Alert archive / Washington / High Wind Warnings in 2021
High Wind Warning 9, NWS Seattle, WA
NWS Seattle, WA issued this high wind warning at Dec 17, 2021, 3:27 AM PST for San Juan County, Washington. It took effect at Dec 17, 2021, 10:00 PM PST. It was in force for 14 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, 3:27 AM PST (11:27 UTC)
- In effect from
- Dec 17, 2021, 10:00 PM PST
- Expired
- Dec 18, 2021, 12:00 PM PST
- In force
- 14 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 11:26 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 00:00Z, 11.5 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
646 WWUS76 KSEW 171127 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 327 AM PST Fri Dec 17 2021 WAZ001-510-180000- /O.NEW.KSEW.HW.W.0009.211218T0300Z-211219T0000Z/ San Juan County-Admiralty Inlet Area- Including the cities of Friday Harbor and Port Townsend 327 AM PST Fri Dec 17 2021 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 4 PM PST SATURDAY... * WHAT...South winds 35 to 45 mph with gusts up to 60 mph expected. * WHERE...San Juan County and Admiralty Inlet Area. * WHEN...From 7 PM this evening to 4 PM 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. && $$ WAZ503-506-514-516-517-180000- /O.NEW.KSEW.WI.Y.0032.211218T0300Z-211219T0000Z/ Western Whatcom County-Western Skagit County- Eastern Strait of Juan de Fuca-North Coast-Central Coast- Including the cities of Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Sequim, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 327 AM PST Fri Dec 17 2021 ...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 4 PM PST SATURDAY... * WHAT...South winds 30 to 40 mph with gusts up to 50 mph expected. * WHERE...Western Whatcom County, Western Skagit County, Eastern Strait of Juan de Fuca, North Coast and Central Coast. * WHEN...From 7 PM this evening to 4 PM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
4 follow-up statements
618 WWUS76 KSEW 172211 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 211 PM PST Fri Dec 17 2021 WAZ001-510-181030- /O.EXT.KSEW.HW.W.0009.211218T0600Z-211219T0000Z/ San Juan County-Admiralty Inlet Area- Including the cities of Friday Harbor and Port Townsend 211 PM PST Fri Dec 17 2021 ...HIGH WIND WARNING NOW IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST SATURDAY... * WHAT...South winds 30 to 45 mph with gusts up to 60 mph expected. * WHERE...San Juan County and Admiralty Inlet Area. * WHEN...From 10 PM this evening to 4 PM 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. && $$ WAZ503-506-514-516-517-181030- /O.EXT.KSEW.WI.Y.0032.211218T0600Z-211219T0000Z/ Western Whatcom County-Western Skagit County- Eastern Strait of Juan de Fuca-North Coast-Central Coast- Including the cities of Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Sequim, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 211 PM PST Fri Dec 17 2021 ...WIND ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST SATURDAY... * WHAT...South winds 20 to 35 mph with gusts up to 50 mph expected. * WHERE...Western Whatcom County, North Coast, Central Coast, Eastern Strait of Juan de Fuca and Western Skagit County. * WHEN...From 10 PM this evening to 4 PM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
378 WWUS76 KSEW 180353 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 753 PM PST Fri Dec 17 2021 WAZ001-510-181800- /O.CON.KSEW.HW.W.0009.211218T0600Z-211219T0000Z/ San Juan County-Admiralty Inlet Area- Including the cities of Friday Harbor and Port Townsend 753 PM PST Fri Dec 17 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST SATURDAY... * WHAT...South winds 30 to 45 mph with gusts up to 60 mph expected. * WHERE...San Juan County and Admiralty Inlet Area. * WHEN...From 10 PM this evening to 4 PM 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. && $$ WAZ503-506-514-516-517-181800- /O.CON.KSEW.WI.Y.0032.211218T0600Z-211219T0000Z/ Western Whatcom County-Western Skagit County- Eastern Strait of Juan de Fuca-North Coast-Central Coast- Including the cities of Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Sequim, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 753 PM PST Fri Dec 17 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SATURDAY... * WHAT...South winds 20 to 35 mph with gusts up to 50 mph expected. * WHERE...Western Whatcom County, North Coast, Central Coast, Eastern Strait of Juan de Fuca and Western Skagit County. * WHEN...From 10 PM this evening to 4 PM PST Saturday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
