Alert archive / Montana / Wind Advisories in 2021
Wind Advisory 19, NWS Billings, MT
NWS Billings, MT issued this wind advisory at Dec 20, 2021, 2:30 AM MST for Park County, Stillwater County, Sweet Grass County, Montana. It took effect at Dec 20, 2021, 3:15 PM MST. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2021, 2:30 AM MST (09:30 UTC)
- In effect from
- Dec 20, 2021, 3:15 PM MST
- Expired
- Dec 24, 2021, 2:50 AM MST
- In force
- 3 days
- 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 09:36 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, 9.5 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
- 684 m above ground
- 0-6 km bulk shear
- 95 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 302 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
213 WWUS75 KBYZ 200930 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 230 AM MST Mon Dec 20 2021 MTZ065-066-210930- /O.NEW.KBYZ.WI.Y.0019.211221T0100Z-211222T1900Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 230 AM MST Mon Dec 20 2021 ...WIND ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO NOON MST WEDNESDAY... * WHAT...Southwest winds with gusts up to 65 mph expected. Blowing snow may produce near whiteout conditions at times. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...From 6 PM this evening to noon MST Wednesday. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution...particularly along portions of Interstate 90 from Springdale to Livingston. Very strong cross winds are expected in these areas. Blowing snow may drop visibility below a mile at times, and cause slick road conditions. * ADDITIONAL DETAILS...The strongest winds are expected tonight, and then again on Tuesday night. During the day Tuesday wind gusts will diminish to 40 to 50 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
10 follow-up statements
246 WWUS75 KBYZ 202147 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 247 PM MST Mon Dec 20 2021 MTZ065-066-212200- /O.CON.KBYZ.WI.Y.0019.211221T0100Z-211222T1900Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 247 PM MST Mon Dec 20 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO NOON MST WEDNESDAY... * WHAT...Southwest winds with gusts up to 65 mph expected. Blowing snow may produce near whiteout conditions at times this evening. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...From 6 PM this evening to noon MST Wednesday. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution... particularly along portions of Interstate 90 from Springdale to Livingston. Very strong cross winds are expected in these areas. Blowing snow may drop visibility below a mile at times, and cause slick road conditions. * ADDITIONAL DETAILS...The strongest winds are expected tonight, and then again on Tuesday night. During the day Tuesday wind gusts will diminish to 40 to 50 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
204 WWUS75 KBYZ 202215 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 315 PM MST Mon Dec 20 2021 MTZ065-066-212215- /O.EXT.KBYZ.WI.Y.0019.211220T2215Z-211222T1900Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 315 PM MST Mon Dec 20 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL NOON MST WEDNESDAY... * WHAT...Southwest winds with gusts up to 65 mph expected. Blowing snow will produce near whiteout conditions at times this evening. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until noon MST Wednesday. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution... particularly along portions of Interstate 90 from Springdale to Livingston. Very strong cross winds are expected in these areas. Blowing snow will drop visibility below a mile at times, and cause slick road conditions. * ADDITIONAL DETAILS...The strongest winds are expected tonight, and then again on Tuesday night. During the day Tuesday wind gusts will diminish to 40 to 50 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
745 WWUS75 KBYZ 210322 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 822 PM MST Mon Dec 20 2021 MTZ065-066-220330- /O.CON.KBYZ.WI.Y.0019.000000T0000Z-211222T1900Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 822 PM MST Mon Dec 20 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON MST WEDNESDAY... * WHAT...Southwest wind gusts to 65 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until noon MST Wednesday. * IMPACTS...Winds this strong will make travel difficult. Drivers of high profile vehicles should use extra caution, particularly along portions of Interstate 90 from Springdale to Livingston. Very strong cross winds are expected in these areas. Blowing snow will drop visibility at times, and cause slick road conditions. * ADDITIONAL DETAILS...The strongest winds are expected tonight, and then again on Tuesday night. During the day Tuesday wind gusts will diminish to 40 to 50 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
