Alert archive / Washington / Wind Chill Advisories in 2021
Wind Chill Advisory 1, NWS Seattle, WA
NWS Seattle, WA issued this wind chill advisory at Dec 25, 2021, 3:55 PM PST for San Juan County, Washington. It took effect at Dec 25, 2021, 10:00 PM PST. It was in force for 36 hr.
The area
The counties it named.
The facts
- Issued
- Dec 25, 2021, 3:55 PM PST (23:55 UTC)
- In effect from
- Dec 25, 2021, 10:00 PM PST
- Expired
- Dec 27, 2021, 10:00 AM PST
- In force
- 36 hr
- Issued by
- NWS Seattle, WA
County San Juan County, WA
The radar
The Seattle radar (KATX), 54 km from the middle of the area, began a volume at 23:58 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Quillayute State, WA (KUIL), launched 12:00Z, 11.9 hours before the alert went out and 127 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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
8 follow-up statements
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. && $$ http://www.weather.gov/seattle
653 WWUS46 KSEW 261403 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 603 AM PST Sun Dec 26 2021 WAZ507-511-556-558-559-262300- /O.UPG.KSEW.WW.Y.0039.000000T0000Z-211227T0000Z/ /O.NEW.KSEW.WS.W.0019.211226T1403Z-211226T2300Z/ Everett and Vicinity-Hood Canal Area-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- including Everett, Lynnwood, Marysville, Stanwood, Shelton, Seabeck, Belfair, Brinnon, Bellevue, Bothell, Kenmore, Mill Creek, Clearview, Kirkland, Newcastle, Redmond, Sammamish, Issaquah, Seattle, White Center, Tukwila, Renton, Burien, Des Moines, Kent, Federal Way, Bremerton, Poulsbo, and Indianola 603 AM PST Sun Dec 26 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Heavy snow continued. Additional snow accumulations of 2 to 5 inches. * WHERE...Portions of northwest and west central Washington. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Heaviest snow should be this morning with lighter snow showers in the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest road conditions in Washington state, call 5 1 1. && $$ WAZ001-262300- /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ /O.CON.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/ San Juan County- including Friday Harbor and Eastsound 603 AM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * 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. && $$ WAZ503-262300- /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ /O.CON.KSEW.WW.Y.0040.000000T0000Z-211226T1800Z/ Western Whatcom County- including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 603 AM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...For the Winter Weather Advisory, snow continued. Additional snow accumulations of up to one inch. Winds gusting as high as 40 mph. For the Wind Chill Advisory, very cold wind chills continued. Wind chills as low as 10 below zero. * WHERE...Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, and Sumas. * WHEN...For the Winter Weather Advisory, until 10 AM PST this morning. For the Wind Chill Advisory, until 10 AM PST Monday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. For the latest road conditions in Washington state, call 5 1 1. && $$ WAZ504-509-512-555-262300- /O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T0000Z/ Southwest Interior-Tacoma Area-Lower Chehalis Valley Area- East Puget Sound Lowlands- including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester, Centralia, Toledo, Tacoma, Fife, DuPont, Puyallup, 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, and Eatonville 603 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...Tacoma and vicinity, including Vaughn, Gig Harbor, Fox Island, Anderson Island, DuPont, Puyallup, and Spanaway, East Puget Sound Lowlands from Snohomish County to Pierce County, including Arlington, Gold Bar, Duvall, Snoqualmie, Buckley, and Eatonville, Far southwest Mason County and the interior lowlands of Grays Harbor County, including Matlock, McCleary, and Montesano and Lowlands of Thurston, western Lewis, and far southeast Mason Counties, including Harstine Island, Olympia, Centralia, and Toledo. * 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. && $$ WAZ506-510-514>517-261800- /O.CON.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/ Western Skagit County-Admiralty Inlet Area- Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca- North Coast-Central Coast- including Burlington, Mount Vernon, Sedro-Woolley, La Conner, Conway, Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, Port Angeles, Clallam Bay, Joyce, Sekiu, Beaver, Clearwater, Forks, Neah Bay, Ozette, Queets, Aberdeen, Hoquiam, Westport, Ocean Shores, and Humptulips 603 AM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Snow continued. Additional snow accumulations of up to two inches. * WHERE...Portions of northwest Washington. * WHEN...Until 10 AM PST this morning. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ 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 603 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, 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 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. && $$ http://www.weather.gov/seattle
