Alert archive / Idaho / Wind Advisories in 2021
Wind Advisory 12, NWS Missoula, MT
NWS Missoula, MT issued this wind advisory at Nov 15, 2021, 1:15 AM PST for Clearwater County, Idaho County, Idaho. It took effect at Nov 15, 2021, 4:00 PM PST. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Nov 15, 2021, 1:15 AM PST (09:15 UTC)
- In effect from
- Nov 15, 2021, 4:00 PM PST
- Expired
- Nov 16, 2021, 12:00 AM PST
- In force
- 8 hr
- Issued by
- NWS Missoula, MT
Counties Clearwater County, ID, Idaho County, ID
The radar
The Missoula radar (KMSX), 148 km from the middle of the area, began a volume at 09:16 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
Spokane, WA (KOTX), launched 00:00Z, 9.3 hours before the alert went out and 172 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
- 1020 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 474 m²/s²
- 0-3 km storm-relative helicity
- 426 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
624 WWUS75 KMSO 150915 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 215 AM MST Mon Nov 15 2021 MTZ001-003-004-160900- /O.UPG.KMSO.HW.A.0005.211115T2200Z-211116T0600Z/ /O.NEW.KMSO.HW.W.0005.211115T2200Z-211116T0900Z/ Kootenai/Cabinet Region-Flathead/Mission Valleys- Lower Clark Fork Region- 215 AM MST Mon Nov 15 2021 ...HIGH WIND WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 2 AM MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 55 mph expected. * WHERE...Kootenai/Cabinet Region, Flathead/Mission Valleys and Lower Clark Fork Region. * WHEN...From 3 PM this afternoon to 2 AM MST Tuesday. * 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. && $$ MTZ002-160915- /O.UPG.KMSO.HW.A.0005.211115T2200Z-211116T0600Z/ /O.NEW.KMSO.HW.W.0005.211115T2200Z-211116T1500Z/ West Glacier Region- 215 AM MST Mon Nov 15 2021 ...HIGH WIND WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 8 AM MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. Wind gusts to 70 mph possible along the Continental Divide. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...From 3 PM this afternoon to 8 AM MST Tuesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ MTZ006-007-043-160915- /O.UPG.KMSO.HW.A.0005.211116T0200Z-211116T1200Z/ /O.NEW.KMSO.HW.W.0005.211116T0200Z-211116T1500Z/ Bitterroot/Sapphire Mountains-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 215 AM MST Mon Nov 15 2021 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 8 AM MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Bitterroot/Sapphire Mountains, Butte/Blackfoot Region and Potomac/Seeley Lake Region. * WHEN...From 7 PM this evening to 8 AM MST Tuesday. * 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. && $$ MTZ005-160915- /O.UPG.KMSO.HW.A.0005.211116T0200Z-211116T1200Z/ /O.NEW.KMSO.HW.W.0005.211116T0200Z-211116T1500Z/ Missoula/Bitterroot Valleys- 215 AM MST Mon Nov 15 2021 ...HIGH WIND WARNING IN EFFECT FROM 7 PM THIS EVENING TO 8 AM MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Missoula/Bitterroot Valleys. The strongest winds are expected on the west side of Highway 93 from Lolo through Darby, especially near the openings of east-west aligned drainages coming out of the Bitterroot Mountains. * WHEN...From 7 PM this evening to 8 AM MST Tuesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ IDZ005-006-160800- /O.NEW.KMSO.WI.Y.0012.211116T0000Z-211116T0800Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 115 AM PST Mon Nov 15 2021 ...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO MIDNIGHT PST TONIGHT... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, Dixie, Elk City, and Highway 12 Lowell to Lolo Pass. * WHEN...From 4 PM this afternoon to midnight PST tonight. * 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. && $$
1 follow-up statement
141 WWUS75 KMSO 160741 NPWMSO URGENT - WEATHER MESSAGE National Weather Service Missoula MT 1241 AM MST Tue Nov 16 2021 IDZ005-006-160845- /O.EXP.KMSO.WI.Y.0012.000000T0000Z-211116T0800Z/ Northern Clearwater Mountains-Southern Clearwater Mountains- 1141 PM PST Mon Nov 15 2021 ...WIND ADVISORY WILL EXPIRE AT MIDNIGHT PST TONIGHT... Gusty winds will continue early Tuesday morning but with diminishing wind speeds compared to this past evening. $$ MTZ001-003-004-160900- /O.CON.KMSO.HW.W.0005.000000T0000Z-211116T0900Z/ Kootenai/Cabinet Region-Flathead/Mission Valleys- Lower Clark Fork Region- 1241 AM MST Tue Nov 16 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM MST EARLY THIS MORNING... * WHAT...Southwest winds 25 to 35 mph with gusts up to 50 mph. * WHERE...Lower Clark Fork Region, Flathead/Mission Valleys and Kootenai/Cabinet Region. * WHEN...Until 2 AM MST early 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. && $$ MTZ002-161500- /O.CON.KMSO.HW.W.0005.000000T0000Z-211116T1500Z/ West Glacier Region- 1241 AM MST Tue Nov 16 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 55 mph. * WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan Lake, Marias Pass, and Polebridge. * WHEN...Until 8 AM MST this morning. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ MTZ006-007-043-161500- /O.CON.KMSO.HW.W.0005.000000T0000Z-211116T1500Z/ Bitterroot/Sapphire Mountains-Butte/Blackfoot Region- Potomac/Seeley Lake Region- 1241 AM MST Tue Nov 16 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * WHAT...West winds 30 to 40 mph with gusts up to 50 mph. * WHERE...Butte/Blackfoot Region, Bitterroot/Sapphire Mountains and Potomac/Seeley Lake Region. * WHEN...Until 8 AM MST 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. && $$ MTZ005-161500- /O.CON.KMSO.HW.W.0005.000000T0000Z-211116T1500Z/ Missoula/Bitterroot Valleys- 1241 AM MST Tue Nov 16 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS MORNING... * WHAT...Southwest winds 15 to 25 mph with gusts up to 50 mph. * WHERE...Missoula/Bitterroot Valleys. * WHEN...Until 8 AM MST this morning. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$
Nearby
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.