Montana Department of Transportation

Main Content

Accidents and Incidents Report

Winter Storm Warning/Watch/Advisory

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Note:  Be sure to pay close attention to the date and time of each warning.    
This document contains all warnings in the state so please read the
complete document.
 
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WWUS45 KBYZ 092111

WSWBYZ



URGENT - WINTER WEATHER MESSAGE

National Weather Service Billings MT

311 PM MDT Thu Apr 9 2020



MTZ067-068-171-WYZ198-102115-

/O.CON.KBYZ.WS.A.0006.200411T0000Z-200413T0000Z/

Absaroka/Beartooth Mountains-Crazy Mountains-

Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-

Including the locations of Cooke City, Burgess Jct, and Story

311 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING

THROUGH SUNDAY AFTERNOON...



* WHAT...Heavy snow possible. Total snow accumulations of 10 to 

  20 inches possible.



* WHERE...In Wyoming, Northeast Bighorn Mountains. In Montana, 

  Absaroka/Beartooth Mountains, Crazy Mountains and 

  Pryor/Northern Bighorn Mountains.



* WHEN...From Friday evening through Sunday afternoon.



* IMPACTS...Travel could be very difficult to impossible. Patchy

  blowing snow could significantly reduce visibility.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



A Winter Storm Watch is issued when severe winter weather is

possible but not imminent. At this time there is a potential for

significant snow. Future driving and walking conditions may

become hazardous so it is important to monitor the latest

forecasts.



&&



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MTZ029.031-042-057-063-173-228-235-102115-

/O.CON.KBYZ.WS.A.0006.200411T1200Z-200412T1800Z/

Musselshell-Treasure-Northern Rosebud-Golden Valley-

Northern Big Horn-Judith Gap-Northeastern Yellowstone-

Southern Wheatland-Southwestern Yellowstone-

Including the locations of Roundup, Melstone, Musselshell, 

Hysham, Bighorn, Colstrip, Forsyth, Ingomar, Angela, Ryegate, 

Lavina, Hardin, Crow Agency, Busby, Judith Gap, Pompeys Pillar, 

Custer, Harlowton, Twodot, Shawmut, Billings, Laurel, Huntley, 

and Broadview

311 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING

THROUGH SUNDAY MORNING...



* WHAT...Heavy snow possible. Total snow accumulations of 4 to 6 

  inches possible on grassy areas. Roads becoming slushy 

  Saturday and snowpacked and icy Saturday evening.



* WHERE...Portions of Central, South Central and Southeast 

  Montana.



* WHEN...From Saturday morning through Sunday morning.



* IMPACTS...Travel could be very difficult. Windy conditions 

  along with snow and cold could be harmful to young livestock.



* ADDITIONAL DETAILS...Expect bitter cold with low temperatures 

  of 20 or less Sunday and Monday morning.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



A Winter Storm Watch is issued when severe winter weather is

possible but not imminent. At this time there is a potential for

significant snow. Future driving and walking conditions may

become hazardous so it is important to monitor the latest

forecasts.



&&



--------------------------------



MTZ034-040-064-065-139-141-169-170-172-102115-

/O.CON.KBYZ.WS.A.0006.200411T1200Z-200413T0000Z/

Northern Stillwater-Northern Park-Paradise Valley-Livingston Area-

Southeastern Carbon-Northern Sweet Grass-Bighorn Canyon-

Northern Carbon-Melville Foothills-

Including the locations of Columbus, Absarokee, Park City, 

Rapelje, Clyde Park, Wilsall, Emigrant, Livingston, Springdale, 

Bridger, Belfry, Warren, Big Timber, Joliet, Fromberg, 

and Melville

311 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING

THROUGH SUNDAY AFTERNOON...



* WHAT...Heavy snow possible. Total snow accumulations of 5 to 9 

  inches possible on grassy areas, with slushy roads Saturday 

  morning becoming snow packed and icy Saturday afternoon.



* WHERE...Portions of South Central Montana.



* WHEN...From Saturday morning through Sunday afternoon.



* IMPACTS...Travel could be very difficult. Windy conditions 

  along with snow and cold could be harmful to young livestock.



