWER COULD OCCUR CREATING
MVFR CONDITIONS AT TAF SITES KPDT AND KALW BETWEEN 08Z TO 12Z.

OTHERWISE MOSTLY VFR CONDITIONS ARE EXPECTED UNTIL A COLD FRONT
APPROACHES THE REGION TOMORROW MORNING WITH AREAS OF WIND GUSTS TO
35 KTS EXPECTED ACROSS ALL TAFS. IN ADDITION AREAS OF MVFR CEILINGS
ARE LIKELY AFTER 12Z IN AND NEAR SHOWERS STARTING AT TAF SITE
KDLS...KYKM...AND KRDM AND THEN THESE CONDITIONS WILL EFFECT TAF
SITES KPDT...KPSC...KALW AFTER 15Z AND CONTINUE INTO THE EVENING.

&&

.PREV DISC... /ISSUED 429 PM PDT MON MAR 30 2015/

SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

97/97








000
FXUS66 KPDT 310236 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
730 PM PDT MON MAR 30 2015

.UPDATE...A COLD FRONT WAS APPROACHING THE PACNW COAST AND IS
FORECAST TO MOVE ACROSS THE AREA TOMORROW MORNING. PRIOR TO THIS THE
MODELS WERE HINTING AT A DISTURBANCE AHEAD OF THE FRONT THAT MAY
DRIFT ACROSS THE REGION OVERNIGHT WHICH COULD PRODUCE AN ISOLD
SHOWER MAINLY OVER OUR EASTERN ZONES SUCH AS THE BLUE/WALLOWA MTNS
LOCATIONS. OTHERWISE CLOUDS WILL BE ON THE INCREASE TOWARD MORNING
AND THE FORECAST LOW TEMPS APPEAR ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 429 PM PDT MON MAR 30 2015/

SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

AVIATION...00Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS EARLY THIS EVENING WILL BE SCATTERED TO BROKEN
ABOVE 20K FEET. AFTER 03Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO
THE AREA AHEAD OF A COLD FRONT. CEILINGS WILL DROP TO 4000-8000 FEET
AFTER 09Z AS LIGHT SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING
AND AN END TO THE SHOWERS WILL BEGIN AROUND 14Z-15Z. CEILINGS WILL
BE MAINLY SCATTERED ABOVE 6000 FEET AFTER 20Z. WINDS WILL REMAIN
BELOW 12 KTS THROUGH 12Z TONIGHT. AFTER 12Z WINDS WILL INCREASE TO
10-20 KTS WITH GUSTS TO 25 KTS AT ALL TAF SITES BY 17Z. WINDS WILL
INCREASE FURTHER TO 15 TO 25 KTS WITH GUSTS TO 35 KTS BY 21Z. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

97/









000
FXUS66 KPDT 310236 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
730 PM PDT MON MAR 30 2015

.UPDATE...A COLD FRONT WAS APPROACHING THE PACNW COAST AND IS
FORECAST TO MOVE ACROSS THE AREA TOMORROW MORNING. PRIOR TO THIS THE
MODELS WERE HINTING AT A DISTURBANCE AHEAD OF THE FRONT THAT MAY
DRIFT ACROSS THE REGION OVERNIGHT WHICH COULD PRODUCE AN ISOLD
SHOWER MAINLY OVER OUR EASTERN ZONES SUCH AS THE BLUE/WALLOWA MTNS
LOCATIONS. OTHERWISE CLOUDS WILL BE ON THE INCREASE TOWARD MORNING
AND THE FORECAST LOW TEMPS APPEAR ON TRACK FOR NOW.

&&

.PREV DISC... /ISSUED 429 PM PDT MON MAR 30 2015/

SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

AVIATION...00Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS EARLY THIS EVENING WILL BE SCATTERED TO BROKEN
ABOVE 20K FEET. AFTER 03Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO
THE AREA AHEAD OF A COLD FRONT. CEILINGS WILL DROP TO 4000-8000 FEET
AFTER 09Z AS LIGHT SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING
AND AN END TO THE SHOWERS WILL BEGIN AROUND 14Z-15Z. CEILINGS WILL
BE MAINLY SCATTERED ABOVE 6000 FEET AFTER 20Z. WINDS WILL REMAIN
BELOW 12 KTS THROUGH 12Z TONIGHT. AFTER 12Z WINDS WILL INCREASE TO
10-20 KTS WITH GUSTS TO 25 KTS AT ALL TAF SITES BY 17Z. WINDS WILL
INCREASE FURTHER TO 15 TO 25 KTS WITH GUSTS TO 35 KTS BY 21Z. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

97/










000
FXUS66 KPDT 302329 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
429 PM PDT MON MAR 30 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.AVIATION...00Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS EARLY THIS EVENING WILL BE SCATTERED TO BROKEN
ABOVE 20K FEET. AFTER 03Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO
THE AREA AHEAD OF A COLD FRONT. CEILINGS WILL DROP TO 4000-8000 FEET
AFTER 09Z AS LIGHT SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING
AND AN END TO THE SHOWERS WILL BEGIN AROUND 14Z-15Z. CEILINGS WILL
BE MAINLY SCATTERED ABOVE 6000 FEET AFTER 20Z. WINDS WILL REMAIN
BELOW 12 KTS THROUGH 12Z TONIGHT. AFTER 12Z WINDS WILL INCREASE TO
10-20 KTS WITH GUSTS TO 25 KTS AT ALL TAF SITES BY 17Z. WINDS WILL
INCREASE FURTHER TO 15 TO 25 KTS WITH GUSTS TO 35 KTS BY 21Z. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

90/83/83












000
FXUS66 KPDT 302329 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
429 PM PDT MON MAR 30 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.AVIATION...00Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS EARLY THIS EVENING WILL BE SCATTERED TO BROKEN
ABOVE 20K FEET. AFTER 03Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO
THE AREA AHEAD OF A COLD FRONT. CEILINGS WILL DROP TO 4000-8000 FEET
AFTER 09Z AS LIGHT SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING
AND AN END TO THE SHOWERS WILL BEGIN AROUND 14Z-15Z. CEILINGS WILL
BE MAINLY SCATTERED ABOVE 6000 FEET AFTER 20Z. WINDS WILL REMAIN
BELOW 12 KTS THROUGH 12Z TONIGHT. AFTER 12Z WINDS WILL INCREASE TO
10-20 KTS WITH GUSTS TO 25 KTS AT ALL TAF SITES BY 17Z. WINDS WILL
INCREASE FURTHER TO 15 TO 25 KTS WITH GUSTS TO 35 KTS BY 21Z. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

90/83/83













000
FXUS66 KPDT 302139
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
239 PM PDT MON MAR 30 2015

.SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...VFR CONDITIONS WILL BE
PREVALENT FOR THE NEXT 24 HOURS. CEILINGS TODAY WILL BE SCATTERED TO
BROKEN ABOVE 20K FEET THOUGH SOME CUMULUS WILL DEVELOP OVER THE
MOUNTAINS AFTER 20Z. AFTER 00Z MID LEVEL CLOUDS WILL BEGIN TO MOVE
INTO THE AREA AHEAD OF A COLD FRONT. CEILINGS WILL DROP TO 3500-7000
FEET AFTER 09Z AS LIGHT SHOWERS MOVE THROUGH THE AREA. PARTIAL
CLEARING WILL BEGIN AFTER 15Z. WINDS WILL REMAIN BELOW 12 KTS
THROUGH 12Z TONIGHT WITH THE EXCEPTION OF 10-15 KTS WINDS WITH
HIGHER GUSTS AT KDLS FROM 22Z-03Z. AFTER 12Z WINDS WILL INCREASE TO
10-18 KTS WITH GUSTS TO 25 KTS AT ALL TAF SITES. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

