Alert archive / Washington / Winter Storm Warnings in 2021

Winter Storm Warning 18, NWS Seattle, WA

December 24, 2021

NWS Seattle, WA issued this winter storm warning at Dec 24, 2021, 3:44 PM PST. It took effect at Dec 25, 2021, 4:00 AM PST. It was in force for 23 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
Dec 24, 2021, 3:44 PM PST (23:44 UTC)
In effect from
Dec 25, 2021, 4:00 AM PST
Expired
Dec 26, 2021, 3:13 AM PST
In force
23 hr
Issued by
NWS Seattle, WA

The text

As transmitted.

625 
WWUS46 KSEW 242344
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
344 PM PST Fri Dec 24 2021

WAZ503-506-510-514-515-250745-
/O.UPG.KSEW.WS.A.0011.211225T0600Z-211226T1800Z/
/O.NEW.KSEW.WS.W.0018.211225T1200Z-211227T0000Z/
Western Whatcom County-Western Skagit County-Admiralty Inlet Area-
Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca-
including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, 
Sumas, Sudden Valley, Burlington, Mount Vernon, Sedro-Woolley, 
La Conner, Conway, Port Townsend, Oak Harbor, Coupeville, 
Langley, Sequim, Port Angeles, Clallam Bay, Joyce, and Sekiu
344 PM PST Fri Dec 24 2021

...WINTER STORM WARNING IN EFFECT FROM 4 AM SATURDAY TO 4 PM PST
SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 11 
  inches. Winds gusting as high as 40 mph.

* WHERE...Portions of northwest Washington.

* WHEN...From 4 AM Saturday to 4 PM PST Sunday.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Snow will most likely develop in showers
  and bands, leading to highly variable snow accumulations. The 
  best timing for heavier snow is Saturday afternoon into Sunday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ001-504-507-509-511-512-516-517-555-556-558-559-250745-
/O.EXB.KSEW.WW.Y.0039.211225T1200Z-211227T0000Z/
San Juan County-Southwest Interior-Everett and Vicinity-
Tacoma Area-Hood Canal Area-Lower Chehalis Valley Area-
North Coast-Central Coast-East Puget Sound Lowlands-
Bellevue and Vicinity-Seattle and Vicinity-Bremerton and Vicinity-
including Friday Harbor, Eastsound, Lacey, Olympia, Tumwater, 
Yelm, Grand Mound, Rochester, Centralia, Toledo, Everett, 
Lynnwood, Marysville, Stanwood, Tacoma, Fife, DuPont, Puyallup, 
Shelton, Seabeck, Belfair, Brinnon, Montesano, Elma, McCleary, 
Beaver, Clearwater, Forks, Neah Bay, Ozette, Queets, Aberdeen, 
Hoquiam, Westport, Ocean Shores, Humptulips, Bonney Lake, 
Maple Valley, Monroe, Woodinville, Arlington, Granite Falls, 
Lake Stevens, Snohomish, Gold Bar, Duvall, Carnation, Fall City, 
Snoqualmie, North Bend, Covington, Black Diamond, Orting, 
Eatonville, Bellevue, Bothell, Kenmore, Mill Creek, Clearview, 
Kirkland, Newcastle, Redmond, Sammamish, Issaquah, Seattle, 
White Center, Tukwila, Renton, Burien, Des Moines, Kent, 
Federal Way, Bremerton, Poulsbo, and Indianola
344 PM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM SATURDAY TO 4 PM
PST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 9 
  inches.

* WHERE...Portions of northwest and west central Washington.

* WHEN...From 4 AM Saturday to 4 PM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

* ADDITIONAL DETAILS...Snow will most likely develop in showers
  and bands, leading to highly variable snow accumulations. The
  best timing for heavier snow is Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ567>569-250745-
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211226T1200Z/
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
Cascades of Pierce and Lewis Counties-
including Concrete, Hamilton, Lyman, Maple Falls, Deming, 
Newhalem, Darrington, Baring, Stevens Pass, Skykomish, 
Snoqualmie Pass, Morton, Ashford, Packwood, Randle, Paradise, 
and Longmire
344 PM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
SUNDAY ABOVE 500 FEET...