674 WWUS76 KSEW 181142 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 342 AM PST Sat Dec 18 2021 WAZ510-182000- /O.NEW.KSEW.WI.Y.0033.211218T2000Z-211219T0300Z/ /O.EXT.KSEW.HW.W.0009.000000T0000Z-211218T2000Z/ Admiralty Inlet Area- Including the city of Port Townsend 342 AM PST Sat Dec 18 2021 ...HIGH WIND WARNING NOW IN EFFECT UNTIL NOON PST TODAY... ...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM PST THIS EVENING... * WHAT...For the High Wind Warning, south winds 30 to 40 mph with gusts up to 60 mph. For the Wind Advisory, west winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...Admiralty Inlet Area. * WHEN...For the High Wind Warning, until noon PST today. For the Wind Advisory, from noon today to 7 PM PST this evening. * 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. && $$ WAZ001-182000- /O.EXT.KSEW.HW.W.0009.000000T0000Z-211218T2000Z/ San Juan County- Including the city of Friday Harbor 342 AM PST Sat Dec 18 2021 ...HIGH WIND WARNING NOW IN EFFECT UNTIL NOON PST TODAY... * WHAT...South winds 35 to 45 mph with gusts up to 55 mph. * WHERE...San Juan County. * WHEN...Until noon PST today. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WAZ503-506-514-516-517-182000- /O.EXT.KSEW.WI.Y.0032.000000T0000Z-211218T2000Z/ Western Whatcom County-Western Skagit County- Eastern Strait of Juan de Fuca-North Coast-Central Coast- Including the cities of Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Sequim, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 342 AM PST Sat Dec 18 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL NOON PST TODAY... * WHAT...South winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Western Whatcom County, North Coast, Central Coast, Eastern Strait of Juan de Fuca and Western Skagit County. * WHEN...Until noon PST today. * 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. && $$
604 WWUS76 KSEW 181957 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 1157 AM PST Sat Dec 18 2021 WAZ510-190300- /O.EXP.KSEW.HW.W.0009.000000T0000Z-211218T2000Z/ /O.CON.KSEW.WI.Y.0033.211218T2000Z-211219T0300Z/ Admiralty Inlet Area- Including the city of Port Townsend 1157 AM PST Sat Dec 18 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING... ...HIGH WIND WARNING WILL EXPIRE AT NOON PST TODAY... * WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Admiralty Inlet Area. * WHEN...Until 7 PM PST this evening. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ WAZ001-182100- /O.EXP.KSEW.HW.W.0009.000000T0000Z-211218T2000Z/ San Juan County- Including the city of Friday Harbor 1157 AM PST Sat Dec 18 2021 ...HIGH WIND WARNING WILL EXPIRE AT NOON PST TODAY... Winds will be breezy through today, tapering off tonight. $$ WAZ503-506-514-516-517-182100- /O.EXP.KSEW.WI.Y.0032.000000T0000Z-211218T2000Z/ Western Whatcom County-Western Skagit County- Eastern Strait of Juan de Fuca-North Coast-Central Coast- Including the cities of Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Sequim, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 1157 AM PST Sat Dec 18 2021 ...WIND ADVISORY WILL EXPIRE AT NOON PST TODAY... Winds will be breezy through today, tapering off tonight. $$
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 | Wind Advisory | SEW | 33 hr | |
| Dec 17, 2:16 PM PST | Winter Storm Warning | SEW | 32 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
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.