215 WWUS46 KSEW 261745 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 945 AM PST Sun Dec 26 2021 WAZ001-270145- /O.EXP.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/ /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ San Juan County- including Friday Harbor and Eastsound 945 AM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... * WHAT...Very cold wind chills continued. Wind chills as low as 5 below zero. * WHERE...San Juan County, including Stuart Island, Waldron Island, Orcas Island, San Juan Island, Lopez Island, Blakely Island, and Decatur Island. * WHEN...Until 10 AM PST Monday. * IMPACTS...Additional light snow this morning with up to 0.5" possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ WAZ516-517-261845- /O.EXP.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 945 AM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... Snow has tapered off for the coast. Dry weather through tonight. $$ WAZ567>569-261845- /O.EXP.KSEW.WW.Y.0039.000000T0000Z-211226T1800Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Concrete, Hamilton, Lyman, Maple Falls, Deming, Newhalem, Darrington, Baring, Stevens Pass, Skykomish, Snoqualmie Pass, Morton, Ashford, Packwood, Randle, Paradise, and Longmire 945 AM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING ABOVE 500 FEET... Light snow through today with additional amounts of 1 to 3 possible. $$ WAZ507-511-556-558-559-262300- /O.CON.KSEW.WS.W.0019.000000T0000Z-211226T2300Z/ Everett and Vicinity-Hood Canal Area-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- including Everett, Lynnwood, Marysville, Stanwood, Shelton, Seabeck, Belfair, Brinnon, 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 945 AM PST Sun Dec 26 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Heavy snow continued. Additional snow accumulations of up to three inches possible. * WHERE...Portions of northwest and west central Washington. * WHEN...Until 3 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Snow will taper off this afternoon. 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. && $$ WAZ503-270145- /O.EXT.KSEW.WW.Y.0040.000000T0000Z-211226T2300Z/ /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ Western Whatcom County- including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 945 AM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * WHAT...For the Winter Weather Advisory, snow continued. Additional snow accumulations of up to two inches. For the Wind Chill Advisory, very cold wind chills continued. Wind chills as low as 10 below zero. * WHERE...Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, and Sumas. * WHEN...For the Winter Weather Advisory, until 3 PM PST this afternoon. For the Wind Chill Advisory, until 10 AM PST Monday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. For the latest road conditions in Washington state, call 5 1 1. && $$ WAZ504-506-509-510-512-514-515-555-262300- /O.EXT.KSEW.WW.Y.0039.000000T0000Z-211226T2300Z/ Southwest Interior-Western Skagit County-Tacoma Area- Admiralty Inlet Area-Lower Chehalis Valley Area- Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca- East Puget Sound Lowlands- including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester, Centralia, Toledo, Burlington, Mount Vernon, Sedro-Woolley, La Conner, Conway, Tacoma, Fife, DuPont, Puyallup, Port Townsend, Oak Harbor, Coupeville, Langley, Montesano, Elma, McCleary, Sequim, Port Angeles, Clallam Bay, Joyce, Sekiu, 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, and Eatonville 945 AM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Snow continued. Additional snow accumulations of up to 2 inches. * WHERE...Portions of northwest and west central Washington. * WHEN...Until 3 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. && $$ http://www.weather.gov/seattle
