Alert archive / Washington / Blizzard Warnings in 2026
Blizzard Warning 1, NWS Seattle, WA
NWS Seattle, WA issued this blizzard warning at Mar 9, 2026, 1:42 PM PDT for 10 counties in Washington. It took effect at Mar 11, 2026, 6:00 PM PDT. It was in force for 9 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
- Mar 9, 2026, 1:42 PM PDT (20:42 UTC)
- In effect from
- Mar 11, 2026, 6:00 PM PDT
- Expired
- Mar 12, 2026, 3:00 AM PDT
- In force
- 9 hr
- Issued by
- NWS Seattle, WA
Counties Clallam County, WA, Grays Harbor County, WA, Jefferson County, WA, King County, WA, Lewis County, WA, Mason County, WA, Pierce County, WA, Skagit County, WA, Snohomish County, WA, Whatcom County, WA
The radar
The Seattle radar (KATX), 58 km from the middle of the area, began a volume at 20:41 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, 8.7 hours before the alert went out and 143 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
- 8 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
370 WWUS46 KSEW 092042 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 142 PM PDT Mon Mar 9 2026 WAZ301-302-100445- /O.NEW.KSEW.BZ.W.0001.260311T0000Z-260312T0600Z/ /O.EXB.KSEW.WW.Y.0008.260310T1200Z-260311T0000Z/ /O.EXT.KSEW.WS.A.0003.260312T0600Z-260313T1800Z/ /O.CON.KSEW.WS.W.0002.000000T0000Z-260310T1200Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass, Mount Baker, and Silverton 142 PM PDT Mon Mar 9 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 5 PM PDT TUESDAY... ...BLIZZARD WARNING IN EFFECT FROM 5 PM TUESDAY TO 11 PM PDT WEDNESDAY... ...WINTER STORM WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations between 6 and 11 inches. For the Winter Weather Advisory, snow expected. Total snow accumulations between 2 and 4 inches. For the Blizzard Warning, blizzard conditions expected primarily Wednesday afternoon and evening. Winds gusting as high as 40 mph. Total snow accumulations between 2 and 4 feet possible. For the Winter Storm Watch, continued heavy snow is possible. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Storm Warning, until 5 AM PDT Tuesday. For the Winter Weather Advisory, from 5 AM to 5 PM PDT Tuesday. For the Blizzard Warning, from 5 PM Tuesday to 11 PM PDT Wednesday. The strongest winds will peak Wednesday evening into late Wednesday night. For the Winter Storm Watch, from Wednesday evening through Friday morning. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...The strongest winds will occur over the passes on Wednesday evening into late Wednesday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. && $$ WAZ303-304-100445- /O.NEW.KSEW.BZ.W.0001.260311T0000Z-260312T0600Z/ /O.EXT.KSEW.WS.A.0003.260312T0600Z-260313T1800Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260311T0000Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including White Pass, Greenwater, Mount Rainier, Snoqualmie Pass, Longmire, Crystal Mountain, SR18 at Tiger Mountain Summit, Paradise, and Ashford 142 PM PDT Mon Mar 9 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT TUESDAY... ...BLIZZARD WARNING IN EFFECT FROM 5 PM TUESDAY TO 11 PM PDT WEDNESDAY... ...WINTER STORM WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING... * WHAT...For the Winter Weather Advisory, continued snow. Additional snow accumulations between 6 and 10 inches. For the Blizzard Warning, blizzard conditions expected. Winds gusting as high as 40 mph Wednesday evening into late Wednesday night. Total snow accumulations up to 2 feet. For the Winter Storm Watch, continuing heavy snow possible. Total snow accumulations up to 4 feet possible. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...For the Winter Weather Advisory, until 5 PM PDT Tuesday. For the Blizzard Warning, from 5 PM Tuesday to 11 PM PDT Wednesday with the strongest winds peaking late Wednesday night. For the Winter Storm Watch, from Wednesday evening through Friday morning. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Lower elevations up to and including Snoqualmie Pass may transition over to rain late Wednesday as snow levels briefly rise before lowering again Thursday. The strongest winds will peak Wednesday evening into late Wednesday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ328-100445- /O.NEW.KSEW.BZ.W.0001.260311T0000Z-260312T0600Z/ /O.EXT.KSEW.WS.A.0003.260312T0600Z-260313T1800Z/ Olympics- Including Hurricane Ridge and Mount Olympus 142 PM PDT Mon Mar 9 2026 ...BLIZZARD WARNING IN EFFECT FROM 5 PM TUESDAY TO 11 PM PDT WEDNESDAY... ...WINTER STORM WATCH NOW IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 3 feet. Winds gusting as high as 45 mph. For the Winter Storm Watch, continued heavy snow possible. * WHERE...Olympics. * WHEN...For the Blizzard Warning, from 5 PM Tuesday to 11 PM PDT Wednesday with winds peaking Wednesday evening into late Wednesday night. For the Winter Storm Watch, from Wednesday evening through Friday morning. