Wind Advisory 6, NWS Seattle, WA

240 
WWUS76 KSEW 171147 CCA
NPWSEW

URGENT - WEATHER MESSAGE...CORRECTED
National Weather Service Seattle WA
347 AM PST Sat Feb 17 2018

Corrected the Precautionary/Preparedness actions statement for the
Western Whatcom and Western Skagit segment.

WAZ515-171245-
/O.CAN.KSEW.WI.Y.0005.180217T1600Z-180218T0200Z/
Western Strait of Juan De Fuca-
347 AM PST Sat Feb 17 2018

...WIND ADVISORY IS CANCELLED FOR THE WESTERN STRAIT OF JUAN DE
FUCA...

The National Weather Service in Seattle has cancelled the Wind
Advisory. 

Wind speeds are expected to remain below advisory criterion.

$$

WAZ503-506-171945-
/O.COR.KSEW.WI.Y.0006.180218T0800Z-180219T0200Z/
Western Whatcom County-Western Skagit County-
347 AM PST Sat Feb 17 2018

...WIND ADVISORY IN EFFECT FOR THE WESTERN WHATCOM AND SKAGIT
LOWLANDS PRONE TO STRONG NORTHERLY WINDS FROM MIDNIGHT TONIGHT TO 
6 PM PST SUNDAY...

The National Weather Service in Seattle has issued a Wind
Advisory, which is in effect from midnight tonight to 6 PM PST
Sunday. 

* WIND...Increasing from the north at 20 to 35 mph with local
  gusts to 55 mph late tonight.

* SOME AFFECTED LOCATIONS...Lynden, Ferndale, Bellingham, Lummi
  Island, and Anacortes.

* TIMING...Winds are anticipated to peak during the late Sunday
  morning through early Sunday afternoon time frame.

* IMPACTS...Winds this strong can topple small trees, snap tree
  limbs, and cause local power outages. The strong winds along
  with temperatures near or slightly above freezing will make it 
  feel like it is in the teens and lower 20s.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make 
driving difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

WAZ504-509-511-556-558-559-171945-
/O.COR.KSEW.WI.Y.0005.180217T1700Z-180218T0200Z/
Southwest Interior-Tacoma Area-Hood Canal Area-
Bellevue and Vicinity-Seattle and Vicinity-Bremerton and Vicinity-
347 AM PST Sat Feb 17 2018

...WIND ADVISORY NOW IN EFFECT FOR PARTS OF THE PUGET SOUND REGION
AND SOUTHWEST INTERIOR FOR THE FROM 9 AM THIS MORNING TO 6 PM PST
THIS EVENING...

* WIND...Southerly winds will increase to 20 to 35 mph with gusts
  near 45 mph about midday. 

* SOME AFFECTED LOCATIONS...Seattle, Shelton, Bremerton, Tacoma,
  and McCleary. 

* TIMING...The strongest winds will occur this afternoon.

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make 
driving difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

WAZ001-171945-
/O.COR.KSEW.WI.Y.0005.180217T1900Z-180219T0200Z/
San Juan County-
347 AM PST Sat Feb 17 2018

...WIND ADVISORY NOW IN EFFECT FOR SAN JUAN COUNTY FROM 11 AM 
THIS MORNING TO 6 PM PST SUNDAY...

* WIND...Westerly winds will increase to 20 to 35 mph with local
  gusts near 45 mph early this afternoon before becoming northerly
  20 to 35 mph with gusts to 50 mph tonight. 

* SOME AFFECTED LOCATIONS...Lopez Island and Eastsound.

* TIMING...The westerly winds will peak early this afternoon.
  Expect the northerly winds to peak Sunday afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make 
driving difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

WAZ510-514-171945-
/O.COR.KSEW.WI.Y.0005.180217T1900Z-180218T0200Z/
Admiralty Inlet Area-Eastern Strait of Juan de Fuca-
347 AM PST Sat Feb 17 2018

...WIND ADVISORY NOW IN EFFECT FOR THE ADMIRALTY INLET AND EASTERN
STRAIT OF JUAN DE FUCA FROM 11 AM THIS MORNING TO 6 PM PST THIS 
EVENING...

* WIND...Westerly winds will increase to 20 to 35 mph with local 
  gusts near 55 mph on Saturday. 

