Alert archive / Washington / Winter Storm Warnings in 2021
Winter Storm Warning 16, NWS Seattle, WA
NWS Seattle, WA issued this winter storm warning at Dec 17, 2021, 2:16 PM PST. It took effect at Dec 17, 2021, 10:00 PM PST. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 17, 2021, 2:16 PM PST (22:16 UTC)
- In effect from
- Dec 17, 2021, 10:00 PM PST
- Expired
- Dec 18, 2021, 10:00 PM PST
- In force
- 24 hr
- Issued by
- NWS Seattle, WA
The text
As transmitted.
374 WWUS46 KSEW 172216 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 216 PM PST Fri Dec 17 2021 WAZ567>569-181045- /O.UPG.KSEW.WS.A.0009.211218T0600Z-211219T1800Z/ /O.NEW.KSEW.WS.W.0016.211218T0600Z-211219T1200Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Stevens Pass, Snoqualmie Pass, and Paradise 216 PM PST Fri Dec 17 2021 ...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 4 AM PST SUNDAY ABOVE 3000 FEET... * WHAT...Heavy snow expected above 3000 feet. Total snow accumulations of 10 to 28 inches. Winds gusting as high as 40 mph. * WHERE...Cascade mountains of Whatcom and Skagit Counties, including the Mount Baker Ski Area, Cascade mountains of Snohomish and King Counties, including Stevens Pass and Snoqualmie Pass and Cascade mountains of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier. * WHEN...From 10 PM this evening to 4 AM PST Sunday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Frezing rain will be possible at Snoqualmie Pass Saturday 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. && $$ WAZ513-181045- /O.UPG.KSEW.WS.A.0009.211218T0600Z-211219T1800Z/ /O.NEW.KSEW.WW.Y.0036.211218T0300Z-211219T0000Z/ Olympics- 216 PM PST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 4 PM PST SATURDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 4 to 20 inches. Winds gusting as high as 55 mph. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...From 7 PM this evening to 4 PM PST Saturday. * IMPACTS...Plan on difficult travel conditions. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
5 follow-up statements
547 WWUS46 KSEW 172224 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 224 PM PST Fri Dec 17 2021 WAZ567>569-180630- /O.CON.KSEW.WS.W.0016.211218T0600Z-211219T1200Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Stevens Pass, Snoqualmie Pass, and Paradise 224 PM PST Fri Dec 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 4 AM PST SUNDAY ABOVE 3000 FEET... * WHAT...Heavy snow expected above 3000 feet. Total snow accumulations of 10 to 28 inches. Winds gusting as high as 40 mph. * WHERE...Cascade mountains of Whatcom and Skagit Counties, including the Mount Baker Ski Area, Cascade mountains of Snohomish and King Counties, including Stevens Pass and Snoqualmie Pass and Cascade mountains of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier. * WHEN...From 10 PM this evening to 4 AM PST Sunday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Freezing rain will be possible at Snoqualmie Pass Saturday 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. && $$ WAZ513-180630- /O.CON.KSEW.WW.Y.0036.211218T0300Z-211219T0000Z/ Olympics- 224 PM PST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 PM PST SATURDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 4 to 20 inches. Winds gusting as high as 55 mph. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...From 7 PM this evening to 4 PM PST Saturday. * IMPACTS...Plan on difficult travel conditions. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
706 WWUS46 KSEW 180350 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 750 PM PST Fri Dec 17 2021 WAZ567>569-181800- /O.CON.KSEW.WS.W.0016.211218T0600Z-211219T1200Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Stevens Pass, Snoqualmie Pass, and Paradise 750 PM PST Fri Dec 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY ABOVE 3000 FEET... * WHAT...Heavy snow expected above 3000 feet. Total snow accumulations of 14 to 28 inches. Winds gusting as high as 40 mph. * WHERE...Cascade mountains of Whatcom and Skagit Counties, including the Mount Baker Ski Area, Cascade mountains of Snohomish and King Counties, including Stevens Pass and Snoqualmie Pass and Cascade mountains of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier. * WHEN...From 10 PM this evening to 4 AM PST Sunday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Freezing rain will be possible at Snoqualmie Pass Saturday 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. && $$ WAZ513-181800- /O.CON.KSEW.WW.Y.0036.000000T0000Z-211219T0000Z/ Olympics- 750 PM PST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SATURDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 10 to 20 inches. Winds gusting as high as 55 mph. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...From 7 PM this evening to 4 PM PST Saturday. * IMPACTS...Plan on difficult travel conditions. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
