Alert archive / Washington / High Wind Warnings in 2007

High Wind Warning 4, NWS Seattle, WA

October 17, 2007San Juan County, Washington

NWS Seattle, WA issued this high wind warning at Oct 17, 2007, 3:53 PM PDT for San Juan County, Washington. It took effect at Oct 18, 2007, 6:00 AM PDT. It was in force for 13 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 17, 2007, 3:53 PM PDT (22:53 UTC)
In effect from
Oct 18, 2007, 6:00 AM PDT
Expired
Oct 18, 2007, 6:57 PM PDT
In force
13 hr
Issued by
NWS Seattle, WA

County San Juan County, WA

The radar

The Seattle radar (KATX), 54 km from the middle of the area, began a volume at 22:53 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Salem/Mcnary, OR (KSLE), launched 12:00Z, 10.9 hours before the alert went out and 402 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Salem/Mcnary, OR at 12:00Z on 2007-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salem/Mcnary, OR at 12:00Z on 2007-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 177 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
586 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
177 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WWUS76 KSEW 172253
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
353 PM PDT WED OCT 17 2007

...HIGH WIND WARNING NOW IN EFFECT FOR THE NORTH AND CENTRAL
WASHINGTON COAST THURSDAY...
...HIGH WIND WARNING NOW IN EFFECT FOR THE NORTH INTERIOR OF
WESTERN WASHINGTON THURSDAY...
...HIGH WIND WATCH REMAINS IN EFFECT FOR MUCH OF THE REST OF
WESTERN WASHINGTON THURSDAY...

.AN INTENSIFYING LOW PRESSURE SYSTEM 800 MILES OFF THE PACIFIC
NORTHWEST COAST WEDNESDAY AFTERNOON IS FORECAST TO SWING ONTO
VANCOUVER ISLAND LATE THURSDAY AND WEAKEN. THE STRONGEST WINDS
ASSOICATED WITH THIS SYSTEM ARE ANTICIPATED ALONG THE COAST AND
NORTH INTERIOR THURSDAY. LESS INTENSE WINDS ARE EXPECTED ELSEWHERE
IN WESTERN WASHINGTON AT THIS TIME. WINDS SHOULD DECREASE
OVERNIGHT THURSDAY.

WAZ516-517-180700-
/O.NEW.KSEW.HW.W.0004.071018T1300Z-071019T0000Z/
NORTH COAST-CENTRAL COAST-
353 PM PDT WED OCT 17 2007

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 5 PM PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 6 AM TO 5 PM PDT THURSDAY.

SOUTHERLY WINDS ARE EXPECTED TO INCREASE THURSDAY MORNING 30 TO 40
MPH WITH GUSTS TO 60 MPH AND THEN SHIFT TO SOUTHWEST BY EARLY
AFTERNOON. WINDS WILL THEN DECREASE BY THURSDAY EVENING.

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

$$

WAZ001-503-506-510-180700-
/O.NEW.KSEW.HW.W.0004.071018T1300Z-071019T0100Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
353 PM PDT WED OCT 17 2007

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 6 PM PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 6 AM TO 6 PM PDT THURSDAY. 

SOUTHERLY WINDS ARE EXPECTED TO INCREASE THURSDAY MORNING AFTER
SUNRISE TO 30 TO 40 MPH WITH GUSTS TO 60 MPH. WINDS ARE FORECAST
TO DECREASE THURSDAY NIGHT.

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

$$

WAZ504-505-507>509-511>515-180700-
/O.NEW.KSEW.HW.A.0004.071018T1300Z-071019T0600Z/
SOUTHWEST INTERIOR-EAST PUGET SOUND LOWLANDS-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-OLYMPICS-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
353 PM PDT WED OCT 17 2007

...HIGH WIND WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A HIGH WIND
WATCH...WHICH IS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING. 

THE POTENTIAL EXISTS FOR A HAZARDOUS HIGH WIND EVENT. A HIGH WIND
WATCH MEANS SUSTAINED WINDS OF AT LEAST 30 TO 40 MPH WITH GUSTS
TO 60 MPH MAY OCCUR...BUT IS NOT YET CERTAIN.

WINDS FOR MUCH OF THE REST OF WESTERN WASHINGTON ARE EXPECTED TO
INCREASE LATER THURSDAY AFTERNOON AND EVENING. AT THIS TIME...
SOUTH WINDS OF 25 TO 35 MPH WITH GUSTS TO 50 MPH ARE ANTICIPATED
BUT COULD BE STRONGER. 

