News

Cold and snow due in western Washington again Monday

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SEATTLE WA
549 AM PST SUN NOV 21 2010

WAZ001-503>519-220030-
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-SOUTHWEST INTERIOR-
EAST PUGET SOUND LOWLANDS-WESTERN SKAGIT COUNTY-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-ADMIRALTY INLET AREA-
HOOD CANAL AREA-LOWER CHEHALIS VALLEY AREA-OLYMPICS-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
NORTH COAST-CENTRAL COAST-WEST SLOPES NORTHERN CASCADES AND PASSES-
WEST SLOPES CENTRAL CASCADES AND PASSES-
549 AM PST SUN NOV 21 2010

...COLDER WEATHER FOR THE FIRST PART OF THE WEEK...
...SNOW POSSIBLE TONIGHT AND AGAIN MONDAY AFTERNOON AND EVENING
MAINLY FOR THE SOUTHWEST INTERIOR...

A PAIR OF UPPER LEVEL WEATHER SYSTEMS WILL BRING THE POSSIBILITY OF
SNOW TO WESTERN WASHINGTON IN THE NEXT COUPLE OF DAYS. THE FIRST
SYSTEM WILL MOVE INLAND OVER SOUTHWEST WASHINGTON AND NORTHWESTERN
OREGON LATER THIS AFTERNOON INTO TONIGHT WITH A CHANCE OF SNOW
SHOWERS OVER THE SOUTHWEST INTERIOR. THE MAIN EFFECT OF THIS SYSTEM
FOR MOST OF THE AREA WILL BE TO DRAW DOWN FROM BRITISH COLUMBIA
ANOTHER SHOT OF COLD AIR BEGINNING LATER TONIGHT INTO MONDAY.
NORTHERLY WINDS OVER THE NORTHWEST INTERIOR WILL DECREASE TODAY BUT
PICK UP ONCE AGAIN ON MONDAY INTO THE 20 TO 30 MPH RANGE.

A SECOND WEATHER SYSTEM WILL FOLLOW A SIMILAR TRACK TO THE ONE FOR
LATER TODAY WITH THE POSSIBILITY OF THE SYSTEM MOVING INLAND A
LITTLE FURTHER NORTH MONDAY AFTERNOON INTO MONDAY EVENING. THIS
SYSTEM WILL BE STRONGER AND HAS A GREATER POTENTIAL FOR PRODUCING
SNOW OVER THE SOUTHWEST INTERIOR LATER MONDAY AFTERNOON INTO MONDAY
EVENING WITH THE CHANCE FOR SNOW EXTENDING AS FAR NORTH AS THE
SEATTLE AREA. THE SYSTEM WILL SHIFT EAST OF THE CASCADES MONDAY
EVENING WITH A COLD AIR MASS OVER WESTERN WASHINGTON. WITH THE
CLEARING SKIES LOWS TUESDAY MORNING WILL BE WELL BELOW FREEZING WITH
THE COLDER LOCATIONS DROPPING DOWN INTO THE TEENS.

THE MOST LIKELY SCENARIO IS ANY ACCUMULATING SNOW WILL BE CONFINED
TO THE SOUTHWEST INTERIOR IN THE NEXT COUPLE OF DAYS.  STAY TUNED

FOR UPDATED FORECASTS AS CONDITIONS CHANGE.

National Weather Service link

 

 


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