* WHAT...Snow continued above 500 feet. Additional snow
  accumulations of 5 to 18 inches.

* WHERE...Cascade mountains and valleys of Pierce and Lewis 
  Counties, including the Crystal Mountain Ski Area, Paradise on 
  Mount Rainier, Ashford, Randle, and Packwood, Cascade 
  mountains and valleys of Snohomish and King Counties, 
  including Darrington, Index, Skykomish, Stevens Pass, and 
  Snoqualmie Pass and Cascade mountains and valleys of Whatcom 
  and Skagit Counties, including Maple Falls, the Mount Baker 
  Ski Area, Newhalem, Lyman, and Concrete.

* WHEN...Until 4 AM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

http://www.weather.gov/seattle
4 follow-up statements
386 
WWUS46 KSEW 250246
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
646 PM PST Fri Dec 24 2021

WAZ503-251315-
/O.EXB.KSEW.WW.Y.0039.211225T0246Z-211225T1200Z/
/O.CON.KSEW.WS.W.0018.211225T1200Z-211227T0000Z/
Western Whatcom County-
including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, 
Sumas, and Sudden Valley
646 PM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SATURDAY...
...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM SATURDAY TO
4 PM PST SUNDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. Total
  snow accumulations of 3 to 8 inches. Winds gusting as high as 40
  mph. For the Winter Weather Advisory, snow showers. Snow 
  accumulations of up to two inches.

* WHERE...Lowlands of western Whatcom County, including Point 
  Roberts, Lummi Island, Bellingham, and Sumas.

* WHEN...For the Winter Storm Warning, from 4 AM Saturday to 4 
  PM PST Sunday. For the Winter Weather Advisory, until 4 AM PST 
  Saturday.

* IMPACTS...Plan on difficult travel conditions.

* ADDITIONAL DETAILS...Snow will most likely develop in showers 
  and bands, leading to highly variable snow accumulations. The 
  best timing for heavier snow is Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ506-510-514-515-251315-
/O.CON.KSEW.WS.W.0018.211225T1200Z-211227T0000Z/
Western Skagit County-Admiralty Inlet Area-
Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca-
including Burlington, Mount Vernon, Sedro-Woolley, La Conner, 
Conway, Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, 
Port Angeles, Clallam Bay, Joyce, and Sekiu
646 PM PST Fri Dec 24 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM SATURDAY TO
4 PM PST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 3 to 
  11 inches. Winds gusting as high as 40 mph.

* WHERE...Portions of northwest Washington.

* WHEN...From 4 AM Saturday to 4 PM PST Sunday.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Snow will most likely develop in showers 
  and bands, leading to highly variable snow accumulations. The 
  best timing for heavier snow is Saturday afternoon into Sunday 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ001-504-507-509-511-512-516-517-555-556-558-559-251315-
/O.CON.KSEW.WW.Y.0039.211225T1200Z-211227T0000Z/
San Juan County-Southwest Interior-Everett and Vicinity-
Tacoma Area-Hood Canal Area-Lower Chehalis Valley Area-
North Coast-Central Coast-East Puget Sound Lowlands-
Bellevue and Vicinity-Seattle and Vicinity-Bremerton and Vicinity-
including Friday Harbor, Eastsound, Lacey, Olympia, Tumwater, 
Yelm, Grand Mound, Rochester, Centralia, Toledo, Everett, 
Lynnwood, Marysville, Stanwood, Tacoma, Fife, DuPont, Puyallup, 
Shelton, Seabeck, Belfair, Brinnon, Montesano, Elma, McCleary, 
Beaver, Clearwater, Forks, Neah Bay, Ozette, Queets, Aberdeen, 
Hoquiam, Westport, Ocean Shores, Humptulips, Bonney Lake, 
Maple Valley, Monroe, Woodinville, Arlington, Granite Falls, 
Lake Stevens, Snohomish, Gold Bar, Duvall, Carnation, Fall City, 
Snoqualmie, North Bend, Covington, Black Diamond, Orting, 
Eatonville, Bellevue, Bothell, Kenmore, Mill Creek, Clearview, 
Kirkland, Newcastle, Redmond, Sammamish, Issaquah, Seattle, 
White Center, Tukwila, Renton, Burien, Des Moines, Kent, 
Federal Way, Bremerton, Poulsbo, and Indianola
646 PM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SATURDAY
TO 4 PM PST SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 9 
  inches.

