Wind Advisory 11, NWS Seattle, WA

000 
WWUS76 KSEW 181855
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1155 AM PDT THU OCT 18 2007

.AN INTENSIFYING LOW PRESSURE SYSTEM 130 MILES OFF THE WASHINGTON
COAST IS FORECAST TO MOVE EAST NORTHEAST REACHING THE NORTHERN OLYMPIC
PENINSULA LATE THIS AFTERNOON. THE LOW WILL CONTINUE TO TRACK
NORTHEAST INTO THE INTERIOR OF BRITISH COLUMBIA THIS EVENING. THE
STRONGEST WINDS ASSOCIATED WITH THIS SYSTEM ARE ANTICIPATED ALONG
THE COAST AND NORTH INTERIOR TODAY. LESS INTENSE WINDS ARE
EXPECTED ELSEWHERE IN WESTERN WASHINGTON AT THIS TIME. WINDS WILL
DECREASE THIS EVENING ACROSS THE AREA AS THIS SYSTEM EXITS THE REGION.

WAZ516-517-190200-
/O.EXT.KSEW.HW.W.0004.000000T0000Z-071019T0200Z/
NORTH COAST-CENTRAL COAST-
1155 AM PDT THU OCT 18 2007

...HIGH WIND WARNING NOW IN EFFECT UNTIL 7 PM PDT THIS EVENING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 7 PM PDT THIS
EVENING. 

EAST TO SOUTHEAST WINDS ARE EXPECTED EARLY THIS AFTERNOON TO 30 TO 40
MPH WITH GUSTS TO 60 MPH. THE WINDS WILL SHIFT TO SOUTHWEST TO
WEST LATE THIS AFTERNOON BUT WILL STILL BE IN THE 30 TO 40 MPH
RANGE. THE WINDS WILL DECREASE THIS EVENING.

HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES...AND DAMAGE SOME
STRUCTURES.

$$

WAZ001-503-506-510-190200-
/O.EXT.KSEW.HW.W.0004.000000T0000Z-071019T0200Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
1155 AM PDT THU OCT 18 2007

...HIGH WIND WARNING NOW IN EFFECT UNTIL 7 PM PDT THIS EVENING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 7 PM PDT THIS
EVENING. 

STRONG WEST TO SOUTHWEST WINDS WILL CONTINUE ACROSS THE NORTH
INTERIOR THROUGH THE EARLY EVENING HOURS. SUSTAINED WIND SPEEDS WILL
BE IN THE 30 TO 40 MPH RANGE WITH GUSTS UP TO 60 MPH. LATE THIS
AFTERNOON...STRONG WESTERLY WINDS WILL ALSO INCREASE IN THE
STRAIT OF JUAN DE FUCA WHICH MAY AFFECT THE ADMIRALTY INLET AREA.
WINDS WILL DECREASE THIS EVENING.

HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES...AND DAMAGE SOME
STRUCTURES.

$$

WAZ504-505-507>509-511-512-514-515-190200-
/O.CON.KSEW.WI.Y.0011.071018T2100Z-071019T0600Z/
SOUTHWEST INTERIOR-EAST PUGET SOUND LOWLANDS-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-EASTERN STRAIT OF JUAN DE FUCA-
WESTERN STRAIT OF JUAN DE FUCA-
1155 AM PDT THU OCT 18 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. 

WINDS WILL INCREASE OVER MOST OF THE LOWLANDS THIS AFTERNOON
RIGHT AHEAD OF THE INCOMING WEATHER SYSTEM. SOUTH WINDS IN THE
10 TO 20 MPH RANGE WILL INCREASE TO 20 TO 30 MPH WITH GUSTS TO
40 MPH BETWEEN 2 PM AND 8 PM. STRONGER WINDS MAY OCCUR ACROSS HOOD
CANAL WITH SPEEDS AT 25 TO 35 MPH WITH GUSTS TO 50 MPH. THE WINDS
WILL DECREASE SIGNIFICANTLY AFTER 11 PM.