90/83/83










000
FXUS66 KPDT 302139
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
239 PM PDT MON MAR 30 2015

.SHORT TERM...TONIGHT THROUGH THURSDAY...AN UPPER LEVEL TROUGH WILL
MOVE INTO THE PACIFIC NORTHWEST LATE TONIGHT AND TUESDAY. THIS
TROUGH WILL PUSH A COLD FRONT THROUGH THE REGION BETWEEN MIDNIGHT
AND NOON TUESDAY. WINDS WILL INCREASE WITH AND BEHIND THIS FRONT.
SUSTAINED WINDS OF 20 TO 30 MPH ARE EXPECTED OVER MUCH OF THE
COLUMBIA BASIN FROM LATE TUESDAY MORNING INTO THE EARLY EVENING.
LOCATIONS SUCH AS THE KITTITAS VALLEY AND THE BLUE MOUNTAIN
FOOTHILLS WILL SEE THE STRONGEST WINDS. AT THIS TIME AM CONFIDENT
THAT THE KITTITAS VALLEY WILL SEE SUSTAINED WINDS OF 30 TO 35 MPH,
ESPECIALLY OVER THE NORTHERN SIDE OF THE VALLEY. THUS HAVE ISSUED A
WIND ADVISORY FOR THE KITTITAS VALLEY. WINDS IN THE BLUE MOUNTAIN
FOOTHILLS MAY BECOME EQUALLY STRONG, BUT CONFIDENCE IS LOWER AND
WILL HOLD OFF ON HIGHLIGHTS FOR NOW. MAY SEE A FEW SHOWERS AND EVEN
A STRAY THUNDERSTORM OVER THE NORTHERN BLUES, THE ADJACENT FOOTHILLS
AND THE GRANDE RONDE VALLEY OVERNIGHT AHEAD OF THE COLD FRONT. THESE
SHOWERS AND POSSIBLE STORMS WILL BE CAUSED BY ELEVATED INSTABILITY.
RAIN WILL ACCOMPANY THE COLD FRONT AS IT MOVES THROUGH TUESDAY
MORNING. COLD AIR ALOFT WILL ALLOW FOR THE DEVELOPMENT OF ISOLATED
TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TUESDAY AFTERNOON
AND EVENING. SHOWER COVERAGE WILL DECREASE TUESDAY EVENING INTO
WEDNESDAY MORNING. ALSO SNOW LEVELS WILL FALL TUESDAY NIGHT, BUT
ACCUMULATIONS WILL BE LIMITED BY THE SHOWERY NATURE OF THE PRECIP.
COLD AIR ALOFT WILL CONTINUE OVER THE AREA WEDNESDAY. THUS EXPECT
ISOLATED TO SCATTERED SHOWERS AND A FEW STRAY THUNDERSTORMS TO AGAIN
OCCUR WEDNESDAY AFTERNOON AND EVENING. NORTHWEST FLOW WILL KEEP A
FEW SHOWERS GOING OVER THE MOUNTAINS INTO THURSDAY. 90

.LONG TERM...THURSDAY NIGHT THROUGH MONDAY...THURSDAY NIGHT WILL SEE
A TROUGH DEPARTING TO THE EAST AND WEAK TEMPORARY RIDGING OVER THE
AREA AS A FRONT APPROACHES OUT IN THE EASTERN PACIFIC. THERE WILL BE
SOME LINGERING LIGHT SNOW SHOWERS IN THE HIGHER MOUNTAINS OF EASTERN
OREGON AND ALONG THE WASHINGTON CASCADE CREST. FRIDAY WILL BE MAINLY
DRY WITH INCREASING CLOUDS THROUGH THE DAY. THE FRONT WILL ARRIVE IN
THE LATE AFTERNOON AND EVENING WITH A CHANCE OF RAIN AND SNOW
SHOWERS REACHING AS FAR AS YAKIMA AND ELLENSBURG DURING THE DAY THEN
SPREADING A CHANCE OF RAIN AND SNOW IN THE MOUNTAINS AND A SLIGHT
CHANCE OF RAIN IN THE LOWER ELEVATIONS FRIDAY NIGHT. SNOW LEVELS
WILL BE 2500 TO 3500 FEET IN THE CASCADES AND 3500 TO 4500 FEET IN
THE EASTERN MOUNTAINS. THIS SYSTEM LOOKS MOISTURE DEFICIENT SO
EXPECT FEW HUNDREDTHS OF AN INCH OF RAIN IN MOST PLACES AND AN INCH
OR LESS IN THE MOUNTAINS. FRIDAY NIGHT AND SATURDAY AN UPPER LOW
MOVES SOUTH OUT OF THE GULF OF ALASKA AND DEVELOPS A TROUGH ALONG
THE COAST. MOISTURE MOVING INTO THE AREA ON A WEST TO SOUTHWEST FLOW
WILL KEEP A CHANCE OF RAIN AND SNOW SHOWERS IN THE MOUNTAINS AND A
SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS. SNOW LEVELS WILL BE
BACK AT 3000 TO 4000 FEET BY SATURDAY. MODELS DIVERGE WITH THE
HANDLING OF THE TROUGH AT THIS POINT WITH THE ECMWF KEEPING IT
OFFSHORE AND EXPANDING SOUTH THROUGH MONDAY. THE GFS MOVES THE
TROUGH ASHORE SUNDAY AND THROUGH THE AREA BY MONDAY. BOTH SCENARIOS
LOOK WET FOR US SO HAVE IN GENERAL KEPT A CHANCE OF RAIN AND SNOW IN
THE MOUNTAINS AND A SLIGHT CHANCE OF RAIN IN THE LOWER ELEVATIONS.
SUNDAY LOOKS UNSTABLE IN THE GFS SO HAVE A CHANCE OF RAIN IN THE
LOWER ELEVATIONS FOR THAT PERIOD. IF THE GFS IS RIGHT, WOULD EXPECT
SOME THUNDERSTORMS TO DEVELOP ON SUNDAY, BUT WILL HOLD OFF UNTIL
SOME BETTER AGREEMENT IS FOUND IN THE MODELS. HIGHS WILL BE AROUND
NORMAL WITH HIGHS IN THE MID 50S TO LOWER 60S AND MID 40S TO MID 50S
IN THE MOUNTAINS. LOWS WILL BE IN THE 30S AND LOWER 40S WITH MAINLY
20S IN THE MOUNTAINS. PERRY

&&

.AVIATION...PREVIOUS DISCUSSION...18Z TAFS...VFR CONDITIONS WILL BE
PREVALENT FOR THE NEXT 24 HOURS. CEILINGS TODAY WILL BE SCATTERED TO
BROKEN ABOVE 20K FEET THOUGH SOME CUMULUS WILL DEVELOP OVER THE
MOUNTAINS AFTER 20Z. AFTER 00Z MID LEVEL CLOUDS WILL BEGIN TO MOVE
INTO THE AREA AHEAD OF A COLD FRONT. CEILINGS WILL DROP TO 3500-7000
FEET AFTER 09Z AS LIGHT SHOWERS MOVE THROUGH THE AREA. PARTIAL
CLEARING WILL BEGIN AFTER 15Z. WINDS WILL REMAIN BELOW 12 KTS
THROUGH 12Z TONIGHT WITH THE EXCEPTION OF 10-15 KTS WINDS WITH
HIGHER GUSTS AT KDLS FROM 22Z-03Z. AFTER 12Z WINDS WILL INCREASE TO
10-18 KTS WITH GUSTS TO 25 KTS AT ALL TAF SITES. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  56  35  55 /  20  50  20  30
ALW  49  58  40  57 /  20  40  20  30
PSC  46  63  38  62 /  10  30  10  30
YKM  42  60  34  59 /  20  20  10  30
HRI  45  62  37  60 /  10  30  10  30
ELN  42  56  33  55 /  20  20  10  30
RDM  37  51  24  50 /  20  40  10  40
LGD  43  53  34  51 /  20  60  20  40
GCD  39  50  29  50 /  10  50  20  30
DLS  46  60  39  59 /  20  40  20  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...WIND ADVISORY FROM 11 AM TO 9 PM PDT TUESDAY WAZ026.