598 WWUS46 KSEW 262239 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 239 PM PST Sun Dec 26 2021 WAZ507-511-556-558-559-262345- /O.CAN.KSEW.WS.W.0019.000000T0000Z-211226T2300Z/ Everett and Vicinity-Hood Canal Area-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- 239 PM PST Sun Dec 26 2021 ...WINTER STORM WARNING IS CANCELLED... Snow showers will continue to subside. $$ WAZ503-270645- /O.CAN.KSEW.WW.Y.0040.000000T0000Z-211226T2300Z/ /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ Western Whatcom County- including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 239 PM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER WEATHER ADVISORY IS CANCELLED... * WHAT...Very cold wind chills continued. Wind chills as low as 20 below zero. Snow showers will continue to subside, but blowing snow will remain a concern. * WHERE...Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, and Sumas. * WHEN...Until 10 AM PST Monday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ WAZ504-506-509-512-555-262345- /O.CAN.KSEW.WW.Y.0039.000000T0000Z-211226T2300Z/ Southwest Interior-Western Skagit County-Tacoma Area- Lower Chehalis Valley Area-East Puget Sound Lowlands- 239 PM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow showers will continue to subside. $$ WAZ510-514-270645- /O.EXA.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ /O.EXT.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Admiralty Inlet Area-Eastern Strait of Juan de Fuca- including Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, and Port Angeles 239 PM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...For the Winter Weather Advisory, snow shower will continue. Additional snow accumulations of 1 to 3 inches. For the Wind Chill Advisory, very cold wind chills continued. Wind chills as low as 5 below zero. * WHERE...Admiralty Inlet Area, including Port Townsend, Whidbey Island, and Camano Island and Eastern Strait of Juan de Fuca lowlands, including Port Angeles, Sequim, and Blyn. * WHEN...For the Winter Weather Advisory, until 4 AM PST Monday. For the Wind Chill Advisory, until 10 AM PST Monday. * IMPACTS...Plan on slippery road conditions. The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. 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. && $$ WAZ515-270645- /O.EXT.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Western Strait of Juan De Fuca- including Clallam Bay, Joyce, and Sekiu 239 PM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Snow showers will continue. Additional snow accumulations of up to 3 inches. * WHERE...Western Strait of Juan de Fuca lowlands, including Sekiu, Clallam Bay, and Joyce. * WHEN...Until 4 AM PST Monday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ WAZ001-270645- /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ San Juan County- including Friday Harbor and Eastsound 239 PM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * WHAT...Very cold wind chills continued. 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...Until 10 AM PST Monday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ http://www.weather.gov/seattle
180 WWUS46 KSEW 270227 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 627 PM PST Sun Dec 26 2021 WAZ001-503-271030- /O.UPG.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ /O.NEW.KSEW.WC.W.0001.211227T0300Z-211227T1800Z/ San Juan County-Western Whatcom County- including Friday Harbor, Eastsound, Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 627 PM PST Sun Dec 26 2021 ...WIND CHILL WARNING IN EFFECT UNTIL 10 AM PST MONDAY... * WHAT...Dangerously cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...San Juan County, including Stuart Island, Waldron Island, Orcas Island, San Juan Island, Lopez Island, Blakely Island, and Decatur Island and Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, and Sumas. * WHEN...Until 10 AM PST Monday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ WAZ510-514-271030- /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ /O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Admiralty Inlet Area-Eastern Strait of Juan de Fuca- including Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, and Port Angeles 627 PM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...For the Winter Weather Advisory, snow continued. Additional snow accumulations of up to two inches. For the Wind Chill Advisory, very cold wind chills continued. Wind chills as low as 5 below zero. * WHERE...Admiralty Inlet Area, including Port Townsend, Whidbey Island, and Camano Island and Eastern Strait of Juan de Fuca lowlands, including Port Angeles, Sequim, and Blyn. * WHEN...For the Winter Weather Advisory, until 4 AM PST Monday. 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. && $$ WAZ515-271030- /O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Western Strait of Juan De Fuca- including Clallam Bay, Joyce, and Sekiu 627 PM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Snow continued. Additional snow accumulations of up to two inches. * WHERE...Western Strait of Juan de Fuca lowlands, including Sekiu, Clallam Bay, and Joyce. * WHEN...Until 4 AM PST Monday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