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR
GUSTS OF 45 TO 57 MPH ARE LIKELY. WINDS THIS STRONG CAN SNAP
SMALL TREE BRANCHES...TOPPLE SMALL OR SHALLOW-ROOTED TREES...AND
CAUSE LOCAL POWER OUTAGES. MOTORISTS...ESPECIALLY THOSE WITH HIGH
PROFILE VEHICLES...SHOULD ALSO BE ALERT FOR SUDDEN...STRONG CROSS
WINDS.

$$

33

000 
WWUS76 KSEW 182114
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
214 PM PDT THU OCT 18 2007

.AN INTENSIFYING LOW PRESSURE SYSTEM OFF THE WASHINGTON COAST IS
FORECAST TO MOVE EAST NORTHEAST REACHING THE NORTHERN OLYMPIC
PENINSULA LATE THIS AFTERNOON. THE LOW WILL CONTINUE TO TRACK
NORTHEAST INTO THE INTERIOR OF BRITISH COLUMBIA THIS EVENING. THE
STRONGEST WINDS ASSOCIATED WITH THIS SYSTEM ARE ANTICIPATED ALONG
THE COAST AND NORTH INTERIOR TODAY. LESS INTENSE WINDS ARE
EXPECTED ELSEWHERE IN WESTERN WASHINGTON AT THIS TIME. WINDS WILL
DECREASE THIS EVENING ACROSS THE AREA AS THIS SYSTEM EXITS THE
REGION.

WAZ516-517-190200-
/O.CON.KSEW.HW.W.0004.000000T0000Z-071019T0200Z/
NORTH COAST-CENTRAL COAST-
214 PM PDT THU OCT 18 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PDT THIS
EVENING. 

EAST TO SOUTHEAST WINDS ARE EXPECTED EARLY THIS AFTERNOON TO
30 TO 40 MPH WITH GUSTS TO 60 MPH. THE WINDS WILL SHIFT TO
SOUTHWEST TO WEST LATE THIS AFTERNOON BUT WILL STILL BE IN THE
30 TO 40 MPH RANGE. THE WINDS WILL DECREASE THIS EVENING.

HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES...AND DAMAGE SOME
STRUCTURES.

$$

WAZ001-503-506-510-190200-
/O.CON.KSEW.HW.W.0004.000000T0000Z-071019T0200Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
214 PM PDT THU OCT 18 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PDT THIS
EVENING...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PDT THIS
EVENING. 

STRONG WEST TO SOUTHWEST WINDS WILL CONTINUE ACROSS THE NORTH
INTERIOR THROUGH THE EARLY EVENING HOURS. SUSTAINED WIND SPEEDS
WILL BE IN THE 30 TO 40 MPH RANGE WITH GUSTS UP TO 60 MPH. LATE
THIS AFTERNOON...STRONG WESTERLY WINDS WILL ALSO INCREASE IN THE
STRAIT OF JUAN DE FUCA WHICH MAY AFFECT THE ADMIRALTY INLET AREA.
WINDS WILL DECREASE THIS EVENING.

HIGH WINDS CAN TOPPLE TREES...DOWN POWER LINES...AND DAMAGE SOME
STRUCTURES.

$$

WAZ504-505-507>509-511-512-514-515-190200-
/O.CON.KSEW.WI.Y.0011.000000T0000Z-071019T0600Z/
SOUTHWEST INTERIOR-EAST PUGET SOUND LOWLANDS-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-EASTERN STRAIT OF JUAN DE FUCA-
WESTERN STRAIT OF JUAN DE FUCA-
214 PM PDT THU OCT 18 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING. 

STRONG SOUTH TO SOUTHWEST WINDS WILL CONTINUE ACROSS THE AREA
THROUGH THE REST OF THE AFTERNOON AND INTO THE EVENING. EXPECT
SUSTAINED WIND SPEEDS AT 25 TO 35 MPH WITH GUSTS UP TO 55 MPH. THE
WINDS WILL DECREASE SIGNIFICANTLY AFTER 11 PM.

