High Wind in Washington, December 1, 2001

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
900 AM PST SAT DEC 1 2001

...REMOVED HIGH WIND WARNING FROM NORTH INTERIOR AND MINOR TIDAL
OVERFLOW FOR PUGET SOUND IN WARNINGS LIST...

.SYNOPSIS...VERY WINDY AND SHOWERY CONDITIONS WILL OCCUR ACROSS
WESTERN WASHINGTON TODAY AS A DEEP LOW PRESSURE SYSTEM MOVES INTO
SOUTHERN BRITISH COLUMBIA. CONDITIONS WILL THEN IMPROVE LATE TONIGHT
THROUGH SUNDAY BEFORE ANOTHER LOW APPROACHES NORTHWEST OREGON SUNDAY
NIGHT...WITH AN INCREASING CHANCE OF RAIN ACROSS THE AREA...AND LOCAL
WET SNOW IN THE INTERIOR LOWLANDS.

.MORNING UPDATE...A DEEP 975 MB LOW IS APPROACHING VANCOUVER ISLAND
THIS MORNING WITH VERY WINDY CONDITIONS ACROSS THE NORTHWEST
INTERIOR. BLAINE HARBOR WAS GUSTING TO 68 KT AT 7 AM. EXPECT PEAK IN
WINDS HAVE OCCURRED AND WILL LOWER HIGH WIND WARNING IN MORNING
UPDATE.

CURRENT HIGH WIND WATCHES ALSO NEED TO BE DEALT WITH NOW. BOTH ARE
TOUGH. COASTAL WINDS WILL PEAK NEAR CRITERIA IN A COUPLE HOURS AND
THEN SUBSIDE MIDDAY TO ONLY RISE AGAIN IMMEDIATELY BEHIND BENT BACK
OCCLUSION THIS AFTERNOON. WITH NEW MODELS CARRYING SYSTEM A BIT
FARTHER SOUTH AND WITH ELONGATION OF BENT BACK TROUGH WILL GO AHEAD
AND CANCEL THE WATCHES FOR THE COAST AND NORTHWEST INTERIOR.

FOR WATCH IN NORTH INTERIOR EXPECT SURGE OF WESTERLIES DOWN STRAIT
THIS EVENING THAT MIGHT GET NEAR CRITERIA FOR AN HOUR OR TWO BUT WITH
NORTHWEST SURGE EXPECTED DOWN STRAIT OF GEORGIA WILL ALSO CANCEL THAT
WATCH.

AS FAR AS SNOW IN THE MOUNTAINS...THE FLOW WILL REMAIN SOUTHWESTERLY
THROUGH THE DAY AS THE BENT BACK OCCLUSION APPROACHES COAST SO FEEL
CONTINUED SNOW ADVISORY FOR MOUNTAINS WILL HANDLE IT ALTHOUGH VERY
CLOSE TO HEAVY SNOW WARNING CRITERIA.

UIL +94  SEA 994  OLM 995  COLMAN

.SEW...SNOW ADVISORY TODAY OLYMPICS AND W SLOPES CASCDS/PASSES.
      .GALE WARNING...ALL WATERS.
      .HEAVY SURF ADVISORY COAST.
      .MINOR TIDAL OVERFLOW CENTRAL COAST.
.KATX...VCP21/CSR21...OPERATIONAL.