Wind Advisory 19, NWS Seattle, WA

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

Area Forecast Discussion
National Weather Service Seattle WA
916 AM PST Wed Dec 19 2018

.SYNOPSIS...A strong frontal system will bring rain and windy
conditions tonight and Thursday. Weak high pressure aloft will
bring mostly dry weather Friday and Saturday. A second frontal
system will bring another round of rain and wind Saturday night
and Sunday. There will be a chance of showers Monday and Tuesday
with a broad upper trough over the area.

&&

.SHORT TERM /TODAY THROUGH FRIDAY/...Weak high pressure aloft will
bring a relatively quiet weather day today with just a few showers
and mostly cloudy skies. A strong frontal system will move through
the area tonight and Thursday. High wind is a good bet at the
coast and north interior with a deep surface tracking inland over
central Vancouver Island around midday. High wind is also
possible further south over the Puget Sound area later in the day
as the low moves inland and the OLM-BLI gradient pops up to around
+10MB. There will also be a strong push of westerlies down the
Strait of Juan de Fuca late Thursday as the low moves inland.
Winds will ease all areas Thursday night. Snow levels should rise
high enough tonight that snow in the mountains won't be a big
concern although Mount Baker could get advisory amounts. Things
will dry out quickly Thursday night behind the front with an upper
ridge moving over the area on Friday. Schneider

.LONG TERM /SATURDAY THROUGH TUESDAY/...Previous discussion...A
quick moving shortwave trough will carry moisture into Washington
Friday night into early Saturday. Rain showers associated with
this system look to decrease in coverage through the day as the
next ridge briefly tries to build across the area ahead of another
strong Pacific storm system. A strong low looks to barrel into
the Pacific Northwest Saturday night and Sunday, carrying with it
another threat for heavy rain and wind. At this point in time this
system looks similar to previous systems so will have to keep an
eye on potential impacts as time gets closer. There could be a
brief break Sunday night but another storm system seems likely
right in time for Christmas Eve. Beginning to see some
disagreement between ECMWF and GFS but looking at ensemble
guidance /EPS GEMS and GEFS/ it looks like the ECMWF may be a
little too aggressive at this point. Regardless, strong troughing
looks imminent and at this point looks to linger through Christmas
Day. Could see a break after this system, which would be much
appreciated as a ridge tries to build into the region.

&&

.AVIATION...A weak upper ridge will cross the area today with
westerly flow aloft. A strong frontal system will move into the
area tonight with increasing southwest flow aloft. The air mass is
moist and stable.

Mostly mid and high clouds today although there will be some
patches of MVFR ceilings in the central Puget Sound area this
morning. Low clouds will become widespread tonight as a front
arrives.

KSEA...Mid and high clouds today. Ceilings 3500-5000 feet are
possible this morning in isolated showers. Ceilings will lower
tonight as rain develops with MVFR conditions developing.
Southerly wind 5-10 knots will become easterly this afternoon.
Southerly wind will increase and become gusty on Thursday.
Schneider

&&

.MARINE...A strong frontal system will bring storm force southerly
winds to the Coastal Waters and parts of the Strait and Northern
Inland Waters late tonight and Thursday. There will also be a
burst of storm force west winds down the Strait later Thursday as
a deep surface low move inland to the north. Gales force south
winds are expected for all other waters.

There will be a relative lull Friday then a second strong frontal
system will move through the area Friday night and Saturday with
another round of gales for much of the area.

West swell around 20 feet will bring high surf conditions to the
Coast today. A high surf advisory is in effect. The combination
of high tides, low atmospheric pressure, and large waves could
bring coastal flooding to the coast on Thursday. A coastal flood
watch is in effect. High tides and low pressure could also bring
minor tidal overflow to parts of the inland waters on Thursday.
Schneider

&&

.HYDROLOGY...Flooding continues on the Skokomish river in Mason
County. The river will continue to fall today but remain above flood
stage. The river will again on Thursday, going back above moderate
stage, with another round of heavy rain.

Flooding on other rivers is unlikely over the next seven days.
Bower/Burke

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...High Wind Warning from 7 AM to 7 PM PST Thursday for Admiralty
     Inlet Area-Bellevue and Vicinity-Bremerton and Vicinity-
     Everett and Vicinity-Hood Canal Area-San Juan County-
     Seattle and Vicinity-Tacoma Area-Western Skagit County-
     Western Whatcom County.

     Wind Advisory from 7 AM to 4 PM PST Thursday for Lower Chehalis
     Valley Area-Southwest Interior.

     High Wind Warning from 1 AM to 1 PM PST Thursday for Central
     Coast-North Coast.

     High Surf Advisory until 4 PM PST this afternoon for Central
     Coast-North Coast.

     Coastal Flood Watch from Thursday morning through Thursday
     evening for Central Coast-North Coast.

     Wind Advisory from noon to 7 PM PST Thursday for Eastern Strait
     of Juan de Fuca.

PZ...Small Craft Advisory for rough bar until 4 PM PST Thursday for
     Grays Harbor Bar.

     Small Craft Advisory until 10 PM PST this evening for Coastal
     Waters From Cape Flattery To James Island 10 To 60 Nm-
     Coastal Waters From Cape Flattery To James Island Out 10 Nm-
     Coastal Waters From James Island To Point Grenville 10 To
     60 Nm-Coastal Waters From James Island To Point Grenville
     Out 10 Nm-Coastal Waters From Point Grenville To Cape
     Shoalwater 10 To 60 Nm-Coastal Waters From Point Grenville
     To Cape Shoalwater Out 10 Nm-West Entrance U.S. Waters
     Strait Of Juan De Fuca.

     Storm Warning from 1 AM to 4 PM PST Thursday for Coastal Waters
     From Cape Flattery To James Island 10 To 60 Nm-Coastal
     Waters From Cape Flattery To James Island Out 10 Nm-Coastal
     Waters From James Island To Point Grenville 10 To 60 Nm-
     Coastal Waters From James Island To Point Grenville Out 10
     Nm-Coastal Waters From Point Grenville To Cape Shoalwater
     10 To 60 Nm-Coastal Waters From Point Grenville To Cape
     Shoalwater Out 10 Nm.

     Storm Warning from 4 PM Thursday to 4 AM PST Friday for Central
     U.S. Waters Strait Of Juan De Fuca-East Entrance U.S.
     Waters Strait Of Juan De Fuca.

     Gale Warning from 10 PM this evening to 4 PM PST Thursday for
     Central U.S. Waters Strait Of Juan De Fuca-East Entrance
     U.S. Waters Strait Of Juan De Fuca.

     Small Craft Advisory until noon PST today for Northern Inland
     Waters Including The San Juan Islands.

     Gale Warning from 10 PM this evening to 4 AM PST Friday for
     Northern Inland Waters Including The San Juan Islands-West
     Entrance U.S. Waters Strait Of Juan De Fuca.

     Gale Warning from 1 AM to 7 PM PST Thursday for Admiralty Inlet.

     Small Craft Advisory until 4 PM PST this afternoon for Puget
     Sound and Hood Canal.

     Gale Warning from 4 AM to 10 PM PST Thursday for Puget Sound and
     Hood Canal.

&&

www.weather.gov/seattle