HAZARDOUS WEATHER OUTLOOK Issue Date: 700 AM PST FRI DEC 11 2009 Expiration: 615 AM PST SAT DEC 12 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.
.DAY ONE...TODAY AND TONIGHT
WINTER MIX TONIGHT
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
SNOW TONIGHT
JOHN DAY BASIN, OCHOCO-JOHN DAY HIGHLANDS
STRONG WIND TODAY AND THIS EVENING
GRANDE RONDE VALLEY
A MIX OF WINTERY PRECIPITATION IS EXPECTED TO IMPACT A LARGE PORTION
OF THE FORECAST AREA TONIGHT. CHECK THE LATEST FORECAST FOR MORE
DETAILS.
A WINTER WEATHER ADVISORY IS IN EFFECT FOR TONIGHT THROUGH SATURDAY
NIGHT FOR A WINTERY MIX OF SNOW AND SLEET AND A CHANCE OF FREEZING
RAIN IN CENTRAL...NORTH CENTRAL AND EAST CENTRAL OREGON. A WINTER
WEATHER WATCH IS IN EFFECT FROM LATE THIS EVENING THROUGH SATURDAY
NIGHT FOR THE EASTERN COLUMBIA RIVER GORGE AND THE EAST SLOPES OF
THE SOUTHERN WASHINGTON CASCADES. FOR DETAILS SEE PRODUCT PDXWSWPDT.
STRONG PRESSURE GRADIENTS WILL KEEP WINDY TO VERY WINDY CONDITIONS
IN THE LOWER GRANDE RONDE VALLEY TODAY AND INTO THIS EVENING. THE
LADD AND PYLES CANYONS WILL HAVE THE HIGHER WIND SPEEDS. FOR DETAILS
SEE PRODUCT PDXNPWPDT.
.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY
WINTER MIX SATURDAY AND SATURDAY NIGHT
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,
FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON, NORTHERN WHEELER
AND SOUTHERN GILLIAM COUNTIES, JOHN DAY BASIN, OCHOCO-JOHN DAY
HIGHLANDS
SNOW SATURDAY AND SATURDAY NIGHT
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,
NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE MOUNTAINS OF
OREGON
SNOW SUNDAY
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON, NORTHWEST BLUE
MOUNTAINS, 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
A DISTURBANCE MOVING OUT OF CANADA INTO THE PACIFIC NORTHWEST WILL
KEEP SNOW AND AREAS OF A WINTERY MIX OF SNOW...SLEET AND FREEZING
RAIN IN THE FORECAST AREA FOR UNSETTLED WINTER WEATHER THROUGH THE
WEEKEND. TRAVELERS SHOULD BE PREPARED FOR WINTER DRIVING CONDITIONS
IN CENTRAL AND NORTH CENTRAL OREGON AND THE BLUE MOUNTAINS OVER THE
WEEKEND. CHECK THE LATEST FORECAST FOR MORE DETAILS.
A WINTER WEATHER WATCH IS IN EFFECT FROM EARLY SATURDAY MORNING
THROUGH SUNDAY MORNING FOR THE FOOTHILLS OF THE BLUE MOUNTAINS. FOR
DETAILS SEE PRODUCT PDXWSWPDT.
.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.
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