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Snow covered roads may make travel conditions difficult to impossible at times and cause delays. Temporary road closures possible. Gusty winds may limit visibility down to a quarter of a mile at times. && $$ WAZ306-100445- /O.CON.KSEW.WW.Y.0008.000000T0000Z-260310T1800Z/ Foothills and Valleys of Snohomish and Northern King Counties- Including Skykomish, Monroe, Duvall, and Lake Roesiger 142 PM PDT Mon Mar 9 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY... * WHAT...Snow. Additional snow accumulations up to 1 to 4 inches overnight into Tuesday morning. * WHERE...Foothills and Valleys of Snohomish and Northern King Counties. * WHEN...Until 11 AM PDT Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday evening and Tuesday morning commutes. * ADDITIONAL DETAILS...Highest amounts will be in the highest elevations closest to the mountains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ326-327-100445- /O.CON.KSEW.WW.Y.0008.000000T0000Z-260310T1800Z/ Western Strait of Juan de Fuca-Lake Crescent Area Including US 101- Including Joyce, Lake Crescent, Clallam Bay, and Sekiu 142 PM PDT Mon Mar 9 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY... * WHAT...Snow. Additional snow accumulations up to 1 to 4 inches overnight into Tuesday morning. * WHERE...Lake Crescent Area Including US 101 and Western Strait of Juan de Fuca. * WHEN...Until 11 AM PDT Tuesday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday evening and Tuesday morning commutes. * ADDITIONAL DETAILS...Daytime temperatures above freezing will help to limit snow accumulation during the day and melt any snow on the ground. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 21
8 follow-up statements
509 WWUS46 KSEW 100351 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 851 PM PDT Mon Mar 9 2026 WAZ301-302-101200- /O.CON.KSEW.WS.W.0002.000000T0000Z-260310T1200Z/ /O.CON.KSEW.BZ.W.0001.260311T0000Z-260312T0600Z/ /O.CON.KSEW.WW.Y.0008.260310T1200Z-260311T0000Z/ /O.CON.KSEW.WS.A.0003.260312T0600Z-260313T1800Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass, Mount Baker, and Silverton 851 PM PDT Mon Mar 9 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY... ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM PDT TUESDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 5 PM TUESDAY TO 11 PM PDT WEDNESDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING... * WHAT...For the Winter Storm Warning, heavy snow. Additional snow accumulations between 6 and 11 inches. For the Winter Weather Advisory, snow expected. Total snow accumulations between 2 and 4 inches. For the Blizzard Warning, blizzard conditions expected primarily Wednesday afternoon and evening. Winds gusting as high as 40 mph. Total snow accumulations between 2 and 4 feet possible. For the Winter Storm Watch, continued heavy snow is possible. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Storm Warning, until 5 AM PDT Tuesday. For the Winter Weather Advisory, from 5 AM to 5 PM PDT Tuesday. For the Blizzard Warning, from 5 PM Tuesday to 11 PM PDT Wednesday. For the Winter Storm Watch, from Wednesday evening through Friday morning. * IMPACTS...Snow-covered roads may make travel conditions difficult to impossible at times through the mountains and cause delays. Temporary road closures possible. Gusty winds may limit visibility at times and down tree branches. * ADDITIONAL DETAILS...The strongest winds will occur over the passes on Wednesday evening into late Wednesday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ303-304-101200- /O.CON.KSEW.BZ.W.0001.260311T0000Z-260312T0600Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260311T0000Z/ /O.CON.KSEW.WS.A.0003.260312T0600Z-260313T1800Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Crystal Mountain, White Pass, SR18 at Tiger Mountain Summit, Snoqualmie Pass, Paradise, Greenwater, Longmire, Mount Rainier, and Ashford 851 PM PDT Mon Mar 9 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT TUESDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 5 PM TUESDAY TO 11 PM PDT WEDNESDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING... * WHAT...For the Winter Weather Advisory, continued snow. Additional snow accumulations between 6 and 10 inches. For the Blizzard Warning, blizzard conditions expected. Winds gusting as high as 40 mph Wednesday evening into late Wednesday night. Total snow accumulations up to 2 feet. For the Winter Storm Watch, continuing heavy snow possible. Total snow accumulations up to 4 feet possible. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...For the Winter Weather Advisory, until 5 PM PDT Tuesday. For the Blizzard Warning, from 5 PM Tuesday to 11 PM PDT Wednesday. For the Winter Storm Watch, from Wednesday evening through Friday morning. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and greatly reduce visibilities. * ADDITIONAL DETAILS...Lower elevations up to and including Snoqualmie Pass may transition over to rain late Wednesday as snow levels briefly rise before lowering again Thursday. The strongest winds will peak Wednesday evening into late Wednesday night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ328-101200- /O.CON.KSEW.BZ.W.0001.260311T0000Z-260312T0600Z/ /O.CON.KSEW.WS.A.0003.260312T0600Z-260313T1800Z/ Olympics- Including Mount Olympus and Hurricane Ridge 851 PM PDT Mon Mar 9 2026 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 5 PM TUESDAY TO 11 PM PDT WEDNESDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH FRIDAY MORNING... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 3 feet. Winds gusting as high as 45 mph. For the Winter Storm Watch, continued heavy snow possible. * WHERE...Olympics. * WHEN...For the Blizzard Warning, from 5 PM Tuesday to 11 PM PDT Wednesday. For the Winter Storm Watch, from Wednesday evening through Friday morning. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and reduce visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Snow covered roads may make travel conditions difficult to impossible at times and cause delays. Temporary road closures possible. Gusty winds may limit visibility down to a quarter of a mile at times. && $$ WAZ306-101200- /O.CON.KSEW.WW.Y.0008.000000T0000Z-260310T1800Z/ Foothills and Valleys of Snohomish and Northern King Counties- Including Monroe, Skykomish, Duvall, and Lake Roesiger 851 PM PDT Mon Mar 9 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY... * WHAT...Snow. Additional snow accumulations up to 1 to 4 inches overnight into Tuesday morning. * WHERE...Foothills and Valleys of Snohomish and Northern King Counties. * WHEN...Until 11 AM PDT Tuesday. * IMPACTS...Snow-covered roads may make travel conditions difficult at times and cause delays. Temporary road closures possible. * ADDITIONAL DETAILS...Highest amounts will be in the highest elevations closest to the mountains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ326-327-101200- /O.CON.KSEW.WW.Y.0008.000000T0000Z-260310T1800Z/ Western Strait of Juan de Fuca-Lake Crescent Area Including US 101- Including Clallam Bay, Joyce, Sekiu, and Lake Crescent 851 PM PDT Mon Mar 9 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT TUESDAY... * WHAT...Snow. Additional snow accumulations up to 1 to 4 inches overnight into Tuesday morning. * WHERE...Lake Crescent Area Including US 101 and Western Strait of Juan de Fuca. * WHEN...Until 11 AM PDT Tuesday. * IMPACTS...Snow-covered roads may make travel conditions difficult at times and cause delays. Temporary road closures possible. * ADDITIONAL DETAILS...Daytime temperatures above freezing will help to limit snow accumulation during the day and melt any snow on the ground. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 18
940 WWUS46 KSEW 100937 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 237 AM PDT Tue Mar 10 2026 WAZ301-302-102200- /O.CAN.KSEW.WS.W.0002.000000T0000Z-260310T1200Z/ /O.EXT.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.EXT.KSEW.WW.Y.0008.260310T1200Z-260312T0100Z/ /O.EXT.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass, Silverton, and Mount Baker 237 AM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM PDT WEDNESDAY... ...BLIZZARD WARNING NOW IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH NOW IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... ...WINTER STORM WARNING IS CANCELLED... * WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations between 10 and 20 inches. For the Blizzard Warning, blizzard conditions expected primarily Wednesday evening. Winds gusting as high as 45 mph with additional snow accumulations of 8 to 12 inches. Total snow accumulations between 1 and 3 feet possible. For the Winter Storm Watch, continued heavy snow is possible late Wednesday night through late Friday night. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Weather Advisory, until 6 PM PDT Wednesday. For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Snow-covered roads may make travel conditions difficult to impossible at times through the mountains and cause delays. Temporary road closures possible. Gusty winds may limit visibility at times and down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ303-304-102200- /O.EXT.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.EXT.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ /O.EXT.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Greenwater, Crystal Mountain, White Pass, Ashford, Mount Rainier, Snoqualmie Pass, Paradise, SR18 at Tiger Mountain Summit, and Longmire 237 AM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 PM PDT WEDNESDAY... ...BLIZZARD WARNING NOW IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH NOW IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations between 12 and 22 inches. For the Blizzard Warning, blizzard conditions expected. Winds gusting as high as 40 mph with an additional 10 to 15 inches of snow. For the Winter Storm Watch, heavy snow possible late Wednesday night through late Friday night. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...For the Winter Weather Advisory, until 6 PM PDT Wednesday. For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ328-102200- /O.EXT.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.EXT.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Olympics- Including Mount Olympus and Hurricane Ridge 237 AM PDT Tue Mar 10 2026 ...BLIZZARD WARNING NOW IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH NOW IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 6 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy snow possible late Wednesday night through late Friday night. * WHERE...Olympics. * WHEN...For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ306-101800- /O.CON.KSEW.WW.Y.0008.000000T0000Z-260310T1800Z/ Foothills and Valleys of Snohomish and Northern King Counties- Including Lake Roesiger, Duvall, Skykomish, and Monroe 237 AM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...Snow. Additional snow accumulations up to two inches. * WHERE...Foothills and Valleys of Snohomish and Northern King Counties. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute. * ADDITIONAL DETAILS...Highest amounts will be in the highest elevations closest to the mountains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ326-327-101800- /O.CON.KSEW.WW.Y.0008.000000T0000Z-260310T1800Z/ Western Strait of Juan de Fuca-Lake Crescent Area Including US 101- Including Lake Crescent, Sekiu, Joyce, and Clallam Bay 237 AM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...Snow. Additional snow accumulations up to 2 inches. * WHERE...Lake Crescent Area Including US 101 and Western Strait of Juan de Fuca. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Prepare for possible power outages. && $$ 44
807 WWUS46 KSEW 101754 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1054 AM PDT Tue Mar 10 2026 WAZ306-326-327-101900- /O.EXP.KSEW.WW.Y.0008.000000T0000Z-260310T1800Z/ Foothills and Valleys of Snohomish and Northern King Counties- Western Strait of Juan de Fuca-Lake Crescent Area Including US 101- Including Skykomish, Joyce, Clallam Bay, Monroe, Lake Roesiger, Sekiu, Lake Crescent, and Duvall 1054 AM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 11 AM PDT THIS MORNING... $$ WAZ301-302-110200- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ /O.CON.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass, Silverton, and Mount Baker 1054 AM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT WEDNESDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations between 10 and 15 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 13 inches. Winds gusting as high as 55 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 1 to 4 feet possible. Winds could gust as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Weather Advisory, until 6 PM PDT Wednesday. For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ303-304-110200- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ /O.CON.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Crystal Mountain, Paradise, Longmire, Ashford, Mount Rainier, Greenwater, SR18 at Tiger Mountain Summit, Snoqualmie Pass, and White Pass 1054 AM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT WEDNESDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations between 12 and 24 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 15 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations up to 47 inches possible. Winds could gust as high as 40 mph. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...For the Winter Weather Advisory, until 6 PM PDT Wednesday. For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ328-110200- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Olympics- Including Mount Olympus and Hurricane Ridge 1054 AM PDT Tue Mar 10 2026 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 6 inches. Winds gusting as high as 40 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations up to 23 inches possible. * WHERE...Olympics. * WHEN...For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ 21
773 WWUS46 KSEW 110120 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 620 PM PDT Tue Mar 10 2026 WAZ301-302-111215- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ /O.CON.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Stevens Pass, Silverton, and Mount Baker 620 PM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT WEDNESDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations between 4 and 12 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 1 foot. Winds gusting as high as 55 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 1 and 4 feet possible. Winds could gust as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Weather Advisory, until 6 PM PDT Wednesday. For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ303-304-111215- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ /O.CON.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Ashford, Mount Rainier, White Pass, Snoqualmie Pass, Paradise, Longmire, Greenwater, SR18 at Tiger Mountain Summit, and Crystal Mountain 620 PM PDT Tue Mar 10 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT WEDNESDAY... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations up to 12 to 24 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 12 to 18 inches. Winds gusting as high as 55 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations up to 2 to 4 feet possible. Winds could gust as high as 40 mph. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...For the Winter Weather Advisory, until 6 PM PDT Wednesday. For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ WAZ328-111215- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ Olympics- Including Mount Olympus and Hurricane Ridge 620 PM PDT Tue Mar 10 2026 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM WEDNESDAY TO 5 AM PDT THURSDAY... ...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE FRIDAY NIGHT... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 6 to 12 inches. Winds gusting as high as 55 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations up to 1 to 2 feet possible. Winds could gust as high as 40 mph. * WHERE...Olympics. * WHEN...For the Blizzard Warning, from 6 PM Wednesday to 5 AM PDT Thursday. For the Winter Storm Watch, from late Wednesday night through late Friday night. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Monitor the latest forecasts for updates on this situation. && $$ 33