&&

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

$$

90/83/83









000
FXUS66 KPDT 301744 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1044 AM PDT MON MAR 30 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...MORNING UPDATE...AN UPPER LEVEL RIDGE OF HIGH PRESSURE
WILL BE OVER THE REGION TODAY. THIS RIDGE WILL SHIFT EAST TONIGHT AS
A PACIFIC SYSTEM BEGINS TO MOVE INTO THE PACIFIC NORTHWEST. AS SUCH
THE AREA WILL BE FAIR AND DRY TODAY. WILL SEE A MIX OF SUN AND HIGH
CLOUDINESS, THOUGH SHOULD ALSO SEE SOME CUMULUS CLOUDS THIS
AFTERNOON OVER THE MOUNTAINS. PRECIP ASSOCIATED WITH THE PACIFIC
SYSTEM`S COLD FRONT WILL REACH OUR WESTERN MOST ZONES LATE IN THE
TONIGHT PERIOD. OVERALL THE FORECAST PACKAGE HANDLED THESE TRENDS.
UPDATES THIS MORNING CONSISTED OF WARMING SOME HIGH TEMPS THIS
AFTERNOON, AND MAKING SOME ADJUSTMENTS TO SKY COVER AND WINDS. 90

.LONG TERM...PREVIOUS DISCUSSION...MODELS ARE IN DECENT AGREEMENT
FOR THE MID RANGE PORTION OF THE EXTENDED. WEAK RIDGING WILL TAKE
PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA. LIGHT SHOWERS CAN BE
EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT AND THURSDAY.
THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY NIGHT INTO
FRIDAY WITH TEMPERATURES WARMING SLIGHTLY. BY FRIDAY EVENING INTO
SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW PRESSURE SYSTEM
OFF THE COAST. GFS BRINGS THE SYSTEM INLAND ON SUNDAY AS A COLD
FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE COAST...PROVIDING A
SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA. OVERALL BOTH MODELS
INDICATE A FAIR AMOUNT OF MOISTURE BEING TRANSPORTED OVER THE
AREA...SO POPS WILL REMAIN IN THE CHANCE CATEGORY. ECMWF WOULD
SUPPORT A SLIGHTLY BETTER CHANCE OF THUNDERSTORMS TO OCCUR ON
SUNDAY...BUT NO THUNDER IN THE FORECAST...DUE TO LACK OF CONFIDENCE.
TEMPERATURES WILL NEED TO BE MONITORED THURSDAY AND FRIDAY
MORNING...AS SEVERAL AREAS BELOW 1500 FEET COULD REACH OR FALL
SLIGHTLY BELOW FREEZING. WHILE IT MAY BE THE EARLY PART OF THE
GROWING SEASON SOME CROPS MAY BE STARTING EARLY...AND PRECAUTIONS
MAY BE NEEDED TO PROTECT THEM FROM A FREEZE.

&&

.AVIATION...18Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS TODAY WILL BE SCATTERED TO BROKEN ABOVE 20K FEET
THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS AFTER 20Z. AFTER
00Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO THE AREA AHEAD OF A
COLD FRONT. CEILINGS WILL DROP TO 3500-7000 FEET AFTER 09Z AS LIGHT
SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING WILL BEGIN AFTER
15Z. WINDS WILL REMAIN BELOW 12 KTS THROUGH 12Z TONIGHT WITH THE
EXCEPTION OF 10-15 KTS WINDS WITH HIGHER GUSTS AT KDLS FROM 22Z-03Z.
AFTER 12Z WINDS WILL INCREASE TO 10-18 KTS WITH GUSTS TO 25 KTS AT
ALL TAF SITES. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  72  44  55  36 /   0  10  40  10
ALW  73  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  72  42  56  33 /   0  20  30  10
HRI  73  44  59  37 /   0  10  40  10
ELN  71  40  53  32 /   0  20  30  10
RDM  73  38  48  26 /   0  20  40  10
LGD  70  40  50  32 /   0  10  50  20
GCD  73  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  20  50  30

&&

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

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

$$

90/89/83








000
FXUS66 KPDT 301744 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1044 AM PDT MON MAR 30 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...MORNING UPDATE...AN UPPER LEVEL RIDGE OF HIGH PRESSURE
WILL BE OVER THE REGION TODAY. THIS RIDGE WILL SHIFT EAST TONIGHT AS
A PACIFIC SYSTEM BEGINS TO MOVE INTO THE PACIFIC NORTHWEST. AS SUCH
THE AREA WILL BE FAIR AND DRY TODAY. WILL SEE A MIX OF SUN AND HIGH
CLOUDINESS, THOUGH SHOULD ALSO SEE SOME CUMULUS CLOUDS THIS
AFTERNOON OVER THE MOUNTAINS. PRECIP ASSOCIATED WITH THE PACIFIC
SYSTEM`S COLD FRONT WILL REACH OUR WESTERN MOST ZONES LATE IN THE
TONIGHT PERIOD. OVERALL THE FORECAST PACKAGE HANDLED THESE TRENDS.
UPDATES THIS MORNING CONSISTED OF WARMING SOME HIGH TEMPS THIS
AFTERNOON, AND MAKING SOME ADJUSTMENTS TO SKY COVER AND WINDS. 90

.LONG TERM...PREVIOUS DISCUSSION...MODELS ARE IN DECENT AGREEMENT
FOR THE MID RANGE PORTION OF THE EXTENDED. WEAK RIDGING WILL TAKE
PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA. LIGHT SHOWERS CAN BE
EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT AND THURSDAY.
THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY NIGHT INTO
FRIDAY WITH TEMPERATURES WARMING SLIGHTLY. BY FRIDAY EVENING INTO
SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW PRESSURE SYSTEM
OFF THE COAST. GFS BRINGS THE SYSTEM INLAND ON SUNDAY AS A COLD
FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE COAST...PROVIDING A
SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA. OVERALL BOTH MODELS
INDICATE A FAIR AMOUNT OF MOISTURE BEING TRANSPORTED OVER THE
AREA...SO POPS WILL REMAIN IN THE CHANCE CATEGORY. ECMWF WOULD
SUPPORT A SLIGHTLY BETTER CHANCE OF THUNDERSTORMS TO OCCUR ON
SUNDAY...BUT NO THUNDER IN THE FORECAST...DUE TO LACK OF CONFIDENCE.
TEMPERATURES WILL NEED TO BE MONITORED THURSDAY AND FRIDAY
MORNING...AS SEVERAL AREAS BELOW 1500 FEET COULD REACH OR FALL
SLIGHTLY BELOW FREEZING. WHILE IT MAY BE THE EARLY PART OF THE
GROWING SEASON SOME CROPS MAY BE STARTING EARLY...AND PRECAUTIONS
MAY BE NEEDED TO PROTECT THEM FROM A FREEZE.

&&

.AVIATION...18Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS TODAY WILL BE SCATTERED TO BROKEN ABOVE 20K FEET
THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS AFTER 20Z. AFTER
00Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO THE AREA AHEAD OF A
COLD FRONT. CEILINGS WILL DROP TO 3500-7000 FEET AFTER 09Z AS LIGHT
SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING WILL BEGIN AFTER
15Z. WINDS WILL REMAIN BELOW 12 KTS THROUGH 12Z TONIGHT WITH THE
EXCEPTION OF 10-15 KTS WINDS WITH HIGHER GUSTS AT KDLS FROM 22Z-03Z.
AFTER 12Z WINDS WILL INCREASE TO 10-18 KTS WITH GUSTS TO 25 KTS AT
ALL TAF SITES. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  72  44  55  36 /   0  10  40  10
ALW  73  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  72  42  56  33 /   0  20  30  10
HRI  73  44  59  37 /   0  10  40  10
ELN  71  40  53  32 /   0  20  30  10
RDM  73  38  48  26 /   0  20  40  10
LGD  70  40  50  32 /   0  10  50  20
GCD  73  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  20  50  30

&&

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

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

$$

90/89/83







000
FXUS66 KPDT 301744 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1044 AM PDT MON MAR 30 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...MORNING UPDATE...AN UPPER LEVEL RIDGE OF HIGH PRESSURE
WILL BE OVER THE REGION TODAY. THIS RIDGE WILL SHIFT EAST TONIGHT AS
A PACIFIC SYSTEM BEGINS TO MOVE INTO THE PACIFIC NORTHWEST. AS SUCH
THE AREA WILL BE FAIR AND DRY TODAY. WILL SEE A MIX OF SUN AND HIGH
CLOUDINESS, THOUGH SHOULD ALSO SEE SOME CUMULUS CLOUDS THIS
AFTERNOON OVER THE MOUNTAINS. PRECIP ASSOCIATED WITH THE PACIFIC
SYSTEM`S COLD FRONT WILL REACH OUR WESTERN MOST ZONES LATE IN THE
TONIGHT PERIOD. OVERALL THE FORECAST PACKAGE HANDLED THESE TRENDS.
UPDATES THIS MORNING CONSISTED OF WARMING SOME HIGH TEMPS THIS
AFTERNOON, AND MAKING SOME ADJUSTMENTS TO SKY COVER AND WINDS. 90

