HAZARDOUS WEATHER OUTLOOK
Issue Date: 743 PM PST FRI DEC 11 2009
Expiration: 700 AM PST SAT DEC 12 2009

Expires:200912121500;;
FLUS46 KPDT 120343 AAC
HWOPDT
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
742 PM PST FRI DEC 11 2009
UPDATED TO EXTEND WIND ADVISORY INTO SATURDAY
ORZ041>044-049-050-501>506-WAZ024-026>030-501-502-121500-
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-
742 PM PST FRI DEC 11 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.
.DAY ONE...TONIGHT
PACIFIC MOISTURE WILL CROSS MANY AREAS OF THE PACIFIC NORTHWEST
PRODUCING WINTRY PRECIPITATION BEGINNING TONIGHT AND LASTING
THROUGH MOST OF THE WEEKEND. A GENERAL DESCRIPTION OF EXPECTED
CONDITIONS WILL FOLLOW. FOR SPECIFIC DETAILS, PLEASE REFER TO THE
WINTER WEATHER STATEMENT /PDXWSWPDT UUWS46 KPDT/.
WINTER MIX
     EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON, EASTERN
     COLUMBIA RIVER GORGE OF WASHINGTON, EASTERN COLUMBIA RIVER
     GORGE OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON,
     NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES, JOHN DAY BASIN,
     OCHOCO-JOHN DAY HIGHLANDS
SNOW
     SOUTHERN BLUE MOUNTAINS OF OREGON
A MIX OF MAINLY SNOW AND SLEET IS EXPECTED TO BEGIN THIS EVENING
ACROSS THE MOST OF THE AREAS MENTIONED ABOVE. PRIMARILY SNOW IS
EXPECTED TO BEGIN TONIGHT ACROSS THE SOUTHERN BLUE MOUNTAINS.
STRONG WIND
     GRANDE RONDE VALLEY
STRONG PRESSURE GRADIENTS WILL KEEP WINDY TO VERY WINDY CONDITIONS
IN THE LOWER GRANDE RONDE VALLEY CONTINUING. AREAS BETWEEN AND
INCLUDING LADD AND PYLES CANYONS WILL HAVE THE HIGHEST WIND SPEEDS.
FOR DETAILS SEE THE WIND ADVISORY /PDXNPWPDT WWUS76/.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
WINTER MIX SATURDAY
     EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON, EASTERN
     COLUMBIA RIVER GORGE OF WASHINGTON, EASTERN COLUMBIA RIVER
     GORGE OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON,
     NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES, JOHN DAY
     BASIN, OCHOCO-JOHN DAY HIGHLANDS
SNOW SATURDAY
     LOWER COLUMBIA BASIN OF WASHINGTON, FOOTHILLS OF THE BLUE
     MOUNTAINS OF WASHINGTON, NORTHWEST BLUE MOUNTAINS, 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
SNOW SUNDAY
     LOWER COLUMBIA BASIN OF WASHINGTON, FOOTHILLS OF THE BLUE
     MOUNTAINS OF WASHINGTON, NORTHWEST BLUE MOUNTAINS, LOWER
     COLUMBIA BASIN OF OREGON, 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
ACCUMULATING SNOW IS EXPECTED TO BEGIN FALLING ACROSS THE LOWER
COLUMBIA BASIN, THE BLUE MOUNTAIN FOOTHILLS, AND THE MOUNTAINS OF
NORTHEAST OREGON AND SOUTHEAST WASHINGTON ON SATURDAY WITH
ACCUMULATIONS CONTINUING THROUGH MOST OF SUNDAY. THE BULK OF THE
SNOWFALL IS EXPECTED SATURDAY NIGHT THROUGH SUNDAY MORNING.
SNOW AND SLEET WILL CONTINUE SATURDAY ACROSS THE SOUTHERN WASHINGTON
CASCADES, THE COLUMBIA GORGE, ALONG WITH CENTRAL, NORTH CENTRAL AND
EAST CENTRAL OREGON. PRECIPITATION WILL GRADUALLY SHIFT EASTWARD AND
TRANSITION TO ALL SNOW BEGINNING SATURDAY AFTERNOON WITH SOME AREAS
CONTINUING TO SEE SNOW THROUGH SUNDAY.
STRONG WIND SATURDAY
     GRANDE RONDE VALLEY
VERY WINDY CONDITIONS WILL CONTINUE THROUGH MOST OF SATURDAY MAINLY
BETWEEN AND INCLUDING LADD AND PYLES CANYONS. PERIODS OF SNOWFALL
MAY RESULT IN LOCAL VISIBILITY REDUCTIONS DOWN TO 1 MILE OR LESS
ACROSS SOUTHERN VALLEY LOCATIONS.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL BE LIKELY.
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.
$$

