Alert archive / Washington / Wind Advisories in 2021
Wind Advisory 34, NWS Seattle, WA
NWS Seattle, WA issued this wind advisory at Dec 25, 2021, 3:13 AM PST for San Juan County, Washington. It was in force for 55 hr.
The area
The counties it named.
The facts
- Issued
- Dec 25, 2021, 3:13 AM PST (11:13 UTC)
- Expired
- Dec 27, 2021, 10:00 AM PST
- In force
- 55 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 11:14 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, 11.2 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
- 659 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- -9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
317 WWUS76 KSEW 251113 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 313 AM PST Sat Dec 25 2021 WAZ503-260000- /O.NEW.KSEW.WI.Y.0034.211225T1113Z-211227T1200Z/ Western Whatcom County- Including the city of Bellingham 313 AM PST Sat Dec 25 2021 ...WIND ADVISORY IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Northeast winds 20 to 35 mph with gusts up to 50 mph. * WHERE...Western Whatcom County. * WHEN...Until 4 AM PST Monday. * 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. && $$ WAZ001-506-260000- /O.NEW.KSEW.WI.Y.0034.211226T0000Z-211227T1200Z/ San Juan County-Western Skagit County- Including the cities of Friday Harbor, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 313 AM PST Sat Dec 25 2021 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST MONDAY... * WHAT...Northeast winds 20 to 35 mph with gusts up to 50 mph expected. * WHERE...San Juan County and Western Skagit County. * WHEN...From 4 PM this afternoon to 4 AM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
6 follow-up statements
053 WWUS76 KSEW 252325 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 325 PM PST Sat Dec 25 2021 WAZ503-261115- /O.CON.KSEW.WI.Y.0034.000000T0000Z-211227T1200Z/ Western Whatcom County- Including the city of Bellingham 325 PM PST Sat Dec 25 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Western Whatcom County. * WHEN...Until 4 AM PST Monday. * 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. && $$ WAZ001-506-261115- /O.CON.KSEW.WI.Y.0034.211226T0000Z-211227T1200Z/ San Juan County-Western Skagit County- Including the cities of Friday Harbor, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 325 PM PST Sat Dec 25 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...San Juan County and Western Skagit County. * WHEN...Until 4 AM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
542 WWUS76 KSEW 261109 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 309 AM PST Sun Dec 26 2021 WAZ503-262330- /O.CON.KSEW.WI.Y.0034.000000T0000Z-211227T1200Z/ Western Whatcom County- Including the city of Bellingham 309 AM PST Sun Dec 26 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Northeast winds 20 to 35 mph with gusts up to 50 mph. * WHERE...Western Whatcom County. * WHEN...Until 4 AM PST Monday. * 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. && $$ WAZ001-506-262330- /O.CON.KSEW.WI.Y.0034.000000T0000Z-211227T1200Z/ San Juan County-Western Skagit County- Including the cities of Friday Harbor, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 309 AM PST Sun Dec 26 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Northeast winds 20 to 35 mph with gusts up to 50 mph. * WHERE...San Juan County and Western Skagit County. * WHEN...Until 4 AM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
596 WWUS76 KSEW 262241 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 241 PM PST Sun Dec 26 2021 WAZ503-270645- /O.CON.KSEW.WI.Y.0034.000000T0000Z-211227T1200Z/ Western Whatcom County- Including the city of Bellingham 241 PM PST Sun Dec 26 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 45 mph. * WHERE...Western Whatcom County. * WHEN...Until 4 AM PST Monday. * 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. && $$ WAZ001-506-270645- /O.CON.KSEW.WI.Y.0034.000000T0000Z-211227T1200Z/ San Juan County-Western Skagit County- Including the cities of Friday Harbor, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 241 PM PST Sun Dec 26 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 60 mph. * WHERE...San Juan County and Western Skagit County. * WHEN...Until 4 AM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
936 WWUS76 KSEW 270228 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 628 PM PST Sun Dec 26 2021 WAZ503-271030- /O.UPG.KSEW.WI.Y.0034.000000T0000Z-211227T1200Z/ /O.NEW.KSEW.HW.W.0010.211227T0300Z-211227T1800Z/ Western Whatcom County- Including the city of Bellingham 628 PM PST Sun Dec 26 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 10 AM PST MONDAY... * WHAT...Northeast winds 40 to 50 mph with gusts up to 60 mph expected. * WHERE...Western Whatcom County. * WHEN...Until 10 AM PST Monday. * 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. && $$ WAZ001-506-271030- /O.EXT.KSEW.WI.Y.0034.000000T0000Z-211227T1800Z/ San Juan County-Western Skagit County- Including the cities of Friday Harbor, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 628 PM PST Sun Dec 26 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 10 AM PST MONDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 55 mph. * WHERE...San Juan County and Western Skagit County. * WHEN...Until 10 AM PST Monday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
609 WWUS76 KSEW 270918 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 118 AM PST Mon Dec 27 2021 WAZ503-271800- /O.CON.KSEW.HW.W.0010.000000T0000Z-211227T1800Z/ Western Whatcom County- Including the city of Bellingham 118 AM PST Mon Dec 27 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Northeast winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Western Whatcom County. * WHEN...Until 10 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. && $$ WAZ001-506-271800- /O.CON.KSEW.WI.Y.0034.000000T0000Z-211227T1800Z/ San Juan County-Western Skagit County- Including the cities of Friday Harbor, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 118 AM PST Mon Dec 27 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Northeast winds 20 to 35 mph with gusts up to 45 mph. * WHERE...San Juan County and Western Skagit County. * WHEN...Until 10 AM PST this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
439 WWUS76 KSEW 271752 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 952 AM PST Mon Dec 27 2021 WAZ503-271900- /O.EXP.KSEW.HW.W.0010.000000T0000Z-211227T1800Z/ Western Whatcom County- Including the city of Bellingham 952 AM PST Mon Dec 27 2021 ...HIGH WIND WARNING WILL EXPIRE AT 10 AM PST THIS MORNING... The strongest winds have subsided over the area this morning. Winds will still remain breezy out of the northeast through this afternoon, generally sustained around 15 mph, with gusts around 25 mph. $$ WAZ001-506-271900- /O.EXP.KSEW.WI.Y.0034.000000T0000Z-211227T1800Z/ San Juan County-Western Skagit County- Including the cities of Friday Harbor, Mount Vernon, Anacortes, Sedro-Woolley, and Burlington 952 AM PST Mon Dec 27 2021 ...WIND ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING... The strongest winds have subsided over the area this morning. Winds will still remain breezy out of the northeast through this afternoon, generally sustained around 15 mph, with gusts around 25 mph. $$
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 25, 5:26 AM PST | Small Craft Advisory | SEW | 11 hr | |
| Dec 25, 2:55 PM PST | Heavy Freezing Spray Advisory | SEW | 43 hr | |
| Dec 25, 3:55 PM PST | Wind Chill Advisory | SEW | San Juan | 42 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.