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HAZARDOUS WEATHER OUTLOOK
Issue Date: 428 PM PDT MON OCT 6 2008
Expiration: 715 AM PDT TUE OCT 07 2008
UPDATED TO ADD A WIND ADVISORY HEADLINE FOR TUESDAY IN DAYS TWO
THROUGH SEVEN DISCUSSION
THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.
.DAY ONE...TONIGHT
THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.
INCREASING CLOUDS WILL SPREAD ACROSS THE FORECAST AREA TONIGHT AS
ANOTHER PACIFIC WEATHER SYSTEM BRINGS A COLD FRONT TO THE WEST SIDE
OF THE CASCADES AND SPREADS MOISTURE AHEAD OF THE FRONT EAST OF THE
CASCADES...WHICH WILL BRING A CHANCE OF RAIN TO MUCH OF THE AREA IN
COUNTIES BORDERING THE CASCADES AS WELL AS TO THE KITTITAS AND
YAKIMA VALLEYS WITH A SLIGHT CHANCE OF RAIN OVERNIGHT ELSEWHERE.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY
WIND ADVISORY IN EFFECT FROM 6 AM TO 8 PM PDT TUESDAY
EASTERN COLUMBIA RIVER GORGE, KITTITAS VALLEY, YAKIMA VALLEY,
LOWER COLUMBIA BASIN OF WASHINGTON AND OREGON, FOOTHILLS OF THE
BLUE MOUNTAINS IN WASHINGTON AND OREGON
THE FRONTAL SYSTEM THAT WILL MOVE INTO THE AREA ON TUESDAY MORNING
WILL NOT HAVE AS MUCH MOISTURE OR ENERGY WITH IT AS THE LAST STORM
THAT MOVED THROUGH THE REGION FRIDAY NIGHT. AS SUCH...ONLY VERY
LIGHT AMOUNTS OF RAIN ARE EXPECTED TUESDAY. HOWEVER...THE COLD FRONT
WILL USHER IN BREEZY CONDITIONS ACROSS A BROAD AREA ON TUESDAY WITH
VERY WINDY CONDITIONS LIKELY IN THE LOWER COLUMBIA BASIN...THE
EASTERN COLUMBIA RIVER GORGE...THE KITTITAS AND YAKIMA VALLEYS...THE
LOWER COLUMBIA BASIN AND THE FOOTHILLS OF THE BLUE MOUNTAINS. A WIND
ADVISORY HAS BEEN ISSUED FOR THESE AREAS. FOR DETAILS...SEE PRODUCT
PDXNPWPDT (WMO HEADER WWUS76 KPDT). COLDER WEATHER WITH ISOLATED TO
SCATTERED MOUNTAIN RAIN OR SNOW SHOWERS WILL OCCUR ON WEDNESDAY. THE
NEXT UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION ON THURSDAY
AND FRIDAY FOR A CHANCE OF RAIN AND SNOW SHOWERS...MAINLY IN THE
MOUNTAINS. THIS WILL BE FOLLOWED BY HIGH PRESSURE PRODUCING DRY
CONDITIONS FOR THE UPCOMING WEEKEND.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED TUESDAY FOR VERY WINDY CONDITIONS.
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:
WWW.WRH.NOAA.GOV/PDT/CURRENTHAZARDS/HWO.HTML
ALL LETTERS IN THE ABOVE URL ARE LOWER CASE...EXCEPT THE H IN
CURRENTHAZARDS.
SPECIAL WEATHER STATEMENT
Issue Date: 130 PM PDT MON OCT 6 2008
Expiration: 515 AM PDT TUE OCT 07 2008
...BECOMING WINDY AND COLD TUESDAY AND TUESDAY NIGHT...
A STRONG COLD FRONT WILL BRING WINDY CONDITIONS OVER PORTIONS OF
SOUTH CENTRAL AND SOUTHEAST WASHINGTON AND EASTERN OREGON ON
TUESDAY. SUSTAINED WINDS OF 15 TO 30 MPH ARE EXPECTED...WITH SOME
LOCATIONS RECEIVING WINDS OF 25 TO 45 MPH. THE FRONT WILL ALSO
SPREAD COLDER AIR EAST OF THE CASCADES. LIGHT SNOW IS POSSIBLE ABOVE
5000 FEET WITH HEAVIER ACCUMULATIONS OVER THE HIGHER PEAKS OF THE
WASHINGTON CASCADES AND WALLOWA MOUNTAINS. ON TUESDAY NIGHT
TEMPERATURES WILL FALL INTO THE UPPER 20S TO UPPER 30S AS CLOUDS AND
WINDS DECREASE OVERNIGHT. SOME VALLEY AND BASIN LOCATIONS MAY HAVE
THE FIRST FROST OF THE SEASON.
FOR ADDITIONAL INFORMATION ON THE APPROACHING SYSTEM...REFER TO
OUR WEBSITE AT WEATHER.GOV/PENDLETON.
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