Storm Warning 5, NWS Seattle, WA

242 
WHUS76 KSEW 130511
MWWSEW

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
911 PM PST FRI DEC 12 2008

PZZ150-153-156-170-173-176-131100-
/O.CAN.KSEW.SR.W.0004.000000T0000Z-081213T1100Z/
/O.EXA.KSEW.GL.W.0074.000000T0000Z-081213T1100Z/
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND OUT 20 NM-
COASTAL WATERS FROM JAMES ISLAND TO POINT GRENVILLE OUT 20 NM-
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER OUT 20 NM-
COASTAL WATERS FROM CAPE FLATTERY TO JAMES ISLAND 20 TO 60 NM-
WATERS FROM JAMES ISLAND TO POINT GRENVILLE 20 TO 60 NM-
COASTAL WATERS FROM POINT GRENVILLE TO CAPE SHOALWATER 20 TO
60 NM-
911 PM PST FRI DEC 12 2008

...GALE WARNING IN EFFECT UNTIL 3 AM PST SATURDAY...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A GALE
WARNING...WHICH IS IN EFFECT UNTIL 3 AM PST SATURDAY. THE STORM
WARNING HAS BEEN CANCELLED. FOR DETAILS REFER TO THE COASTAL
WATERS FORECAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ133-131315-
/O.EXT.KSEW.GL.W.0075.000000T0000Z-081214T1800Z/
/O.CAN.KSEW.SR.W.0005.081213T1400Z-081214T0200Z/
NORTHERN INLAND WATERS INCLUDING THE SAN JUAN ISLANDS-
911 PM PST FRI DEC 12 2008

...GALE WARNING NOW IN EFFECT UNTIL 10 AM PST SUNDAY...
...STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE STORM
WARNING. THE GALE WARNING IS NOW IN EFFECT UNTIL 10 AM PST
SUNDAY. A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT
OR OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY RECOMMENDED
THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE HARBOR PRIOR
TO THE ONSET OF GALE CONDITIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ135-131200-
/O.CAN.KSEW.GL.W.0074.000000T0000Z-081213T1100Z/
/O.NEW.KSEW.SC.Y.0191.081213T0511Z-081213T1200Z/
PUGET SOUND AND HOOD CANAL-
911 PM PST FRI DEC 12 2008

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM PST SATURDAY...
...GALE WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A SMALL CRAFT
ADVISORY...WHICH IS IN EFFECT UNTIL 4 AM PST SATURDAY. THE GALE
WARNING HAS BEEN CANCELLED. FOR DETAILS REFER TO THE COASTAL
WATERS FORECAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY IS ISSUED WHEN WIND SPEEDS OF 21 TO
33 KNOTS OR A COMBINATION OF HAZARDOUS SEAS AND WIND SPEEDS OF
21 TO 33 KNOTS ARE LIKELY TO PRODUCE HAZARDOUS WAVE CONDITIONS TO
SMALL CRAFT. INEXPERIENCED MARINERS...ESPECIALLY THOSE OPERATING
SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

PZZ130-132-134-131100-
/O.EXT.KSEW.GL.W.0074.000000T0000Z-081213T1100Z/
WEST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-
EAST ENTRANCE U.S. WATERS STRAIT OF JUAN DE FUCA-ADMIRALTY INLET-
911 PM PST FRI DEC 12 2008

...GALE WARNING NOW IN EFFECT UNTIL 3 AM PST SATURDAY...
FOR DETAILS REFER TO THE COASTAL WATERS FORECAST...FZUS56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ131-131100-
/O.CON.KSEW.GL.W.0074.000000T0000Z-081213T1100Z/
CENTRAL U.S. WATERS STRAIT OF JUAN DE FUCA-
911 PM PST FRI DEC 12 2008

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PST SATURDAY...

FOR MORE DETAILS...REFER TO THE COASTAL WATERS FORECAST...FZUS56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A GALE WARNING MEANS WINDS OF 34 TO 47 KNOTS ARE IMMINENT OR
OCCURRING. OPERATING A VESSEL IN GALE CONDITIONS REQUIRES
EXPERIENCE AND PROPERLY EQUIPPED VESSELS. IT IS HIGHLY
RECOMMENDED THAT MARINERS WITHOUT THE PROPER EXPERIENCE SEEK SAFE
HARBOR PRIOR TO THE ONSET OF GALE CONDITIONS.

&&

$$

PZZ110-131315-
/O.CON.KSEW.RB.Y.0045.000000T0000Z-081214T0200Z/
GRAYS HARBOR BAR-
911 PM PST FRI DEC 12 2008

...SMALL CRAFT ADVISORY FOR ROUGH BAR REMAINS IN EFFECT UNTIL
6 PM PST SATURDAY...

FOR MORE DETAILS...REFER TO THE COASTAL WATERS FORECAST...FZUS56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY FOR ROUGH BAR CONDITIONS MEANS THAT WAVE
CONDITIONS ARE EXPECTED TO BE HAZARDOUS TO SMALL CRAFT IN OR NEAR
HARBOR ENTRANCES.

