SPECIAL WEATHER STATEMENT
Issue Date: 359 AM PST WED DEC 9 2009
Expiration: 200 PM PST WED DEC 09 2009
...VERY COLD WEATHER WILL CONTINUE THIS WEEK OVER THE PACIFIC
NORTHWEST WITH A POSSIBILITY OF LIGHT WINTRY PRECIPITATION THIS
WEEKEND...
A MODIFIED ARCTIC AIR MASS OVER SOUTHWEST WASHINGTON AND NORTHWEST
OREGON WILL CONTINUE THIS WEEK. DAYTIME HIGH TEMPERATURES FOR THE
INLAND VALLEYS ARE EXPECTED TO REMAIN NEAR FREEZING TODAY AND
THURSDAY...WHILE NIGHTTIME LOWS WILL AGAIN DROP INTO THE TEENS.
MINIMUMS SHOULD BE SLIGHTLY WARMER THURSDAY NIGHT. LIGHT EAST
WINDS ARE LIKELY TO CONTINUE IN THE WESTERN COLUMBIA GORGE.
A GRADUAL WARMING TREND WILL DEVELOP BEGINNING FRIDAY AND CONTINUE
INTO THE WEEKEND AS MODEL GUIDANCE CONTINUES TO INDICATE A
TRANSITION OUT OF THE ARCTIC AIR MASS. THE NORTHERN EDGE OF A
PACIFIC WEATHER SYSTEM IS EXPECTED TO PUSH INTO THE REGION FRIDAY
NIGHT AND SATURDAY...AND MAY BRING A WINTRY MIX OF LIGHT
RAIN...FREEZING RAIN OR SNOW TO THE INTERIOR LOWLANDS SATURDAY
BEFORE TEMPERATURES WARM ABOVE FREEZING.
HAZARDOUS WEATHER OUTLOOK
Issue Date: 528 AM PST TUE DEC 8 2009
Expiration: 600 AM PST WED DEC 09 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
OREGON AND SOUTHWEST WASHINGTON.
.DAY ONE...TODAY AND TONIGHT
COLD ARCTIC AIR WILL CONTINUE OVER THE AREA TODAY AND TONIGHT.
EAST TO NORTHEAST WINDS WILL CONTINUE TO DECREASE...WITH ONLY
LOCAL GUSTS TO AROUND 20 MPH THIS MORNING. NEAR THE WESTERN
COLUMBIA RIVER GORGE EAST WINDS OF 15 TO 25 MPH WILL CONTINUE
TODAY THEN SLOWLY DROP OFF TONIGHT. TEMPERATURES WILL FALL INTO
THE TEENS IN MOST AREAS TONIGHT.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
COLD ARCTIC AIR WILL CONTINUE WEDNESDAY. CONDITIONS WILL SLOWLY
MODERATE THURSDAY AND FRIDAY...BUT WILL REMAIN COLDER THAN
NORMAL. FRIDAY NIGHT AND SATURDAY MORNING THERE IS A POSSIBILITY
OF SOME FREEZING RAIN INLAND AREAS AS A DISTURBANCE FROM THE
PACIFIC LIFTS NORTHEAST INTO THE REGION. THIS SYSTEM WILL SCOUR
OUT MOST OF THE COLDER AIR ON SATURDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER REPORTS OF COLD TEMPERATURES LIKELY WILL BE NEEDED
THROUGH THURSDAY.
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