.LONG TERM...PREVIOUS DISCUSSION...MODELS ARE IN DECENT AGREEMENT
FOR THE MID RANGE PORTION OF THE EXTENDED. WEAK RIDGING WILL TAKE
PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA. LIGHT SHOWERS CAN BE
EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT AND THURSDAY.
THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY NIGHT INTO
FRIDAY WITH TEMPERATURES WARMING SLIGHTLY. BY FRIDAY EVENING INTO
SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW PRESSURE SYSTEM
OFF THE COAST. GFS BRINGS THE SYSTEM INLAND ON SUNDAY AS A COLD
FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE COAST...PROVIDING A
SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA. OVERALL BOTH MODELS
INDICATE A FAIR AMOUNT OF MOISTURE BEING TRANSPORTED OVER THE
AREA...SO POPS WILL REMAIN IN THE CHANCE CATEGORY. ECMWF WOULD
SUPPORT A SLIGHTLY BETTER CHANCE OF THUNDERSTORMS TO OCCUR ON
SUNDAY...BUT NO THUNDER IN THE FORECAST...DUE TO LACK OF CONFIDENCE.
TEMPERATURES WILL NEED TO BE MONITORED THURSDAY AND FRIDAY
MORNING...AS SEVERAL AREAS BELOW 1500 FEET COULD REACH OR FALL
SLIGHTLY BELOW FREEZING. WHILE IT MAY BE THE EARLY PART OF THE
GROWING SEASON SOME CROPS MAY BE STARTING EARLY...AND PRECAUTIONS
MAY BE NEEDED TO PROTECT THEM FROM A FREEZE.

&&

.AVIATION...18Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS TODAY WILL BE SCATTERED TO BROKEN ABOVE 20K FEET
THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS AFTER 20Z. AFTER
00Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO THE AREA AHEAD OF A
COLD FRONT. CEILINGS WILL DROP TO 3500-7000 FEET AFTER 09Z AS LIGHT
SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING WILL BEGIN AFTER
15Z. WINDS WILL REMAIN BELOW 12 KTS THROUGH 12Z TONIGHT WITH THE
EXCEPTION OF 10-15 KTS WINDS WITH HIGHER GUSTS AT KDLS FROM 22Z-03Z.
AFTER 12Z WINDS WILL INCREASE TO 10-18 KTS WITH GUSTS TO 25 KTS AT
ALL TAF SITES. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  72  44  55  36 /   0  10  40  10
ALW  73  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  72  42  56  33 /   0  20  30  10
HRI  73  44  59  37 /   0  10  40  10
ELN  71  40  53  32 /   0  20  30  10
RDM  73  38  48  26 /   0  20  40  10
LGD  70  40  50  32 /   0  10  50  20
GCD  73  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  20  50  30

&&

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

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

$$

90/89/83







000
FXUS66 KPDT 301744 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
1044 AM PDT MON MAR 30 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...MORNING UPDATE...AN UPPER LEVEL RIDGE OF HIGH PRESSURE
WILL BE OVER THE REGION TODAY. THIS RIDGE WILL SHIFT EAST TONIGHT AS
A PACIFIC SYSTEM BEGINS TO MOVE INTO THE PACIFIC NORTHWEST. AS SUCH
THE AREA WILL BE FAIR AND DRY TODAY. WILL SEE A MIX OF SUN AND HIGH
CLOUDINESS, THOUGH SHOULD ALSO SEE SOME CUMULUS CLOUDS THIS
AFTERNOON OVER THE MOUNTAINS. PRECIP ASSOCIATED WITH THE PACIFIC
SYSTEM`S COLD FRONT WILL REACH OUR WESTERN MOST ZONES LATE IN THE
TONIGHT PERIOD. OVERALL THE FORECAST PACKAGE HANDLED THESE TRENDS.
UPDATES THIS MORNING CONSISTED OF WARMING SOME HIGH TEMPS THIS
AFTERNOON, AND MAKING SOME ADJUSTMENTS TO SKY COVER AND WINDS. 90

.LONG TERM...PREVIOUS DISCUSSION...MODELS ARE IN DECENT AGREEMENT
FOR THE MID RANGE PORTION OF THE EXTENDED. WEAK RIDGING WILL TAKE
PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA. LIGHT SHOWERS CAN BE
EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT AND THURSDAY.
THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY NIGHT INTO
FRIDAY WITH TEMPERATURES WARMING SLIGHTLY. BY FRIDAY EVENING INTO
SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW PRESSURE SYSTEM
OFF THE COAST. GFS BRINGS THE SYSTEM INLAND ON SUNDAY AS A COLD
FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE COAST...PROVIDING A
SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA. OVERALL BOTH MODELS
INDICATE A FAIR AMOUNT OF MOISTURE BEING TRANSPORTED OVER THE
AREA...SO POPS WILL REMAIN IN THE CHANCE CATEGORY. ECMWF WOULD
SUPPORT A SLIGHTLY BETTER CHANCE OF THUNDERSTORMS TO OCCUR ON
SUNDAY...BUT NO THUNDER IN THE FORECAST...DUE TO LACK OF CONFIDENCE.
TEMPERATURES WILL NEED TO BE MONITORED THURSDAY AND FRIDAY
MORNING...AS SEVERAL AREAS BELOW 1500 FEET COULD REACH OR FALL
SLIGHTLY BELOW FREEZING. WHILE IT MAY BE THE EARLY PART OF THE
GROWING SEASON SOME CROPS MAY BE STARTING EARLY...AND PRECAUTIONS
MAY BE NEEDED TO PROTECT THEM FROM A FREEZE.

&&

.AVIATION...18Z TAFS...VFR CONDITIONS WILL BE PREVALENT FOR THE NEXT
24 HOURS. CEILINGS TODAY WILL BE SCATTERED TO BROKEN ABOVE 20K FEET
THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS AFTER 20Z. AFTER
00Z MID LEVEL CLOUDS WILL BEGIN TO MOVE INTO THE AREA AHEAD OF A
COLD FRONT. CEILINGS WILL DROP TO 3500-7000 FEET AFTER 09Z AS LIGHT
SHOWERS MOVE THROUGH THE AREA. PARTIAL CLEARING WILL BEGIN AFTER
15Z. WINDS WILL REMAIN BELOW 12 KTS THROUGH 12Z TONIGHT WITH THE
EXCEPTION OF 10-15 KTS WINDS WITH HIGHER GUSTS AT KDLS FROM 22Z-03Z.
AFTER 12Z WINDS WILL INCREASE TO 10-18 KTS WITH GUSTS TO 25 KTS AT
ALL TAF SITES. PERRY

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  72  44  55  36 /   0  10  40  10
ALW  73  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  72  42  56  33 /   0  20  30  10
HRI  73  44  59  37 /   0  10  40  10
ELN  71  40  53  32 /   0  20  30  10
RDM  73  38  48  26 /   0  20  40  10
LGD  70  40  50  32 /   0  10  50  20
GCD  73  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  20  50  30

&&

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

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

$$

90/89/83








000
FXUS66 KPDT 301617
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
917 AM PDT MON MAR 30 2015

.SHORT TERM...MORNING UPDATE...AN UPPER LEVEL RIDGE OF HIGH PRESSURE
WILL BE OVER THE REGION TODAY. THIS RIDGE WILL SHIFT EAST TONIGHT AS
A PACIFIC SYSTEM BEGINS TO MOVE INTO THE PACIFIC NORTHWEST. AS SUCH
THE AREA WILL BE FAIR AND DRY TODAY. WILL SEE A MIX OF SUN AND HIGH
CLOUDINESS, THOUGH SHOULD ALSO SEE SOME CUMULUS CLOUDS THIS
AFTERNOON OVER THE MOUNTAINS. PRECIP ASSOCIATED WITH THE PACIFIC
SYSTEM`S COLD FRONT WILL REACH OUR WESTERN MOST ZONES LATE IN THE
TONIGHT PERIOD. OVERALL THE FORECAST PACKAGE HANDLED THESE TRENDS.
UPDATES THIS MORNING CONSISTED OF WARMING SOME HIGH TEMPS THIS
AFTERNOON, AND MAKING SOME ADJUSTMENTS TO SKY COVER AND WINDS. 90