908 WWUS46 KSEW 270310 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 710 PM PST Sun Dec 26 2021 WAZ001-503-271115- /O.CON.KSEW.WC.W.0001.000000T0000Z-211227T1800Z/ San Juan County-Western Whatcom County- including Friday Harbor, Eastsound, Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 710 PM PST Sun Dec 26 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... * WHAT...Dangerously cold wind chills continued. Wind chills as low as 20 below zero. * WHERE...San Juan County, including Stuart Island, Waldron Island, Orcas Island, San Juan Island, Lopez Island, Blakely Island, and Decatur Island and Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, and Sumas. * WHEN...Until 10 AM PST Monday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ WAZ504-512-517-271115- /O.EXB.KSEW.WW.Y.0039.000000T0000Z-211227T1400Z/ Southwest Interior-Lower Chehalis Valley Area-Central Coast- including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester, Centralia, Toledo, Montesano, Elma, McCleary, Aberdeen, Hoquiam, Westport, Ocean Shores, and Humptulips 710 PM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM PST MONDAY... * WHAT...Snow continued. Additional snow accumulations of up to two inches. * WHERE...Lowlands of Thurston, western Lewis, and far southeast Mason Counties, including Harstine Island, Olympia, Centralia, and Toledo, Far southwest Mason County and the interior lowlands of Grays Harbor County, including Matlock, McCleary, and Montesano and Central coast, including Pacific Beach, Aberdeen, and Westport. * WHEN...Until 6 AM PST Monday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ WAZ510-514-271115- /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ /O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Admiralty Inlet Area-Eastern Strait of Juan de Fuca- including Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, and Port Angeles 710 PM PST Sun Dec 26 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST MONDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...For the Winter Weather Advisory, snow continued. Additional snow accumulations of up to one inch. For the Wind Chill Advisory, very cold wind chills continued. Wind chills as low as 5 below zero. * WHERE...Eastern Strait of Juan de Fuca lowlands, including Port Angeles, Sequim, and Blyn and Admiralty Inlet Area, including Port Townsend, Whidbey Island, and Camano Island. * WHEN...For the Winter Weather Advisory, until 4 AM PST Monday. 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. && $$ WAZ515-271115- /O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Western Strait of Juan De Fuca- including Clallam Bay, Joyce, and Sekiu 710 PM PST Sun Dec 26 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Snow continued. Additional snow accumulations of up to one inch. * WHERE...Western Strait of Juan de Fuca lowlands, including Sekiu, Clallam Bay, and Joyce. * WHEN...Until 4 AM PST Monday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
979 WWUS46 KSEW 271058 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 258 AM PST Mon Dec 27 2021 WAZ515-271200- /O.CAN.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Western Strait of Juan De Fuca- 258 AM PST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... $$ WAZ001-503-271800- /O.CON.KSEW.WC.W.0001.000000T0000Z-211227T1800Z/ San Juan County-Western Whatcom County- including Friday Harbor, Eastsound, Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 258 AM PST Mon Dec 27 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Dangerously cold wind chills continued. Wind chills as low as 20 below zero. * WHERE...San Juan County, including Stuart Island, Waldron Island, Orcas Island, San Juan Island, Lopez Island, Blakely Island, and Decatur Island and Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, and Sumas. * WHEN...Until 10 AM PST this morning. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ WAZ510-514-271800- /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ /O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T1200Z/ Admiralty Inlet Area-Eastern Strait of Juan de Fuca- including Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, and Port Angeles 258 AM PST Mon Dec 27 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... * WHAT...For the Winter Weather Advisory, snow showers continued. Additional snow accumulations of up to an inch. For the Wind Chill Advisory, very cold wind chills continued. Wind chills as low as 5 below zero. * WHERE...Eastern Strait of Juan de Fuca lowlands, including Port Angeles, Sequim, and Blyn and Admiralty Inlet Area, including Port Townsend, Whidbey Island, and Camano Island. * WHEN...For the Winter Weather Advisory, until 4 AM PST early this morning. For the Wind Chill Advisory, until 10 AM PST this morning. * 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. && $$ WAZ504-512-517-271400- /O.CON.KSEW.WW.Y.0039.000000T0000Z-211227T1400Z/ Southwest Interior-Lower Chehalis Valley Area-Central Coast- including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester, Centralia, Toledo, Montesano, Elma, McCleary, Aberdeen, Hoquiam, Westport, Ocean Shores, and Humptulips 258 AM PST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS MORNING... * WHAT...Snow continued. Additional snow accumulations of up to one inch. * WHERE...Far southwest Mason County and the interior lowlands of Grays Harbor County, including Matlock, McCleary, and Montesano, Central coast, including Pacific Beach, Aberdeen, and Westport and Lowlands of Thurston, western Lewis, and far southeast Mason Counties, including Harstine Island, Olympia, Centralia, and Toledo. * WHEN...Until 6 AM PST early this morning. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
781 WWUS46 KSEW 271401 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 601 AM PST Mon Dec 27 2021 WAZ504-512-517-271515- /O.EXP.KSEW.WW.Y.0039.000000T0000Z-211227T1400Z/ Southwest Interior-Lower Chehalis Valley Area-Central Coast- including Lacey, Olympia, Tumwater, Yelm, Grand Mound, Rochester, Centralia, Toledo, Montesano, Elma, McCleary, Aberdeen, Hoquiam, Westport, Ocean Shores, and Humptulips 601 AM PST Mon Dec 27 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM PST EARLY THIS MORNING... Snow showers have tapered and mostly ended. No additional accumulations are expected this morning. $$ WAZ001-503-271800- /O.CON.KSEW.WC.W.0001.000000T0000Z-211227T1800Z/ San Juan County-Western Whatcom County- including Friday Harbor, Eastsound, Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 601 AM PST Mon Dec 27 2021 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Dangerously cold wind chills continued. Wind chills as low as 20 below zero. * WHERE...San Juan County, including Stuart Island, Waldron Island, Orcas Island, San Juan Island, Lopez Island, Blakely Island, and Decatur Island and Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, and Sumas. * WHEN...Until 10 AM PST this morning. * IMPACTS...The cold wind chills could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ WAZ510-514-271800- /O.CON.KSEW.WC.Y.0001.000000T0000Z-211227T1800Z/ Admiralty Inlet Area-Eastern Strait of Juan de Fuca- including Port Townsend, Oak Harbor, Coupeville, Langley, Sequim, and Port Angeles 601 AM PST Mon Dec 27 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Very cold wind chills continued. Wind chills as low as 5 below zero. * WHERE...Eastern Strait of Juan de Fuca lowlands, including Port Angeles, Sequim, and Blyn and Admiralty Inlet Area, including Port Townsend, Whidbey Island, and Camano Island. * WHEN...Until 10 AM PST this morning. * IMPACTS...Frost bite and hypothermia are possible if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ http://www.weather.gov/seattle
What forecasters said that day
The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Seattle, WA wrote its last area forecast discussion before this wind chill advisory went out at Dec 25, 9:33 AM PST, 6 hours 22 minutes earlier.
Area forecast discussion, Dec 25, 9:33 AM PST, 6 hours 22 minutes before
Area Forecast Discussion
National Weather Service Seattle WA
933 AM PST Sat Dec 25 2021
.UPDATE...Snow and rain across much of the area this morning, the
the best chance for accumulating snow being recorded across areas
of Whatcom/Skagit County with a heavy band over portions of these
areas. Activity is more scattered along the coast and across
southern areas, with light wet snow accumulations with the
heaviest shower activity into this evening. Winds will be strong
across Whatcom County. Winter Weather Advisory for much of the
lowlands with Winter Storm Warning for areas of northern
Olympics and Whatcom/Island/Skagit.
&&
.SYNOPSIS...Areas of lowland snow through Sunday with colder
temperatures. Dry and cold weather for Monday. Cold Tuesday and
Wednesday with a weather system moving along the coast Tuesday.
Temperatures will increase a bit Thursday with another weather
system potentially bringing snow to Western Washington.