842 WWUS46 KSEW 110923 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 223 AM PDT Wed Mar 11 2026 WAZ301-302-112200- /O.UPG.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ /O.NEW.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Silverton, Mount Baker, and Stevens Pass 223 AM PDT Wed Mar 11 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM PDT THURSDAY... ...WINTER STORM WARNING IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations between 6 and 12 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations 5 to 10 inches. Winds gusting as high as 55 mph. For the Winter Storm Warning, heavy snow. Total snow accumulations between 1 and 3 feet possible. Winds could gust as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Weather Advisory, until 6 PM PDT this evening. For the Blizzard Warning, from 6 PM this evening to 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-112200- /O.UPG.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ /O.NEW.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Ashford, SR18 at Tiger Mountain Summit, Snoqualmie Pass, Mount Rainier, Crystal Mountain, Greenwater, White Pass, Longmire, and Paradise 223 AM PDT Wed Mar 11 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM PDT THURSDAY... ...WINTER STORM WARNING IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of 8 to 12 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 8 inches. Winds gusting as high as 55 mph. For the Winter Storm Warning, heavy snow. Total snow accumulations between 1 and 3 feet. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...For the Winter Weather Advisory, until 6 PM PDT this evening. For the Blizzard Warning, from 6 PM this evening to 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. Very strong winds could cause extensive tree damage. Visibilities may drop below 1/4 mile due to falling and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ328-112200- /O.UPG.KSEW.WS.A.0003.260312T1200Z-260314T1200Z/ /O.NEW.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ Olympics- Including Hurricane Ridge and Mount Olympus 223 AM PDT Wed Mar 11 2026 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM PDT THURSDAY... ...WINTER STORM WARNING IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 4 inches. Winds gusting as high as 60 mph. For the Winter Storm Warning, heavy snow expected. Total snow accumulations between 1 and 3 feet. Winds gusting as high as 40 mph. * WHERE...Olympics. * WHEN...For the Blizzard Warning, from 6 PM this evening to 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. Very strong winds could cause extensive tree damage. Visibilities may drop below 1/4 mile due to falling and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. && $$ 44
313 WWUS46 KSEW 112118 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 218 PM PDT Wed Mar 11 2026 WAZ301-302-120700- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ Cascades of Whatcom and Skagit Counties-Cascades of Snohomish and Northern King Counties- Including Silverton, Mount Baker, and Stevens Pass 218 PM PDT Wed Mar 11 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM PDT THURSDAY... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations up of 4 to 6 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations 5 to 10 inches. Winds gusting as high as 55 mph. For the Winter Storm Warning, heavy snow. Total snow accumulations between 1 and 3 feet possible. Winds could gust as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties and Cascades of Whatcom and Skagit Counties. * WHEN...For the Winter Weather Advisory, until 6 PM PDT this evening. For the Blizzard Warning, from 6 PM this evening to 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. Travel could be very difficult to impossible. Strong winds could cause tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ303-304-120700- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ /O.CON.KSEW.WW.Y.0008.000000T0000Z-260312T0100Z/ Cascades of Southern King County-Cascades of Pierce and Lewis Counties- Including Ashford, Longmire, Mount Rainier, Paradise, SR18 at Tiger Mountain Summit, Greenwater, Snoqualmie Pass, White Pass, and Crystal Mountain 218 PM PDT Wed Mar 11 2026 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING... ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM PDT THURSDAY... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Winter Weather Advisory, snow. Additional snow accumulations of 8 to 12 inches. For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 8 inches. Winds gusting as high as 55 mph. For the Winter Storm Warning, heavy snow. Total snow accumulations between 1 and 3 feet. * WHERE...Cascades of Pierce and Lewis Counties and Cascades of Southern King County. * WHEN...For the Winter Weather Advisory, until 6 PM PDT this evening. For the Blizzard Warning, from 6 PM this evening to 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and greatly reduce visibilities. * ADDITIONAL DETAILS...Lower elevations up to and including Snoqualmie Pass may transition over to rain late this evening as snow levels briefly rise before lowering again Thursday. The strongest winds will peak this evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. Slow down and use caution while traveling. Prepare for possible power outages. && $$ WAZ328-120700- /O.CON.KSEW.BZ.W.0001.260312T0100Z-260312T1200Z/ /O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ Olympics- Including Hurricane Ridge and Mount Olympus 218 PM PDT Wed Mar 11 2026 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 5 AM PDT THURSDAY... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 4 inches. Winds gusting as high as 60 mph. For the Winter Storm Warning, heavy snow expected. Total snow accumulations between 1 and 3 feet. Winds gusting as high as 40 mph. * WHERE...Olympics. * WHEN...For the Blizzard Warning, from 6 PM this evening to 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and reduce visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Snow covered roads may make travel conditions difficult to impossible at times and cause delays. Temporary road closures possible. Gusty winds may limit visibility down to a quarter of a mile at times. && $$ 28
479 WWUS46 KSEW 120653 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1153 PM PDT Wed Mar 11 2026 WAZ301>304-121500- /O.CON.KSEW.BZ.W.0001.000000T0000Z-260312T1200Z/ /O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ 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 Silverton, Ashford, Crystal Mountain, Snoqualmie Pass, Mount Baker, Paradise, Mount Rainier, Greenwater, Stevens Pass, SR18 at Tiger Mountain Summit, White Pass, and Longmire 1153 PM PDT Wed Mar 11 2026 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Blizzard Warning, blizzard conditions. Additional snow accumulations up to 5 inches. Winds gusting as high as 65 mph. For the Winter Storm Warning, heavy snow expected. Total snow accumulations between 1 and 3 feet. Winds gusting as high as 40 mph. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...For the Blizzard Warning, until 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. Prepare for possible power outages. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. && $$ WAZ328-121500- /O.CON.KSEW.BZ.W.0001.000000T0000Z-260312T1200Z/ /O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ Olympics- Including Mount Olympus and Hurricane Ridge 1153 PM PDT Wed Mar 11 2026 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY... ...WINTER STORM WARNING REMAINS IN EFFECT FROM 5 AM THURSDAY TO 5 AM PDT SATURDAY... * WHAT...For the Blizzard Warning, blizzard conditions expected. Total snow accumulations up to 4 inches. Winds gusting as high as 60 mph. For the Winter Storm Warning, heavy snow expected. Total snow accumulations between 1 and 3 feet. Winds gusting as high as 40 mph. * WHERE...Olympics. * WHEN...For the Blizzard Warning, until 5 AM PDT Thursday. For the Winter Storm Warning, from 5 AM Thursday to 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. Gusty winds could bring down tree branches and reduce visibilities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Snow covered roads may make travel conditions difficult to impossible at times and cause delays. Temporary road closures possible. Gusty winds may limit visibility down to a quarter of a mile at times. && $$ 44
709 WWUS46 KSEW 121000 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 300 AM PDT Thu Mar 12 2026 WAZ301>304-122200- /O.CAN.KSEW.BZ.W.0001.000000T0000Z-260312T1200Z/ /O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ 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 SR18 at Tiger Mountain Summit, Ashford, Stevens Pass, Silverton, White Pass, Mount Baker, Snoqualmie Pass, Paradise, Crystal Mountain, Mount Rainier, Greenwater, and Longmire 300 AM PDT Thu Mar 12 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY... ...BLIZZARD WARNING IS CANCELLED... * WHAT...Heavy snow expected beginning later today continuing through Friday. Total snow accumulations between 1.5 and 3 feet with up to 4 feet possible on Mount Rainier. Winds gusting as high as 50 mph this morning. * WHERE...Cascades of Snohomish and Northern King Counties, Cascades of Whatcom and Skagit Counties, Cascades of Pierce and Lewis Counties, and Cascades of Southern King County. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible especially Thursday afternoon through Friday evening. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. && $$ WAZ328-122200- /O.CAN.KSEW.BZ.W.0001.000000T0000Z-260312T1200Z/ /O.CON.KSEW.WS.W.0003.260312T1200Z-260314T1200Z/ Olympics- Including Mount Olympus and Hurricane Ridge 300 AM PDT Thu Mar 12 2026 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT SATURDAY... ...BLIZZARD WARNING IS CANCELLED... * WHAT...Heavy snow expected. Total snow accumulations between 12 and 20 inches. Winds gusting as high as 50 mph this morning. * WHERE...Olympics. * WHEN...Until 5 AM PDT Saturday. * IMPACTS...Travel could be very difficult to impossible. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages. && $$ 44
What forecasters said that day
The local office's own words before this blizzard warning 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 blizzard warning went out at Mar 9, 9:25 AM PDT, 4 hours 17 minutes earlier.
