Alert archive / Washington / High Wind Warnings in 2018

High Wind Warning 9, NWS Seattle, WA

December 19, 2018San Juan County, Washington

NWS Seattle, WA issued this high wind warning at Dec 19, 2018, 9:16 AM PST for San Juan County, Washington. It took effect at Dec 20, 2018, 1:00 AM PST. It was in force for 18 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 19, 2018, 9:16 AM PST (17:16 UTC)
In effect from
Dec 20, 2018, 1:00 AM PST
Expired
Dec 20, 2018, 7:00 PM PST
In force
18 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 17:16 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.

What was reported inside it

TimeReportWhereRemark
Dec 20, 9:53 AM PSTNON-TSTM WND GST 461 Ssw Friday Harbor, WAASOS STATION FHR, FRIDAY HARBOR AIRPORT.
Dec 20, 10:13 AM PSTNON-TSTM WND GST 597 E Friday Harbor, WAMESONET STATION D7371, LOPEZ ISLAND.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Quillayute State, WA (KUIL), launched 12:00Z, 5.3 hours before the alert went out and 127 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, Quillayute State, WA at 12:00Z on 2018-12-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 136 joules per kilogram.LCLEL10008507005003002001001 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, Quillayute State, WA at 12:00Z on 2018-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.1939587897117136156Sfc1 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
136 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
98 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
148 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

033 
WWUS76 KSEW 191716
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
916 AM PST Wed Dec 19 2018

WAZ516-517-201015-
/O.UPG.KSEW.HW.A.0005.181220T0900Z-181220T2100Z/
/O.NEW.KSEW.HW.W.0009.181220T0900Z-181220T2100Z/
North Coast-Central Coast-
916 AM PST Wed Dec 19 2018

...HIGH WIND WARNING IN EFFECT FROM 1 AM TO 1 PM PST THURSDAY...

The National Weather Service in Seattle has issued a High Wind
Warning, which is in effect from 1 AM to 1 PM PST Thursday. The
High Wind Watch is no longer in effect. 

* WIND...Southerly wind 30 to 40 mph with gusts up to 60 mph. 
  Strongest winds will be along the beaches and near the 
  shoreline of Grays Harbor. 

* SOME AFFECTED LOCATIONS...La Push, Neah Bay, Westport, Hoquiam.

* TIMING...Winds will increase rapidly late tonight and continue 
  through Thursday afternoon. 

* IMPACTS...Snapped tree branches and downed trees along with 
  local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ001-503-506-507-509>511-556-558-559-201015-
/O.UPG.KSEW.HW.A.0005.181220T1500Z-181221T0300Z/
/O.NEW.KSEW.HW.W.0009.181220T1500Z-181221T0300Z/
San Juan County-Western Whatcom County-Western Skagit County-
Everett and Vicinity-Tacoma Area-Admiralty Inlet Area-
Hood Canal Area-Bellevue and Vicinity-Seattle and Vicinity-
Bremerton and Vicinity-
916 AM PST Wed Dec 19 2018

...HIGH WIND WARNING IN EFFECT FROM 7 AM TO 7 PM PST THURSDAY...

The National Weather Service in Seattle has issued a High Wind
Warning, which is in effect from 7 AM to 7 PM PST Thursday. The
High Wind Watch is no longer in effect. 

* WIND...South to southeast wind 25 to 40 mph with gusts up to 60
  mph.

* SOME AFFECTED LOCATIONS...Ferndale, Bellingham, Sandy Point,
  Anacortes, Friday Harbor, Seattle, Bellevue, Tacoma, Everett, 
  and Bremerton. 

* TIMING...Winds will increase rapidly Thursday morning with the 
  strongest gusts expected for a few hours Thursday afternoon. 
  This is not expected to be a prolonged event. 

* IMPACTS...Snapped tree branches and downed trees along with 
  local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ504-512-201015-
/O.NEW.KSEW.WI.Y.0019.181220T1500Z-181221T0000Z/
Southwest Interior-Lower Chehalis Valley Area-
916 AM PST Wed Dec 19 2018

...WIND ADVISORY IN EFFECT FROM 7 AM TO 4 PM PST THURSDAY...

