Alert archive / Montana / Wind Advisories in 2021
Wind Advisory 11, NWS Billings, MT
NWS Billings, MT issued this wind advisory at Nov 20, 2021, 11:50 AM MST for Park County, Stillwater County, Sweet Grass County, Montana. It took effect at Nov 21, 2021, 6:00 PM MST. It was in force for 31 hr.
The area
The counties it named.
The facts
- Issued
- Nov 20, 2021, 11:50 AM MST (18:50 UTC)
- In effect from
- Nov 21, 2021, 6:00 PM MST
- Expired
- Nov 23, 2021, 12:36 AM MST
- In force
- 31 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 18:52 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 12:00Z, 6.8 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
- 1134 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
829 WWUS75 KBYZ 201850 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 1150 AM MST Sat Nov 20 2021 MTZ065-066-211900- /O.NEW.KBYZ.WI.Y.0011.211122T0100Z-211123T1900Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 1150 AM MST Sat Nov 20 2021 ...WIND ADVISORY IN EFFECT FROM 6 PM SUNDAY TO NOON MST TUESDAY... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...From 6 PM Sunday to Noon MST Tuesday. * IMPACTS...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. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings TWH
6 follow-up statements
260 WWUS75 KBYZ 210909 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 209 AM MST Sun Nov 21 2021 MTZ065-066-220915- /O.CON.KBYZ.WI.Y.0011.211122T0100Z-211123T1900Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 209 AM MST Sun Nov 21 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST TUESDAY... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...From 6 PM this evening to Noon MST Tuesday. * IMPACTS...Strong crosswinds will make travel difficult along Interstate 90 from Livingston to Big Timber, Highway 191 from Big Timber to Harlowton, and roads along the Beartooth Foothills. * ADDITIONAL DETAILS...Warm and dry conditions on Monday could cause rapid fire spread. Use caution with any burning activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Borsum
772 WWUS75 KBYZ 211957 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 1257 PM MST Sun Nov 21 2021 MTZ065-066-222000- /O.CON.KBYZ.WI.Y.0011.211122T0100Z-211123T1900Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 1257 PM MST Sun Nov 21 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST TUESDAY... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...From 6 PM this evening to Noon MST Tuesday. * IMPACTS...Strong crosswinds will make travel difficult along Interstate 90 from Livingston to Big Timber and roads along the Beartooth Foothills. * ADDITIONAL DETAILS...Warm and dry conditions on Monday could cause rapid fire spread. Use caution with any burning activities. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings TWH
093 WWUS75 KBYZ 220957 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 257 AM MST Mon Nov 22 2021 MTZ065-066-231000- /O.CON.KBYZ.WI.Y.0011.000000T0000Z-211123T1900Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 257 AM MST Mon Nov 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON MST TUESDAY... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph occurring. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Until Noon MST Tuesday. * IMPACTS...Strong crosswinds will make travel difficult along Interstate 90 from Livingston to Big Timber, Highway 191 from Big Timber to Harlowton, and roads along the Beartooth Foothills. * ADDITIONAL DETAILS...Very dry conditions mean that any fire that develops could spread rapidly in grass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Borsum
944 WWUS75 KBYZ 221616 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 916 AM MST Mon Nov 22 2021 MTZ065-066-231630- /O.CON.KBYZ.WI.Y.0011.000000T0000Z-211123T1900Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 916 AM MST Mon Nov 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Wind speeds will weaken this afternoon before picking up again this evening. Winds will remain strong tonight through Tuesday morning. * IMPACTS...Strong crosswinds will make travel difficult along Interstate 90 from Livingston to Big Timber, Highway 191 from Big Timber to Harlowton, and roads along the Beartooth Foothills. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Chambers
617 WWUS75 KBYZ 222010 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 110 PM MST Mon Nov 22 2021 MTZ065-066-231900- /O.CON.KBYZ.WI.Y.0011.000000T0000Z-211123T1900Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 110 PM MST Mon Nov 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON MST TUESDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph. * WHERE...Beartooth Foothills and Livingston Area. * WHEN...Until Noon MST Tuesday. * IMPACTS...Strong crosswinds will make travel difficult along Interstate 90 from Livingston to Big Timber and roads along the Beartooth Foothills. The strongest wind gusts are expected overnight tonight through sunrise Tuesday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Chambers
768 WWUS75 KBYZ 230736 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 1236 AM MST Tue Nov 23 2021 MTZ065-066-230845- /O.CAN.KBYZ.WI.Y.0011.000000T0000Z-211123T1900Z/ Livingston Area-Beartooth Foothills- Including the locations of Livingston 1236 AM MST Tue Nov 23 2021 ...WIND ADVISORY IS CANCELLED... Winds have decreased overnight but gusts to 45 mph are still possible. $$ Additional graphics for this hazard can be found at http://www.weather.gov/billings Borsum
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.