Area forecast discussion, Mar 9, 9:25 AM PDT, 4 hours 17 minutes before
Area Forecast Discussion
National Weather Service Seattle WA
925 AM PDT Mon Mar 9 2026
.SYNOPSIS...
Upper level trough over Western Washington keeping cool
unsettled weather over the area through tonight. Next system
arriving Tuesday. A much stronger, atmospheric river based
system arrives Wednesday and Wednesday night bringing heavy snow
to the mountains and rain and locally windy conditions to the
lowlands. The wet weather pattern will remain intact into the
weekend.
&&
.SHORT TERM /TODAY THROUGH WEDNESDAY/...
Scattered showers persist this morning, with convergence
activity waning in NE King County. Some rain and snow mixed
showers could be possible through the morning, becoming more
rain based this afternoon. No other major forecast changes have
been made this morning, and the rest of the previous discussion
can be found below. An update to the aviation sections has also
been provided.
Scattered showers continuing this evening. Shower activity
decreasing overnight as a weak upper level ridge moves in ahead
of the next frontal system. Another convergence zone possible
over Skagit or Snohomish county moving into the Cascades
overnight. Heaviest snowfall in the mountains with the
convergence. Another 7 to 9 inches possible. Outside of the
convergence new snow amounts mostly in the two to five inch
range. Lows Tuesday morning in the upper 20s to mid 30s.
Snow levels will be near the surface Tuesday morning but shower
activity will be minimal. Rain out ahead of the next system
reaching the coast in the afternoon spreading inland late in the
day. Highs again in the mid 40s.
Rain over the entire area Tuesday night into Wednesday. Snow
heavy at times in the mountains. Snow levels between 1000 and
1500 feet Tuesday night rising to 2000 to 3500 feet Wednesday.
This will be the beginning of prolonged period of significant
snows in the mountains. Lows in the mid 30s to lower 40s. Highs
in the lower 50s.
Winter storm warning remaining in effect until 5 am Tuesday for
the Cascades from North King county northward. An additional 8
to 16 inches of new snow possible with the higher amounts near
Stevens Pass.
Winter weather advisory in effect for the remainder of the
Cascades through Tuesday afternoon for the possibility of 6 to
10 inches of new snow.
A winter weather advisory remains in effect for the Western
Strait of Juan de fuca for possible 1 to 4 inch snow
accumulations in the Lake Crescent area and along Highway 101
heading towards the north coast.
A winter weather advisory is also in effect for the foothills
and valleys of Snohomish and Northern King county with the
convergence zones producing up to six inches of new snow through
Tuesday morning.
A winter storm watch remains in effect for the Cascades and
Olympics from later Tuesday into Friday for another 2 to 4 feet
of new snow possible. Blizzard conditions are also possible
later Wednesday into Wednesday night. Felton
&&
.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
System moving through Wednesday night with a strong winds
possible along the coast and Strait of Juan de Fuca into Whidbey
Island. Windy conditions elsewhere. Its possible a blizzard
warning may be needed for the Cascades.
Potential atmospheric river arriving Thursday with the river
aimed at Western Washington at least through Friday. Snow levels
will rise but not too much, into the 3500-4500 foot range. New
snow totals will be measured in feet not inches.