The National Weather Service in Seattle has issued a Wind
Advisory, which is in effect from 7 AM to 4 PM PST Thursday. 

* WIND...South wind 20 to 30 mph with gusts of 35 to 45 mph. 

* SOME AFFECTED LOCATIONS...Olympia, Lacey, Tumwater, Centralia,
  Toledo, and Montesano.

* TIMING...Winds will increase rapidly Thursday morning,
  continuing into Thursday afternoon. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

WAZ514-201015-
/O.NEW.KSEW.WI.Y.0019.181220T2000Z-181221T0300Z/
Eastern Strait of Juan de Fuca-
916 AM PST Wed Dec 19 2018

...WIND ADVISORY IN EFFECT FROM NOON TO 7 PM PST THURSDAY...

The National Weather Service in Seattle has issued a Wind
Advisory, which is in effect from noon to 7 PM PST Thursday. 

* WIND...West 20 to 35 mph with gusts up to 45 mph. 

* SOME AFFECTED LOCATIONS...Sequim and Port Angeles.

* TIMING...Winds will shift to the west and increase Thursday
  afternoon behind a cold front, continuing into Thursday evening. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

www.weather.gov/seattle
5 follow-up statements
717 
WWUS76 KSEW 192142
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
142 PM PST Wed Dec 19 2018

WAZ516-517-201200-
/O.CON.KSEW.HW.W.0009.181220T0900Z-181220T2100Z/
North Coast-Central Coast-
142 PM PST Wed Dec 19 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 1 AM TO 1 PM PST
THURSDAY...

* WIND...Southerly wind 30 to 45 mph with gusts up to 65 mph. 
  Strongest winds will be along the beaches and near the shoreline
  of Grays Harbor. 

* SOME AFFECTED LOCATIONS...La Push, Neah Bay, Westport, Hoquiam.

* TIMING...Winds will increase rapidly late tonight and continue 
  through Thursday afternoon. 

* IMPACTS...Snapped tree branches and downed trees along with some
  power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ001-503-506-507-509>511-556-558-559-201200-
/O.CON.KSEW.HW.W.0009.181220T1500Z-181221T0300Z/
San Juan County-Western Whatcom County-Western Skagit County-
Everett and Vicinity-Tacoma Area-Admiralty Inlet Area-
Hood Canal Area-Bellevue and Vicinity-Seattle and Vicinity-
Bremerton and Vicinity-
142 PM PST Wed Dec 19 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 AM TO 7 PM PST
THURSDAY...

* WIND...South to southeast wind 25 to 40 mph with gusts up to 
  60 mph. 

* SOME AFFECTED LOCATIONS...Ferndale, Bellingham, Sandy Point, 
  Anacortes, Friday Harbor, Seattle, Bellevue, Tacoma, Everett, 
  and Bremerton. 

* TIMING...Winds will increase rapidly Thursday morning with the
  strongest gusts expected for a few hours Thursday afternoon.

* IMPACTS...Snapped tree branches and downed trees along with some 
  power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ555-201200-
/O.EXA.KSEW.WI.Y.0019.181220T1500Z-181221T0000Z/
East Puget Sound Lowlands-
142 PM PST Wed Dec 19 2018

...WIND ADVISORY IN EFFECT FROM 7 AM TO 4 PM PST THURSDAY...

The National Weather Service in Seattle has issued a Wind
Advisory, which is in effect from 7 AM to 4 PM PST Thursday. 

* WIND...South wind 20 to 35 mph with gusts of 55 mph.

* SOME AFFECTED LOCATIONS...Enumclaw, North Bend and Buckley.

* TIMING...Winds will increase rapidly Thursday morning, 
  continuing into Thursday afternoon. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

WAZ504-512-201200-
/O.CON.KSEW.WI.Y.0019.181220T1500Z-181221T0000Z/
Southwest Interior-Lower Chehalis Valley Area-
142 PM PST Wed Dec 19 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 4 PM PST
THURSDAY...

* WIND...South wind 20 to 35 mph with gusts of 55 mph.

* SOME AFFECTED LOCATIONS...Olympia, Lacey, Tumwater, Centralia, 
  Toledo, and Montesano. 