386 WWUS46 KSEW 180448 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 848 PM PST Fri Dec 17 2021 WAZ567>569-181800- /O.CON.KSEW.WS.W.0016.211218T0600Z-211219T1200Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Stevens Pass, Snoqualmie Pass, and Paradise 848 PM PST Fri Dec 17 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY ABOVE 3000 FEET... * WHAT...Heavy snow expected above 3000 feet. Total snow accumulations of 14 to 28 inches. Winds gusting as high as 40 mph. * WHERE...Cascade mountains of Whatcom and Skagit Counties, including the Mount Baker Ski Area, Cascade mountains of Snohomish and King Counties, including Stevens Pass and Snoqualmie Pass and Cascade mountains of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier. * WHEN...From 10 PM this evening to 4 AM PST Sunday. * IMPACTS...Travel could be very difficult. 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. && $$ WAZ503-181500- /O.EXB.KSEW.WW.Y.0036.000000T0000Z-211218T1500Z/ Western Whatcom County- including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 848 PM PST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 7 AM PST SATURDAY... * WHAT...Snow accumulations of up to 1 to 2 inches. Winds gusting as high as 40 mph. * WHERE...Lowlands of western Whatcom County, including Point Roberts, Lummi Island, Bellingham, Lynden and Sumas. * WHEN...Until 7 AM PST Saturday. * IMPACTS...Plan on winter travel conditions, especially on less traveled roadways. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ WAZ513-181800- /O.CON.KSEW.WW.Y.0036.000000T0000Z-211219T0000Z/ Olympics- 848 PM PST Fri Dec 17 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SATURDAY ABOVE 4000 FEET... * WHAT...Snow expected above 4000 feet. Total snow accumulations of 10 to 20 inches. Winds gusting as high as 55 mph. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...From 7 PM this evening to 4 PM PST Saturday. * IMPACTS...Plan on difficult travel conditions. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
196 WWUS46 KSEW 181454 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 654 AM PST Sat Dec 18 2021 WAZ503-181600- /O.EXP.KSEW.WW.Y.0036.000000T0000Z-211218T1500Z/ Western Whatcom County- including Bellingham, Blaine, Point Roberts, Ferndale, Lynden, Sumas, and Sudden Valley 654 AM PST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 7 AM PST THIS MORNING... Precipitation will continue across the region today, however, given warming temperatures across the area, expect little to no additional snow accumulations. $$ WAZ567>569-190000- /O.CON.KSEW.WS.W.0016.000000T0000Z-211219T1200Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Stevens Pass, Snoqualmie Pass, and Paradise 654 AM PST Sat Dec 18 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST SUNDAY ABOVE 3000 FEET... * WHAT...Heavy snow continues above 3000 feet. Additional snow accumulations of 12 to 22 inches. Winds gusting as high as 45 mph. * WHERE...Cascade mountains of Whatcom and Skagit Counties, including the Mount Baker Ski Area, Cascade mountains of Snohomish and King Counties, including Stevens Pass and Snoqualmie Pass and Cascade mountains of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier. * WHEN...Until 4 AM PST Sunday. * IMPACTS...Plan on difficult travel conditions. 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. && $$ WAZ513-190000- /O.CON.KSEW.WW.Y.0036.000000T0000Z-211219T0000Z/ Olympics- 654 AM PST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON ABOVE 4000 FEET... * WHAT...Snow continues above 4000 feet. Additional snow accumulations of 6 to 9 inches. Winds gusting as high as 50 mph. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
423 WWUS46 KSEW 182229 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 229 PM PST Sat Dec 18 2021 WAZ567>569-190600- /O.EXT.KSEW.WS.W.0016.000000T0000Z-211219T0600Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Stevens Pass, Snoqualmie Pass, and Paradise 229 PM PST Sat Dec 18 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 3000 FEET... * WHAT...Heavy snow continued above 3000 feet. Additional snow accumulations of up to 7 inches. Winds gusting as high as 40 mph. * WHERE...Cascade mountains of Whatcom and Skagit Counties, including the Mount Baker Ski Area, Cascade mountains of Pierce and Lewis Counties, including the Crystal Mountain Ski Area, Paradise on Mount Rainier, and Cascade mountains of Snohomish and King Counties, including Stevens Pass, and Snoqualmie Pass. * WHEN...Until 10 PM PST this evening. * IMPACTS...Plan on slippery road conditions. 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. && $$ WAZ513-190000- /O.CON.KSEW.WW.Y.0036.000000T0000Z-211219T0000Z/ Olympics- 229 PM PST Sat Dec 18 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON ABOVE 4000 FEET... * WHAT...Snow continued above 4000 feet. Additional snow accumulations of up to two inches. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 2:51 AM PST | Gale Warning | SEW | 38 hr | |
| Dec 17, 3:22 AM PST | Winter Storm Watch | SEW | 11 hr | |
| Dec 17, 3:27 AM PST | High Wind Warning | SEW | San Juan | 33 hr |
| Dec 17, 3:27 AM PST | Wind Advisory | SEW | 33 hr | |
| Dec 17, 2:16 PM PST | Winter Weather Advisory | SEW | 26 hr | |
| Dec 17, 2:41 PM PST | Small Craft Advisory | SEW | 4 hr |
Nearby
Winter Storm Warnings in Washington, 2021Every winter storm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.