* SOME AFFECTED LOCATIONS...Port Angeles, Port Townsend, and Oak 
  Harbor. 

* TIMING...The strongest winds are expected this afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make 
driving difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

WAZ516-517-171945-
/O.COR.KSEW.WI.Y.0005.180217T1400Z-180218T0200Z/
North Coast-Central Coast-
347 AM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT FOR THE NORTH AND CENTRAL COAST
UNTIL 6 PM PST THIS EVENING...

* WIND...Westerly winds will increase to 20 to 35 mph with local
  gusts near 55 mph this morning before diminishing later this
  afternoon. 

* SOME AFFECTED LOCATIONS...Westport, Hoquiam, and La Push.

* TIMING...The strongest winds are expected to occur during late
  this morning through early this afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make 
driving difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

www.weather.gov/seattle

685 
WWUS76 KSEW 171947
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
1147 AM PST Sat Feb 17 2018

WAZ504-509-511-556-558-559-180400-
/O.EXT.KSEW.WI.Y.0005.000000T0000Z-180218T0400Z/
Southwest Interior-Tacoma Area-Hood Canal Area-
Bellevue and Vicinity-Seattle and Vicinity-Bremerton and Vicinity-
1147 AM PST Sat Feb 17 2018

...WIND ADVISORY NOW IN EFFECT UNTIL 8 PM PST THIS EVENING...

* WIND...Southwest winds 20 to 35 mph with gusts near 50 mph will
  continue through early afternoon. Winds will start to slowly
  ease late this afternoon.

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

* TIMING...The strongest winds will occur through early this
  afternoon, with winds starting to slowly ease late this
  afternoon.

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ510-514-180500-
/O.EXT.KSEW.WI.Y.0005.000000T0000Z-180218T0500Z/
Admiralty Inlet Area-Eastern Strait of Juan de Fuca-
1147 AM PST Sat Feb 17 2018

...WIND ADVISORY NOW IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WIND...Westerly winds of 20 to 35 mph with local gusts near 55
  mph will continue to occur at times through this afternoon, then
  winds will ease this evening.

* SOME AFFECTED LOCATIONS...Port Angeles, Port Townsend,
  Coupeville, and Oak Harbor. 

* TIMING...The strongest winds will continue through this
  afternoon.

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ516-517-180200-
/O.CON.KSEW.WI.Y.0005.000000T0000Z-180218T0200Z/
North Coast-Central Coast-
1147 AM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING...

* WIND...Westerly winds will increase to 20 to 35 mph with local
  gusts near 50 mph ongoing, easing later this afternoon. 

* SOME AFFECTED LOCATIONS...Westport, Hoquiam, and La Push.

* TIMING...The strongest winds will occur from now through early
  afternoon. Winds will slowly ease late this afternoon.

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ001-180615-
/O.CON.KSEW.WI.Y.0005.000000T0000Z-180219T0200Z/
San Juan County-
1147 AM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST SUNDAY...

* WIND...Westerly winds 20 to 30 mph with local gusts near 45 mph
  will continue through early this afternoon, then ease
  temporarily late this afternoon and early this evening. 
  Northeast wind 20 to 35 mph with gusts to 50 mph will develop 
  late this evening and continue on Sunday. 

* SOME AFFECTED LOCATIONS...The San Juan Islands.

* TIMING...The westerly winds will peak early this afternoon. 
  Expect the northerly winds to peak Sunday afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ503-506-180615-
/O.CON.KSEW.WI.Y.0006.180218T0800Z-180219T0200Z/
Western Whatcom County-Western Skagit County-
1147 AM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
PST SUNDAY...

* WIND...Increasing from the north and northeast at 20 to 35 mph
  with local gusts to 55 mph late tonight and Sunday.

* SOME AFFECTED LOCATIONS...Lynden, Ferndale, Bellingham, Lummi 
  Island, and Anacortes. 

* TIMING...Winds are anticipated to peak from late Sunday morning
  through early Sunday afternoon.