* TIMING...Winds will increase rapidly Thursday morning, 
  continuing into Thursday afternoon. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

WAZ514-201200-
/O.CON.KSEW.WI.Y.0019.181220T2000Z-181221T0300Z/
Eastern Strait of Juan de Fuca-
142 PM PST Wed Dec 19 2018

...WIND ADVISORY REMAINS IN EFFECT FROM NOON TO 7 PM PST
THURSDAY...

* WIND...West 20 to 35 mph with gusts up to 55 mph.

* SOME AFFECTED LOCATIONS...Sequim and Port Angeles.

* TIMING...Winds will shift to the west and increase Thursday 
  afternoon behind a cold front, continuing into Thursday 
  evening. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

www.weather.gov/seattle
411 
WWUS76 KSEW 201129
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
329 AM PST Thu Dec 20 2018

WAZ509-511-556-558-559-202130-
/O.EXT.KSEW.HW.W.0009.181220T1800Z-181221T0300Z/
Tacoma Area-Hood Canal Area-Bellevue and Vicinity-
Seattle and Vicinity-Bremerton and Vicinity-
329 AM PST Thu Dec 20 2018

...HIGH WIND WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO
7 PM PST THIS EVENING...

* WIND...South to southeast wind 25 to 40 mph with gusts up to 
  60 mph. 

* SOME AFFECTED LOCATIONS...Seattle, Bellevue, Tacoma, and 
  Bremerton. 

* TIMING...Winds will increase rapidly Thursday morning with the 
  strongest gusts expected for a few hours Thursday afternoon. 

* IMPACTS...Snapped tree branches and downed trees along with 
  some power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ516-517-202100-
/O.CON.KSEW.HW.W.0009.000000T0000Z-181220T2100Z/
North Coast-Central Coast-
329 AM PST Thu Dec 20 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON...

* WIND...Southerly wind 30 to 45 mph with gusts up to 65 mph. 
  Strongest winds will be along the beaches and near the 
  shoreline of Grays Harbor. 

* SOME AFFECTED LOCATIONS...La Push, Neah Bay, Westport, Hoquiam.

* TIMING...Winds will increase rapidly late tonight and continue 
  through Thursday afternoon. 

* IMPACTS...Snapped tree branches and downed trees along with 
  some power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ001-503-506-507-510-202130-
/O.CON.KSEW.HW.W.0009.181220T1500Z-181221T0300Z/
San Juan County-Western Whatcom County-Western Skagit County-
Everett and Vicinity-Admiralty Inlet Area-
329 AM PST Thu Dec 20 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO
7 PM PST THIS EVENING...

* WIND...South to southeast wind 25 to 40 mph with gusts up to 
  60 mph. 

* SOME AFFECTED LOCATIONS...Ferndale, Bellingham, Sandy Point,
  Anacortes, Friday Harbor, and Bremerton. 

* TIMING...Winds will increase rapidly Thursday morning with the 
  strongest gusts expected for a few hours Thursday afternoon. 

* IMPACTS...Snapped tree branches and downed trees along with 
  some power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ504-512-555-202130-
/O.EXT.KSEW.WI.Y.0019.181220T1800Z-181221T0300Z/
Southwest Interior-Lower Chehalis Valley Area-
East Puget Sound Lowlands-
329 AM PST Thu Dec 20 2018

...WIND ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO 7 PM
PST THIS EVENING...

* WIND...South wind 20 to 35 mph with gusts of 55 mph.

* SOME AFFECTED LOCATIONS...Enumclaw, North Bend and Buckley.

* TIMING...Winds will increase rapidly Thursday morning, 
  continuing into Thursday afternoon. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

WAZ514-202130-
/O.CON.KSEW.WI.Y.0019.181220T2000Z-181221T0300Z/
Eastern Strait of Juan de Fuca-
329 AM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM PST
THIS EVENING...

* WIND...West 20 to 35 mph with gusts up to 55 mph.

* SOME AFFECTED LOCATIONS...Sequim and Port Angeles.