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS OF 30 TO 39 MPH OR
GUSTS OF 45 TO 57 MPH ARE LIKELY. WINDS THIS STRONG CAN SNAP
SMALL TREE BRANCHES...TOPPLE SMALL OR SHALLOW-ROOTED TREES...AND
CAUSE LOCAL POWER OUTAGES. MOTORISTS...ESPECIALLY THOSE WITH HIGH
PROFILE VEHICLES...SHOULD ALSO BE ALERT FOR SUDDEN...STRONG CROSS
WINDS.

$$

000 
WWUS76 KSEW 190157
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
657 PM PDT THU OCT 18 2007

.THE LOW PRESSURE SYSTEM THAT CAUSED THE STRONG WINDS TODAY HAS
MOVED INTO EXTREME SOUTHERN CANADA AND WILL CONTINUE TO MOVE TO
THE NORTHEAST AND WEAKEN. THE STRONGEST WINDS HAVE PASSED FOR
SOUTHERN WASHINGTON WHILE STRONG WINDS WILL CONTINUE FOR ANOTHER
COUPLE OF HOURS OVER NORTHERN AREAS. THE WIND WILL QUICKLY EASE UP
AFTER 9 OR 10 PM THIS EVENING. 

WAZ001-503-506-510-190500-
/O.CAN.KSEW.HW.W.0004.000000T0000Z-071019T0200Z/
/O.EXB.KSEW.WI.Y.0011.000000T0000Z-071019T0500Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
657 PM PDT THU OCT 18 2007

...WIND ADVISORY IN EFFECT UNTIL 10 PM PDT THIS EVENING...
...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS DOWNGRADED THE HIGH
WIND WARNING TO A WIND ADVISORY WHICH WILL BE IN EFFECT THROUGH 10
PM THIS EVENING. 

THE STORM CENTER PASSED ACROSS THE BELLINGHAM AREA BETWEEN 5 AND 6
PM THIS EVENING. A STRONG SURGE OF WIND IS POSSIBLE DOWN THE
STRAIT OF JUAN DE FUCA...WITH SUSTAINED WINDS OF 25 TO 35 MPH AND
GUSTS AROUND 45 MPH THROUGH 9 OR 10 PM. AFTER THAT THE WINDS WILL
QUICKLY SUBSIDE AS THE STORM CONTINUES TO WEAKEN AND MOVE FURTHER
EAST. 

WINDS THIS STRONG CAN SNAP SMALL TREE BRANCHES...TOPPLE SMALL OR
SHALLOW-ROOTED TREES...AND CAUSE LOCAL POWER OUTAGES.
MOTORISTS...ESPECIALLY THOSE WITH HIGH PROFILE VEHICLES...SHOULD
ALSO BE ALERT FOR SUDDEN...STRONG CROSS WINDS.

$$

WAZ516-517-190300-
/O.CAN.KSEW.HW.W.0004.000000T0000Z-071019T0200Z/
NORTH COAST-CENTRAL COAST-
657 PM PDT THU OCT 18 2007

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE HIGH
WIND WARNING. 

THE LOW HAS PASSED TO THE NORTHEAST OF THE AREA AND THE THREAT OF
HIGH WINDS ALONG THE COAST HAS ENDED. 

$$

WAZ504-505-507>509-511-512-514-515-190500-
/O.EXT.KSEW.WI.Y.0011.000000T0000Z-071019T0500Z/
SOUTHWEST INTERIOR-EAST PUGET SOUND LOWLANDS-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-EASTERN STRAIT OF JUAN DE FUCA-
WESTERN STRAIT OF JUAN DE FUCA-
657 PM PDT THU OCT 18 2007

...WIND ADVISORY NOW IN EFFECT UNTIL 10 PM PDT THIS EVENING...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 10 PM PDT THIS EVENING. 

