Alert archive / Washington / Wind Advisories in 2021
Wind Advisory 5, NWS Seattle, WA
NWS Seattle, WA issued this wind advisory at Jan 12, 2021, 8:02 PM PST for San Juan County, Washington. It took effect at Jan 12, 2021, 10:00 PM PST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Jan 12, 2021, 8:02 PM PST (04:02 UTC)
- In effect from
- Jan 12, 2021, 10:00 PM PST
- Expired
- Jan 13, 2021, 6:00 AM PST
- In force
- 8 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 04:06 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, 4.0 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
- 2 J/kg
- Mixed-layer CIN
- -15 J/kg
- Mixed-layer LCL
- 470 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- 267 m²/s²
- 0-3 km storm-relative helicity
- 455 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
227 WWUS76 KSEW 130402 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 802 PM PST Tue Jan 12 2021 WAZ001-503-504-506-507-509>512-514>517-556-558-559-131215- /O.NEW.KSEW.WI.Y.0005.210113T0600Z-210113T1400Z/ San Juan County-Western Whatcom County-Southwest Interior- Western Skagit County-Everett and Vicinity-Tacoma Area- Admiralty Inlet Area-Hood Canal Area-Lower Chehalis Valley Area- Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca- North Coast-Central Coast-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Friday Harbor, Bellingham, Olympia, Lacey, Tumwater, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Port Townsend, Shelton, Montesano, Elma, McCleary, Sequim, Clallam Bay, Joyce, Sekiu, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, Hoquiam, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 802 PM PST Tue Jan 12 2021 ...WIND ADVISORY IN EFFECT UNTIL 6 AM PST WEDNESDAY... * WHAT...Southwest winds 20 to 35 mph with gusts 40 to 50 mph. Locations near the Strait of Juan de Fuca winds becoming west 20 to 35 mph with gusts to 40 to 50 mph after midnight. * WHERE...Portions of northwest and west central Washington. * WHEN...Until 6 AM PST Wednesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. With the saturated ground weaker trees have a better chance of being toppled. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
2 follow-up statements
061 WWUS76 KSEW 131117 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 317 AM PST Wed Jan 13 2021 WAZ001-503-504-506-507-509>512-514>517-556-558-559-131400- /O.CON.KSEW.WI.Y.0005.000000T0000Z-210113T1400Z/ San Juan County-Western Whatcom County-Southwest Interior- Western Skagit County-Everett and Vicinity-Tacoma Area- Admiralty Inlet Area-Hood Canal Area-Lower Chehalis Valley Area- Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca- North Coast-Central Coast-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Friday Harbor, Bellingham, Olympia, Lacey, Tumwater, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Port Townsend, Shelton, Montesano, Elma, McCleary, Sequim, Clallam Bay, Joyce, Sekiu, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, Hoquiam, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 317 AM PST Wed Jan 13 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS MORNING... * WHAT...Winds have peaked and have begun to decrease this morning. Winds will remain gusty, with west winds 20 to 30 mph with gusts 35 to 40 mph remain possible this morning. * WHERE...Portions of northwest and west central Washington. * WHEN...Until 6 AM PST this morning. * IMPACTS...Gusty winds could blow around unsecured objects. Weakened trees and additional tree limbs could be blown down, resulting in additional power outages across the region. Power restoration efforts may be hampered by continued gusty winds this morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. && $$
577 WWUS76 KSEW 131348 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 548 AM PST Wed Jan 13 2021 WAZ001-503-504-506-507-509>512-514>517-556-558-559-131500- /O.EXP.KSEW.WI.Y.0005.000000T0000Z-210113T1400Z/ San Juan County-Western Whatcom County-Southwest Interior- Western Skagit County-Everett and Vicinity-Tacoma Area- Admiralty Inlet Area-Hood Canal Area-Lower Chehalis Valley Area- Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca- North Coast-Central Coast-Bellevue and Vicinity- Seattle and Vicinity-Bremerton and Vicinity- Including the cities of Friday Harbor, Bellingham, Olympia, Lacey, Tumwater, Mount Vernon, Anacortes, Sedro-Woolley, Burlington, Everett, Edmonds, Lynnwood, Marysville, Tacoma, Port Townsend, Shelton, Montesano, Elma, McCleary, Sequim, Clallam Bay, Joyce, Sekiu, Beaver, Clearwater, Forks, La Push, Neah Bay, Ozette, Queets, Aberdeen, Hoquiam, Redmond, Kirkland, Bothell, Kenmore, Newport Hills, Sahalee, Pine Lake, Seattle, Bremerton, and Silverdale 548 AM PST Wed Jan 13 2021 ...WIND ADVISORY WILL EXPIRE AT 6 AM PST EARLY THIS MORNING... While winds are generally trending down in intensity this morning, impacts will likely linger as occasional gusts of 30 to 40 mph remain possible. This may result in additional weakened trees or tree limbs coming down, causing additional power outages. Power restoration efforts may be hampered in some areas by continued gusty winds this morning. $$
The office that day
Everything else NWS Seattle, WA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 12, 4:32 PM PST | River Flood Warning | SEW | Thurston | 43 hr |
| Jan 12, 4:32 PM PST | River Flood Warning | SEW | Lewis | 39 hr |
| Jan 12, 9:08 PM PST | Small Craft Advisory | SEW | 6 days | |
| Jan 12, 11:14 PM PST | River Flood Warning | SEW | Grays Harbor | 12 hr |
| Jan 13, 12:19 AM PST | Severe Thunderstorm Warning | SEW | Island, Jefferson, San Juan, Skagit, Snohomish | 39 min |
| Jan 13, 12:27 AM PST | Special Marine Warning | SEW | 33 min | |
| Jan 13, 1:09 AM PST | Special Weather Statement | SEW | Snohomish | 51 min |
| Jan 13, 1:57 AM PST | River Flood Warning | SEW | Lewis | 18 hr |
| Jan 13, 1:57 AM PST | River Flood Warning | SEW | Lewis | 17 hr |
| Jan 13, 4:50 AM PST | River Flood Warning | SEW | Snohomish | 9 hr |
| Jan 13, 4:50 AM PST | River Flood Warning | SEW | Snohomish | 12 hr |
| Jan 13, 5:03 AM PST | River Flood Warning | SEW | Snohomish | 19 hr |
| Jan 13, 6:27 AM PST | River Flood Warning | SEW | King, Pierce | 41 hr |
| Jan 13, 6:27 AM PST | River Flood Warning | SEW | Snohomish | 22 hr |
| Jan 13, 8:32 AM PST | Gale Warning | SEW | 3 hr | |
| Jan 13, 8:32 AM PST | Small Craft Advisory | SEW | 5 hr | |
| Jan 13, 12:31 PM PST | River Flood Warning | SEW | Grays Harbor | 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.