The Portland/Vancouver area will be experiencing some unsettled weather this afternoon. Even though the National Weather Service has not issued a "watch or warning", it did issue this Winter Weather Message:
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PORTLAND OR
349 PM PST TUE DEC 29 2009
LOWER COLUMBIA-GREATER PORTLAND METRO AREA- CENTRAL WILLAMETTE VALLEY- I-5 CORRIDOR IN COWLITZ COUNTY- GREATER VANCOUVER AREA- INCLUDING THE CITIES OF, ST. HELENS, HILLSBORO, OREGON CITY,
GRESHAM, SALEM, LONGVIEW, KELSO, BATTLE GROUND, WASHOUGAL
349 PM PST TUE DEC 29
..WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 PM PST THIS EVENING FOR THE GREATER PORTLAND AND VANCOUVER METRO AREA...THE LOWER COLUMBIA RIVER VALLEY...THE INTERSTATE 5 CORRIDOR IN COWLITZ COUNTY...AND THE CENTRAL WILLAMETTE VALLEY...
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT UNTIL 8 PM PST THIS EVENING.
* TIMING...SNOW WILL CONTINUE INTO THE EARLY EVENING HOURS BEFORE
TAPERING OFF OR CHANGING TO RAIN BY 8 PM THIS EVENING.
* SNOW WILL BE THE PRIMARY TYPE OF PRECIPITATION INITIALLY...
POSSIBLY CHANGING TO SLEET...FREEZING OR RAIN BEFORE TAPERING TO
RAIN SHOWERS LATER THIS EVENING.
* ACCUMULATIONS...WILL GENERALLY RANGE FROM 1 TO 4 INCHES ACROSS
THE ADVISORY AREA. THE BEST CHANCE FOR GREATER THAN 2 INCHES OF
ACCUMULATION WILL GENERALLY BE WEST OF THE INTERSTATE 5
CORRIDOR.
* THE SNOW WILL IMPACT THE EVENING RUSH HOUR COMMUTE...RESULTING
IN SLICK ROADWAYS AND REDUCED VISIBILITY UNTIL PRECIPITATION
TAPERS OFF OR CHANGES TO RAIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES.
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