.LONG TERM...PREVIOUS DISCUSSION...MODELS ARE IN DECENT AGREEMENT
FOR THE MID RANGE PORTION OF THE EXTENDED. WEAK RIDGING WILL TAKE
PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA. LIGHT SHOWERS CAN BE
EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT AND THURSDAY.
THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY NIGHT INTO
FRIDAY WITH TEMPERATURES WARMING SLIGHTLY. BY FRIDAY EVENING INTO
SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW PRESSURE SYSTEM
OFF THE COAST. GFS BRINGS THE SYSTEM INLAND ON SUNDAY AS A COLD
FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE COAST...PROVIDING A
SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA. OVERALL BOTH MODELS
INDICATE A FAIR AMOUNT OF MOISTURE BEING TRANSPORTED OVER THE
AREA...SO POPS WILL REMAIN IN THE CHANCE CATEGORY. ECMWF WOULD
SUPPORT A SLIGHTLY BETTER CHANCE OF THUNDERSTORMS TO OCCUR ON
SUNDAY...BUT NO THUNDER IN THE FORECAST...DUE TO LACK OF CONFIDENCE.
TEMPERATURES WILL NEED TO BE MONITORED THURSDAY AND FRIDAY
MORNING...AS SEVERAL AREAS BELOW 1500 FEET COULD REACH OR FALL
SLIGHTLY BELOW FREEZING. WHILE IT MAY BE THE EARLY PART OF THE
GROWING SEASON SOME CROPS MAY BE STARTING EARLY...AND PRECAUTIONS
MAY BE NEEDED TO PROTECT THEM FROM A FREEZE.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS WILL
CONTINUE FOR THE NEXT 24 HOURS. CEILINGS WILL BE SCATTERED TO BROKEN
ABOVE 15K FEET THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS
AFTER 20Z. WINDS ARE EXPECTED TO BE GENERALLY BELOW 12 KTS FOR THE
NEXT 24 HOURS THOUGH KDLS WILL REACH 10-15 KTS WITH HIGHER GUSTS
AFTER 00Z. SHOWERS WILL RETURN TO THE AREA AFTER 09Z TONIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  72  44  55  36 /   0  10  40  10
ALW  73  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  72  42  56  33 /   0  20  30  10
HRI  73  44  59  37 /   0  10  40  10
ELN  71  40  53  32 /   0  20  30  10
RDM  73  38  48  26 /   0  20  40  10
LGD  70  40  50  32 /   0  10  50  20
GCD  73  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  20  50  30

&&

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

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

$$

90/89/83









000
FXUS66 KPDT 301617
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
917 AM PDT MON MAR 30 2015

.SHORT TERM...MORNING UPDATE...AN UPPER LEVEL RIDGE OF HIGH PRESSURE
WILL BE OVER THE REGION TODAY. THIS RIDGE WILL SHIFT EAST TONIGHT AS
A PACIFIC SYSTEM BEGINS TO MOVE INTO THE PACIFIC NORTHWEST. AS SUCH
THE AREA WILL BE FAIR AND DRY TODAY. WILL SEE A MIX OF SUN AND HIGH
CLOUDINESS, THOUGH SHOULD ALSO SEE SOME CUMULUS CLOUDS THIS
AFTERNOON OVER THE MOUNTAINS. PRECIP ASSOCIATED WITH THE PACIFIC
SYSTEM`S COLD FRONT WILL REACH OUR WESTERN MOST ZONES LATE IN THE
TONIGHT PERIOD. OVERALL THE FORECAST PACKAGE HANDLED THESE TRENDS.
UPDATES THIS MORNING CONSISTED OF WARMING SOME HIGH TEMPS THIS
AFTERNOON, AND MAKING SOME ADJUSTMENTS TO SKY COVER AND WINDS. 90

.LONG TERM...PREVIOUS DISCUSSION...MODELS ARE IN DECENT AGREEMENT
FOR THE MID RANGE PORTION OF THE EXTENDED. WEAK RIDGING WILL TAKE
PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA. LIGHT SHOWERS CAN BE
EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT AND THURSDAY.
THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY NIGHT INTO
FRIDAY WITH TEMPERATURES WARMING SLIGHTLY. BY FRIDAY EVENING INTO
SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW PRESSURE SYSTEM
OFF THE COAST. GFS BRINGS THE SYSTEM INLAND ON SUNDAY AS A COLD
FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE COAST...PROVIDING A
SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA. OVERALL BOTH MODELS
INDICATE A FAIR AMOUNT OF MOISTURE BEING TRANSPORTED OVER THE
AREA...SO POPS WILL REMAIN IN THE CHANCE CATEGORY. ECMWF WOULD
SUPPORT A SLIGHTLY BETTER CHANCE OF THUNDERSTORMS TO OCCUR ON
SUNDAY...BUT NO THUNDER IN THE FORECAST...DUE TO LACK OF CONFIDENCE.
TEMPERATURES WILL NEED TO BE MONITORED THURSDAY AND FRIDAY
MORNING...AS SEVERAL AREAS BELOW 1500 FEET COULD REACH OR FALL
SLIGHTLY BELOW FREEZING. WHILE IT MAY BE THE EARLY PART OF THE
GROWING SEASON SOME CROPS MAY BE STARTING EARLY...AND PRECAUTIONS
MAY BE NEEDED TO PROTECT THEM FROM A FREEZE.

&&

.AVIATION...PREVIOUS DISCUSSION...12Z TAFS...VFR CONDITIONS WILL
CONTINUE FOR THE NEXT 24 HOURS. CEILINGS WILL BE SCATTERED TO BROKEN
ABOVE 15K FEET THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS
AFTER 20Z. WINDS ARE EXPECTED TO BE GENERALLY BELOW 12 KTS FOR THE
NEXT 24 HOURS THOUGH KDLS WILL REACH 10-15 KTS WITH HIGHER GUSTS
AFTER 00Z. SHOWERS WILL RETURN TO THE AREA AFTER 09Z TONIGHT.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  72  44  55  36 /   0  10  40  10
ALW  73  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  72  42  56  33 /   0  20  30  10
HRI  73  44  59  37 /   0  10  40  10
ELN  71  40  53  32 /   0  20  30  10
RDM  73  38  48  26 /   0  20  40  10
LGD  70  40  50  32 /   0  10  50  20
GCD  73  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  20  50  30

&&

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

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

$$

90/89/83








000
FXUS66 KPDT 301137 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
437 AM PDT MON MAR 30 2015

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH WEDNESDAY...UPPER RIDGE WILL PERSIST
OVER THE REGION FOR ANOTHER DAY TODAY WITH DRY CONDITIONS AND WARMER
TEMPERATURES. EVEN THOUGH IT WILL BE WARMER AM NOT EXPECTING ANY
RECORD HIGH TEMPERATURES TO BE BROKEN. MAXIMUM READINGS WILL BE IN
THE UPPER 60S TO LOWER 70S IN THE LOWER ELEVATIONS AND MID 50S TO
MID 60S IN THE MOUNTAINS. WINDS WILL REMAIN LIGHT TODAY. THE NEXT
WEATHER SYSTEM WILL BEGIN TO MOVE INTO THE PACIFIC NORTHWEST TONIGHT
AND ON TUESDAY WITH A COLD FRONT. THIS SYSTEM WILL BRING A CHANCE OF
LIGHT RAIN TO THE CWA ALONG THE CASCADE EAST SLOPES TONIGHT AND THEN
OVER THE REST OF THE CWA ON TUESDAY MORNING. TEMPERATURES WILL COOL
DOWN SIGNIFICANTLY AS WELL AS SNOW LEVELS. EXPECTING MAXIMUM
TEMPERATURES TO ONLY BE IN THE 50S LOWER ELEVATIONS WITH MOSTLY 40S
IN THE MOUNTAINS ON TUESDAY. STEADY LIGHT RAIN IN THE MORNING
TUESDAY WILL BECOME SHOWERY CONVECTIVE TYPE OF PRECIPITATION TUESDAY
AFTERNOON AS COLDER AIR ALOFT WITH AN UPPER TROUGH MOVES INTO THE
REGION TO INCREASE LAPSE RATES AND INSTABILITY. CANNOT RULE OUT A
CLAP OF THUNDER OR TWO TUESDAY AFTERNOON IN THE MORE UNSTABLE AIR.
THE OTHER IMPACT THIS SYSTEM WILL HAVE ON THE CWA WILL BE INCREASING
WINDS ACROSS MOST OF THE CWA. AM NOT EXPECTING WIND ADVISORY SPEEDS
BUT THERE MAY BE ISOLATED LOCATIONS WHERE WINDS DO REACH 30 MPH WITH
GUTS 40 TO 45 MPH ON TUESDAY. COOLER SHOWERY CONDITIONS WILL PERSIST
TUESDAY NIGHT INTO WEDNESDAY WITH THE FLOW BECOMING NORTHWEST ON
WEDNESDAY. 88