&&

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
322 PM PST FRI DEC 12 2008

.SYNOPSIS...A VERY DEEP 980 MB STORM SYSTEM ON THE NORTH WASHINGTON
COAST WILL MOVE EAST TO THE CENTRAL PUGET SOUND AREA EARLY THIS
EVENING THEN EAST OF THE CASCADES OVERNIGHT. COLD MODIFIED ARCTIC
AIR WILL FILTER OUT OF THE FRASER VALLEY EARLY SATURDAY THEN SURGE
SOUTH ACROSS THE AREA SATURDAY AFTERNOON AND SATURDAY NIGHT.
MOISTURE WILL OVERRUN THE ARCTIC AIR GIVING SHOW SHOWERS SATURDAY
NIGHT AND SUNDAY. DRY AND COLD CONDITIONS WILL PREVAIL MON AND TUE.
THERE IS A CHANCE OF SNOW MID WEEK AS A COLD DISTURBANCE DROPS
SOUTHEAST FROM ALASKA. DRY AND VERY COLD CONDITIONS WILL RETURN
TOWARD THE END OF THE WEEK.

&&

.SHORT TERM...A TIGHT...DEEP 980 MB LOW IS MOVING OVER THE OLYMPIC
MOUNTAINS AT THIS TIME AND WILL MOVE INTO THE PUGET SOUND AREA EARLY
THIS EVENING. WHILE MESOSCALE FEATURES AT THE LEE OF THE MOUNTAINS
WILL DESTROY THE CENTRAL CIRCULATION...IT APPEARS THAT A BENT BACK
OCCLUSION WILL GIVE QUITE WINDY CONDITIONS TO THE INTERIOR FOR THE
REMAINDER OF THIS AFTERNOON AND THROUGH THIS EVENING. HURRICANE
FORCE WEST TO NORTHWEST WINDS HAVE BEEN REPORTED AT DESTRUCTION
ISLAND WITH SOLID HIGH WIND ON THE COAST FROM KUIL TO KHQM. HIGH
WIND WARNINGS ARE IN EFFECT THERE AND WILL CONTINUE THROUGH AT LEAST
THE EVENING. A WIND ADVISORY HAS BEEN ISSUED FOR LAND AREAS OF THE
INTERIOR FROM THE SKAGIT-SNOHOMISH COUNTY LINE SOUTHWARD FOR SOUTH
WINDS 30 MPH GUST 45 MPH LATE THIS AFTERNOON AND EVENING. AS THE LOW
PASSES BY TO THE EAST EXPECT WIND ADVISORY WESTERLIES TO SURGE EAST
THROUGH THE STRAIT OF JUAN DE FUCA AND AFFECT THE AREAS ALONG THE
STRAIT OF JUAN DE FUCA AND ADMIRALTY INLET...PLACES LIKE PORT
ANGELES...PORT TOWNSEND...AND WHIDBEY ISLAND.

CONCERNING LOWLAND SNOW...CONFIDENCE IN THE DETAILS CONTINUES TO BE
POOR THRU THU. TEMPERATURES IN THE BENT BACK FEATURE HAVE FALLEN TO
AROUND 40 AT PLACES LIKE KUIL. SO EXPECT THE MARINE AIR TO BE MILD
ENOUGH AS IT FLOODS INLAND OVER THE NEXT FEW HOURS TO KEEP
PRECIPITATION IN THE INTERIOR THIS EVENING IN THE FORM OF RAIN BUT
WITH LOW SNOW LEVELS AROUND 1000-1200 FT. AS THE EVENING WEARS
ON...EXPECT SOME POSSIBLE SLUSHY ACCUMULATIONS OF 1 TO 3 INCHES OF
SNOW IN A PUGET SOUND CONVERGENCE ZONE OR REMNANT DEFORMATION ZONE
NORTH OF SEATTLE...AND IN THE EAST PUGET SOUND LOWLANDS ADJACENT TO
THE CASCADES. THE AREA OF DEFORMATION TO THE NORTH OF THE LOW ALSO
THREATENS TO GIVE HEAVIER PRECIPITATION RATES OVER THE NORTH INLAND
AREAS AND AREAS AROUND THE STRAIT...WITH COOL ENOUGH CONDITIONS TO
SUPPORT 1-3 INCHES OF SNOW. WILL MAINTAIN THE WINTER WEATHER
ADVISORY FOR THE NORTH INTERIOR TONIGHT...AND WILL AWAIT THE
FORMATION OF A CONVERGENCE ZONE OR A COOL ENOUGH DEFORMATION ZONE
LATER TONIGHT BEFORE ISSUING WINTER WEATHER ADVISORIES IN THE
LOWLANDS FURTHER SOUTH.