* IMPACTS...Winds this strong can topple small trees, snap tree
  limbs, and cause local power outages. The strong winds along
  with temperatures near or slightly above freezing will set the
  stage for wind chill temperatures in the teens and lower 20s. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

www.weather.gov/seattle

475 
WWUS76 KSEW 172139
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
139 PM PST Sat Feb 17 2018

WAZ510-180500-
/O.UPG.KSEW.WI.Y.0005.000000T0000Z-180218T0500Z/
/O.NEW.KSEW.HW.W.0002.180217T2139Z-180218T0500Z/
Admiralty Inlet Area-
139 PM PST Sat Feb 17 2018

...HIGH WIND WARNING IN EFFECT UNTIL 9 PM PST THIS EVENING...

The National Weather Service in Seattle has issued a High Wind
Warning, which is in effect until 9 PM PST this evening. The Wind
Advisory is no longer in effect. 

* WIND...Westerly winds of 20 to 40 mph with local gusts near 60
  mph will continue to occur at times through this afternoon, then
  winds will ease this evening. 

* SOME AFFECTED LOCATIONS...Port Angeles, Port Townsend,
  Coupeville, and Oak Harbor. Strongest winds are being observed
  on Whidbey Island.

* TIMING...The strongest winds will continue through this
  afternoon, then start to ease this evening.

* IMPACTS...Snapped tree branches and 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.

&&

$$

WAZ516-517-180200-
/O.CON.KSEW.WI.Y.0005.000000T0000Z-180218T0200Z/
North Coast-Central Coast-
139 PM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING...

* WIND...Westerly winds 20 to 35 mph with local gusts near 50 mph
  ongoing, easing later this afternoon. 

* SOME AFFECTED LOCATIONS...Westport, Hoquiam, and La Push.

* TIMING...The strongest winds will occur from now through early 
  afternoon. Winds will slowly ease late this afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ504-509-511-556-558-559-180400-
/O.CON.KSEW.WI.Y.0005.000000T0000Z-180218T0400Z/
Southwest Interior-Tacoma Area-Hood Canal Area-
Bellevue and Vicinity-Seattle and Vicinity-Bremerton and Vicinity-
139 PM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST THIS EVENING...

* WIND...Southwest winds 20 to 35 mph with gusts near 50 mph 
  will continue through early afternoon. Winds will start to 
  slowly ease late this afternoon. 

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

* TIMING...The strongest winds will occur through early this 
  afternoon, with winds starting to slowly ease late this 
  afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ001-180545-
/O.CON.KSEW.WI.Y.0005.000000T0000Z-180219T0200Z/
San Juan County-
139 PM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST SUNDAY...

* WIND...Westerly winds 20 to 30 mph with local gusts near 45 
  mph will continue through early this afternoon, then ease 
  temporarily late this afternoon and early this evening. 
  Northeast wind 20 to 35 mph with gusts to 50 mph will develop 
  late this evening and continue on Sunday. 

* SOME AFFECTED LOCATIONS...The San Juan Islands.

* TIMING...The westerly winds will peak early this afternoon. 
  Expect the northerly winds to peak Sunday afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ514-180500-
/O.CON.KSEW.WI.Y.0005.000000T0000Z-180218T0500Z/
Eastern Strait of Juan de Fuca-
139 PM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST THIS EVENING...

* WIND...Westerly winds of 20 to 35 mph with local gusts near 55 
  mph will continue to occur at times through this afternoon, 
  then winds will ease this evening. 

* SOME AFFECTED LOCATIONS...Port Angeles, Port Townsend, 
  Coupeville, and Oak Harbor. 

* TIMING...The strongest winds will continue through this 
  afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ503-506-180545-
/O.CON.KSEW.WI.Y.0006.180218T0800Z-180219T0200Z/
Western Whatcom County-Western Skagit County-
139 PM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
PST SUNDAY...

* WIND...Increasing from the north and northeast at 20 to 35 mph 
  with local gusts to 55 mph late tonight and Sunday. 

* SOME AFFECTED LOCATIONS...Lynden, Ferndale, Bellingham, Lummi 
  Island, and Anacortes. 

* TIMING...Winds are anticipated to peak from late Sunday 
  morning through early Sunday afternoon. 