&&
.SHORT TERM /TODAY THROUGH MONDAY/...An upper trough just off the
coast will keep the weather showery today. It will be marginally
cold enough for snow or a rain/snow mix for most of the area
today. Winds will be southerly and temperatures slightly above
freezing. This should mostly limit lowland snow accumulations
today with the best chances for an inch or so over the higher
hills or in locally heavier shower bands that might set up.
The exception to this will be the Strait of Juan de Fuca and
Western Whatcom/Western Skagit Counties. Fraser outflow has
already begin over Western Whatcom County with colder air seeping
in. These northeast winds will also lead to upslope in the Strait
on the north side of the Olympics. Snow accumulations of 2-5
inches are possible in these areas today.
Tonight and Sunday look like the best chance for widespread snow
accumulations across Western Washington. A surface low will move
onshore over SW WA Sunday morning with winds turning northerly
all areas and modified arctic air moving into the area. It will
remain showery with the upper trough moving over the area.
Ensemble solutions suggest the mostly likely scenario is 1-3
inches for most areas with higher amounts possible in locally
heavier bands. As always, there is much uncertainty with exact
amounts but overall this does not seem like a big snowstorm for
most of the area. The Cascades will also be getting a good shot of
snow through Sunday with difficult driving conditions expected in
the passes.
Northerly flow aloft will quickly dry things out Sunday night
with the story then becoming cold weather. Highs today will be
mostly in the 30s, then mid 20s to lower 30s on Sunday. By Monday,
highs will be in the 20s all areas. Parts of Western Whatcom
County might have highs in the upper teens on Monday. Lows Monday
morning will be in the teens most areas with single digits for
Western Whatcom County.
In addition, increasing Fraser outflow will bring windy
conditions to Western Whatcom County, Wester Skagit County, and
the San Juan Islands the next few days. Gusts to 50 mph are
possible in these areas. Wind chills could drop to -5 to -10 over
Western Whatcom County on Sunday and perhaps as low as -15 Sunday
night/Monday morning.
There is also a small chance of thunderstorms near the coast
today and Sunday with the upper trough.
Finally, high astronomical tides and anomalously low atmospheric
pressure could lead to minor tidal overflow over Puget Sound
around the time of high tide today and again on Sunday. 16
.LONG TERM /TUESDAY THROUGH FRIDAY/...An upper short wave in the
north/northwest flow aloft will mostly pass to the west Monday
night and Tuesday but the coast and Southwest Interior could perhaps
get an inch of new snow from this glancing blow. Temperatures will
moderate a little but it will remain cold with highs in the mid
20s to lower 30s and lows mostly 15-25.
Wednesday should be another cold and dry day with northerly flow
aloft. There is enough spread in the ensembles to keep a mention
of a slight chance of snow in the forecast however. Temperatures
will be about the same as Tuesday.
A wetter and slightly warmer system will move into the area from
the northwest Wednesday night and Thursday. Highs are expected to
warm into the mid 30s to lower 40s with southerly winds developing
for most of the area. It's too far out to pin down rain/snow
details but a likely scenario is precipitation starting as snow
Wednesday night then gradually changing to rain on Thursday with
snow lingering longest in the usual interior cold pockets. Drier
northerly flow is expected on Friday in the wake of Thursday's
weather system. It will remain chilly with highs in the mid 30s
to lower 40s. 16
&&
.AVIATION...South to southwesterly flow aloft for much of the day
today as an upper level low digs in off the coast. The atmosphere
remains moist and generally stable.
Mix of cigs over W WA this morning as scattered showers remain in
place over much of the area. Most locations ranging MVFR to IFR,
however along the coast, starting to see some VFR conditions emerge.
Radar trend seems to support that given a temporary break in the
echoes, however given that the upper low is still in place and
echoes are still present over the coastal waters, safe to say that
lower cigs remain a possibility for those coastal terminals as these
showers make their way inland. Minimal improvement to cigs expected
over the TAF period, although as the low slowly moves east, some
lifting is possible Sunday afternoon.