* WHERE...Portions of northwest and west central Washington.

* WHEN...From 4 AM Saturday to 4 PM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

* ADDITIONAL DETAILS...Snow will most likely develop in showers 
  and bands, leading to highly variable snow accumulations. The 
  best timing for heavier snow is Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ567>569-251315-
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211226T1200Z/
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
Cascades of Pierce and Lewis Counties-
including Concrete, Hamilton, Lyman, Maple Falls, Deming, 
Newhalem, Darrington, Baring, Stevens Pass, Skykomish, 
Snoqualmie Pass, Morton, Ashford, Packwood, Randle, Paradise, 
and Longmire
646 PM PST Fri Dec 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
SUNDAY ABOVE 500 FEET...

* WHAT...Snow continued above 500 feet. Additional snow 
  accumulations of 5 to 18 inches.

* WHERE...Cascade mountains and valleys of Pierce and Lewis 
  Counties, including the Crystal Mountain Ski Area, Paradise on 
  Mount Rainier, Ashford, Randle, and Packwood, Cascade 
  mountains and valleys of Snohomish and King Counties, 
  including Darrington, Index, Skykomish, Stevens Pass, and 
  Snoqualmie Pass and Cascade mountains and valleys of Whatcom 
  and Skagit Counties, including Maple Falls, the Mount Baker 
  Ski Area, Newhalem, Lyman, and Concrete.

* WHEN...Until 4 AM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

http://www.weather.gov/seattle
262 
WWUS46 KSEW 251113
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
313 AM PST Sat Dec 25 2021

WAZ503-260000-
/O.CON.KSEW.WS.W.0018.211225T1200Z-211227T0000Z/
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211225T1200Z/
Western Whatcom County-
including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, 
Sumas, and Sudden Valley
313 AM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY
THIS MORNING...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...For the Winter Storm Warning, heavy snow expected. 
  Total snow accumulations of 4 to 9 inches. Winds gusting as 
  high as 40 mph. For the Winter Weather Advisory, snow 
  continued. Additional snow accumulations of up to one inch.

* WHERE...Lowlands of western Whatcom County, including Point 
  Roberts, Lummi Island, Bellingham, and Sumas.

* WHEN...For the Winter Storm Warning, until 4 PM PST Sunday. 
  For the Winter Weather Advisory, until 4 AM PST early this 
  morning.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Snow will most likely develop in showers 
  and bands, leading to highly variable snow accumulations. The 
  best timing for heavier snow is Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ506-510-514-515-260000-
/O.CON.KSEW.WS.W.0018.211225T1200Z-211227T0000Z/
Western Skagit County-Admiralty Inlet Area-
Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca-
including Burlington, Mount Vernon, Sedro-Woolley, La Conner, 
Conway, Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, 
Port Angeles, Clallam Bay, Joyce, and Sekiu
313 AM PST Sat Dec 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 7 
  inches.

* WHERE...Western Strait of Juan de Fuca lowlands, including 
  Sekiu, Clallam Bay, and Joyce, Eastern Strait of Juan de Fuca 
  lowlands, including Port Angeles, Sequim, and Blyn, Lowlands 
  of western Skagit County, including Cypress Island, Guemes 
  Island, Anacortes, Mount Vernon, and La Conner and Admiralty 
  Inlet Area, including Port Townsend, Whidbey Island, and 
  Camano Island.