* IMPACTS...Winds this strong can topple small trees, snap tree 
  limbs, and cause local power outages. The strong winds along 
  with temperatures near or slightly above freezing will set the 
  stage for wind chill temperatures in the teens and lower 20s. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

www.weather.gov/seattle

246 
WWUS76 KSEW 180455
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
855 PM PST Sat Feb 17 2018

WAZ510-181600-
/O.CAN.KSEW.HW.W.0002.000000T0000Z-180218T0500Z/
/O.EXA.KSEW.WI.Y.0005.000000T0000Z-180219T0200Z/
Admiralty Inlet Area-
855 PM PST Sat Feb 17 2018

...WIND ADVISORY IN EFFECT UNTIL 6 PM PST SUNDAY...
...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Seattle has issued a Wind
Advisory, which is in effect until 6 PM PST Sunday. The High Wind
Warning has been cancelled. 

* WIND...Westerly winds will turn to the northeast and increase to
  20 to 35 mph with gusts to 50 mph late this evening and continue
  on Sunday.

* SOME AFFECTED LOCATIONS...Port Townsend...Port Ludlow.

* TIMING...The transition to northerly winds is expected after
  midnight with speeds peaking Sunday afternoon.

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

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.

&&

$$

WAZ514-180600-
/O.EXP.KSEW.WI.Y.0005.000000T0000Z-180218T0500Z/
Eastern Strait of Juan de Fuca-
855 PM PST Sat Feb 17 2018

...WIND ADVISORY WILL EXPIRE AT 9 PM PST THIS EVENING...

Sustained winds and gusts have fallen below wind advisory criteria
and as such...the advisory will be allowed to expire.

$$

WAZ001-181600-
/O.CON.KSEW.WI.Y.0005.000000T0000Z-180219T0200Z/
San Juan County-
855 PM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST SUNDAY...

* WIND...Westerly winds 20 to 30 mph with local gusts near 45 
  mph will continue through early this afternoon, then ease 
  temporarily late this afternoon and early this evening. 
  Northeast wind 20 to 35 mph with gusts to 50 mph will develop 
  late this evening and continue on Sunday. 

* SOME AFFECTED LOCATIONS...The San Juan Islands.

* TIMING...The westerly winds will peak early this afternoon. 
  Expect the northerly winds to peak Sunday afternoon. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ503-506-181600-
/O.CON.KSEW.WI.Y.0006.180218T0800Z-180219T0200Z/
Western Whatcom County-Western Skagit County-
855 PM PST Sat Feb 17 2018

...WIND ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM
PST SUNDAY...

* WIND...Increasing from the north and northeast at 20 to 35 mph 
  with local gusts to 55 mph late tonight and Sunday. 

* SOME AFFECTED LOCATIONS...Lynden, Ferndale, Bellingham, Lummi 
  Island, and Anacortes. 

* TIMING...Winds are anticipated to peak from late Sunday 
  morning through early Sunday afternoon. 

* IMPACTS...Winds this strong can topple small trees, snap tree 
  limbs, and cause local power outages. The strong winds along 
  with temperatures near or slightly above freezing will set the 
  stage for wind chill temperatures in the teens and lower 20s. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

www.weather.gov/seattle

787 
WWUS76 KSEW 181157
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
357 AM PST Sun Feb 18 2018

WAZ510-181300-
/O.CAN.KSEW.WI.Y.0005.000000T0000Z-180219T0200Z/
Admiralty Inlet Area-
357 AM PST Sun Feb 18 2018

...WIND ADVISORY IS CANCELLED FOR THE ADMIRALTY INLET AREA...

The National Weather Service in Seattle has cancelled the Wind
Advisory. 

Winds have become light and variable but will pick up out of the
northwest at 15 to 25 mph later this morning.

$$

WAZ503-506-182000-
/O.EXT.KSEW.WI.Y.0006.000000T0000Z-180219T0600Z/
Western Whatcom County-Western Skagit County-
357 AM PST Sun Feb 18 2018

...WIND ADVISORY NOW IN EFFECT FOR WESTERN WHATCOM AND WESTERN
SKAGIT COUNTIES UNTIL 10 PM PST THIS EVENING...

* WIND...Increasing from the north at 20 to 35 mph with local
  gusts to 55 mph this morning. 

* SOME AFFECTED LOCATIONS...Lynden, Ferndale, Bellingham, Lummi 
  Island, and Anacortes. 

* TIMING...Winds will peak this afternoon before gradually
  diminishing. 

