Alert archive / Washington / Wind Advisories in 2021
Wind Advisory 18, NWS Seattle, WA
NWS Seattle, WA issued this wind advisory at Sep 28, 2021, 2:56 PM PDT for San Juan County, Washington. It took effect at Sep 29, 2021, 3:43 AM PDT. It was in force for 26 hr.
The area
The counties it named.
The facts
- Issued
- Sep 28, 2021, 2:56 PM PDT (21:56 UTC)
- In effect from
- Sep 29, 2021, 3:43 AM PDT
- Expired
- Sep 30, 2021, 6:00 AM PDT
- In force
- 26 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 22:00 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, 9.9 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
- 81 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
339 WWUS76 KSEW 282156 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 256 PM PDT Tue Sep 28 2021 WAZ001-503-290600- /O.NEW.KSEW.WI.Y.0018.210929T1800Z-210930T1000Z/ San Juan County-Western Whatcom County- Including the cities of Friday Harbor and Bellingham 256 PM PDT Tue Sep 28 2021 ...WIND ADVISORY IN EFFECT FROM 11 AM WEDNESDAY TO 3 AM PDT THURSDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 45 mph expected. * WHERE...San Juan County and Western Whatcom County. * WHEN...From 11 AM Wednesday to 3 AM PDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...While winds will begin to relax Thursday morning, breezy conditions are still expected as a cold front moves through the area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
5 follow-up statements
519 WWUS76 KSEW 290513 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 1013 PM PDT Tue Sep 28 2021 WAZ001-503-291500- /O.CON.KSEW.WI.Y.0018.210929T1800Z-210930T1000Z/ San Juan County-Western Whatcom County- Including the cities of Friday Harbor and Bellingham 1013 PM PDT Tue Sep 28 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 11 AM WEDNESDAY TO 3 AM PDT THURSDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 50 mph expected. * WHERE...Western Whatcom County and San Juan County. * WHEN...From 11 AM Wednesday to 3 AM PDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...While winds will begin to relax Thursday morning, breezy conditions are still expected as a cold front moves through the area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
226 WWUS76 KSEW 291043 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 343 AM PDT Wed Sep 29 2021 WAZ516-300000- /O.EXB.KSEW.WI.Y.0018.210929T1043Z-210930T1300Z/ North Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, and Queets 343 AM PDT Wed Sep 29 2021 ...WIND ADVISORY IN EFFECT UNTIL 6 AM PDT THURSDAY... * WHAT...South winds 25 to 35 mph with gusts up to 50 mph. * WHERE...North Coast. * WHEN...Until 6 AM PDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will peak mid morning with another peak late tonight. Strongest winds will be near the immediate coast. Winds will ease early Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ WAZ510-300000- /O.EXB.KSEW.WI.Y.0018.210929T1800Z-210930T1300Z/ Admiralty Inlet Area- Including the city of Port Townsend 343 AM PDT Wed Sep 29 2021 ...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 6 AM PDT THURSDAY... * WHAT...Southeast winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Admiralty Inlet Area. * WHEN...From 11 AM this morning to 6 AM PDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will peak late tonight then ease early Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ WAZ001-503-300000- /O.EXT.KSEW.WI.Y.0018.210929T1800Z-210930T1300Z/ San Juan County-Western Whatcom County- Including the cities of Friday Harbor and Bellingham 343 AM PDT Wed Sep 29 2021 ...WIND ADVISORY NOW IN EFFECT FROM 11 AM THIS MORNING TO 6 AM PDT THURSDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 50 mph expected. * WHERE...Western Whatcom County and San Juan County. * WHEN...From 11 AM this morning to 6 AM PDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...Winds will peak late tonight then ease early Thursday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
863 WWUS76 KSEW 292129 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 229 PM PDT Wed Sep 29 2021 WAZ516-300530- /O.CON.KSEW.WI.Y.0018.000000T0000Z-210930T1300Z/ North Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, and Queets 229 PM PDT Wed Sep 29 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT THURSDAY... * WHAT...South winds 25 to 35 mph with gusts up to 45 mph. * WHERE...North Coast. * WHEN...Until 6 AM PDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ WAZ001-503-510-300530- /O.CON.KSEW.WI.Y.0018.000000T0000Z-210930T1300Z/ San Juan County-Western Whatcom County-Admiralty Inlet Area- Including the cities of Friday Harbor, Bellingham, and Port Townsend 229 PM PDT Wed Sep 29 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT THURSDAY... * WHAT...Southeast winds 30 to 40 mph with gusts up to 50 mph. * WHERE...Western Whatcom County, Admiralty Inlet Area and San Juan County. * WHEN...Until 6 AM PDT 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. && $$
180 WWUS76 KSEW 300336 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 836 PM PDT Wed Sep 29 2021 WAZ516-301145- /O.CON.KSEW.WI.Y.0018.000000T0000Z-210930T1300Z/ North Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, and Queets 836 PM PDT Wed Sep 29 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT THURSDAY... * WHAT...South winds 15 to 30 mph with gusts up to 45 mph. * WHERE...North Coast. * WHEN...Until 6 AM PDT Thursday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ WAZ001-503-510-301145- /O.CON.KSEW.WI.Y.0018.000000T0000Z-210930T1300Z/ San Juan County-Western Whatcom County-Admiralty Inlet Area- Including the cities of Friday Harbor, Bellingham, and Port Townsend 836 PM PDT Wed Sep 29 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT THURSDAY... * WHAT...Southeast winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Western Whatcom County, Admiralty Inlet Area and San Juan County. * WHEN...Until 6 AM PDT 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. && $$
589 WWUS76 KSEW 301033 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 333 AM PDT Thu Sep 30 2021 WAZ516-301300- /O.CON.KSEW.WI.Y.0018.000000T0000Z-210930T1300Z/ North Coast- Including the cities of Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, and Queets 333 AM PDT Thu Sep 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT EARLY THIS MORNING... * WHAT...South winds 15 to 30 mph with gusts up to 45 mph. * WHERE...North Coast. * WHEN...Until 6 AM PDT early this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$ WAZ001-503-510-301300- /O.CON.KSEW.WI.Y.0018.000000T0000Z-210930T1300Z/ San Juan County-Western Whatcom County-Admiralty Inlet Area- Including the cities of Friday Harbor, Bellingham, and Port Townsend 333 AM PDT Thu Sep 30 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT EARLY THIS MORNING... * WHAT...South winds 20 to 30 mph with gusts up to 40 mph. * WHERE...Western Whatcom County, Admiralty Inlet Area and San Juan County. * WHEN...Until 6 AM PDT early 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 |
|---|---|---|---|---|
| Sep 28, 2:48 AM PDT | Gale Watch | SEW | 12 hr | |
| Sep 28, 3:09 PM PDT | Gale Warning | SEW | 38 hr | |
| Sep 28, 3:09 PM PDT | Small Craft Advisory | 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.