High Wind Warning 3, NWS Seattle, WA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
330 PM PST SUN JAN 20 2008

.SYNOPSIS...COOL DRY AIR FROM CANADA WILL CONTINUE TO FILTER INTO
WESTERN WA THIS EVENING. TEMPERATURES OVERNIGHT WILL BE THE COLDEST
OF THE SEASON SO FAR FOR MOST AREAS AS LOWS DIP DOWN INTO THE TEENS
TO 20S. VERY WINDY CONDITIONS WILL PERSIST ACROSS PARTS OF THE NORTH
THROUGH EARLY MONDAY. DRY AND COOLER WEATHER WILL LAST THROUGH
WEDNESDAY. RAIN AND SNOW WILL RETURN TO THE AREA TOWARD THE END OF
THE WEEK.

&&

.SHORT TERM...WINDS ACROSS THE NORTH WERE PICKING UP THIS AFTERNOON
AS STRONG NE FLOW FUNNELED OUT OF THE FRASER RIVER VALLEY. AIRMASS
IS DEFINITELY DRIER WITH DEWPOINTS LOWERING DOWN INTO THE TEENS AT
KBLI. THE BELLINGHAM TO WILLIAMS LAKE GRADIENT PEAKED ABOUT -18 MB
WITH WINDS REACHING NEAR ADVISORY CRITERIA. WILL CONTINUE TO SEE
STRONGER WINDS NW INTERIOR...SAN JUANS AND WESTERN STRAIT OF JUAN DE
FUCA THROUGH THE EVENING SO WILL LET THE ADVISORY RUN. ALSO SEEING
PRETTY GOOD UPSLOPE FLOW ACROSS THE OLYMPICS AND ADDED A CHANCE OF
SNOW SHOWERS THROUGH THE EVENING. STRONG EASTERLY WINDS ON THE EAST
SIDE OF THE STATE ALSO BLOWING A FEW SNOW SHOWERS ACROSS THE CASCADE
CREST SO ALSO ADDED CHANCE SNOW POPS. OTHERWISE THE REST OF THE AREA
WILL BE DRY WITH SKIES BECOMING MOSTLY CLEAR OVERNIGHT.

THIS COOL DRY AIR INTRUSION FROM CANADA WILL DROP OUR TEMPS DOWN
THIS EVENING INTO THE TEENS TO 20S. THIS WILL LIKELY BE THE
COLDEST TEMPS THUS FAR THIS SEASON.

MARTIN LUTHER KING JR DAY...SUNNY BUT COOL WITH TEMPS STRUGGLING TO
GET OUT OF THE 30S FOR MOST AREAS. ONLY EXCEPTION IS THE COAST WHICH
MAY GET INTO LOWER 40S. TUESDAY MORNING MAY BE A FEW DEGREES COOLER
THAN MONDAY AS WINDS WILL BE LIGHTER. 33

.LONG TERM...DRY WEATHER ACROSS WESTERN WA WILL PERSIST THROUGH
WEDNESDAY...THEN THE REMAINDER OF THE EXTENDED FORECAST LOOKS RATHER
UNSETTLED. THE UPPER LEVEL TROUGH CURRENTLY OVER THE IDAHO AREA WILL
EVENTUALLY SHIFT SE AND PINCH OFF INTO A CUTOFF LOW OFF THE CA COAST
ON TUES. MODELS HAVE A TOUGH TIME DECIDING WHERE THIS LOW WILL HEAD
BEYOND WEDNESDAY...EITHER IT DRIFTS A BIT FURTHER SOUTH OR BACK
NORTH ALONG THE CA COAST. IT MAY EVEN PHASE INTO A DEVELOPING NW
TROUGH TO FORM ONE EXPANSIVE TROUGH ACROSS THE ENTIRE REGION. THE
GFS EVEN CUTS IT OFF AGAIN ON FRI. CONFIDENCE NOT TOO HIGH SO LEFT
THE MENTION OF SHOWERS IN THE FORECAST THROUGH SAT. ESPECIALLY
TRICKY FORECAST CONSIDERING TEMPS WILL STILL BE BELOW NORMAL WITH
LOWLAND SNOW SHOWERS POSSIBLE. 33

&&

.AVIATION...A 1044 MB HIGH PRESSURE CENTER OVER B.C. WILL CONTINUE
MOVING SOUTH...FORCING COLDER AND DRIER AIR OVER THE REGION. THIS
HIGH IS CONTRIBUTING TO A STRONG NE PRESSURE GRADIENT ACROSS WESTERN
WASHINGTON WITH FAIRLY STRONG WINDS ACROSS NORTHERN PARTS OF THE
STATE INTO MONDAY MORNING.

KSEA...CLOUDS THAT WOULD AFFECT FLIGHTS SHOULD NO LONGER BE AN
ISSUE...OTHER THAN A BRIEF BRUSH BY THROUGH 01Z. AFTER THAT CLEAR
SAILING INTO WED. THE ONLY OTHER ISSUE MAY BE WIND DIRECTION WHICH
WILL GENERALLY BE N-NE THROUGH MONDAY...HOWEVER LATE TONIGHT AND
EARLY MONDAY MORNING IT COULD BE DUE E. CERNIGLIA

&&

.MARINE...WINDS BLOWING AT GALE N INTERIOR ZONES AND THE CENTRAL
STRAIT WITH THE WEST ENTRANCE NOT FAR BEHIND. WINDS SLOW TO PICK UP
OVER THE CENTRAL PUGET SOUND AS FLOW IS MAINLY SHOOTING OUT THE
STRAIT...BUT NOW APPROACHING SCA AND WILL PICK UP A BIT MORE OVER
THE NEXT FEW HOURS. THESE STRONGER WINDS SHOULD CONTINUE WELL INTO
THE NIGHT BEFORE SLOWLY BEGINNING TO LET UP LATE TONIGHT AND EARLY
MONDAY MORNING. WINDS WILL GENERALLY BE 15 KT OR LESS BY MONDAY
EVENING OVER INLAND AREAS.

MODELS HAVING A HARD TIME WITH THE DETAILS IN THE EXTENDED (BEYOND
WED) TIMEFRAME SO LITTLE CONFIDENCE FOR THAT TIME PERIOD. BEGINNING
TO LOOK LIKE WINDS WILL BE A GOOD BIT LIGHTER THAN WHAT WAS IN THE
FORECAST THURSDAY ONWARD...SO HAVE CUT BACK ON THAT FOR NOW.
CERNIGLIA

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
.WIND ADVISORY NW INTERIOR...SAN JUANS...WESTERN STRAIT.
.GALE WARNING COAST...WEST ENTRANCE TO THE STRAIT...CENTRAL
  STRAIT...AND NORTHERN INLAND WATERS.
.SMALL CRAFT ADVISORY...EAST ENTRANCE TO THE STRAIT...ADMIRALTY
  INLET...AND PUGET SOUND AND HOOD CANAL.
.SMALL CRAFT ADVISORY GRAYS HARBOR FOR ROUGH BAR CONDITIONS.

WEATHER.GOV/SEATTLE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
746 PM PST SUN JAN 20 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0745 PM     HIGH SUST WINDS  7 WNW CLALLAM BAY       48.29N 124.41W
01/20/2008  M37 MPH          CLALLAM            WA   TRAINED SPOTTER

            LAST 1/2 HR SUSTAINED 30-40 MPH WITH GUSTS TO 51 MPH.

&&

CERNIGLIA