THE SEATTLE NATIONAL WEATHER SERVICE FORECAST OFFICE WILL
CONTINUE TO MONITOR THE EVOLUTION OF THIS STORM AND ISSUE FURTHER
INFORMATION AS IT DEVELOPS. LISTEN TO NOAA WEATHER RADIO OR VISIT
WEATHER.GOV/SEATTLE TO VIEW THE LATEST WEATHER STATEMENTS AND
FORECAST DISCUSSIONS REGARDING THIS STORM.

$$
5 follow-up statements
000 
WWUS76 KSEW 180547
NPWSEW

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1047 PM PDT WED OCT 17 2007

...HIGH WIND WARNING NOW IN EFFECT FOR THE NORTH AND CENTRAL
WASHINGTON COAST THURSDAY...
...HIGH WIND WARNING NOW IN EFFECT FOR THE NORTH INTERIOR OF
WESTERN WASHINGTON THURSDAY...
...HIGH WIND WATCH REMAINS IN EFFECT FOR MUCH OF THE REST OF
WESTERN WASHINGTON THURSDAY...

.AN INTENSIFYING LOW PRESSURE SYSTEM 500 MILES OFF THE PACIFIC
NORTHWEST COAST WEDNESDAY NIGHT IS FORECAST TO MOVE EAST NORTHEAST
REACHING THE CENTRAL AND SOUTHERN PORTION OF VANCOUVER ISLAND LATE
THURSDAY AFTERNOON. THE STRONGEST WINDS ASSOCIATED WITH THIS
SYSTEM ARE ANTICIPATED ALONG THE COAST AND NORTH INTERIOR
THURSDAY. LESS INTENSE WINDS ARE EXPECTED ELSEWHERE IN WESTERN
WASHINGTON AT THIS TIME. WINDS SHOULD DECREASE OVERNIGHT THURSDAY.

WAZ516-517-181400-
/O.CON.KSEW.HW.W.0004.071018T1300Z-071019T0000Z/
NORTH COAST-CENTRAL COAST-
1047 PM PDT WED OCT 17 2007

...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM TO 5 PM PDT
THURSDAY...

A HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM TO 5 PM PDT
THURSDAY. 

SOUTHERLY WINDS ARE EXPECTED TO INCREASE THURSDAY MORNING 30 TO
40 MPH WITH GUSTS TO 60 MPH AND THEN SHIFT TO SOUTHWEST BY EARLY
AFTERNOON. WINDS WILL THEN DECREASE BY THURSDAY EVENING.

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

$$

WAZ001-503-506-510-181400-
/O.CON.KSEW.HW.W.0004.071018T1300Z-071019T0100Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
1047 PM PDT WED OCT 17 2007

...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM TO 6 PM PDT
THURSDAY...

A HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM TO 6 PM PDT
THURSDAY. 

SOUTHERLY WINDS ARE EXPECTED TO INCREASE THURSDAY MORNING AFTER
SUNRISE TO 30 TO 40 MPH WITH GUSTS TO 60 MPH. WINDS ARE FORECAST
TO DECREASE THURSDAY NIGHT.

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

$$

WAZ504-505-507>509-511>515-181400-
/O.EXT.KSEW.HW.A.0004.071018T1800Z-071019T0600Z/
SOUTHWEST INTERIOR-EAST PUGET SOUND LOWLANDS-EVERETT AND VICINITY-
SEATTLE/BREMERTON AREA-TACOMA AREA-HOOD CANAL AREA-
LOWER CHEHALIS VALLEY AREA-OLYMPICS-
EASTERN STRAIT OF JUAN DE FUCA-WESTERN STRAIT OF JUAN DE FUCA-
1047 PM PDT WED OCT 17 2007

...HIGH WIND WATCH NOW IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...

THE HIGH WIND WATCH IS NOW IN EFFECT FROM LATE THURSDAY MORNING
THROUGH THURSDAY EVENING. 

THE POTENTIAL EXISTS FOR A HAZARDOUS HIGH WIND EVENT. A HIGH WIND
WATCH MEANS SUSTAINED WINDS OF AT LEAST 30 TO 40 MPH WITH GUSTS
TO 60 MPH MAY OCCUR...BUT IS NOT YET CERTAIN.

