Alert archive / Washington / Winter Storm Warnings in 2021
Winter Storm Warning 14, NWS Seattle, WA
NWS Seattle, WA issued this winter storm warning at Dec 7, 2021, 3:04 PM PST. It took effect at Dec 8, 2021, 4:00 AM 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 7, 2021, 3:04 PM PST (23:04 UTC)
- In effect from
- Dec 8, 2021, 4:00 AM PST
- Expired
- Dec 9, 2021, 3:41 AM PST
- In force
- 24 hr
- Issued by
- NWS Seattle, WA
The text
As transmitted.
301 WWUS46 KSEW 072304 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 304 PM PST Tue Dec 7 2021 WAZ567>569-080715- /O.NEW.KSEW.WS.W.0014.211208T1200Z-211209T1800Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Newhalem, Stevens Pass, Snoqualmie Pass, Paradise, and Longmire 304 PM PST Tue Dec 7 2021 ...WINTER STORM WARNING IN EFFECT FROM 4 AM WEDNESDAY TO 10 AM PST THURSDAY ABOVE 2000 FEET... * WHAT...Heavy snow expected above 2000 feet. Total snow accumulations of 12 to 18 inches. * WHERE...Cascade mountains of Whatcom, Skagit Snohomish, King Pierce and Lewis Counties, including the Mount Baker Ski Area, Stevens Pass, Snoqualmie Pass, the Crystal Mountain Ski Area, and Paradise on Mount Rainier. * WHEN...From 4 AM Wednesday to 10 AM PST Thursday. * IMPACTS...Plan on difficult travel conditions. * ADDITIONAL DETAILS...Snow fall rates of 1 to 2 inches per hour are possible. Highest snow fall rates and accumulations are expected to be between Stevens and Snoqualmie Pass. 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. && $$ WAZ513-080715- /O.NEW.KSEW.WW.Y.0033.211208T1200Z-211209T1300Z/ Olympics- including Hurricane Ridge 304 PM PST Tue Dec 7 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM WEDNESDAY TO 5 AM PST THURSDAY ABOVE 3000 FEET... * WHAT...Snow expected above 3000 feet. Total snow accumulations of 6 to 9 inches. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...From 4 AM Wednesday to 5 AM PST Thursday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
4 follow-up statements
026 WWUS46 KSEW 080651 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1051 PM PST Tue Dec 7 2021 WAZ567>569-081900- /O.CON.KSEW.WS.W.0014.211208T1200Z-211209T1800Z/ Cascades of Whatcom and Skagit Counties- Cascades of Snohomish and King Counties- Cascades of Pierce and Lewis Counties- including Newhalem, Stevens Pass, Snoqualmie Pass, Paradise, and Longmire 1051 PM PST Tue Dec 7 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 10 AM PST THURSDAY ABOVE 2000 FEET... * WHAT...Heavy snow expected above 2000 feet. Total snow accumulations of 12 to 18 inches. * WHERE...Cascade mountains of Whatcom, Skagit Snohomish, King Pierce and Lewis Counties, including the Mount Baker Ski Area, Stevens Pass, Snoqualmie Pass, the Crystal Mountain Ski Area, and Paradise on Mount Rainier. * WHEN...From 4 AM Wednesday to 10 AM PST Thursday. * IMPACTS...Plan on difficult travel conditions. * ADDITIONAL DETAILS...Snow fall rates of 1 to 2 inches per hour are possible. Highest snow fall rates and accumulations are expected to be between Stevens and Snoqualmie Pass.. 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. && $$ WAZ513-081900- /O.CON.KSEW.WW.Y.0033.211208T1200Z-211209T1300Z/ Olympics- including Hurricane Ridge 1051 PM PST Tue Dec 7 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM WEDNESDAY TO 5 AM PST THURSDAY ABOVE 3000 FEET... * WHAT...Snow expected above 3000 feet. Total snow accumulations of 6 to 9 inches. * WHERE...Olympic mountains including Hurricane Ridge. * WHEN...From 4 AM Wednesday to 5 AM PST Thursday. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
059 WWUS46 KSEW 081820 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 1020 AM PST Wed Dec 8 2021 WAZ567-569-081930- /O.CAN.KSEW.WS.W.0014.000000T0000Z-211209T1800Z/ Cascades of Whatcom and Skagit Counties- Cascades of Pierce and Lewis Counties- 1020 AM PST Wed Dec 8 2021 ...WINTER STORM WARNING IS CANCELLED... The heaviest and most persistent snow has ended. There may still be some moderate to heavy snow showers that move through. These will be mostly scattered and short lived. $$ WAZ513-081930- /O.CAN.KSEW.WW.Y.0033.000000T0000Z-211209T1300Z/ Olympics- 1020 AM PST Wed Dec 8 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... The heaviest and most persistent snow has ended for the majority of the region. There may still be some moderate to heavy snow showers that move through. These will be mostly scattered and short lived, particularly for high elevations on the west side of the mountains. $$ WAZ568-090230- /O.CON.KSEW.WS.W.0014.000000T0000Z-211209T1800Z/ Cascades of Snohomish and King Counties- including Darrington, Baring, Stevens Pass, Skykomish, and Snoqualmie Pass 1020 AM PST Wed Dec 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THURSDAY ABOVE 2000 FEET... * WHAT...Heavy snow continued above 2000 feet. Additional snow accumulations of 8 to 16 inches. * WHERE...Cascade mountains of Snohomish and King Counties, including Stevens Pass, and Snoqualmie Pass. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Plan on difficult travel conditions. * ADDITIONAL DETAILS...A persistent convergence zone will continue to impact the area between and including Stevens and Snoqualmie Pass. Snowfall rates of 1 to 2 inches per hour remain possible. 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. && $$ http://www.weather.gov/seattle
501 WWUS46 KSEW 090200 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 600 PM PST Wed Dec 8 2021 WAZ568-091300- /O.CON.KSEW.WS.W.0014.000000T0000Z-211209T1800Z/ Cascades of Snohomish and King Counties- including Darrington, Baring, Stevens Pass, Skykomish, and Snoqualmie Pass 600 PM PST Wed Dec 8 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THURSDAY ABOVE 2000 FEET... * WHAT...Heavy snow continued above 2000 feet. Additional snow accumulations of 2 to 10 inches. * WHERE...Cascade mountains and valleys of Snohomish and King Counties, including Darrington, Index, Skykomish, Stevens Pass, and Snoqualmie Pass. * WHEN...Until 10 AM PST Thursday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...A persistent convergence zone will continue to impact the area between and including Stevens and Snoqualmie Pass. Snowfall rates of 1 to 2 inches per hour remain possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. For the latest road conditions in Washington state, call 5 1 1. && $$ http://www.weather.gov/seattle
633 WWUS46 KSEW 091141 WSWSEW URGENT - WINTER WEATHER MESSAGE National Weather Service Seattle WA 341 AM PST Thu Dec 9 2021 WAZ568-100000- /O.CAN.KSEW.WS.W.0014.000000T0000Z-211209T1800Z/ /O.NEW.KSEW.WW.Y.0034.211209T1141Z-211210T0600Z/ /O.NEW.KSEW.WS.A.0008.211211T0600Z-211212T0600Z/ Cascades of Snohomish and King Counties- including Stevens Pass and Snoqualmie Pass 341 AM PST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 PM PST THIS EVENING ABOVE 2000 FEET... ...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING ABOVE 3000 FEET... ...WINTER STORM WARNING IS CANCELLED... * WHAT...For the Winter Weather Advisory above 2000 feet, snow continued. Additional snow accumulations of 4 to 10 inches. For the Winter Storm Watch above 3000 feet, heavy snow possible. Total snow accumulations of 18 to 30 inches possible. * WHERE...Cascade mountains Snohomish and King Counties, including Stevens and Snoqualmie Pass. * WHEN...For the Winter Weather Advisory, until 10 PM PST this evening. For the Winter Storm Watch, from Friday evening through Saturday evening. * IMPACTS...Travel could be very difficult in the passes through tonight and again Friday night and Saturday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. Monitor the latest forecasts for updates on this situation. For the latest road conditions in Washington state, call 5 1 1. && $$ WAZ567-569-100000- /O.NEW.KSEW.WS.A.0008.211211T0600Z-211212T0600Z/ Cascades of Whatcom and Skagit Counties- Cascades of Pierce and Lewis Counties- including Paradise 341 AM PST Thu Dec 9 2021 ...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY EVENING ABOVE 3000 FEET... * WHAT...Heavy snow possible above 3000 feet. Total snow accumulations of 18 to 30 inches possible. Winds could gust as high as 40 mph. * WHERE...Cascade mountains Whatcom and Skagit Counties including the Mount Baker Ski Area. The Cascade mountains Pierce and Lewis Counties, including the Crystal Mountain Ski Area, White Pass and Paradise on Mount Rainier. * WHEN...From Friday evening through Saturday evening. * IMPACTS...Travel could be very difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. && $$ 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 7, 5:32 AM PST | Small Craft Advisory | SEW | 9 days | |
| Dec 7, 1:32 PM PST | Gale Warning | SEW | 20 hr | |
| Dec 7, 1:32 PM PST | Small Craft Advisory | SEW | 7 hr | |
| Dec 7, 3:04 PM PST | Winter Weather Advisory | SEW | 19 hr | |
| Dec 7, 3:05 PM PST | Coastal Flood Advisory | SEW | San Juan | 21 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.