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...MODELS ARE IN DECENT
AGREEMENT FOR THE MID RANGE PORTION OF THE EXTENDED.  WEAK RIDGING
WILL TAKE PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA.  LIGHT
SHOWERS CAN BE EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT
AND THURSDAY.  THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY
NIGHT INTO FRIDAY WITH TEMPERATURES WARMING SLIGHTLY.  BY FRIDAY
EVENING INTO SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW
PRESSURE SYSTEM OFF THE COAST.  GFS BRINGS THE SYSTEM INLAND ON
SUNDAY AS A COLD FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE
COAST...PROVIDING A SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA.
OVERALL BOTH MODELS INDICATE A FAIR AMOUNT OF MOISTURE BEING
TRANSPORTED OVER THE AREA...SO POPS WILL REMAIN IN THE CHANCE
CATEGORY.  ECMWF WOULD SUPPORT A SLIGHTLY BETTER CHANCE OF
THUNDERSTORMS TO OCCUR ON SUNDAY...BUT NO THUNDER IN THE
FORECAST...DUE TO LACK OF CONFIDENCE.  TEMPERATURES WILL NEED TO BE
MONITORED THURSDAY AND FRIDAY MORNING...AS SEVERAL AREAS BELOW 1500
FEET COULD REACH OR FALL SLIGHTLY BELOW FREEZING.  WHILE IT MAY BE
THE EARLY PART OF THE GROWING SEASON SOME CROPS MAY BE STARTING
EARLY...AND PRECAUTIONS MAY BE NEEDED TO PROTECT THEM FROM A
FREEZE.  WEBER

&&

.AVIATION...12Z TAFS...VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24
HOURS. CEILINGS WILL BE SCATTERED TO BROKEN ABOVE 15K FEET THOUGH
SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS AFTER 20Z. WINDS ARE
EXPECTED TO BE GENERALLY BELOW 12 KTS FOR THE NEXT 24 HOURS THOUGH
KDLS WILL REACH 10-15 KTS WITH HIGHER GUSTS AFTER 00Z.  SHOWERS WILL
RETURN TO THE AREA AFTER 09Z TONIGHT.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  68  44  55  36 /   0  10  40  10
ALW  70  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  69  42  56  33 /   0  20  30  10
HRI  72  44  59  37 /   0  10  40  10
ELN  68  40  53  32 /   0  20  30  10
RDM  70  38  48  26 /   0  20  40  10
LGD  69  40  50  32 /   0  10  50  20
GCD  72  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  30  50  30

&&

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

&&

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

$$

88/89/89







000
FXUS66 KPDT 301137 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
437 AM PDT MON MAR 30 2015

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH WEDNESDAY...UPPER RIDGE WILL PERSIST
OVER THE REGION FOR ANOTHER DAY TODAY WITH DRY CONDITIONS AND WARMER
TEMPERATURES. EVEN THOUGH IT WILL BE WARMER AM NOT EXPECTING ANY
RECORD HIGH TEMPERATURES TO BE BROKEN. MAXIMUM READINGS WILL BE IN
THE UPPER 60S TO LOWER 70S IN THE LOWER ELEVATIONS AND MID 50S TO
MID 60S IN THE MOUNTAINS. WINDS WILL REMAIN LIGHT TODAY. THE NEXT
WEATHER SYSTEM WILL BEGIN TO MOVE INTO THE PACIFIC NORTHWEST TONIGHT
AND ON TUESDAY WITH A COLD FRONT. THIS SYSTEM WILL BRING A CHANCE OF
LIGHT RAIN TO THE CWA ALONG THE CASCADE EAST SLOPES TONIGHT AND THEN
OVER THE REST OF THE CWA ON TUESDAY MORNING. TEMPERATURES WILL COOL
DOWN SIGNIFICANTLY AS WELL AS SNOW LEVELS. EXPECTING MAXIMUM
TEMPERATURES TO ONLY BE IN THE 50S LOWER ELEVATIONS WITH MOSTLY 40S
IN THE MOUNTAINS ON TUESDAY. STEADY LIGHT RAIN IN THE MORNING
TUESDAY WILL BECOME SHOWERY CONVECTIVE TYPE OF PRECIPITATION TUESDAY
AFTERNOON AS COLDER AIR ALOFT WITH AN UPPER TROUGH MOVES INTO THE
REGION TO INCREASE LAPSE RATES AND INSTABILITY. CANNOT RULE OUT A
CLAP OF THUNDER OR TWO TUESDAY AFTERNOON IN THE MORE UNSTABLE AIR.
THE OTHER IMPACT THIS SYSTEM WILL HAVE ON THE CWA WILL BE INCREASING
WINDS ACROSS MOST OF THE CWA. AM NOT EXPECTING WIND ADVISORY SPEEDS
BUT THERE MAY BE ISOLATED LOCATIONS WHERE WINDS DO REACH 30 MPH WITH
GUTS 40 TO 45 MPH ON TUESDAY. COOLER SHOWERY CONDITIONS WILL PERSIST
TUESDAY NIGHT INTO WEDNESDAY WITH THE FLOW BECOMING NORTHWEST ON
WEDNESDAY. 88

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...MODELS ARE IN DECENT
AGREEMENT FOR THE MID RANGE PORTION OF THE EXTENDED.  WEAK RIDGING
WILL TAKE PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA.  LIGHT
SHOWERS CAN BE EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT
AND THURSDAY.  THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY
NIGHT INTO FRIDAY WITH TEMPERATURES WARMING SLIGHTLY.  BY FRIDAY
EVENING INTO SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW
PRESSURE SYSTEM OFF THE COAST.  GFS BRINGS THE SYSTEM INLAND ON
SUNDAY AS A COLD FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE
COAST...PROVIDING A SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA.
OVERALL BOTH MODELS INDICATE A FAIR AMOUNT OF MOISTURE BEING
TRANSPORTED OVER THE AREA...SO POPS WILL REMAIN IN THE CHANCE
CATEGORY.  ECMWF WOULD SUPPORT A SLIGHTLY BETTER CHANCE OF
THUNDERSTORMS TO OCCUR ON SUNDAY...BUT NO THUNDER IN THE
FORECAST...DUE TO LACK OF CONFIDENCE.  TEMPERATURES WILL NEED TO BE
MONITORED THURSDAY AND FRIDAY MORNING...AS SEVERAL AREAS BELOW 1500
FEET COULD REACH OR FALL SLIGHTLY BELOW FREEZING.  WHILE IT MAY BE
THE EARLY PART OF THE GROWING SEASON SOME CROPS MAY BE STARTING
EARLY...AND PRECAUTIONS MAY BE NEEDED TO PROTECT THEM FROM A
FREEZE.  WEBER

&&

.AVIATION...12Z TAFS...VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24
HOURS. CEILINGS WILL BE SCATTERED TO BROKEN ABOVE 15K FEET THOUGH
SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS AFTER 20Z. WINDS ARE
EXPECTED TO BE GENERALLY BELOW 12 KTS FOR THE NEXT 24 HOURS THOUGH
KDLS WILL REACH 10-15 KTS WITH HIGHER GUSTS AFTER 00Z.  SHOWERS WILL
RETURN TO THE AREA AFTER 09Z TONIGHT.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  68  44  55  36 /   0  10  40  10
ALW  70  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  69  42  56  33 /   0  20  30  10
HRI  72  44  59  37 /   0  10  40  10
ELN  68  40  53  32 /   0  20  30  10
RDM  70  38  48  26 /   0  20  40  10
LGD  69  40  50  32 /   0  10  50  20
GCD  72  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  30  50  30