Southerly winds to persist at 8-12 kts, becoming gusty to 20 kts at
times for areas across the southern Sound. Switch to northerly winds
expected between 06-09Z SUN. Worth pointing out that as southerly
surface winds transition to more northerly, the penetration of
colder air will allow for any precip associated with showers to
become either a wintery mix or snow, expected to be all snow by 12Z
Sunday morning. The exception to this will be BLI, where northerly
winds are already in place and, as such, showers there continue to
fall as snow.
KSEA...MVFR ceilings for the TAF period. Rain will continue at the
terminal through the day as winds are expected to remain southerly
at 7-12 kts. Winds may ease somewhat during the day before becoming
northerly later tonight (06-09Z). Temperatures at that time will be
cold enough that showers moving over the area will be in the form of
snow, with accumulations possible. 14/18
&&
.MARINE...A low pressure system will slowly fill over the area
today as a modified arctic front drops south through the region.
A small craft advisory remains in effect for the coastal waters
for high end small craft winds and seas above 10 feet. Winds
across the Northern Inland waters will increase late today as the
Fraser River outflow strengthens across the area. North/northeasterly
winds will persist throughout the weekend, likely maintaining
headlines across the majority of the area waters through early
next week. Precipitation will likely change over to snow across
the area waters today. With winds and temperatures well below
freezing tonight into early next week (especially over the
Northern Interior waters) freezing spray will become a concern and
will need to be monitored going forward. All that said, inherited
headlines and forecast look good and see no reason for an update for
the late morning forecast package. 14/18
&&
.HYDROLOGY...River flooding is unlikely for the next 7 days.
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Winter Weather Advisory until 4 PM PST Sunday for Bellevue and
Vicinity-Bremerton and Vicinity-Central Coast-East Puget
Sound Lowlands-Everett and Vicinity-Hood Canal Area-Lower
Chehalis Valley Area-North Coast-San Juan County-Seattle
and Vicinity-Southwest Interior-Tacoma Area.
Coastal Flood Advisory until 1 PM PST this afternoon for
Admiralty Inlet Area-Bremerton and Vicinity-Everett and
Vicinity-Hood Canal Area-Seattle and Vicinity-Tacoma Area.
Winter Weather Advisory until 4 AM PST Sunday for Cascades of
Pierce and Lewis Counties-Cascades of Snohomish and King
Counties-Cascades of Whatcom and Skagit Counties.
Wind Advisory until 4 AM PST Monday for Western Whatcom County.
Winter Storm Warning until 4 PM PST Sunday for Admiralty Inlet
Area-Eastern Strait of Juan de Fuca-Western Skagit County-
Western Strait of Juan De Fuca-Western Whatcom County.
Wind Advisory from 4 PM this afternoon to 4 AM PST Monday for
San Juan County-Western Skagit County.
PZ...Small Craft Advisory until 4 PM PST this afternoon for Grays
Harbor Bar-Puget Sound and Hood Canal.
Small Craft Advisory until 4 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-West Entrance U.S. Waters Strait Of
Juan De Fuca.
Small Craft Advisory until 4 PM PST Sunday for East Entrance
U.S. Waters Strait Of Juan De Fuca.
Gale Warning until 10 PM PST Sunday for Northern Inland Waters
Including The San Juan Islands.
Small Craft Advisory from 4 PM this afternoon to 4 PM PST Sunday
for Central U.S. Waters Strait Of Juan De Fuca.
Small Craft Advisory from 4 AM to 10 PM PST Sunday for Admiralty
Inlet-Puget Sound and Hood Canal.
&&
www.weather.gov/seattleThe office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 25, 3:13 AM PST | Wind Advisory | SEW | San Juan | 55 hr |
| Dec 25, 5:26 AM PST | Small Craft Advisory | SEW | 11 hr | |
| Dec 25, 2:55 PM PST | Heavy Freezing Spray Advisory | SEW | 43 hr |
Nearby
Wind Chill Advisories in Washington, 2021Every wind chill advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.