Alert archive / Washington / High Wind Warnings in 2021
High Wind Warning 8, NWS Seattle, WA
NWS Seattle, WA issued this high wind warning at Dec 10, 2021, 4:07 AM PST for San Juan County, Washington. It took effect at Dec 10, 2021, 7:00 PM PST. It was in force for 13 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 10, 2021, 4:07 AM PST (12:07 UTC)
- In effect from
- Dec 10, 2021, 7:00 PM PST
- Expired
- Dec 11, 2021, 8:00 AM PST
- In force
- 13 hr
- Issued by
- NWS Seattle, WA
County San Juan County, WA
The radar
The Seattle radar (KATX), 54 km from the middle of the area, began a volume at 12:07 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, 0.1 hours before the alert went out and 127 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 702 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
627 WWUS76 KSEW 101207 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 407 AM PST Fri Dec 10 2021 WAZ001-503-506-510-516-517-110015- /O.UPG.KSEW.HW.A.0006.211211T0300Z-211211T1800Z/ /O.NEW.KSEW.HW.W.0008.211211T0300Z-211211T1200Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area-North Coast-Central Coast- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Port Townsend, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 407 AM PST Fri Dec 10 2021 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 4 AM PST SATURDAY... * WHAT...South winds 30 to 40 mph with gusts 50 to 60 mph expected. * WHERE...San Juan County, Western Whatcom County, Western Skagit County, Admiralty Inlet Area, North Coast and Central Coast. * WHEN...From 7 PM this evening to 4 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WAZ504-507-509-511-512-555-556-558-559-110015- /O.CON.KSEW.WI.Y.0031.211211T0300Z-211211T1800Z/ Southwest Interior-Everett and Vicinity-Tacoma Area- Hood Canal Area-Lower Chehalis Valley Area- East Puget Sound Lowlands-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Olympia, Lacey, Tumwater, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Shelton, Montesano, Elma, McCleary, Covington-Sawyer-w, Maple Valley, Monroe, Prairie Ridge, Enumclaw, Bonney Lake, Woodinville, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 407 AM PST Fri Dec 10 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST SATURDAY... * WHAT...South winds 20 to 35 mph with gusts 40 to 50 mph expected. * WHERE...Tacoma Area, Bellevue and Vicinity, East Puget Sound Lowlands, Lower Chehalis Valley Area, Hood Canal Area, Everett and Vicinity, Southwest Interior, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...From 7 PM this evening to 10 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. With the saturated ground there is an increasing chance of downed trees during this event which in turn increases the chances for power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
4 follow-up statements
229 WWUS76 KSEW 102239 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 239 PM PST Fri Dec 10 2021 WAZ001-503-506-510-516-517-110645- /O.CON.KSEW.HW.W.0008.211211T0300Z-211211T1200Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area-North Coast-Central Coast- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Port Townsend, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 239 PM PST Fri Dec 10 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 4 AM PST SATURDAY... * WHAT...South winds 35 to 45 mph with gusts up to 60 mph expected. * WHERE...San Juan County, Western Whatcom County, North Coast, Central Coast, Western Skagit County and Admiralty Inlet Area. * WHEN...From 7 PM this evening to 4 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WAZ504-507-509-511-512-555-556-558-559-110645- /O.CON.KSEW.WI.Y.0031.211211T0300Z-211211T1800Z/ Southwest Interior-Everett and Vicinity-Tacoma Area- Hood Canal Area-Lower Chehalis Valley Area- East Puget Sound Lowlands-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Olympia, Lacey, Tumwater, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Shelton, Montesano, Elma, McCleary, Covington-Sawyer-w, Maple Valley, Monroe, Prairie Ridge, Enumclaw, Bonney Lake, Woodinville, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 239 PM PST Fri Dec 10 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST SATURDAY... * WHAT...South winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Tacoma Area, Bellevue and Vicinity, East Puget Sound Lowlands, Lower Chehalis Valley Area, Hood Canal Area, Everett and Vicinity, Southwest Interior, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...From 7 PM this evening to 10 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