* IMPACTS...Winds this strong can topple small trees, snap tree
  branches, and cause local power outages. The strong winds along
  with temperatures near or slightly above freezing today will
  make it feel as though temperatures are in the teens and lower
  20s. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ001-182000-
/O.EXT.KSEW.WI.Y.0005.000000T0000Z-180219T0600Z/
San Juan County-
357 AM PST Sun Feb 18 2018

...WIND ADVISORY NOW IN EFFECT FOR SAN JUAN COUNTY UNTIL 10 PM 
PST THIS EVENING...

* WIND...Winds will become northerly and increase to 20 to 35 mph
  with local gusts to 50 mph this morning. 

* SOME AFFECTED LOCATIONS...Places on the San Juan Islands that
  are prone to strong northerly winds such as Eastsound and Lopez
  Island.

* TIMING...Winds will peak this afternoon before gradually
  diminishing. 

* IMPACTS...Snapped tree branches and local power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

www.weather.gov/seattle

269 
WWUS76 KSEW 181941
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
1141 AM PST Sun Feb 18 2018

WAZ503-506-190800-
/O.EXT.KSEW.WI.Y.0006.000000T0000Z-180219T0800Z/
Western Whatcom County-Western Skagit County-
1141 AM PST Sun Feb 18 2018

...WIND ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PST TONIGHT...

* WIND...North to northeast 20 to 35 mph with gusts near 50 mph.

* SOME AFFECTED LOCATIONS...Lynden, Ferndale, Bellingham, Cherry
  Point, Sandy Point Shores, and Anacortes. 

* TIMING...Strong wind will continue through this afternoon, then
  start to ease this evening.

* IMPACTS...Winds this strong can topple small trees, snap tree
  branches, and cause local power outages. The strong winds and
  cold temperatures will combine for wind chill temperatures in 
  the teens and lower 20s.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

WAZ001-190800-
/O.EXT.KSEW.WI.Y.0005.000000T0000Z-180219T0800Z/
San Juan County-
1141 AM PST Sun Feb 18 2018

...WIND ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PST TONIGHT...

* WIND...North to northeast 20 to 35 mph with gusts near 50 mph.

* SOME AFFECTED LOCATIONS...The San Juan Islands.

* TIMING...Strong wind will continue through this afternoon, then
  start to ease this evening.

* IMPACTS...Winds this strong can topple small trees, snap tree
  branches, and cause local power outages. The strong winds and
  cold temperatures will combine for wind chill temperatures in 
  the teens and lower 20s.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 30 to 39 mph and/or
gusts of 45 to 57 mph are expected. Winds this strong can make
driving difficult, especially for high profile vehicles. Use
extra caution.

&&

$$

www.weather.gov/seattle

892 
WWUS76 KSEW 182120
NPWSEW

URGENT - WEATHER MESSAGE
National Weather Service Seattle WA
120 PM PST Sun Feb 18 2018

WAZ506-182230-
/O.CAN.KSEW.WI.Y.0006.000000T0000Z-180219T0800Z/
Western Skagit County-
120 PM PST Sun Feb 18 2018

...WIND ADVISORY IS CANCELLED...

The National Weather Service in Seattle has cancelled the Wind
Advisory.

$$

WAZ503-190800-
/O.UPG.KSEW.WI.Y.0006.000000T0000Z-180219T0800Z/
/O.NEW.KSEW.HW.W.0003.180218T2120Z-180219T0800Z/
Western Whatcom County-
120 PM PST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT PST TONIGHT...

The National Weather Service in Seattle has issued a High Wind
Warning, which is in effect until midnight PST tonight. The Wind
Advisory is no longer in effect. 

* WIND...North to northeast 25 to 40 mph with gusts near 60 mph.

* SOME AFFECTED LOCATIONS...Lynden, Ferndale, Bellingham, and
  Sandy Point Shores.

* TIMING...Strong wind will continue through this afternoon, 
  then start to ease this evening. 

* IMPACTS...Winds this strong can topple small trees, snap tree 
  branches, and cause local power outages. The strong winds and 
  cold temperatures will combine for wind chill temperatures in 
  the teens and lower 20s. 

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.

&&

$$

WAZ001-190800-
/O.UPG.KSEW.WI.Y.0005.000000T0000Z-180219T0800Z/
/O.NEW.KSEW.HW.W.0003.180218T2120Z-180219T0800Z/
San Juan County-
120 PM PST Sun Feb 18 2018

...HIGH WIND WARNING IN EFFECT UNTIL MIDNIGHT PST TONIGHT...