MAYBE WITH THE AID OF THE PASSING LOW...WILLIAMS LAKE TO BELLINGHAM
PRESSURE GRADIENTS WILL RAPIDLY INCREASE SATURDAY MORNING. EXPECT
MODIFIED ARCTIC AIR TO BEGIN FILTERING OUT OF THE FRASER AROUND 15Z
SAT THEN MERGE WITH LEFTOVER LOW LEVEL CONVERGENCE ZONE OR MID LEVEL
DEFORMATION ZONE MIDDAY. THIS AREA WILL WORK SOUTHWESTWARD AS AN
ARCTIC FRONT DURING THE AFTERNOON AND EVENING HOURS. MM5 SHOWS SOLID
GALE FORCE OUTFLOW THROUGH THE FRASER AND NORTHERN WATERS STARTING
SAT MORNING. WHILE WINDS IN THE PUGET SOUND AREA ARE NEVER THAT
STRONG...THEY ARE STILL SOLIDLY OVER 25 KT. WILL INDICATE WINDY
CONDITIONS DEVELOPING OVER THE CENTRAL SOUND ZONES SAT AND MORNING
HIGHS WITH TEMPERATURES GRADUALLY FALLING BELOW FREEZING BY
AFTERNOON. THE FREEZE WILL BE A FEW HOURS FASTER OVER THE NORTH
INTERIOR AND WILL OCCUR DURING THE EVENING OVER THE SOUTHWEST
INTERIOR AND ALONG THE COAST.

MODELS CONTINUE TO SHOW THE REDEVELOPMENT OF A 518 DAM 500 MB LOW
OFF CAPE FLATTERY SUN MORNING THEN DROP IT S THROUGH MON. WITH THIS
DEVELOPMENT...MOISTURE GETS STREWN OVER THE TOP OF DRY COLD AIR IN
THE INTERIOR. WILL IT SNOW IN THE LOWLANDS? PROBABLY...BUT AT THIS
TIME MODELS ARE SHOWING SHOWERY PRECIPITATION AND AMOUNTS IN THE
INCH OR TWO RANGE. IF A SMALL SYSTEM DEVELOPS OVER THE WARM PACIFIC
WATERS...ANYTHING GOES...SO CONFIDENCE IN THE COLD IS GOOD BUT IN
THE PRECIPITATION AMOUNTS IS LOW. ALBRECHT

.LONG TERM...LOOKS LIKE AN UNUSUALLY LONG STRETCH OF UNUSUALLY COLD
WEATHER NEXT WEEK. BOTH THE GFS AND ECMWF KEEP A LONGWAVE TROUGH
CARVED OUT OVER THE WRN U.S. WITH NORTH-NORTHEAST FLOW ALOFT
BRINGING IN REINFORCING COLD CONTINENTAL POLAR AIR MASSES. THERE IS
FAIRLY GOOD AGREEMENT WITH THE EXTENDED MODELS IN BRINGING A
SHORTWAVE DOWN THE B.C. AND PAC NW COAST ON WED AND WED NIGHT. GIVEN
THE COLD AIR MASS IN PLACE...SNOW WOULD LIKELY RESULT DOWN TO SEA
LEVEL...EXCEPT ALONG THE IMMEDIATE COAST.       HANER

&&

.AVIATION...DELAYED.

&&

.MARINE...DELAYED.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...WINTER STORM WARNING FOR THE OLYMPICS AND CASCADES.
    .HIGH WIND WARNING FOR THE NORTH AND CENTRAL COAST.
    .HIGH WIND WATCH THROUGH SATURDAY AFTERNOON FOR WESTERN WHATCOM
     COUNTY...THE SAN JUAN ISLANDS...AND WESTERN SKAGIT COUNTIES.
    .WIND ADVISORY STRAIT OF JUAN DE FUCA AND ADMIRALTY INLET
     ZONES...AND FOR THE LOWLAND INLAND ZONES EVERETT SOUTH.
    .WINTER WEATHER ADVISORY STRAIT OF JUAN DE FUCA ZONES...
     SAN JUAN ISLANDS...NORTHWEST INTERIOR...AND WESTERN
     WHATCOM COUNTY.
    .COASTAL FLOOD ADVISORY...EAST STRAIT...NORTHWEST INTERIOR...
     AND GREATER PUGET SOUND/HOOD CANAL AREA.
PZ...STORM WARNING IN EFFECT FOR THE COASTAL WATERS NORTH INLAND
WATERS.
    .GALE WARNING IN EFFECT FOR THE REMAINING WATERS.
    .SMALL CRAFT ADVISORY IN EFFECT FOR ROUGH GRAYS HARBOR
     BAR CONDITIONS.

WEATHER.GOV/SEATTLE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SEATTLE WA
1118 AM PST FRI DEC 12 2008

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

1114 AM     HIGH SUST WINDS  4 ENE VAIL              46.86N 122.58W
12/12/2008  M45 MPH          THURSTON           WA   TRAINED SPOTTER

            GUST TO 61 MPH. POWER FLICKERING AND TREETOPS ARE
            SNAPPING.

&&

GRUB