581 WWUS76 KSEW 110430 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 830 PM PST Fri Dec 10 2021 WAZ001-503-506-510-516-517-111200- /O.CON.KSEW.HW.W.0008.000000T0000Z-211211T1200Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area-North Coast-Central Coast- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Port Townsend, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 830 PM PST Fri Dec 10 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... * WHAT...South winds 30 to 40 mph with gusts up to 60 mph. * WHERE...San Juan County, Western Whatcom County, North Coast, Central Coast, Western Skagit County and Admiralty Inlet Area. * WHEN...Until 4 AM PST Saturday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WAZ504-507-509-511-512-555-556-558-559-111230- /O.CON.KSEW.WI.Y.0031.000000T0000Z-211211T1800Z/ Southwest Interior-Everett and Vicinity-Tacoma Area- Hood Canal Area-Lower Chehalis Valley Area- East Puget Sound Lowlands-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Olympia, Lacey, Tumwater, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Shelton, Montesano, Elma, McCleary, Covington-Sawyer-w, Maple Valley, Monroe, Prairie Ridge, Enumclaw, Bonney Lake, Woodinville, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 830 PM PST Fri Dec 10 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST SATURDAY... * WHAT...South winds 20 to 35 mph with gusts up to 50 mph. * WHERE...Tacoma Area, Bellevue and Vicinity, East Puget Sound Lowlands, Lower Chehalis Valley Area, Hood Canal Area, Everett and Vicinity, Southwest Interior, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...Until 10 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
966 WWUS76 KSEW 111146 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 346 AM PST Sat Dec 11 2021 WAZ516-517-111300- /O.CAN.KSEW.HW.W.0008.000000T0000Z-211211T1200Z/ North Coast-Central Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 346 AM PST Sat Dec 11 2021 ...HIGH WIND WARNING IS CANCELLED... Wind will gradually ease today, but remain gusty out of the southwest 20 to 30 mph into this afternoon. $$ WAZ001-503-506-510-111600- /O.EXT.KSEW.HW.W.0008.000000T0000Z-211211T1600Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, and Port Townsend 346 AM PST Sat Dec 11 2021 ...HIGH WIND WARNING NOW IN EFFECT UNTIL 8 AM PST THIS MORNING... * WHAT...South winds 30 to 40 mph with gusts up to 60 mph. * WHERE...San Juan County, Western Whatcom County, North Coast, Central Coast, Western Skagit County and Admiralty Inlet Area. * WHEN...Until 8 AM PST this morning. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WAZ504-507-509-511-512-555-556-558-559-111800- /O.CON.KSEW.WI.Y.0031.000000T0000Z-211211T1800Z/ Southwest Interior-Everett and Vicinity-Tacoma Area- Hood Canal Area-Lower Chehalis Valley Area- East Puget Sound Lowlands-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Olympia, Lacey, Tumwater, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Shelton, Montesano, Elma, McCleary, Covington-Sawyer-w, Maple Valley, Monroe, Prairie Ridge, Enumclaw, Bonney Lake, Woodinville, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 346 AM PST Sat Dec 11 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...South winds 20 to 35 mph with gusts up to 50 mph. * WHERE...Tacoma Area, Bellevue and Vicinity, East Puget Sound Lowlands, Lower Chehalis Valley Area, Hood Canal Area, Everett and Vicinity, Southwest Interior, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...Until 10 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
992 WWUS76 KSEW 111550 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 750 AM PST Sat Dec 11 2021 WAZ001-503-506-510-111700- /O.EXP.KSEW.HW.W.0008.000000T0000Z-211211T1600Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, and Port Townsend 750 AM PST Sat Dec 11 2021 ...HIGH WIND WARNING WILL EXPIRE AT 8 AM PST THIS MORNING... Recent observations have indicated that the strongest winds have subsided. Breezy conditions are still expected for much of the day out of the south/southwest. $$ WAZ504-507-509-511-512-555-556-558-559-111800- /O.CON.KSEW.WI.Y.0031.000000T0000Z-211211T1800Z/ Southwest Interior-Everett and Vicinity-Tacoma Area- Hood Canal Area-Lower Chehalis Valley Area- East Puget Sound Lowlands-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Olympia, Lacey, Tumwater, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Shelton, Montesano, Elma, McCleary, Covington-Sawyer-w, Maple Valley, Monroe, Prairie Ridge, Enumclaw, Bonney Lake, Woodinville, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 750 AM PST Sat Dec 11 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Southwest winds 20 to 30 mph with gusts up to 35 mph. * WHERE...Tacoma Area, Bellevue and Vicinity, East Puget Sound Lowlands, Lower Chehalis Valley Area, Hood Canal Area, Southwest Interior, Everett and Vicinity, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...Until 10 AM PST this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 10, 2:36 AM PST | Small Craft Advisory | SEW | 12 hr | |
| Dec 10, 4:19 AM PST | Winter Storm Warning | SEW | 48 hr | |
| Dec 10, 7:18 AM PST | Flood Watch | SEW | Lewis, Mason | 32 hr |
Nearby
High Wind Warnings in Washington, 2021Every high wind 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.