THE LOW CENTER PASSED BY TO THE NORTHEAST AND WINDS HAVE NOW
PASSED THEIR PEAK. WIND SPEEDS WILL SLOWLY EASE THROUGH 9
PM...HOWEVER LOCAL AREAS WILL STILL EXPERIENCE WIND SPEEDS OF 25
TO 35 MPH WITH GUSTS TO 45 MPH DURING THIS TIME. WINDS WILL BEGIN
TO QUICKLY SUBSIDE AFTER 9 TO 10 PM THIS EVENING. 

$$

CERNIGLIA
WWW.WEATHER.GOV/SEATTLE

000 
WWUS76 KSEW 190418
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
918 PM PDT THU OCT 18 2007

WAZ001-503>512-514-515-190530-
/O.CAN.KSEW.WI.Y.0011.000000T0000Z-071019T0500Z/
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-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
918 PM PDT THU OCT 18 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE WIND
ADVISORY. 

WINDS ACROSS WESTERN WASHINGTON HAVE DIMINISHED IN THE WAKE OF THE
PASSING STORM AND STRONG WINDS ARE NO LONGER EXPECTED.  

$$

CERNIGLIA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SEATTLE WA
330 AM PDT THU OCT 18 2007

.SYNOPSIS...A STRONG SURFACE LOW DEVELOPING OFFSHORE WILL HEAD
TOWARD THE STATE TODAY WITH VERY WINDY CONDITIONS DEVELOPING ALONG
THE COAST AND NORTH INTERIOR...AND WINDY CONDITIONS ELSEWHERE.
ANOTHER SYSTEM WILL MOVE ONSHORE FRIDAY FOR ANOTHER ROUND OF RAIN
AND AUTUMN BREEZES. AN UPPER LEVEL RIDGE WILL BUILD OVER THE AREA
THROUGH THE LATER HALF OF THE WEEKEND WITH THE BEST CHANCE OF RAIN
ACROSS THE NORTHERN PORTION OF THE STATE.

&&

.SHORT TERM...THE QUESTION FOR THE MORNING IS WHERE IS THE LOW GOING
TO GO AND HOW STRONG ARE THE WINDS GOING TO BE TODAY. FIRST THE LOW.
PRETTY HARD TO FIND THE SURFACE LOW ON THE IR SATELLITE IMAGERY. WV
IMAGERY GIVES A BETTER IDEA WITH A DRY SLOT NEAR 46N NOW APPROACHING
130W. WE ARE VERY FORTUNATE THAT THE LOW TRACK WILL BE NEAR BUOY 5
THIS TIME. WINDS AT BUOY 5 HAVE GONE FROM 170 DEGREES AT 19 KNOTS AT
04Z TO 80 DEGREES AT 31 KNOTS AT 09Z. WITH THE WINDS COMING AROUND
THIS WAY EXPECT THE LOW TRACK TO GO JUST SOUTH OF BUOY 5
( 46N/131W  ). PRESSURE AT BUOY 5 AT 09Z WAS 990 MB. VERIFYING THE
MODELS AT 09Z OFF OF THIS REPORT THE GFS IS DOING A BETTER JOB WITH
THE TRACK OF THE LOW WITH THE NAM A LITTLE TOO FAR SOUTH. MM5GFS
SURFACE PRESSURE RIGHT ON AT 09Z. SO WHERE DOES THE LOW GO IN THE
NEXT 18 HOURS. OBS ALONG THE COAST NOT MUCH HELP AT THIS POINT WITH
PRESSURE FALLS NEAR 2 MB IN THE LAST THREE HOURS AT
KUIL...KHQM...AND KAST. BEST INDICATOR AT THIS TIME IS THE DRY SLOT
ASSOCIATED WITH THE LOW WHICH IS NOW SHOWING SIGNS OF STARTING TO
CURVE TO THE NORTHEAST INSTEAD OF THE DUE EASTERLY TRACK IN HAD IN
THE LAST FEW HOURS. GIVEN THIS AND THE BETTER VERIFICATION AT 09Z
WILL LEAN TOWARD THE MM5GFS MODEL SOLUTION THIS MORNING. MM5GFS HAS
THE CENTER OF THE LOW NEAR 985 MB AT 09Z WITH THE LOW CONTINUING TO
DEEPEN TO A 977 MB LOW ABOUT 100 NM OFF OF CAPE FLATTERY AT 18Z.
AFTER 18Z THE LOW BEGINS TO FILL AS IT CONTINUES TO MOVE NORTHEAST
TOWARD THE CENTRAL AND SOUTHERN PORTION OF VANCOUVER ISLAND AND BY
00Z ITS CENTRAL PRESSURE IS UP TO 982 AS IT BEGINS TO MOVE INTO THE
BRITISH COLUMBIA MAINLAND BETWEEN VANCOUVER AND POWELL RIVER. THE
LOW CONTINUES TO FILL AND BY 06Z IS NORTH OF KAMLOOPS WITH A CENTRAL
PRESSURE OF 988MB.