* TIMING...Winds will shift to the west and increase Thursday 
  afternoon behind a cold front, continuing into Thursday 
  evening. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

www.weather.gov/seattle
578 
WWUS76 KSEW 201848
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
1048 AM PST Thu Dec 20 2018

WAZ514-210300-
/O.UPG.KSEW.WI.Y.0019.181220T2000Z-181221T0300Z/
/O.EXA.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
Eastern Strait of Juan de Fuca-
1048 AM PST Thu Dec 20 2018

...HIGH WIND WARNING IN EFFECT UNTIL 7 PM PST THIS EVENING...

The National Weather Service in Seattle has issued a High Wind
Warning, which is in effect until 7 PM PST this evening. The Wind
Advisory is no longer in effect. 

* WIND...South wind 20 to 40 mph with gusts up to 60 mph shifting
  to west around 3 PM.

* SOME AFFECTED LOCATIONS...Sequim and Port Angeles.

* TIMING...Winds will shift to the west and increase Thursday 
  afternoon behind a cold front, continuing into Thursday 
  evening. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ516-517-210000-
/O.EXT.KSEW.HW.W.0009.000000T0000Z-181221T0000Z/
North Coast-Central Coast-
1048 AM PST Thu Dec 20 2018

...HIGH WIND WARNING NOW IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WIND...Southerly wind 30 to 45 mph with gusts up to 65 mph will
  gradually turn to westerly late in the afternoon. 

* SOME AFFECTED LOCATIONS...La Push, Neah Bay, Westport, Hoquiam.

* TIMING...High winds are occurring and will gradually diminish as
  winds turn to the west. 
  

* IMPACTS...Downed trees and power outages.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ509-511-556-558-559-210300-
/O.CON.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
Tacoma Area-Hood Canal Area-Bellevue and Vicinity-
Seattle and Vicinity-Bremerton and Vicinity-
1048 AM PST Thu Dec 20 2018

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

* WIND...South to southeast wind 25 to 40 mph with gusts up to 
  60 mph. 

* SOME AFFECTED LOCATIONS...Seattle, Bellevue, Tacoma, and 
  Bremerton. 

* TIMING...Strong winds will develop by noon and continue through
  the afternoon hours.  

* IMPACTS...Snapped tree branches and downed trees along with 
  power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ001-503-506-507-510-210300-
/O.CON.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
San Juan County-Western Whatcom County-Western Skagit County-
Everett and Vicinity-Admiralty Inlet Area-
1048 AM PST Thu Dec 20 2018

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

* WIND...South to southeast wind 25 to 40 mph with gusts up to 
  60 mph. 

* SOME AFFECTED LOCATIONS...Ferndale, Bellingham, Sandy Point,
  Anacortes, Friday Harbor, Oak Harbor and Port Townsend. 

* TIMING...High winds are occurring and will continue through this
  afternoon.  

* IMPACTS...Snapped tree branches and downed trees along with 
  power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ504-512-555-210300-
/O.CON.KSEW.WI.Y.0019.000000T0000Z-181221T0300Z/
Southwest Interior-Lower Chehalis Valley Area-
East Puget Sound Lowlands-
1048 AM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...

* WIND...South wind 20 to 35 mph with gusts of 55 mph.

* SOME AFFECTED LOCATIONS...Olympia, Centralia, Chehalis, Enumclaw,
  North Bend and Buckley.

* TIMING...through this afternoon.  

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

www.weather.gov/seattle
412 
WWUS76 KSEW 202310
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
310 PM PST Thu Dec 20 2018

WAZ516-517-210015-
/O.CON.KSEW.HW.W.0009.000000T0000Z-181221T0000Z/
North Coast-Central Coast-
310 PM PST Thu Dec 20 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WIND...West wind 20 to 40 MPH. 

* SOME AFFECTED LOCATIONS...La Push, Neah Bay, Westport, Hoquiam.

* TIMING...Winds have peaked and will gradually ease. 

* IMPACTS...Downed trees and power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ509-511-556-558-559-210300-
/O.CON.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
Tacoma Area-Hood Canal Area-Bellevue and Vicinity-
Seattle and Vicinity-Bremerton and Vicinity-
310 PM PST Thu Dec 20 2018

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

* WIND...South wind 20 to 40 mph.

* SOME AFFECTED LOCATIONS...Seattle, Bellevue, Tacoma, and 
  Bremerton. 

* TIMING...Winds have peaked and will gradually ease this evening. 