* WHEN...Until 4 PM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

* ADDITIONAL DETAILS...Snow will most likely develop in showers
  and bands, leading to highly variable snow accumulations. The
  best timing for heavier snow is Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ001-504-507-509-511-512-516-517-555-556-558-559-260000-
/O.CON.KSEW.WW.Y.0039.211225T1200Z-211227T0000Z/
San Juan County-Southwest Interior-Everett and Vicinity-
Tacoma Area-Hood Canal Area-Lower Chehalis Valley Area-
North Coast-Central Coast-East Puget Sound Lowlands-
Bellevue and Vicinity-Seattle and Vicinity-Bremerton and Vicinity-
including Friday Harbor, Eastsound, Lacey, Olympia, Tumwater, 
Yelm, Grand Mound, Rochester, Centralia, Toledo, Everett, 
Lynnwood, Marysville, Stanwood, Tacoma, Fife, DuPont, Puyallup, 
Shelton, Seabeck, Belfair, Brinnon, Montesano, Elma, McCleary, 
Beaver, Clearwater, Forks, Neah Bay, Ozette, Queets, Aberdeen, 
Hoquiam, Westport, Ocean Shores, Humptulips, Bonney Lake, 
Maple Valley, Monroe, Woodinville, Arlington, Granite Falls, 
Lake Stevens, Snohomish, Gold Bar, Duvall, Carnation, Fall City, 
Snoqualmie, North Bend, Covington, Black Diamond, Orting, 
Eatonville, Bellevue, Bothell, Kenmore, Mill Creek, Clearview, 
Kirkland, Newcastle, Redmond, Sammamish, Issaquah, Seattle, 
White Center, Tukwila, Renton, Burien, Des Moines, Kent, 
Federal Way, Bremerton, Poulsbo, and Indianola
313 AM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
SUNDAY...

* WHAT...Snow expected. Total snow accumulations of 2 to 7 
  inches.

* WHERE...Portions of northwest and west central Washington.

* WHEN...Until 4 PM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

* ADDITIONAL DETAILS...Snow will most likely develop in showers 
  and bands, leading to highly variable snow accumulations. The 
  best timing for heavier snow is Saturday night into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ567>569-260000-
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211226T1200Z/
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
Cascades of Pierce and Lewis Counties-
including Concrete, Hamilton, Lyman, Maple Falls, Deming, 
Newhalem, Darrington, Baring, Stevens Pass, Skykomish, 
Snoqualmie Pass, Morton, Ashford, Packwood, Randle, Paradise, 
and Longmire
313 AM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
SUNDAY ABOVE 500 FEET...

* WHAT...Snow continued above 500 feet. Additional snow 
  accumulations of 4 to 14 inches.

* WHERE...Cascade mountains and valleys of Pierce and Lewis 
  Counties, including the Crystal Mountain Ski Area, Paradise on 
  Mount Rainier, Ashford, Randle, and Packwood, Cascade 
  mountains and valleys of Snohomish and King Counties, 
  including Darrington, Index, Skykomish, Stevens Pass, and 
  Snoqualmie Pass and Cascade mountains and valleys of Whatcom 
  and Skagit Counties, including Maple Falls, the Mount Baker 
  Ski Area, Newhalem, Lyman, and Concrete.

* WHEN...Until 4 AM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

http://www.weather.gov/seattle
010 
WWUS46 KSEW 252355
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
355 PM PST Sat Dec 25 2021

WAZ503-261115-
/O.NEW.KSEW.WC.Y.0001.211226T0600Z-211227T1800Z/
/O.CON.KSEW.WS.W.0018.000000T0000Z-211227T0000Z/
Western Whatcom County-
including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, 
Sumas, and Sudden Valley
355 PM PST Sat Dec 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM
PST MONDAY...

* WHAT...For the Winter Storm Warning, heavy snow continued.
  Additional snow accumulations of 2 to 7 inches. Winds gusting 
  as high as 50 mph. For the Wind Chill Advisory, very cold wind 
  chills expected. Wind chills as low as 15 below zero.

* WHERE...Lowlands of western Whatcom County, including Point 
  Roberts, Lummi Island, Bellingham, and Sumas.

* WHEN...For the Winter Storm Warning, until 4 PM PST Sunday. 
  For the Wind Chill Advisory, from 10 PM this evening to 10 AM 
  PST Monday.