NOW FOR THE WIND PART OF THE EQUATION. HIGH WIND WARNINGS WILL
REMAIN IN EFFECT FOR THE COAST AND THE NORTH INTERIOR. LAST PASS OF
THE QUICKSCAT SATELLITE AT 03Z JUST CAUGHT THE LEADING EDGE OF THE
LOW WITH 40 KNOTS WINDS OUT AHEAD OF THE LOW AND A GOOD AREA OF
30-40 KNOTS WINDS BEHIND THE LOW. USING THE MM5GFS TRACK FOR THE LOW
EXPECT THE SOUTHEAST WINDS TO PICK UP ALONG THE COAST IN THE 12Z-15Z
TIMEFRAME AND THEN PEAK OUT AROUND 30 TO 40 MPH WITH GUSTS TO 60 MPH
NEAR 18Z RIGHT AHEAD OF THE FRONT ASSOCIATED WITH THE LOW. ONCE THE
FRONT PASSES THE WINDS WILL SWITCH AROUND TO WEST BUT GIVEN THE
QUICKSCAT WINDS THE WIND BEHIND THE FRONT COULD ALSO BE STRONG
ENOUGH TO MEET HIGH WIND CRITERIA.

FOR THE NORTH INTERIOR WINDS WILL INCREASE AFTER 15Z AS THE LOW
APPROACHES WITH SOUTHEASTERLY WIND PEAKING AS THE FRONT GOES BY IN
THE 21Z-00Z TIMEFRAME. WINDS WILL DECREASE BEHIND THE FRONT.

FOR THE REMAINDER OF THE LOWLANDS WILL ISSUE A WIND ADVISORY FOR
LATER THIS AFTERNOON INTO THIS EVENING. WITH THE TRACK OF THE LOW
THE STRONGEST WINDS OVER THE LOWLANDS FROM EVERETT SOUTHWARD WILL
ACTUALLY BE BEHIND THE FRONT WITH THE PRESSURE RISES AS THE LOW
MOVES INTO BRITISH COLUMBIA. THE SURFACE PRESSURE IS FORECAST TO
RISE ABOUT 10 MB BETWEEN 21Z-03Z IN THE PUGET SOUND AREA. ITS IN
THIS WINDOW...ESPECIALLY THE 00Z-03Z TIMEFRAME WHERE I EXPECT THE
STRONGEST WINDS...SOUTHERLY 20 TO 30 MPH WITH GUSTS TO 40 MPH.

ANOTHER AREA TO WATCH OUT FOR DURING THE 21Z-03Z TIMEFRAME IS THE
STRAIT OF JUAN DE FUCA WITH A SURGE OF WESTERLIES BEHIND THE FRONT.
WILL INCLUDE THE STRAIT IN THE WIND ADVISORY AS WELL.

OUTSIDE OF THE WIND VARIABLE WITH THIS LOW BEING THE REMNANT OF
LINGLING THERE IS PLENTY OF JUICE WITH THIS SYSTEM AS WELL. EXPECT A
COUPLE INCHES OF RAIN ALONG THE SOUTHWEST SLOPES OF THE OLYMPICS
IN THE NEXT 12 HOURS. EVEN IN THE LOWLANDS UP TO AN INCH OF
PRECIPITATION IS POSSIBLE TODAY.

WINDS WILL SETTLE DOWN ALL AREAS PRETTY QUICKLY AFTER 06Z. NEXT
SYSTEM MOVING INLAND MAINLY OVER OREGON ON FRIDAY WITH RAIN
SPREADING UP FROM THE SOUTH DURING THE MORNING HOURS. ANOTHER LOW
TRACK BY TO THE NORTH ON SATURDAY WILL KEEP POPS IN THE LIKELY OR
ABOVE CATEGORY.

