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Home Return to list Winter Weather Advisory 0004 Issued by the Seattle Forecast Office
Action: New Issued At: 2026-02-21 16:33:26 409 WWUS46 KSEW 212233 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 233 PM PST Sat Feb 21 2026 WAZ301-302-220645- /O.NEW.KSEW.WW.Y.0004.260223T0600Z-260223T1800Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 233 PM PST Sat Feb 21 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM SUNDAY TO 10 AM PST MONDAY... * WHAT...Snow expected. Total snow accumulations up to 5 to 10 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 10 PM Sunday to 10 AM PST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 41 Action: Continued Issued At: 2026-02-22 00:12:08 431 WWUS46 KSEW 220611 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1011 PM PST Sat Feb 21 2026 WAZ301-302-221415- /O.CON.KSEW.WW.Y.0004.260223T0600Z-260223T1800Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 1011 PM PST Sat Feb 21 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM SUNDAY TO 10 AM PST MONDAY... * WHAT...Snow expected. Total snow accumulations up to 5 to 10 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 10 PM Sunday to 10 AM PST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 28 Action: Continued Issued At: 2026-02-22 07:54:13 892 WWUS46 KSEW 221354 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 554 AM PST Sun Feb 22 2026 WAZ301-302-222300- /O.CON.KSEW.WW.Y.0004.260223T0600Z-260223T1800Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 554 AM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST MONDAY... * WHAT...Snow expected. Total snow accumulations up to 5 to 10 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 10 PM this evening to 10 AM PST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 28 Action: Time Extended Issued At: 2026-02-22 11:58:21 939 WWUS46 KSEW 221757 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 957 AM PST Sun Feb 22 2026 WAZ301-302-230200- /O.EXT.KSEW.WW.Y.0004.260223T0600Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 957 AM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations up to 5 to 10 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 10 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 41 Action: Time and Area Extended Issued At: 2026-02-22 12:39:22 264 WWUS46 KSEW 221838 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1038 AM PST Sun Feb 22 2026 WAZ303-304-230245- /O.EXB.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Longmire, Crystal Mountain, Greenwater, Paradise, White Pass, Ashford, Mount Rainier, Snoqualmie Pass, and SR18 at Tiger Mountain Summit 1038 AM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ301-302-230245- /O.EXT.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 1038 AM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 5 to 10 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 41 Action: Time Extended Issued At: 2026-02-22 12:39:22 264 WWUS46 KSEW 221838 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1038 AM PST Sun Feb 22 2026 WAZ303-304-230245- /O.EXB.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Longmire, Crystal Mountain, Greenwater, Paradise, White Pass, Ashford, Mount Rainier, Snoqualmie Pass, and SR18 at Tiger Mountain Summit 1038 AM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ301-302-230245- /O.EXT.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 1038 AM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 5 to 10 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 41 Action: Continued Issued At: 2026-02-22 17:15:59 474 WWUS46 KSEW 222315 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 315 PM PST Sun Feb 22 2026 .Snow levels will range between 3,000 to 4,000 ft. WAZ301-302-230800- /O.CON.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 315 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-230800- /O.CON.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Longmire, Crystal Mountain, Greenwater, Paradise, White Pass, Ashford, Mount Rainier, Snoqualmie Pass, and SR18 at Tiger Mountain Summit 315 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 41 Action: Continued Issued At: 2026-02-22 17:15:59 474 WWUS46 KSEW 222315 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 315 PM PST Sun Feb 22 2026 .Snow levels will range between 3,000 to 4,000 ft. WAZ301-302-230800- /O.CON.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Mount Baker and Stevens Pass 315 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-230800- /O.CON.KSEW.WW.Y.0004.260223T0400Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Longmire, Crystal Mountain, Greenwater, Paradise, White Pass, Ashford, Mount Rainier, Snoqualmie Pass, and SR18 at Tiger Mountain Summit 315 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...From 8 PM this evening to 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 41 Action: Continued Issued At: 2026-02-23 01:21:13 243 WWUS46 KSEW 230720 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1120 PM PST Sun Feb 22 2026 WAZ301-302-231530- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass and Mount Baker 1120 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...Until 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snow levels will range between 3000 to 4000 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-231530- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Snoqualmie Pass, White Pass, Longmire, Mount Rainier, Ashford, Paradise, Crystal Mountain, Greenwater, and SR18 at Tiger Mountain Summit 1120 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...Until 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snow levels will range between 3000 to 4000 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 28 Action: Continued Issued At: 2026-02-23 01:21:13 243 WWUS46 KSEW 230720 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1120 PM PST Sun Feb 22 2026 WAZ301-302-231530- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass and Mount Baker 1120 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...Until 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snow levels will range between 3000 to 4000 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-231530- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Snoqualmie Pass, White Pass, Longmire, Mount Rainier, Ashford, Paradise, Crystal Mountain, Greenwater, and SR18 at Tiger Mountain Summit 1120 PM PST Sun Feb 22 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY... * WHAT...Snow expected. Total snow accumulations 8 to 12 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...Until 1 PM PST Monday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the Monday morning commute. * ADDITIONAL DETAILS...Snow levels will range between 3000 to 4000 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 28 Action: Continued Issued At: 2026-02-23 08:16:13 217 WWUS46 KSEW 231415 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 615 AM PST Mon Feb 23 2026 WAZ301-302-232100- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass and Mount Baker 615 AM PST Mon Feb 23 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations up to 2 to 4 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-232100- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Snoqualmie Pass, White Pass, Longmire, Mount Rainier, Ashford, Paradise, Crystal Mountain, Greenwater, and SR18 at Tiger Mountain Summit 615 AM PST Mon Feb 23 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations up to 6 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 28 Action: Continued Issued At: 2026-02-23 08:16:13 217 WWUS46 KSEW 231415 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 615 AM PST Mon Feb 23 2026 WAZ301-302-232100- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass and Mount Baker 615 AM PST Mon Feb 23 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations up to 2 to 4 inches. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-232100- /O.CON.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Snoqualmie Pass, White Pass, Longmire, Mount Rainier, Ashford, Paradise, Crystal Mountain, Greenwater, and SR18 at Tiger Mountain Summit 615 AM PST Mon Feb 23 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS AFTERNOON... * WHAT...Snow. Additional snow accumulations up to 6 inches. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Monday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 28 Action: Expired Issued At: 2026-02-23 14:56:54 697 WWUS46 KSEW 232056 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1256 PM PST Mon Feb 23 2026 WAZ301>304-232200- /O.EXP.KSEW.WW.Y.0004.000000T0000Z-260223T2100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties-Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Longmire, Stevens Pass, Ashford, Greenwater, Crystal Mountain, Snoqualmie Pass, SR18 at Tiger Mountain Summit, Paradise, Mount Rainier, White Pass, and Mount Baker 1256 PM PST Mon Feb 23 2026 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 1 PM PST THIS AFTERNOON... Significant snowfall has ended, especially at the the elevations of the Cascade passes. Additional snow showers will continue this afternoon, but roadway accumulations will be very limited. $$ 12 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||