SPECIAL WEATHER STATEMENT
Issue Date: 652 AM PST SAT DEC 05 2009
Expiration: 1100 PM PST SAT DEC 05 2009

...SIGNIFICANTLY COLDER TEMPERATURES CAN BE EXPECTED SUNDAY INTO
THE COMING NEXT WEEK...
AN ARCTIC AIR MASS WILL INVADE THE PACIFIC NORTHWEST TONIGHT AND
SUNDAY...AND REMAIN OVER THE AREA THROUGH THE MIDDLE OF NEXT
WEEK. HIGH AND LOW TEMPERATURES WILL BE 15 TO 20 DEGREES BELOW
NORMAL...WITH THE COLDEST OF THESE DAYS EXPECTED TO BE MONDAY AND
TUESDAY. ALL AREAS CAN EXPECT A CHANCE OF SNOW SHOWERS FROM TIME
TO TIME...AS TEMPERATURES WILL STRUGGLE TO REACH FREEZING AT BEST
IN THE LOWEST ELEVATIONS. COLD AIR TRAPPED IN THE COLUMBIA BASIN
AND SURROUNDING VALLEYS WILL LIKELY PERSIST THROUGH THE LATER
PART OF NEXT WEEK...WHILE THE NEXT WEATHER SYSTEM IS EXPECTED TO
ARRIVE. AS A RESULT THERE MAY BE A WINTRY MIX OF PRECIPITATION BY
THE END OF THE COMING WEEK. PLEASE MONITOR THE LATEST FORECASTS
AND STATEMENTS FROM THE NATIONAL WEATHER SERVICE OR YOUR LOCAL
MEDIA OUTLETS FOR MORE DETAILED INFORMATION.
$$

HAZARDOUS WEATHER OUTLOOK
Issue Date: 512 AM PST SAT DEC 05 2009
Expiration: 500 AM PST SUN DEC 06 2009

Expires:200912061300;;
FLUS46 KPDT 051310
HWOPDT
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
510 AM PST SAT DEC 5 2009
ORZ041>044-049-050-501>506-WAZ024-026>030-501-502-061300-
EASTERN COLUMBIA RIVER GORGE OF OREGON-NORTH CENTRAL OREGON-
CENTRAL OREGON-LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-
WALLOWA COUNTY-FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN-
OCHOCO-JOHN DAY HIGHLANDS-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS-
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON-
EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON-
510 AM PST SAT DEC 5 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.
.DAY ONE...TODAY AND TONIGHT
SNOW
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, KITTITAS VALLEY,
     YAKIMA VALLEY, NORTHWEST BLUE MOUNTAINS, GRANDE RONDE VALLEY,
     WALLOWA COUNTY, NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN
     BLUE MOUNTAINS OF OREGON, JOHN DAY BASIN, OCHOCO-JOHN DAY
     HIGHLANDS
AN ARCTIC COLD FRONT WILL MOVE ACROSS THE REGION TODAY AND TONIGHT
BRINGING MUCH COLDER AIR TO THE FORECAST AREA. THERE WILL BE SOME
LIGHT SNOW ACROSS THE CWA WITH LIGHT ACCUMULATIONS IN SOME PLACES.
THE LOCATIONS LISTED ABOVE CAN EXPECT A COATING TO PERHAPS AN INCH
OF NEW SNOW IN THE LOWER ELEVATIONS WITH UP TO SEVERAL INCHES OVER
THE MOUNTAINS...ESPECIALLY THE BLUE AND WALLOWA MOUNTAINS AND THE
EAST SLOPES OF THE SOUTHERN AND CENTRAL WASHINGTON CASCADES. AT THIS
TIME...ADVISORY OR WARNING CRITERIA AMOUNTS OF SNOW ARE NOT
EXPECTED. VERY COLD TEMPERATURES ARE EXPECTED TO BEGIN FILTERING
INTO THE REGION FROM THE NORTH LATE TODAY AND TONIGHT.
.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
EXTREME COLD SUNDAY
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, EASTERN COLUMBIA RIVER
     GORGE OF WASHINGTON, KITTITAS VALLEY, YAKIMA VALLEY, LOWER
     COLUMBIA BASIN OF WASHINGTON, FOOTHILLS OF THE BLUE MOUNTAINS
     OF WASHINGTON, NORTHWEST BLUE MOUNTAINS, EASTERN COLUMBIA
     RIVER GORGE OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON,
     LOWER COLUMBIA BASIN OF OREGON, GRANDE RONDE VALLEY, WALLOWA
     COUNTY, FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON, NORTHERN
     BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF OREGON,
     NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES, JOHN DAY
     BASIN, OCHOCO-JOHN DAY HIGHLANDS
EXTREME COLD MONDAY
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, EASTERN COLUMBIA RIVER
     GORGE OF WASHINGTON, KITTITAS VALLEY, YAKIMA VALLEY, LOWER
     COLUMBIA BASIN OF WASHINGTON, FOOTHILLS OF THE BLUE MOUNTAINS
     OF WASHINGTON, NORTHWEST BLUE MOUNTAINS, EASTERN COLUMBIA
     RIVER GORGE OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON,
     LOWER COLUMBIA BASIN OF OREGON, GRANDE RONDE VALLEY, WALLOWA
     COUNTY, FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON, NORTHERN
     BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF OREGON,
     NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES, JOHN DAY
     BASIN, OCHOCO-JOHN DAY HIGHLANDS
EXTREME COLD TUESDAY
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, EASTERN COLUMBIA RIVER
     GORGE OF WASHINGTON, KITTITAS VALLEY, YAKIMA VALLEY, LOWER
     COLUMBIA BASIN OF WASHINGTON, FOOTHILLS OF THE BLUE MOUNTAINS
     OF WASHINGTON, NORTHWEST BLUE MOUNTAINS, EASTERN COLUMBIA
     RIVER GORGE OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON,
     LOWER COLUMBIA BASIN OF OREGON, GRANDE RONDE VALLEY, WALLOWA
     COUNTY, FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON, NORTHERN
     BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF OREGON,
     NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES, JOHN DAY
     BASIN, OCHOCO-JOHN DAY HIGHLANDS
VERY COLD EARLY SEASON ARCTIC AIR IS EXPECTED TO SPILL INTO THE
REGION FROM THE NORTH AND NORTHEAST OVER THE NEXT SEVERAL DAYS. ALL
AREAS OF THE CWA WILL EXPERIENCE WELL BELOW NORMAL TEMPERATURES WITH
MAXIMUM READINGS NOT RISING ABOVE FREEZING FOR AT LEAST SUNDAY
THROUGH THE FIRST HALF OF THE COMING NEXT WEEK. LATER IN THE WEEK
TEMPERATURES WILL BEGIN TO MODERATE AS THE FLOW ALOFT GRADUALLY
BECOMES NORTHWEST AND THEN WESTERLY AGAIN. LATE IN THE WEEK PACIFIC
WEATHER DISTURBANCES WILL BRING VARYING AMOUNTS OF PRECIPITATION
WITH POSSIBLY A WINTRY MIX OF SNOW SLEET AND FREEZING RAIN AS WARMER
MOIST AIR RUNS OVER THE DOME OF ARCTIC AIR THAT WILL BE IN PLACE
OVER THE PACIFIC NORTHWEST. THAT SITUATION WILL BE MONITORED CLOSELY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED.
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.
$$