026 WWUS75 KBYZ 210928 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 228 AM MST Tue Dec 21 2021 MTZ065-066-220930- /O.CON.KBYZ.WI.Y.0019.000000T0000Z-211222T1900Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 228 AM MST Tue Dec 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON MST WEDNESDAY... * WHAT...Southwest winds gusting to around 65 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until noon MST Wednesday. Strongest winds expected Tuesday night into Wednesday morning. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution...particularly along portions of Interstate 90 from Springdale to Livingston. Sudden dangerous cross winds are expected in these areas. * ADDITIONAL DETAILS...localized blowing and drifting snow is possible. If reduced visibility is encountered, slow down and be alert for slick road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
555 WWUS75 KBYZ 211628 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 928 AM MST Tue Dec 21 2021 MTZ065-066-221630- /O.EXT.KBYZ.WI.Y.0019.000000T0000Z-211224T1300Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 928 AM MST Tue Dec 21 2021 ...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM MST FRIDAY... * WHAT...Southwest winds gusting to around 65 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until 6 AM MST Friday. Strongest winds expected tonight into Wednesday morning, and Wednesday night into Thursday. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution, particularly along portions of Interstate 90 from Springdale to Livingston. Sudden dangerous cross winds are expected in these areas. * ADDITIONAL DETAILS...Localized blowing and drifting snow is possible today. If reduced visibility is encountered, slow down and be alert for slick road conditions. The risk of blowing snow will diminish as snow melts. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
098 WWUS75 KBYZ 220420 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 920 PM MST Tue Dec 21 2021 MTZ065-066-230430- /O.CON.KBYZ.WI.Y.0019.000000T0000Z-211224T1300Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 920 PM MST Tue Dec 21 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST FRIDAY... * WHAT...Southwest winds gusting to around 65 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until 6 AM MST Friday. Strongest winds expected tonight into Wednesday morning, and Wednesday night into Thursday. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution, particularly along portions of Interstate 90 from Springdale to Livingston. Sudden dangerous cross winds are expected in these areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
605 WWUS75 KBYZ 222100 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 200 PM MST Wed Dec 22 2021 MTZ065-066-232100- /O.CON.KBYZ.WI.Y.0019.000000T0000Z-211224T1300Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 200 PM MST Wed Dec 22 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST FRIDAY... * WHAT...Southwest winds gusting to around 65 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until 6 AM MST Friday. Strongest winds expected tonight into Thursday morning. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution, particularly along portions of Interstate 90 from Springdale to Livingston. Sudden dangerous cross winds are expected in these areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
733 WWUS75 KBYZ 231024 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 324 AM MST Thu Dec 23 2021 MTZ065-066-241030- /O.CON.KBYZ.WI.Y.0019.000000T0000Z-211224T1300Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 324 AM MST Thu Dec 23 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST FRIDAY... * WHAT...Southwest winds gusting to around 60 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until 6 AM MST Friday. Strongest wind gusts expected around sunrise this morning, and then this evening just ahead of a cold front. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution, particularly along portions of Interstate 90 from Springdale to Livingston. Sudden dangerous cross winds are expected in these areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
033 WWUS75 KBYZ 232156 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 256 PM MST Thu Dec 23 2021 MTZ065-066-241300- /O.CON.KBYZ.WI.Y.0019.000000T0000Z-211224T1300Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 256 PM MST Thu Dec 23 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM MST FRIDAY... * WHAT...Southwest winds gusting to around 60 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until 6 AM MST Friday. Strongest wind gusts expected this evening just ahead of a cold front. * IMPACTS...Winds this strong can make travel difficult. Drivers of high profile vehicles should use extra caution, particularly along portions of Interstate 90 from Springdale to Livingston. Sudden dangerous cross winds are expected in these areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
594 WWUS75 KBYZ 240950 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 250 AM MST Fri Dec 24 2021 MTZ065-066-241100- /O.CAN.KBYZ.WI.Y.0019.000000T0000Z-211224T1300Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 250 AM MST Fri Dec 24 2021 ...WIND ADVISORY IS CANCELLED... The strongest winds have ended. Therefore, the High Wind Warning has been cancelled. $$
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 2:44 PM MST | Winter Weather Advisory | BYZ | Golden Valley, Sweet Grass, Wheatland | 12 hr |
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.