* IMPACTS...Plan on difficult travel conditions. Gusty winds 
  could bring down tree branches. The cold wind chills could 
  result in hypothermia if precautions are not taken.

* ADDITIONAL DETAILS...Heaviest snow through Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ506-510-514-515-261115-
/O.CON.KSEW.WS.W.0018.000000T0000Z-211227T0000Z/
Western Skagit County-Admiralty Inlet Area-
Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca-
including Burlington, Mount Vernon, Sedro-Woolley, La Conner, 
Conway, Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, 
Port Angeles, Clallam Bay, Joyce, and Sekiu
355 PM PST Sat Dec 25 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST SUNDAY...

* WHAT...Heavy snow continued. Additional snow accumulations of 2
  to 9 inches.

* WHERE...Western Strait of Juan de Fuca lowlands, including 
  Sekiu, Clallam Bay, and Joyce, Eastern Strait of Juan de Fuca 
  lowlands, including Port Angeles, Sequim, and Blyn, Lowlands 
  of western Skagit County, including Cypress Island, Guemes 
  Island, Anacortes, Mount Vernon, and La Conner and Admiralty 
  Inlet Area, including Port Townsend, Whidbey Island, and 
  Camano Island.

* WHEN...Until 4 PM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

* ADDITIONAL DETAILS...Heaviest snow through Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ001-261115-
/O.NEW.KSEW.WC.Y.0001.211226T0600Z-211227T1800Z/
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T0000Z/
San Juan County-
including Friday Harbor and Eastsound
355 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
SUNDAY...
...WIND CHILL ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM
PST MONDAY...

* WHAT...For the Winter Weather Advisory, snow continued.
  Additional snow accumulations of 2 to 5 inches. Winds gusting 
  as high as 50 mph. For the Wind Chill Advisory, very cold wind 
  chills expected. Wind chills as low as 10 below zero.

* WHERE...San Juan County, including Stuart Island, Waldron 
  Island, Orcas Island, San Juan Island, Lopez Island, Blakely 
  Island, and Decatur Island.

* WHEN...For the Winter Weather Advisory, until 4 PM PST Sunday. 
  For the Wind Chill Advisory, from 10 PM this evening to 10 AM 
  PST Monday.

* IMPACTS...Plan on slippery road conditions. Gusty winds could 
  bring down tree branches.

* ADDITIONAL DETAILS...Heaviest snow through Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ513-261115-
/O.EXB.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/
Olympics-
including Amanda Park, Quinault, and Hurricane Ridge
355 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST SUNDAY ABOVE
500 FEET...

* WHAT...Snow continued above 500 feet. Additional snow 
  accumulations of 2 to 9 inches.

* WHERE...Olympic mountains and valleys, including Hurricane 
  Ridge, Amanda Park, and Quinault.

* WHEN...Until 10 AM PST Sunday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ567>569-261115-
/O.EXT.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
Cascades of Pierce and Lewis Counties-
including Concrete, Hamilton, Lyman, Maple Falls, Deming, 
Newhalem, Darrington, Baring, Stevens Pass, Skykomish, 
Snoqualmie Pass, Morton, Ashford, Packwood, Randle, Paradise, 
and Longmire
355 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST SUNDAY
ABOVE 500 FEET...

* WHAT...Snow continued above 500 feet. Additional snow 
  accumulations of 2 to 7 inches.

* WHERE...Cascade mountains and valleys of Pierce and Lewis 
  Counties, including the Crystal Mountain Ski Area, Paradise on 
  Mount Rainier, Ashford, Randle, and Packwood, Cascade 
  mountains and valleys of Snohomish and King Counties, 
  including Darrington, Index, Skykomish, Stevens Pass, and 
  Snoqualmie Pass and Cascade mountains and valleys of Whatcom 
  and Skagit Counties, including Maple Falls, the Mount Baker 
  Ski Area, Newhalem, Lyman, and Concrete.

* WHEN...Until 10 AM PST Sunday.

