Alert archive / Washington / High Wind Watches in 2021
High Wind Watch 6, NWS Seattle, WA
NWS Seattle, WA issued this high wind watch at Dec 9, 2021, 3:16 PM PST for San Juan County, Washington. It took effect at Dec 10, 2021, 7:00 PM PST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 9, 2021, 3:16 PM PST (23:16 UTC)
- In effect from
- Dec 10, 2021, 7:00 PM PST
- Expired
- Dec 10, 2021, 4:07 AM PST
- In force
- 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 23:18 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, 11.3 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
- 595 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
242 WWUS76 KSEW 092316 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 316 PM PST Thu Dec 9 2021 WAZ504-507-509-511-512-555-556-558-559-100730- /O.NEW.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 316 PM PST Thu Dec 9 2021 ...WIND ADVISORY IN EFFECT FROM 7 PM FRIDAY TO 10 AM PST SATURDAY... * WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...Southwest Interior, Everett and Vicinity, Tacoma Area, Hood Canal Area, Lower Chehalis Valley Area, East Puget Sound Lowlands, Bellevue and Vicinity, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...From 7 PM Friday 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. && $$ WAZ001-503-506-510-516-517-100730- /O.NEW.KSEW.HW.A.0006.211211T0300Z-211211T1800Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area-North Coast-Central Coast- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Port Townsend, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 316 PM PST Thu Dec 9 2021 ...HIGH WIND WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING... * WHAT...South winds 35 to 45 mph with gusts up to 60 mph possible. * WHERE...San Juan County, Western Whatcom County, Western Skagit County, Admiralty Inlet Area, North Coast and Central Coast. * WHEN...From Friday evening through Saturday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
2 follow-up statements
833 WWUS76 KSEW 100812 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 1212 AM PST Fri Dec 10 2021 WAZ504-507-509-511-512-555-556-558-559-101615- /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 1212 AM 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 55 mph expected. * WHERE...Southwest Interior, Everett and Vicinity, Tacoma Area, Hood Canal Area, Lower Chehalis Valley Area, East Puget Sound Lowlands, Bellevue and Vicinity, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...From 7 PM Friday 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. && $$ WAZ001-503-506-510-516-517-101615- /O.CON.KSEW.HW.A.0006.211211T0300Z-211211T1800Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area-North Coast-Central Coast- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Port Townsend, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 1212 AM PST Fri Dec 10 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH SATURDAY MORNING... * WHAT...South winds 35 to 45 mph with gusts up to 60 mph possible. * WHERE...San Juan County, Western Whatcom County, Western Skagit County, Admiralty Inlet Area, North Coast and Central Coast. * WHEN...From Friday evening through Saturday morning. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$
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. && $$ WAZ504-507-509-511-512-555-556-558-559-110015- /O.CON.KSEW.WI.Y.0031.211211T0300Z-211211T1800Z/ Southwest Interior-Everett and Vicinity-Tacoma Area- Hood Canal Area-Lower Chehalis Valley Area- East Puget Sound Lowlands-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Olympia, Lacey, Tumwater, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Shelton, Montesano, Elma, McCleary, Covington-Sawyer-w, Maple Valley, Monroe, Prairie Ridge, Enumclaw, Bonney Lake, Woodinville, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 407 AM PST Fri Dec 10 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST SATURDAY... * WHAT...South winds 20 to 35 mph with gusts 40 to 50 mph expected. * WHERE...Tacoma Area, Bellevue and Vicinity, East Puget Sound Lowlands, Lower Chehalis Valley Area, Hood Canal Area, Everett and Vicinity, Southwest Interior, Seattle and Vicinity and Bremerton and Vicinity. * WHEN...From 7 PM this evening to 10 AM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. With the saturated ground there is an increasing chance of downed trees during this event which in turn increases the chances for power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 2:25 AM PST | Gale Watch | SEW | 11 hr | |
| Dec 9, 3:41 AM PST | Winter Storm Watch | SEW | 25 hr | |
| Dec 9, 3:41 AM PST | Winter Weather Advisory | SEW | 18 hr | |
| Dec 9, 1:27 PM PST | Gale Warning | SEW | 57 hr | |
| Dec 9, 1:27 PM PST | Small Craft Advisory | SEW | 25 hr | |
| Dec 9, 3:16 PM PST | Wind Advisory | SEW | 43 hr |
Nearby
High Wind Watches in Washington, 2021Every high wind watch 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.