Models in fairly good agreement that a weak upper level ridge
will build offshore cutting the atmospheric river off and
pushing the system south of the area Saturday. The break in the
precipitation will be short lived with another front approaching
Sunday.
Extended models beyond day 7 are in good agreement with another
atmospheric river reaching the west coast Monday into Tuesday.
Some solutions have this feature north of the area and some have
it right over Western Washington. Heavy snow in the mountains
and rain in the lowlands followed by a warm heavy rain is a
scenario where the rivers will need watching. Felton
&&
.AVIATION...
Zonal flow aloft through the TAF period. Post-
frontal onshore flow persists at the surface. VFR across most
terminals so far this morning. Puget Sound terminals (KBFI,
KPAE, KSEA) may continue to see instances of MVFR cigs due to
convergence zone activity meander across King/Snohomish counties
before petering out around 15-18z. Mostly VFR into the day on
Monday as well but can't rule out intermittent low cigs/vis from
passing showers. A convergence zones looks to redevelop again
between 22z Monday and 00z Tuesday, likely bringing MVFR cigs to
KPAE again. Breezy S/SW winds increasing during the afternoon
to 20-30 kt then decreasing after 00z.
KSEA...A mix of VFR/MVFR cigs due to a convergence zone until
15-18z. Afterwards, mainly VFR throughout the rest of the day
aside from brief low cigs/vis from passing showers. S/SW winds
this morning between 8-10 kt, increasing Monday afternoon with
gusts up to 25 to 30 kt possible. Gusts decrease around 00-02z
Tuesday. NBM shows 40- 50% chance of MVFR cigs redeveloping
after 00z Tuesday as due to convergence zone activity
reemerging. A mix of VFR/MVFR again into Tuesday morning.
33/McMillian
&&
.MARINE...
Mostly onshore flow through midweek and likely strong
at times. This has resulted in SCA being in effect through the
Strait of Juan de Fuca. West winds will also remain elevated for
the Coastal Waters before easing briefly by Monday night. A
stronger weather system will move across the waters Wednesday
into Thursday, resulting in additional headlines. Confidence is
increasing in gale force winds on Wednesday for the Coastal
Waters, with the probability of gales wind gusts ranging between
50 to 70% for the interior waters on Wednesday. Winds will
remain elevated, but slowly ease Thursday into late week.
Seas will range 9 to 12 feet through Tuesday. Seas will then build
Wednesday to 14 to 17 ft over the Coastal Waters before falling
between 10 ft by Thursday morning and remain that way through the
remainder of the week.
McMillian
&&
.HYDROLOGY...
Heavy precipitation, combined with rising snow levels,
will bring increased flows on the Skokomish River beginning
later Tuesday. It will be a tough call on the Skokomish River
with snow levels only rising to around 3500 feet. The current
river forecast has the Skokomish going over flood stage
Wednesday. Elsewhere, river levels will rise, however,
additional river flooding is not expected over the next seven
days. Felton
&&
.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Winter Storm Warning until 5 AM PDT Tuesday for Cascades of
Snohomish and Northern King Counties-Cascades of Whatcom
and Skagit Counties.
Winter Storm Watch from late Tuesday night through Friday
morning for Cascades of Pierce and Lewis Counties-
Cascades of Snohomish and Northern King Counties-Cascades
of Southern King County-Cascades of Whatcom and Skagit
Counties.
Winter Weather Advisory until 5 PM PDT Tuesday for Cascades of
Pierce and Lewis Counties-Cascades of Southern King
County.
Winter Weather Advisory until 11 AM PDT Tuesday for Foothills
and Valleys of Snohomish and Northern King Counties-Lake
Crescent Area Including US 101-Western Strait of Juan de
Fuca.
Winter Storm Watch from Tuesday afternoon through Friday
morning for Olympics.
PZ...Small Craft Advisory until 5 PM PDT this afternoon for Grays
Harbor Bar.
Small Craft Advisory until 11 PM PDT this evening for Central
U.S. Waters Strait Of Juan De Fuca-East Entrance U.S.
Waters Strait Of Juan De Fuca.
Small Craft Advisory until 5 PM PDT Tuesday 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.
&&The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 10:27 AM PDT | Flood Watch | SEW | Mason | 63 hr |
| Mar 9, 2:05 PM PDT | Gale Watch | SEW | 23 hr |
Nearby
Blizzard Warnings in Washington, 2026Every blizzard warning in 2026
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.