The National Weather Service in Seattle has issued a High Wind
Warning, which is in effect until midnight PST tonight. The Wind
Advisory is no longer in effect. 

* WIND...North to northeast 25 to 40 mph with gusts near 60 mph.

* SOME AFFECTED LOCATIONS...The San Juan Islands.

* TIMING...Strong wind will continue through this afternoon, 
  then start to ease this evening. 

* IMPACTS...Winds this strong can topple small trees, snap tree 
  branches, and cause local power outages. The strong winds and 
  cold temperatures will combine for wind chill temperatures in 
  the teens and lower 20s. 

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.

&&

$$

www.weather.gov/seattle

Area Forecast Discussion
National Weather Service Seattle WA
750 PM PST Fri Feb 16 2018

.SYNOPSIS...Windy conditions and heavy mountain snow are expected
Saturday as a deepening surface low tracks southeast through the
region. A modified arctic cold front will move southward through
Western Washington Sunday, bringing the possibility of lowland snow
and strong winds. Dry conditions are expected from late Sunday
through Tuesday with cold temperatures remaining in place. Another
system could slide in from the northwest around next Wednesday or
Thursday.

&&

.SHORT TERM...Entering into a very narrow 5-hour period with no
headlines in effect...living up to the cliched calm before the
storm. Current radar shows some shower activity...mainly relegated
to an area north of Admiralty Inlet and Everett and appears somewhat
convergence zone-ish in nature. There is another...far weaker
looking...convergence zone that seems to be fizzling out along the
King/Snohomish county line. So take a deep breath now because things
are about to get interesting.

On Saturday, a deepening low pressure center will move southeast
down Vancouver Island, then track east near Vancouver B.C. and
continue deepening as it moves to northeast Washington. Deepening
lows typically come with more lift and greater impact.
This...combined with a large swath of warm advection lift preceding
the low and northwest flow aloft also being great for enhancing
orographic lift will result in impressive snowfall totals over the
Cascades, including the main highway passes. The inherited Winter
Storm Warning looks to cover this well and will remain unaltered
this evening. Nearly two feet of snow is forecast at the passes in
24 hours. Avalanche danger will be elevated given the the heavy
amount of snow and strong wind in exposed locales.

Winds will be another factor as southwest gradients will really pick
up by mid-day Saturday. Models bring the HQM-SEA gradient to around
+4 to +4.5 mb, and the UIL-BLI gradient should reach near +5 mb
around mid-day Saturday. MOS data persists in bringing wind speeds
up to around 30 knots throughout the south Sound and Seattle/Tacoma
area...with gusts up to 45-50 mph entirely possible. Further north,
a strong westerly surge is expected through the Strait during the
afternoon. NW flow aloft favors such surges impinging on land areas
on the U.S. side of the Strait and the Admiralty Inlet area. All of
that being said...wind advisories are up for the aforementioned
areas and again...given consistent data...there appears to be no
reason for any alteration to these headlines this evening.

In the wake of the exiting low, a cold front will enter Western
Washington Sunday morning, aided by strong Fraser Outflow wind. The
Bellingham to Williams Lake gradient could exceed -20 mb on Sunday
morning, making this a strong outflow event. As 00Z data continues
to come in...will begin to weigh the need for additional headlines
to cover this feature in time for their inclusion in the morning
forecast package. This combination in addition to cold air aloft
will result in low-level convergence near the frontal boundary and
some instability which could support snow showers as the front moves
south. On average up and down the I-5 corridor, the official
forecast has about 1 inch of snow centered around Sunday morning. In
reality, some places may see more while others may see none.

The Port Angeles area appears to be most likely to get snow, given
northeast wind upsloping along the north-facing side of the Olympic
Mtns. The official forecast has 1 inch of snow near the water there,
but 3-6 inches above 500 feet along the Strait.