&&

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

&&

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

$$

88/89/89








000
FXUS66 KPDT 301137 AAA
AFDPDT

AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE PENDLETON OR
437 AM PDT MON MAR 30 2015

UPDATED FOR AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH WEDNESDAY...UPPER RIDGE WILL PERSIST
OVER THE REGION FOR ANOTHER DAY TODAY WITH DRY CONDITIONS AND WARMER
TEMPERATURES. EVEN THOUGH IT WILL BE WARMER AM NOT EXPECTING ANY
RECORD HIGH TEMPERATURES TO BE BROKEN. MAXIMUM READINGS WILL BE IN
THE UPPER 60S TO LOWER 70S IN THE LOWER ELEVATIONS AND MID 50S TO
MID 60S IN THE MOUNTAINS. WINDS WILL REMAIN LIGHT TODAY. THE NEXT
WEATHER SYSTEM WILL BEGIN TO MOVE INTO THE PACIFIC NORTHWEST TONIGHT
AND ON TUESDAY WITH A COLD FRONT. THIS SYSTEM WILL BRING A CHANCE OF
LIGHT RAIN TO THE CWA ALONG THE CASCADE EAST SLOPES TONIGHT AND THEN
OVER THE REST OF THE CWA ON TUESDAY MORNING. TEMPERATURES WILL COOL
DOWN SIGNIFICANTLY AS WELL AS SNOW LEVELS. EXPECTING MAXIMUM
TEMPERATURES TO ONLY BE IN THE 50S LOWER ELEVATIONS WITH MOSTLY 40S
IN THE MOUNTAINS ON TUESDAY. STEADY LIGHT RAIN IN THE MORNING
TUESDAY WILL BECOME SHOWERY CONVECTIVE TYPE OF PRECIPITATION TUESDAY
AFTERNOON AS COLDER AIR ALOFT WITH AN UPPER TROUGH MOVES INTO THE
REGION TO INCREASE LAPSE RATES AND INSTABILITY. CANNOT RULE OUT A
CLAP OF THUNDER OR TWO TUESDAY AFTERNOON IN THE MORE UNSTABLE AIR.
THE OTHER IMPACT THIS SYSTEM WILL HAVE ON THE CWA WILL BE INCREASING
WINDS ACROSS MOST OF THE CWA. AM NOT EXPECTING WIND ADVISORY SPEEDS
BUT THERE MAY BE ISOLATED LOCATIONS WHERE WINDS DO REACH 30 MPH WITH
GUTS 40 TO 45 MPH ON TUESDAY. COOLER SHOWERY CONDITIONS WILL PERSIST
TUESDAY NIGHT INTO WEDNESDAY WITH THE FLOW BECOMING NORTHWEST ON
WEDNESDAY. 88

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...MODELS ARE IN DECENT
AGREEMENT FOR THE MID RANGE PORTION OF THE EXTENDED.  WEAK RIDGING
WILL TAKE PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA.  LIGHT
SHOWERS CAN BE EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT
AND THURSDAY.  THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY
NIGHT INTO FRIDAY WITH TEMPERATURES WARMING SLIGHTLY.  BY FRIDAY
EVENING INTO SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW
PRESSURE SYSTEM OFF THE COAST.  GFS BRINGS THE SYSTEM INLAND ON
SUNDAY AS A COLD FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE
COAST...PROVIDING A SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA.
OVERALL BOTH MODELS INDICATE A FAIR AMOUNT OF MOISTURE BEING
TRANSPORTED OVER THE AREA...SO POPS WILL REMAIN IN THE CHANCE
CATEGORY.  ECMWF WOULD SUPPORT A SLIGHTLY BETTER CHANCE OF
THUNDERSTORMS TO OCCUR ON SUNDAY...BUT NO THUNDER IN THE
FORECAST...DUE TO LACK OF CONFIDENCE.  TEMPERATURES WILL NEED TO BE
MONITORED THURSDAY AND FRIDAY MORNING...AS SEVERAL AREAS BELOW 1500
FEET COULD REACH OR FALL SLIGHTLY BELOW FREEZING.  WHILE IT MAY BE
THE EARLY PART OF THE GROWING SEASON SOME CROPS MAY BE STARTING
EARLY...AND PRECAUTIONS MAY BE NEEDED TO PROTECT THEM FROM A
FREEZE.  WEBER

&&

.AVIATION...12Z TAFS...VFR CONDITIONS WILL CONTINUE FOR THE NEXT 24
HOURS. CEILINGS WILL BE SCATTERED TO BROKEN ABOVE 15K FEET THOUGH
SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS AFTER 20Z. WINDS ARE
EXPECTED TO BE GENERALLY BELOW 12 KTS FOR THE NEXT 24 HOURS THOUGH
KDLS WILL REACH 10-15 KTS WITH HIGHER GUSTS AFTER 00Z.  SHOWERS WILL
RETURN TO THE AREA AFTER 09Z TONIGHT.  WEBER

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  68  44  55  36 /   0  10  40  10
ALW  70  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  69  42  56  33 /   0  20  30  10
HRI  72  44  59  37 /   0  10  40  10
ELN  68  40  53  32 /   0  20  30  10
RDM  70  38  48  26 /   0  20  40  10
LGD  69  40  50  32 /   0  10  50  20
GCD  72  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  30  50  30

&&

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

&&

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

$$

88/89/89








000
FXUS66 KPDT 300911
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
210 AM PDT MON MAR 30 2015

.SHORT TERM...TODAY THROUGH WEDNESDAY...UPPER RIDGE WILL PERSIST
OVER THE REGION FOR ANOTHER DAY TODAY WITH DRY CONDITIONS AND WARMER
TEMPERATURES. EVEN THOUGH IT WILL BE WARMER AM NOT EXPECTING ANY
RECORD HIGH TEMPERATURES TO BE BROKEN. MAXIMUM READINGS WILL BE IN
THE UPPER 60S TO LOWER 70S IN THE LOWER ELEVATIONS AND MID 50S TO
MID 60S IN THE MOUNTAINS. WINDS WILL REMAIN LIGHT TODAY. THE NEXT
WEATHER SYSTEM WILL BEGIN TO MOVE INTO THE PACIFIC NORTHWEST TONIGHT
AND ON TUESDAY WITH A COLD FRONT. THIS SYSTEM WILL BRING A CHANCE OF
LIGHT RAIN TO THE CWA ALONG THE CASCADE EAST SLOPES TONIGHT AND THEN
OVER THE REST OF THE CWA ON TUESDAY MORNING. TEMPERATURES WILL COOL
DOWN SIGNIFICANTLY AS WELL AS SNOW LEVELS. EXPECTING MAXIMUM
TEMPERATURES TO ONLY BE IN THE 50S LOWER ELEVATIONS WITH MOSTLY 40S
IN THE MOUNTAINS ON TUESDAY. STEADY LIGHT RAIN IN THE MORNING
TUESDAY WILL BECOME SHOWERY CONVECTIVE TYPE OF PRECIPITATION TUESDAY
AFTERNOON AS COLDER AIR ALOFT WITH AN UPPER TROUGH MOVES INTO THE
REGION TO INCREASE LAPSE RATES AND INSTABILITY. CANNOT RULE OUT A
CLAP OF THUNDER OR TWO TUESDAY AFTERNOON IN THE MORE UNSTABLE AIR.
THE OTHER IMPACT THIS SYSTEM WILL HAVE ON THE CWA WILL BE INCREASING
WINDS ACROSS MOST OF THE CWA. AM NOT EXPECTING WIND ADVISORY SPEEDS
BUT THERE MAY BE ISOLATED LOCATIONS WHERE WINDS DO REACH 30 MPH WITH
GUTS 40 TO 45 MPH ON TUESDAY. COOLER SHOWERY CONDITIONS WILL PERSIST
TUESDAY NIGHT INTO WEDNESDAY WITH THE FLOW BECOMING NORTHWEST ON
WEDNESDAY. 88