* IMPACTS...Plan on slippery road conditions. The cold wind 
  chills as low as 20 below zero could result in hypothermia if 
  precautions are not taken.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ504-507-509-511-512-516-517-555-556-558-559-261115-
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T0000Z/
Southwest Interior-Everett and Vicinity-Tacoma Area-
Hood Canal Area-Lower Chehalis Valley Area-North Coast-
Central Coast-East Puget Sound Lowlands-Bellevue and Vicinity-
Seattle and Vicinity-Bremerton and Vicinity-
including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester,
Centralia, Toledo, Everett, Lynnwood, Marysville, Stanwood, 
Tacoma, Fife, DuPont, Puyallup, Shelton, Seabeck, Belfair, 
Brinnon, Montesano, Elma, McCleary, Beaver, Clearwater, Forks, 
Neah Bay, Ozette, Queets, Aberdeen, Hoquiam, Westport, 
Ocean Shores, Humptulips, Bonney Lake, Maple Valley, Monroe, 
Woodinville, Arlington, Granite Falls, Lake Stevens, Snohomish, 
Gold Bar, Duvall, Carnation, Fall City, Snoqualmie, North Bend, 
Covington, Black Diamond, Orting, Eatonville, Bellevue, Bothell, 
Kenmore, Mill Creek, Clearview, Kirkland, Newcastle, Redmond, 
Sammamish, Issaquah, Seattle, White Center, Tukwila, Renton, 
Burien, Des Moines, Kent, Federal Way, Bremerton, Poulsbo, 
and Indianola
355 PM PST Sat Dec 25 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
SUNDAY...

* WHAT...Snow continued. Additional snow accumulations of 1 to 5 
  inches.

* WHERE...Portions of northwest and west central Washington.

* WHEN...Until 4 PM PST Sunday.

* IMPACTS...Plan on difficult travel conditions.

* ADDITIONAL DETAILS...Snow will develop in bands, leading to
  highly variable snow accumulations. Heaviest snow will be this
  evening into Sunday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

http://www.weather.gov/seattle
059 
WWUS46 KSEW 261113
WSWSEW

URGENT - WINTER WEATHER MESSAGE
National Weather Service Seattle WA
313 AM PST Sun Dec 26 2021

WAZ503-262330-
/O.CAN.KSEW.WS.W.0018.000000T0000Z-211227T0000Z/
/O.NEW.KSEW.WW.Y.0040.211226T1113Z-211226T1800Z/
/O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/
Western Whatcom County-
including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, 
Sumas, and Sudden Valley
313 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Winter Weather Advisory, snow continued. 
  Additional snow accumulations of up to one inch. Winds gusting 
  as high as 40 mph. For the Wind Chill Advisory, very cold wind 
  chills continued. Wind chills as low as 10 below zero.

* WHERE...Lowlands of western Whatcom County, including Point 
  Roberts, Lummi Island, Bellingham, and Sumas.

* WHEN...For the Winter Weather Advisory, until 10 AM PST this 
  morning. For the Wind Chill Advisory, until 10 AM PST Monday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ506-510-514-515-261800-
/O.CAN.KSEW.WS.W.0018.000000T0000Z-211227T0000Z/
/O.EXA.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/
Western Skagit County-Admiralty Inlet Area-
Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca-
including Burlington, Mount Vernon, Sedro-Woolley, La Conner, 
Conway, Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, 
Port Angeles, Clallam Bay, Joyce, and Sekiu
313 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...Snow continued. Additional snow accumulations of up to 
  two inches.

* WHERE...Lowlands of western Skagit County, including Cypress 
  Island, Guemes Island, Anacortes, Mount Vernon, and La Conner, 
  Admiralty Inlet Area, including Port Townsend, Whidbey Island, 
  and Camano Island, Eastern Strait of Juan de Fuca lowlands, 
  including Port Angeles, Sequim, and Blyn and Western Strait of 
  Juan de Fuca lowlands, including Sekiu, Clallam Bay, and Joyce.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ513-261215-
/O.CAN.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/
Olympics-
313 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

$$

WAZ001-262330-
/O.EXT.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/
/O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/
San Juan County-
including Friday Harbor and Eastsound
313 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY...