* IMPACTS...Snapped tree branches and downed trees along with 
  power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ514-210300-
/O.CON.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
Eastern Strait of Juan de Fuca-
310 PM PST Thu Dec 20 2018

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

* WIND...West wind 20 to 40 MPH. 

* SOME AFFECTED LOCATIONS...Sequim and Port Angeles.

* TIMING...Gusty west winds will continue into the early evening
  then ease. 

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ001-503-506-507-510-210300-
/O.CON.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
San Juan County-Western Whatcom County-Western Skagit County-
Everett and Vicinity-Admiralty Inlet Area-
310 PM PST Thu Dec 20 2018

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

* WIND...South 20 to 40 MPH. 

* SOME AFFECTED LOCATIONS...Ferndale, Bellingham, Sandy Point, 
  Anacortes, Friday Harbor, Oak Harbor and Port Townsend. 

* TIMING...Winds have peaked and will gradually ease this evening.

* IMPACTS...Snapped tree branches and downed trees along with 
  power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

WAZ504-512-555-210300-
/O.CON.KSEW.WI.Y.0019.000000T0000Z-181221T0300Z/
Southwest Interior-Lower Chehalis Valley Area-
East Puget Sound Lowlands-
310 PM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...

* WIND...South wind 15 to 35 MPH. 

* SOME AFFECTED LOCATIONS...Olympia, Centralia, Chehalis, 
  Enumclaw, North Bend and Buckley. 

* TIMING...Winds have peaked and will gradually ease this evening.

* IMPACTS...Winds may cause weaker trees and branches to fall 
  and produce local power outages. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 35 mph are expected. Winds
this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

www.weather.gov/seattle
950 
WWUS76 KSEW 210300
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
700 PM PST Thu Dec 20 2018

WAZ509-511-556-558-559-210400-
/O.EXP.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
Tacoma Area-Hood Canal Area-Bellevue and Vicinity-
Seattle and Vicinity-Bremerton and Vicinity-
700 PM PST Thu Dec 20 2018

...HIGH WIND WARNING WILL EXPIRE AT 7 PM PST THIS EVENING...

Winds will continue to ease through the rest of the evening as the
strong weather system departs. 

$$

WAZ514-210400-
/O.EXP.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
Eastern Strait of Juan de Fuca-
700 PM PST Thu Dec 20 2018

...HIGH WIND WARNING WILL EXPIRE AT 7 PM PST THIS EVENING...

Westerly gales still continue in the Strait of Juan de Fuca this
evening, but pressure gradients have eased from earlier and
damaging winds are not expected tonight. 

$$

WAZ001-503-506-507-510-210400-
/O.EXP.KSEW.HW.W.0009.000000T0000Z-181221T0300Z/
San Juan County-Western Whatcom County-Western Skagit County-
Everett and Vicinity-Admiralty Inlet Area-
700 PM PST Thu Dec 20 2018

...HIGH WIND WARNING WILL EXPIRE AT 7 PM PST THIS EVENING...

Pressure gradients have eased from earlier and damaging winds are
not expected for the rest of tonight. 

$$

WAZ504-512-555-210400-
/O.EXP.KSEW.WI.Y.0019.000000T0000Z-181221T0300Z/
Southwest Interior-Lower Chehalis Valley Area-
East Puget Sound Lowlands-
700 PM PST Thu Dec 20 2018

...WIND ADVISORY WILL EXPIRE AT 7 PM PST THIS EVENING...

Winds will continue to ease as a weather system departs the
region.

$$

www.weather.gov/seattle

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 19, 1:26 AM PSTCoastal Flood WatchSEW9 hr
Dec 19, 2:35 AM PSTGale WarningSEW48 hr
Dec 19, 2:35 AM PSTStorm WarningSEW48 hr
Dec 19, 9:16 AM PSTWind AdvisorySEW34 hr
Dec 19, 10:45 AM PSTCoastal Flood WarningSEW28 hr
Dec 19, 10:45 AM PSTCoastal Flood AdvisorySEWSan Juan27 hr
Dec 19, 1:44 PM PSTWinter Weather AdvisorySEW20 hr

Nearby

High Wind Warnings in Washington, 2018Every high wind warning in 2018

Sources

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