Alert archive / Montana / Wind Advisories in 2021
Wind Advisory 4, NWS Billings, MT
NWS Billings, MT issued this wind advisory at Feb 18, 2021, 1:24 AM MST for Park County, Stillwater County, Sweet Grass County, Montana. It took effect at Feb 18, 2021, 5:00 PM MST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Feb 18, 2021, 1:24 AM MST (08:24 UTC)
- In effect from
- Feb 18, 2021, 5:00 PM MST
- Expired
- Feb 19, 2021, 11:08 AM MST
- In force
- 18 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 08:30 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, 8.4 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
- 678 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 89 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
458 WWUS75 KBYZ 180824 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 124 AM MST Thu Feb 18 2021 MTZ065-066-190830- /O.NEW.KBYZ.WI.Y.0004.210219T0000Z-210220T0000Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 124 AM MST Thu Feb 18 2021 ...WIND ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST FRIDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...From 5 PM this afternoon to 5 PM MST Friday. * IMPACTS...Dangerous cross winds are expected along Interstate 90. Areas of blowing snow could change 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 $$
4 follow-up statements
099 WWUS75 KBYZ 182038 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 138 PM MST Thu Feb 18 2021 MTZ065-066-192045- /O.CON.KBYZ.WI.Y.0004.210219T0000Z-210220T0000Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 138 PM MST Thu Feb 18 2021 ...WIND ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST FRIDAY... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...From 5 PM this afternoon to 5 PM MST Friday. * IMPACTS...Dangerous cross winds are expected along Interstate 90. Areas of blowing snow could change road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
657 WWUS75 KBYZ 191007 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 307 AM MST Fri Feb 19 2021 MTZ065-066-200000- /O.CON.KBYZ.WI.Y.0004.000000T0000Z-210220T0000Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 307 AM MST Fri Feb 19 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until 5 PM MST today. * IMPACTS...Dangerous cross winds are expected along Interstate 90. Blowing snow will reduce visibility to a mile or less at times and will make travel hazardous with roads becoming slick. 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 $$
977 WWUS75 KBYZ 191149 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 449 AM MST Fri Feb 19 2021 MTZ065-066-200000- /O.CON.KBYZ.WI.Y.0004.000000T0000Z-210220T0000Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 449 AM MST Fri Feb 19 2021 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * WHAT...Southwest winds gusting to 65 mph and significant blowing snow. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...Until 5 PM MST today. * IMPACTS...Dangerous cross winds are expected along Interstate 90. * ADDITIONAL IMPACTS...Significant blowing snow will reduce visibility below one mile at times and make travel hazardous with roads becoming slick. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use extra caution when driving, especially if operating a high profile vehicle. Secure outdoor objects. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
129 WWUS75 KBYZ 191808 NPWBYZ URGENT - WEATHER MESSAGE National Weather Service Billings MT 1108 AM MST Fri Feb 19 2021 MTZ065-066-201815- /O.CAN.KBYZ.WI.Y.0004.000000T0000Z-210220T0000Z/ /O.NEW.KBYZ.HW.A.0003.210221T0700Z-210223T1200Z/ Livingston Area-Beartooth Foothills- Including the cities of Livingston, Fishtail, and McLeod 1108 AM MST Fri Feb 19 2021 ...HIGH WIND WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE MONDAY NIGHT... ...WIND ADVISORY IS CANCELLED... * WHAT...Southwest wind gusts of 65 to 75 mph possible. * WHERE...Livingston Area and Beartooth Foothills. * WHEN...From late Saturday night through late Monday night. * IMPACTS...Travel could be very difficult, especially for high profile vehicles. Localized blowing snow and reduced visibility are also possible. * ADDITIONAL DETAILS...Today's wind advisory has been cancelled due to decreasing winds and a reduced risk of blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$ MTZ063-141-172-228-201815- /O.NEW.KBYZ.HW.A.0003.210221T0700Z-210223T1200Z/ Judith Gap-Northern Sweet Grass-Melville Foothills- Southern Wheatland- Including the cities of Judith Gap, Big Timber, Melville, and Harlowton 1108 AM MST Fri Feb 19 2021 ...HIGH WIND WATCH IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE MONDAY NIGHT... * WHAT...Southwest to west wind gusts of 65 to 75 mph possible. * WHERE...Judith Gap, Northern Sweet Grass, Melville Foothills and Southern Wheatland. * WHEN...From late Saturday night through late Monday night. * IMPACTS...Travel could be very difficult, especially for high profile vehicles. Localized blowing snow and reduced visibility are also possible. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. Additional graphics for this hazard can be found at http://www.weather.gov/billings $$
The office that day
Everything else NWS Billings, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 6:30 AM MST | Special Weather Statement | BYZ | Big Horn, Musselshell, Rosebud, Treasure, Yellowstone | 75 min |
| Feb 18, 6:32 AM MST | Special Weather Statement | BYZ | Big Horn, Musselshell, Rosebud, Treasure, Yellowstone | 73 min |
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.