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...MODELS ARE IN DECENT
AGREEMENT FOR THE MID RANGE PORTION OF THE EXTENDED.  WEAK RIDGING
WILL TAKE PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA.  LIGHT
SHOWERS CAN BE EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT
AND THURSDAY.  THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY
NIGHT INTO FRIDAY WITH TEMPERATURES WARMING SLIGHTLY.  BY FRIDAY
EVENING INTO SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW
PRESSURE SYSTEM OFF THE COAST.  GFS BRINGS THE SYSTEM INLAND ON
SUNDAY AS A COLD FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE
COAST...PROVIDING A SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA.
OVERALL BOTH MODELS INDICATE A FAIR AMOUNT OF MOISTURE BEING
TRANSPORTED OVER THE AREA...SO POPS WILL REMAIN IN THE CHANCE
CATEGORY.  ECMWF WOULD SUPPORT A SLIGHTLY BETTER CHANCE OF
THUNDERSTORMS TO OCCUR ON SUNDAY...BUT NO THUNDER IN THE
FORECAST...DUE TO LACK OF CONFIDENCE.  TEMPERATURES WILL NEED TO BE
MONITORED THURSDAY AND FRIDAY MORNING...AS SEVERAL AREAS BELOW 1500
FEET COULD REACH OR FALL SLIGHTLY BELOW FREEZING.  WHILE IT MAY BE
THE EARLY PART OF THE GROWING SEASON SOME CROPS MAY BE STARTING
EARLY...AND PRECAUTIONS MAY BE NEEDED TO PROTECT THEM FROM A
FREEZE.  WEBER

&&

.AVIATION...PREVIOUS DISCUSSION...06Z TAFS...VFR CONDITIONS WILL
CONTINUE FOR THE NEXT 24 HOURS. CEILINGS WILL BE SCATTERED TO BROKEN
ABOVE 15K FEET THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS
AFTER 20Z TOMORROW AFTERNOON. WINDS ARE EXPECTED TO BE GENERALLY
BELOW 12 KTS FOR THE NEXT 24 HOURS THOUGH KDLS WILL REACH 10-15 KTS
WITH HIGHER GUSTS TOMORROW AFTERNOON.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  68  44  55  36 /   0  10  40  10
ALW  70  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  69  42  56  33 /   0  20  30  10
HRI  72  44  59  37 /   0  10  40  10
ELN  68  40  53  32 /   0  20  30  10
RDM  70  38  48  26 /   0  20  40  10
LGD  69  40  50  32 /   0  10  50  20
GCD  72  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  30  50  30

&&

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

&&

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

$$

88/89/89






000
FXUS66 KPDT 300911
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
210 AM PDT MON MAR 30 2015

.SHORT TERM...TODAY THROUGH WEDNESDAY...UPPER RIDGE WILL PERSIST
OVER THE REGION FOR ANOTHER DAY TODAY WITH DRY CONDITIONS AND WARMER
TEMPERATURES. EVEN THOUGH IT WILL BE WARMER AM NOT EXPECTING ANY
RECORD HIGH TEMPERATURES TO BE BROKEN. MAXIMUM READINGS WILL BE IN
THE UPPER 60S TO LOWER 70S IN THE LOWER ELEVATIONS AND MID 50S TO
MID 60S IN THE MOUNTAINS. WINDS WILL REMAIN LIGHT TODAY. THE NEXT
WEATHER SYSTEM WILL BEGIN TO MOVE INTO THE PACIFIC NORTHWEST TONIGHT
AND ON TUESDAY WITH A COLD FRONT. THIS SYSTEM WILL BRING A CHANCE OF
LIGHT RAIN TO THE CWA ALONG THE CASCADE EAST SLOPES TONIGHT AND THEN
OVER THE REST OF THE CWA ON TUESDAY MORNING. TEMPERATURES WILL COOL
DOWN SIGNIFICANTLY AS WELL AS SNOW LEVELS. EXPECTING MAXIMUM
TEMPERATURES TO ONLY BE IN THE 50S LOWER ELEVATIONS WITH MOSTLY 40S
IN THE MOUNTAINS ON TUESDAY. STEADY LIGHT RAIN IN THE MORNING
TUESDAY WILL BECOME SHOWERY CONVECTIVE TYPE OF PRECIPITATION TUESDAY
AFTERNOON AS COLDER AIR ALOFT WITH AN UPPER TROUGH MOVES INTO THE
REGION TO INCREASE LAPSE RATES AND INSTABILITY. CANNOT RULE OUT A
CLAP OF THUNDER OR TWO TUESDAY AFTERNOON IN THE MORE UNSTABLE AIR.
THE OTHER IMPACT THIS SYSTEM WILL HAVE ON THE CWA WILL BE INCREASING
WINDS ACROSS MOST OF THE CWA. AM NOT EXPECTING WIND ADVISORY SPEEDS
BUT THERE MAY BE ISOLATED LOCATIONS WHERE WINDS DO REACH 30 MPH WITH
GUTS 40 TO 45 MPH ON TUESDAY. COOLER SHOWERY CONDITIONS WILL PERSIST
TUESDAY NIGHT INTO WEDNESDAY WITH THE FLOW BECOMING NORTHWEST ON
WEDNESDAY. 88

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...MODELS ARE IN DECENT
AGREEMENT FOR THE MID RANGE PORTION OF THE EXTENDED.  WEAK RIDGING
WILL TAKE PLACE WITH A COOL NORTHWEST FLOW OVER THE AREA.  LIGHT
SHOWERS CAN BE EXPECTED...MAINLY OVER THE MOUNTAINS WEDNESDAY NIGHT
AND THURSDAY.  THIS WILL TRANSITION TO A WESTERLY FLOW ON THURSDAY
NIGHT INTO FRIDAY WITH TEMPERATURES WARMING SLIGHTLY.  BY FRIDAY
EVENING INTO SATURDAY...MODELS START TO DIVERGE A BIT WITH A LOW
PRESSURE SYSTEM OFF THE COAST.  GFS BRINGS THE SYSTEM INLAND ON
SUNDAY AS A COLD FRONT...WHILE THE ECMWF HOLDS THE SYSTEM OFF THE
COAST...PROVIDING A SLIGHTLY WARMER SOUTHWEST FLOW TO THE AREA.
OVERALL BOTH MODELS INDICATE A FAIR AMOUNT OF MOISTURE BEING
TRANSPORTED OVER THE AREA...SO POPS WILL REMAIN IN THE CHANCE
CATEGORY.  ECMWF WOULD SUPPORT A SLIGHTLY BETTER CHANCE OF
THUNDERSTORMS TO OCCUR ON SUNDAY...BUT NO THUNDER IN THE
FORECAST...DUE TO LACK OF CONFIDENCE.  TEMPERATURES WILL NEED TO BE
MONITORED THURSDAY AND FRIDAY MORNING...AS SEVERAL AREAS BELOW 1500
FEET COULD REACH OR FALL SLIGHTLY BELOW FREEZING.  WHILE IT MAY BE
THE EARLY PART OF THE GROWING SEASON SOME CROPS MAY BE STARTING
EARLY...AND PRECAUTIONS MAY BE NEEDED TO PROTECT THEM FROM A
FREEZE.  WEBER

&&

.AVIATION...PREVIOUS DISCUSSION...06Z TAFS...VFR CONDITIONS WILL
CONTINUE FOR THE NEXT 24 HOURS. CEILINGS WILL BE SCATTERED TO BROKEN
ABOVE 15K FEET THOUGH SOME CUMULUS WILL DEVELOP OVER THE MOUNTAINS
AFTER 20Z TOMORROW AFTERNOON. WINDS ARE EXPECTED TO BE GENERALLY
BELOW 12 KTS FOR THE NEXT 24 HOURS THOUGH KDLS WILL REACH 10-15 KTS
WITH HIGHER GUSTS TOMORROW AFTERNOON.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  68  44  55  36 /   0  10  40  10
ALW  70  45  56  39 /   0  10  40  10
PSC  74  46  60  38 /   0  10  30  10
YKM  69  42  56  33 /   0  20  30  10
HRI  72  44  59  37 /   0  10  40  10
ELN  68  40  53  32 /   0  20  30  10
RDM  70  38  48  26 /   0  20  40  10
LGD  69  40  50  32 /   0  10  50  20
GCD  72  34  49  29 /   0  10  40  20
DLS  73  46  56  37 /   0  30  50  30

&&

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

&&

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

$$

88/89/89







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