* WHAT...For the Winter Weather Advisory, snow continued. 
  Additional snow accumulations of up to one inch. Winds gusting 
  as high as 40 mph. For the Wind Chill Advisory, very cold wind 
  chills continued. Wind chills as low as 5 below zero.

* WHERE...San Juan County, including Stuart Island, Waldron 
  Island, Orcas Island, San Juan Island, Lopez Island, Blakely 
  Island, and Decatur Island.

* WHEN...For the Winter Weather Advisory, until 10 AM PST this 
  morning. For the Wind Chill Advisory, until 10 AM PST Monday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ516-517-261800-
/O.EXT.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/
North Coast-Central Coast-
including Beaver, Clearwater, Forks, Neah Bay, Ozette, Queets, 
Aberdeen, Hoquiam, Westport, Ocean Shores, and Humptulips
313 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* WHAT...Snow continued. Additional snow accumulations of up to 
  one inch.

* WHERE...North coast, including Neah Bay, Forks, and Queets and 
  Central coast, including Pacific Beach, Aberdeen, and Westport.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ504-507-509-511-512-555-556-558-559-262330-
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T0000Z/
Southwest Interior-Everett and Vicinity-Tacoma Area-
Hood Canal Area-Lower Chehalis Valley Area-
East Puget Sound Lowlands-Bellevue and Vicinity-
Seattle and Vicinity-Bremerton and Vicinity-
including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester,
Centralia, Toledo, Everett, Lynnwood, Marysville, Stanwood, 
Tacoma, Fife, DuPont, Puyallup, Shelton, Seabeck, Belfair, 
Brinnon, Montesano, Elma, McCleary, Bonney Lake, Maple Valley, 
Monroe, Woodinville, Arlington, Granite Falls, Lake Stevens, 
Snohomish, Gold Bar, Duvall, Carnation, Fall City, Snoqualmie, 
North Bend, Covington, Black Diamond, Orting, Eatonville, 
Bellevue, Bothell, Kenmore, Mill Creek, Clearview, Kirkland, 
Newcastle, Redmond, Sammamish, Issaquah, Seattle, White Center, 
Tukwila, Renton, Burien, Des Moines, Kent, Federal Way, 
Bremerton, Poulsbo, and Indianola
313 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Snow continued. Additional snow accumulations of 1 to 3 
  inches.

* WHERE...Portions of northwest and west central Washington.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

WAZ567>569-261800-
/O.CON.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/
Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and King Counties-
Cascades of Pierce and Lewis Counties-
including Concrete, Hamilton, Lyman, Maple Falls, Deming, 
Newhalem, Darrington, Baring, Stevens Pass, Skykomish, 
Snoqualmie Pass, Morton, Ashford, Packwood, Randle, Paradise, 
and Longmire
313 AM PST Sun Dec 26 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING ABOVE 500 FEET...

* WHAT...Snow continued above 500 feet. Additional snow 
  accumulations of up to two inches.

* WHERE...Cascade mountains and valleys of Pierce and Lewis
  Counties, including the Crystal Mountain Ski Area, Paradise on
  Mount Rainier, Cascade mountains and valleys of Snohomish and 
  King Counties, including Darrington, Index, Skykomish, Stevens 
  Pass, and Snoqualmie Pass and Cascade mountains and valleys of 
  Whatcom and Skagit Counties, including Maple Falls, the Mount 
  Baker Ski Area, Newhalem, Lyman, and Concrete.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

For the latest road conditions in Washington state, call 5 1 1.

&&

$$

http://www.weather.gov/seattle

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 24, 2:20 AM PSTGale WarningSEW3 days
Dec 24, 9:22 AM PSTWinter Storm WatchSEW6 hr
Dec 24, 9:22 AM PSTWinter Weather AdvisorySEWSan Juan69 hr
Dec 24, 3:13 PM PSTSmall Craft AdvisorySEW69 hr

Nearby

Winter Storm Warnings in Washington, 2021Every winter storm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.