Alert archive / Montana / Wind Advisories in 2021
Wind Advisory 8, NWS Billings, MT
NWS Billings, MT issued this wind advisory at Oct 29, 2021, 2:50 AM MDT for Park County, Stillwater County, Sweet Grass County, Montana. It was in force for 19 hr.
The area
The counties it named.
The facts
- Issued
- Oct 29, 2021, 2:50 AM MDT (08:50 UTC)
- Expired
- Oct 29, 2021, 9:34 PM MDT
- In force
- 19 hr
- Issued by
- NWS Billings, MT
Counties Park County, MT, Stillwater County, MT, Sweet Grass County, MT
The radar
The Billings radar (KBLX), 107 km from the middle of the area, began a volume at 08:52 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
Great_falls, MT (KTFX), launched 00:00Z, 8.8 hours before the alert went out and 206 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
- 1467 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
984 WWUS75 KBYZ 290850 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 250 AM MDT Fri Oct 29 2021 MTZ065-066-300500- /O.NEW.KBYZ.WI.Y.0008.211029T0850Z-211030T0500Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 250 AM MDT Fri Oct 29 2021 ...WIND ADVISORY IN EFFECT UNTIL 11 PM MDT THIS EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph occurring. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Until 11 PM MDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong crosswinds will make travel difficult along Interstate 90 from Livingston to Big Timber and roads along the Beartooth Foothills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Setzenfand
3 follow-up statements
696 WWUS75 KBYZ 291019 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 419 AM MDT Fri Oct 29 2021 MTZ065-066-300500- /O.CON.KBYZ.WI.Y.0008.000000T0000Z-211030T0500Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 419 AM MDT Fri Oct 29 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM MDT THIS EVENING... * WHAT...Southwest winds 30 to 45 mph with gusts up to 60 mph occurring. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Until 11 PM MDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Strong crosswinds will make travel difficult along Interstate 90 from Livingston to Big Timber and roads along the Beartooth Foothills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Setzenfand
568 WWUS75 KBYZ 291910 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 110 PM MDT Fri Oct 29 2021 MTZ065-066-300500- /O.CON.KBYZ.WI.Y.0008.000000T0000Z-211030T0500Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 110 PM MDT Fri Oct 29 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 11 PM MDT THIS EVENING... * WHAT...Southwest winds gusting up to 60 mph. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Until 11 PM MDT this evening. * IMPACTS...Strong crosswinds will make travel difficult along Interstate 90 near Livingston, and roads along the Beartooth Foothills. Gusty winds may blow around unsecured objects. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Lester
284 WWUS75 KBYZ 300334 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 934 PM MDT Fri Oct 29 2021 MTZ065-066-300445- /O.CAN.KBYZ.WI.Y.0008.000000T0000Z-211030T0500Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 934 PM MDT Fri Oct 29 2021 ...WIND ADVISORY IS CANCELLED... Winds have diminished in the area. However, gusts up to 45 mph are still likely over the next hour, then winds winds will become relatively light by 11 PM. $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Vertz
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.