Alert archive / Washington / Wind Advisories in 2021
Wind Advisory 11, NWS Seattle, WA
NWS Seattle, WA issued this wind advisory at Feb 24, 2021, 8:22 AM PST for San Juan County, Washington. It took effect at Feb 24, 2021, 10:00 PM PST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Feb 24, 2021, 8:22 AM PST (16:22 UTC)
- In effect from
- Feb 24, 2021, 10:00 PM PST
- Expired
- Feb 25, 2021, 4:00 PM PST
- In force
- 18 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 16:27 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, 4.4 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
- 1066 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -70 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
844 WWUS76 KSEW 241622 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 822 AM PST Wed Feb 24 2021 WAZ516-517-250030- /O.NEW.KSEW.WI.Y.0011.210225T0600Z-210225T1500Z/ North Coast-Central Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 822 AM PST Wed Feb 24 2021 ...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 7 AM PST THURSDAY... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...North Coast and Central Coast. * WHEN...From 10 PM this evening to 7 AM PST Thursday. * 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. && $$ WAZ001-503-506-510-250030- /O.NEW.KSEW.WI.Y.0011.210225T0900Z-210225T1800Z/ San Juan County-Western Whatcom County-Western Skagit County- Admiralty Inlet Area- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, and Port Townsend 822 AM PST Wed Feb 24 2021 ...WIND ADVISORY IN EFFECT FROM 1 AM TO 10 AM PST THURSDAY... * WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected. * WHERE...San Juan County, Western Whatcom County, Western Skagit County and Admiralty Inlet Area. * WHEN...From 1 AM to 10 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
3 follow-up statements
758 WWUS76 KSEW 242312 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 312 PM PST Wed Feb 24 2021 WAZ510-251200- /O.NEW.KSEW.HW.A.0003.210226T0000Z-210226T1800Z/ /O.EXT.KSEW.WI.Y.0011.210225T0600Z-210226T0000Z/ Admiralty Inlet Area- Including the city of Port Townsend 312 PM PST Wed Feb 24 2021 ...WIND ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST THURSDAY... ...HIGH WIND WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH FRIDAY MORNING... * WHAT...For the Wind Advisory, southerly wind 25 to 35 mph with gusts up to 45 mph expected later tonight through mid afternoon on Thursday. For the High Wind Watch, west winds 25 to 40 mph with gusts up to 60 mph possible at times late Thursday afternoon through Friday morning. * WHERE...Admiralty Inlet Area. * WHEN...For the Wind Advisory, from 10 PM this evening to 4 PM PST Thursday. For the High Wind Watch, from Thursday afternoon through Friday 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. && $$ WAZ516-517-251200- /O.EXT.KSEW.WI.Y.0011.210225T0600Z-210225T1800Z/ North Coast-Central Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 312 PM PST Wed Feb 24 2021 ...WIND ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST THURSDAY... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph expected. * WHERE...North Coast and Central Coast. * WHEN...From 10 PM this evening to 10 AM PST Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ WAZ001-503-506-251200- /O.EXT.KSEW.WI.Y.0011.210225T0600Z-210226T0000Z/ San Juan County-Western Whatcom County-Western Skagit County- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 312 PM PST Wed Feb 24 2021 ...WIND ADVISORY NOW IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST THURSDAY... * WHAT...South winds 25 to 35 mph with gusts 45 to 55 mph expected. * WHERE...San Juan County, Western Whatcom County, Western Skagit County and Admiralty Inlet Area. * WHEN...From 10 PM this evening to 4 PM PST Thursday. * 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. && $$
279 WWUS76 KSEW 251110 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 310 AM PST Thu Feb 25 2021 WAZ510-260000- /O.UPG.KSEW.HW.A.0003.210226T0000Z-210226T1800Z/ /O.NEW.KSEW.HW.W.0003.210225T1800Z-210226T1800Z/ /O.EXT.KSEW.WI.Y.0011.000000T0000Z-210225T1800Z/ Admiralty Inlet Area- Including the city of Port Townsend 310 AM PST Thu Feb 25 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS MORNING... ...HIGH WIND WARNING IN EFFECT FROM 10 AM THIS MORNING TO 10 AM PST FRIDAY... * WHAT...For the Wind Advisory, southerly winds 25 to 35 mph with gusts up to 45 mph expected. For the High Wind Warning, west winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Admiralty Inlet Area. * WHEN...For the Wind Advisory, until 10 AM PST this morning. For the High Wind Warning, from 10 AM this morning to 10 AM PST Friday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WAZ516-517-260000- /O.EXT.KSEW.WI.Y.0011.000000T0000Z-210226T0000Z/ North Coast-Central Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 310 AM PST Thu Feb 25 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 45 to 50 mph expected. * WHERE...North Coast and Central Coast. * WHEN...Until 4 PM PST this afternoon. * 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. && $$ WAZ001-503-506-260000- /O.CON.KSEW.WI.Y.0011.000000T0000Z-210226T0000Z/ San Juan County-Western Whatcom County-Western Skagit County- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 310 AM PST Thu Feb 25 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...South winds 25 to 35 mph with gusts up to 45 to 55 mph expected. * WHERE...San Juan County, Western Whatcom County and Western Skagit County. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
308 WWUS76 KSEW 252348 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 348 PM PST Thu Feb 25 2021 WAZ516-517-260100- /O.EXP.KSEW.WI.Y.0011.000000T0000Z-210226T0000Z/ North Coast-Central Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, and Hoquiam 348 PM PST Thu Feb 25 2021 ...WIND ADVISORY WILL EXPIRE AT 4 PM PST THIS AFTERNOON... Blustery westerly winds will be 15 to 30 mph with local gusts to 40 mph through Friday. $$ WAZ001-503-506-260100- /O.EXP.KSEW.WI.Y.0011.000000T0000Z-210226T0000Z/ San Juan County-Western Whatcom County-Western Skagit County- Including the cities of Friday Harbor, Bellingham, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 348 PM PST Thu Feb 25 2021 ...WIND ADVISORY WILL EXPIRE AT 4 PM PST THIS AFTERNOON... Blustery southwest winds 15 to 30 mph with local gusts 30 to 40 mph will turn more to the northwest on Friday. $$ WAZ510-260600- /O.CON.KSEW.HW.W.0003.000000T0000Z-210226T1800Z/ Admiralty Inlet Area- Including the city of Port Townsend 348 PM PST Thu Feb 25 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Admiralty Inlet Area including Whidbey Island. * WHEN...For the Wind Advisory, until 10 AM PST this morning. For the High Wind Warning, from 10 AM this morning to 10 AM PST Friday. * 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. && $$
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 23, 10:09 PM PST | Winter Weather Advisory | SEW | 3 hr | |
| Feb 24, 3:34 AM PST | Winter Storm Watch | SEW | 11 hr | |
| Feb 24, 3:34 AM PST | Winter Weather Advisory | SEW | 48 hr | |
| Feb 24, 4:08 AM PST | Gale Watch | SEW | 10 hr | |
| Feb 24, 4:08 AM PST | Small Craft Advisory | SEW | 8 days | |
| Feb 24, 2:21 PM PST | Gale Warning | SEW | 61 hr | |
| Feb 24, 2:48 PM PST | Winter Storm Warning | SEW | 58 hr | |
| Feb 24, 3:12 PM PST | High Wind Watch | SEW | 12 hr |
Nearby
Wind Advisories in Washington, 2021Every wind advisory 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.