WINDS FOR MUCH OF THE REST OF WESTERN WASHINGTON ARE EXPECTED TO
INCREASE MID TO LATE THURSDAY AFTERNOON AND CONTINUE INTO THE
EVENING HOURS. AT THIS TIME... SOUTH WINDS OF 25 TO 35 MPH WITH GUSTS
TO 50 MPH ARE ANTICIPATED BUT COULD BE STRONGER.

THE SEATTLE NATIONAL WEATHER SERVICE FORECAST OFFICE WILL
CONTINUE TO MONITOR THE EVOLUTION OF THIS STORM AND ISSUE FURTHER
INFORMATION AS IT DEVELOPS. 

LISTEN TO NOAA WEATHER RADIO OR VISIT WEATHER.GOV/SEATTLE TO VIEW
THE LATEST WEATHER STATEMENTS AND FORECAST DISCUSSIONS REGARDING
THIS STORM.

$$

FELTON
WEATHER.GOV/SEATTLE
000 
WWUS76 KSEW 181114
NPWSEW

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

...HIGH WIND WARNING NOW IN EFFECT FOR THE NORTH AND CENTRAL
WASHINGTON COAST TODAY...
...HIGH WIND WARNING NOW IN EFFECT FOR THE NORTH INTERIOR OF
WESTERN WASHINGTON TODAY...
...WIND ADVISORY IN EFFECT THIS AFTERNOON AND THIS EVENING FOR
MUCH OF THE REMAINDER OF THE LOWLANDS OF WESTERN WASHINGTON...

.AN INTENSIFYING LOW PRESSURE SYSTEM 300 MILES OFF THE PACIFIC
NORTHWEST COAST EARLY THURSDAY MORNING IS FORECAST TO MOVE EAST
NORTHEAST REACHING THE CENTRAL AND SOUTHERN PORTION OF VANCOUVER
ISLAND LATE THIS AFTERNOON. THE LOW WILL CONTINUE TO TRACK
NORTHEAST INTO THE INTERIOR OF BRITISH COLUMBIA TONIGHT. 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 OVERNIGHT TONIGHT.

WAZ513-181215-
/O.CAN.KSEW.HW.A.0004.071018T1800Z-071019T0600Z/
OLYMPICS-
414 AM PDT THU OCT 18 2007

...HIGH WIND WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS CANCELLED THE HIGH
WIND WATCH FOR THE OLYMPICS. 

$$

WAZ516-517-181915-
/O.CON.KSEW.HW.W.0004.071018T1300Z-071019T0000Z/
NORTH COAST-CENTRAL COAST-
414 AM PDT THU OCT 18 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

SOUTHERLY WINDS ARE EXPECTED TO INCREASE BETWEEN 5 AND 8 AM THIS MORNING
TO 30 TO 40 MPH WITH GUSTS TO 60 MPH. THE WINDS WILL SHIFT TO
WEST BY EARLY 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.

$$

WAZ001-503-506-510-181915-
/O.CON.KSEW.HW.W.0004.071018T1300Z-071019T0100Z/
SAN JUAN COUNTY-WESTERN WHATCOM COUNTY-WESTERN SKAGIT COUNTY-
ADMIRALTY INLET AREA-
414 AM PDT THU OCT 18 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS
AFTERNOON. 

SOUTHERLY WINDS ARE EXPECTED TO INCREASE THURSDAY MORNING AFTER
8 AM RISING TO 30 TO 40 MPH WITH GUSTS TO 60 MPH BY NOON. THESE
WINDS WILL CONTINUE UNTIL LATE AFTERNOON. THE WINDS WILL DECREASE
SIGNIFICANTLY TONIGHT.

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

$$

WAZ504-505-507>509-511-512-514-515-181915-
/O.UPG.KSEW.HW.A.0004.071018T1800Z-071019T0600Z/
/O.NEW.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-
414 AM PDT THU OCT 18 2007

...WIND ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM PDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 PM
PDT THIS EVENING. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

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. 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.

$$

FELTON
WEATHER.GOV/SEATTLE
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

The office that day

Everything else NWS Seattle, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 17, 7:29 AM PDTHigh Wind WatchSEWSan Juan6 hr
Oct 17, 1:28 PM PDTHigh Wind WatchSEWSan Juan34 hr
Oct 17, 3:03 PM PDTHigh Surf AdvisorySEW30 hr
Oct 17, 3:53 PM PDTHigh Wind WatchSEW12 hr

Nearby

High Wind Warnings in Washington, 2007Every high wind warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.