.LONG TERM...SOME CHANGES IN THE EXTENDED MODELS THIS MORNING WITH
THE EURO AND GFS NOW INDICATING SOME RIDGING BEGINNING ON SUNDAY.
THE RACE WILL BE ON TO SEE IF THE RIDGE WILL BUILD UP ENOUGH TO PUSH
THE NEXT WARM FRONT NORTH OF THE STATE. FOR NOW WILL LEAVE CHANCE
POPS IN THE FORECAST. RIDGE CONTINUES TO BUILD IN THE MODELS FOR THE
FIRST PART OF NEXT WEEK BUT MODELS ALSO SHOWING FRONTS MOVING INLAND
JUST TO THE NORTH OF THE AREA. FOR NOW WILL STAY WITH THE CHANCE
POPS IN THE EXTENDED PERIOD. IF MORE RUNS CONTINUE WITH THE STRONGER
RIDGE LOOK FOR THE EXTENDED FORECAST FOR THE MIDDLE PART OF NEXT
WEEK TO DRY OUT. FELTON
&&

.AVIATION...A DEEP LOW ASSOCIATED WITH A STRONG FRONTAL SYSTEM WILL
MOVE NE REACHING CENTRAL VANCOUVER ISLAND AROUND 21Z. WORST EFFECT
WILL BE VERY STRONG WINDS AHEAD OF AND BEHIND THE LOW. CIGS
OVC040-060 -RA AHEAD OF 21Z FROPA OVER PUGET SOUND. CIGS LOWER TO
BKN-OVC030 -SHRA BEHIND THE FRONT. WINDS ALOFT FL030-FL100 S-SW
40KT-60KT ASSOCIATED WITH THIS SYSTEM.

KSEA...BIG COMPRESSION PROBLEM TODAY. S-SW WINDS 60KT AT FL100 OVER
SW ARRIVAL GATE (KOLM) FROM MID MORNING ON...S WINDS 40-60KT
FL050 OVER KSEA. -RA OVC045 AHEAD OF FRONT...THEN FROPA PUGET SOUND
21Z...BUT CIGS LOWER TO BKN020-030 -SHRA WITH AND AFTER FROPA.
STRONGEST SURFACE WINDS 20030G45KT ROUGHLY 23Z-02Z DUE TO STRONG
PRESSURE RISES OCCURRING BEHIND THE FRONT. KAM

&&

.MARINE...THE DEEP LOW APPROACHING THE N COAST REMAINS ON TRACK AND
SHOULD CROSS THE CENTRAL VANCOUVER ISLAND COAST A BIT NORTH OF CAPE
FLATTERY EARLY THIS AFTERNOON. THE LOW WILL BE FILLING BY LANDFALL
BUT SHOULD BE AROUND 980 MB. BASED ON MM5-GFS HAVE GONE WITH A SWATH
OF 50 KT WINDS OVER THE COASTAL WATERS BEHIND THE LOW. STILL A
LITTLE UNSURE OF HOW STRONG THE W SURGE THROUGH THE STRAIT WILL BE
BEHIND THE LOW...BUT WENT WITH THE MM5-GFS HERE AS WELL. HIGH SURF
IS STILL ON TRACK FOR THE COAST...BUT WITH THE SOMEWHAT SHORT
DURATION THE STRONGEST W WINDS HAVE OVER THE OFFSHORE...HAVE
FOLLOWED GUIDANCE AND LOWERED THE SEAS AFTER MIDNIGHT TONIGHT. WAVE
MODEL IS BACK TO BRINGING ANOTHER BIG W SWELL TO THE COAST SATURDAY
BEHIND A DIFFERENT LOW. KAM

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
.STORM WARNING COASTAL WATERS.
.GALE WARNING ALL OTHER WATERS.
.SMALL CRAFT ADVISORY FOR ROUGH GRAYS HARBOR BAR.
.HEAVY SURF ADVISORY COASTAL ZONES.

WEATHER.GOV/SEATTLE