WINTER WEATHER ADVISORY
Issue Date: 252 PM PST FRI DEC 11 2009
Expiration: 1000 AM PST SUN DEC 13 2009

...WINTER STORM EXPECTED TO IMPACT EASTERN OREGON AND SOUTH
CENTRAL AND SOUTHEAST WASHINGTON TONIGHT THROUGH SUNDAY...
.A PACIFIC STORM SYSTEM WILL SPREAD A WINTER MIX OF PRECIPITATION
OVER EASTERN OREGON AND SOUTH CENTRAL AND SOUTHEAST WASHINGTON
TONIGHT THROUGH SUNDAY. THE PRECIPITATION WILL BE MAINLY SNOW AND
SLEET.
ORZ504>506-120700-
/O.EXT.KPDT.WW.Y.0041.091212T0400Z-091213T1800Z/
NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN-
OCHOCO-JOHN DAY HIGHLANDS-
INCLUDING THE CITIES OF...CONDON...FOSSIL...SPRAY...JOHN DAY...
MONUMENT...DAYVILLE...LONG CREEK...MITCHELL...SENECA
252 PM PST FRI DEC 11 2009
...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING
TO 10 AM PST SUNDAY...
THE WINTER WEATHER ADVISORY IS NOW IN EFFECT FROM 8 PM THIS
EVENING TO 10 AM PST SUNDAY.
* PRECIPITATION WILL BEGIN THIS EVENING AND CONTINUE THROUGH
SUNDAY.
* THE MAIN EFFECT FROM THIS STORM SYSTEM WILL BE SNOW...ALTHOUGH
THERE IS A POTENTIAL FOR SLEET AT TIMES.
* 4 TO 6 INCHES OF SNOW ARE POSSIBLE LATE TONIGHT THROUGH SUNDAY
MORNING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE
AT WWW.WEATHER.GOV/PENDLETON.
$$

WINTER STORM WATCH
Issue Date: 150 PM PST THU DEC 10 2009
Expiration: 400 AM PST SUN DEC 13 2009

...WINTER STORM EXPECTED TO IMPACT CENTRAL OREGON FRIDAY NIGHT
THROUGH SATURDAY...
.A WEATHER SYSTEM MOVING INTO NORTHERN CALIFORNIA AND SOUTHERN
OREGON WILL SPREAD A MIX OF PRECIPITATION OVER CENTRAL OREGON LATE
FRIDAY THROUGH SATURDAY.
ORZ042-043-504>506-110700-
/O.NEW.KPDT.WS.A.0009.091212T0000Z-091213T1200Z/
NORTH CENTRAL OREGON-CENTRAL OREGON-
NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN-
OCHOCO-JOHN DAY HIGHLANDS-
INCLUDING THE CITIES OF...DUFUR...MADRAS...MAUPIN...MORO...BEND...
LA PINE...PRINEVILLE...REDMOND...CONDON...FOSSIL...SPRAY...
JOHN DAY...MONUMENT...DAYVILLE...LONG CREEK...MITCHELL...SENECA
150 PM PST THU DEC 10 2009
...WINTER STORM WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT FOR THE POTENTIAL OF A WINTERY MIX OF
PRECIPITATION...
THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A WINTER
STORM WATCH...WHICH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT.
* PRECIPITATION WILL BEGIN IN CENTRAL OREGON LATE FRIDAY AFTERNOON
THEN SPREAD INTO NORTH CENTRAL OREGON FRIDAY NIGHT.
* PRECIPITATION TYPE WILL BEGIN AS SNOW BUT THEN TURN TO A MIXTURE
OF WINTERY PRECIPITATION FRIDAY NIGHT AND SATURDAY INCLUDING
FREEZING RAIN AND SLEET.
* SNOW ACCUMULATIONS WILL BE 3 TO 6 INCHES IN THE HIGHER
ELEVATIONS AND LESS THAN 3 INCHES IN THE VALLEYS AND OTHER LOW
LYING AREAS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER STORM WATCH IS ISSUED WHEN THERE IS A POTENTIAL FOR
SIGNIFICANT SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT
TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS. FOR ADDITIONAL
WEATHER INFORMATION...CHECK OUR WEB SITE AT
WWW.WEATHER.GOV/PENDLETON.
$$