With all of the cold, dry continental air pouring out from the
interior of B.C., the air mass will dry out quickly later Sunday,
and the last showers will end over the Cascades on Sunday night.
Coldest air mass of the winter is expected, with Monday night being
the coldest resulting in what should be a widespread hard freeze.
Haner/SMR

.LONG TERM...From Previous Discussion...Northwest flow aloft will
continue from Tuesday through next Friday, keeping temps below
normal. A system will dive southeast around Wednesday or Thursday.
The air mass will moderate a bit as clouds and precip spread in, and
weak onshore flow develops. Still, a rain/snow mix is forecast over
the lowlands. QPF is modest, so only minor snow accumulation is
expected on higher hills near the Cascades. Haner

&&

.AVIATION...Strong northwest flow aloft will continue through
Saturday. Rain ahead of an approaching deepening low pressure system
is expected to reach W WA tonight and into Saturday morning with
showers and windy conditions expected afterward.

Cigs a mixed bag over the area this evening as all flight rules are
represented. VFR conditions most likely over the northern portions
of the area around BLI then turning more MVFR to IFR further south
with convergence zone showers present over portions of King and
Snohomish counties. Solid IFR conditions along the coast in advance
of the approaching system. Not expecting much in the way of
improvement for at least the next 12 hours. As winds ratchet up
Saturday afternoon...cigs may lift somewhat due to an increase in
onshore flow.

Winds are expected to rise to 25 to 30 knots with some gusts to 40
knots Saturday afternoon and evening. At this time the strongest
winds are likely to be near the Strait of Juan de Fuca in westerly
flow and southwesterly from about KSEA to KTCM. Strong and gusty
westerly winds can also be expected along the coast Saturday.
Albrecht/SMR

KSEA...Cigs this evening through Saturday morning look to be right
on the dividing line between MVFR and IFR...and will likely oscillate
between the two. Southerly winds 5-10 kts tonight. Southwest
sustained 20-30 knots with gusts to 40 knots will develop about 18Z
Saturday and continue into Saturday evening. SMR

&&

.MARINE...Winds will diminish this evening between systems. A
strengthening low will move southeast across northern portions of
the area Saturday afternoon. Expect widespread gales to develop from
west to east starting early Saturday morning. Gale warnings remain
in place for all waters, beginning over the coastal waters early
Saturday morning and spreading into the inland waters late Saturday
morning.

Strong northeast Fraser outflow wind will spread out across the
waters starting late Saturday night and continuing into Sunday
night. Expect gales over most of the waters with the outflow,
including Puget Sound and Hood Canal. This extended period of strong
winds may require current headlines be extended...but will wait to
evaluate that prospect for the early morning package once 00Z data
has come in completely.

Gradients will ease Sunday night and become light by later Monday
into Tuesday. Albrecht/SMR

&&

.HYDROLOGY...River flooding is not expected for the next 7 days.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Wind Advisory from 7 AM to 7 PM PST Saturday for Bellevue and
     Vicinity-Bremerton and Vicinity-Hood Canal Area-Seattle and
     Vicinity-Southwest Interior-Tacoma Area.

     Winter Storm Warning from midnight tonight to 6 AM PST Sunday
     for Cascades of Pierce and Lewis Counties-Cascades of
     Snohomish and King Counties-Cascades of Whatcom and Skagit
     Counties.

     Wind Advisory from 6 AM to 6 PM PST Saturday for Central Coast-
     North Coast.

     Winter Weather Advisory from midnight tonight to 6 PM PST
     Saturday for Olympics.

     Wind Advisory from 9 AM to 6 PM PST Saturday for San Juan County.

     Wind Advisory from 11 AM to 11 PM PST Saturday for Admiralty
     Inlet Area-Eastern Strait of Juan de Fuca.

     Wind Advisory from 8 AM to 6 PM PST Saturday for Western Strait
     of Juan De Fuca.

PZ...Small Craft Advisory for rough bar from noon Saturday to 3 AM
     PST Sunday for Grays Harbor Bar.

     Gale Warning from 4 AM Saturday to 3 AM PST Sunday 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.

     Gale Warning from 10 AM Saturday to 3 AM PST Sunday for
     Admiralty Inlet-Central U.S. Waters Strait Of Juan De Fuca-
     East Entrance U.S. Waters Strait Of Juan De Fuca-Northern
     Inland Waters Including The San Juan Islands-Puget Sound
     and Hood Canal-West Entrance U.S. Waters Strait Of Juan De
     Fuca.

&&

www.weather.gov/seattle