* ADDITIONAL DETAILS...Expect bitter cold with low temperatures 

  in the teens Sunday and Monday morning.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



A Winter Storm Watch is issued when severe winter weather is

possible but not imminent. At this time there is a potential for

significant snow. Future driving and walking conditions may

become hazardous so it is important to monitor the latest

forecasts.



&&



--------------------------------



MTZ056-058-066-138-WYZ199-102115-

/O.CON.KBYZ.WS.A.0006.200411T1200Z-200413T0000Z/

Red Lodge Foothills-Southern Rosebud-Beartooth Foothills-

Southern Big Horn-Sheridan Foothills-

Including the locations of Red Lodge, Roberts, Roscoe, Lame Deer,

Ashland, Birney, Fishtail, McLeod, Nye, Lodge Grass, Pryor, 

Wyola, Sheridan, Dayton, Ranchester, and Big Horn

311 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM SATURDAY MORNING

THROUGH SUNDAY AFTERNOON...



* WHAT...Heavy snow possible. Total snow accumulations of 7 to 

  13 inches possible. Greatest accumulations Saturday afternoon 

  through Saturday night.



* WHERE...In Wyoming, Sheridan Foothills. In Montana, Red Lodge 

  Foothills, Southern Rosebud, Beartooth Foothills and Southern 

  Big Horn.



* WHEN...From Saturday morning through Sunday afternoon.



* IMPACTS...Travel could be very difficult to impossible due to 

  road conditions and blowing snow reducing visibility.



* ADDITIONAL DETAILS...Expect bitter cold with low temperatures 

  in the teens Sunday and Monday morning. Windy conditions along 

  with snow and cold could be harmful to young livestock.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



A Winter Storm Watch is issued when severe winter weather is

possible but not imminent. At this time there is a potential for

significant snow. Future driving and walking conditions may

become hazardous so it is important to monitor the latest

forecasts.



&&



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WWUS45 KGGW 091932

WSWGGW



URGENT - WINTER WEATHER MESSAGE

National Weather Service Glasgow MT

132 PM MDT Thu Apr 9 2020



MTZ021-060-101200-

/O.CON.KGGW.WS.A.0002.200411T0000Z-200412T0000Z/

Petroleum-Southwest Phillips-

Including the cities of Winnett and Zortman

132 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING

THROUGH SATURDAY AFTERNOON...



* WHAT...Heavy snow possible. Total snow accumulations of 3 to 6 

  inches possible.



* WHERE...Southwest Phillips and Petroleum Counties.



* WHEN...From Friday evening through Saturday afternoon.



* IMPACTS...Plan on slippery road conditions and a low visibility

  in snow.



* ADDITIONAL DETAILS...The snow, wind, and cold will stress

  newborn livestock.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Monitor the latest forecasts for updates on this situation. 



&&



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WWUS45 KMSO 091851

WSWMSO



URGENT - WINTER WEATHER MESSAGE

National Weather Service Missoula MT

1251 PM MDT Thu Apr 9 2020



MTZ002-101900-

/O.CON.KMSO.WS.A.0006.200411T0000Z-200412T0000Z/

West Glacier Region-

1251 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING

THROUGH SATURDAY AFTERNOON...



* WHAT...Heavy snow possible. Total snow accumulations of 4 to 

  10 inches possible. Winds could gust as high as 50 mph.



* WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan 

  Lake, Marias Pass, and Polebridge.



* WHEN...From Friday evening through Saturday afternoon.



* IMPACTS...Travel could be affected. Gusty winds could bring 

  down tree branches.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Monitor the latest forecasts for updates on this situation. 



&&



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MTZ007-043-101900-

/O.CON.KMSO.WS.A.0006.200411T0000Z-200412T0000Z/

Butte/Blackfoot Region-Potomac/Seeley Lake Region-

1251 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING

THROUGH SATURDAY AFTERNOON...



* WHAT...Heavy snow possible. Total snow accumulations of 4 to 7 

  inches possible. Winds could gust as high as 40 mph.



* WHERE...Butte, Georgetown Lake, Highway 12 Garrison to 

  Elliston, Homestake Pass, MacDonald Pass, Highway 200 Bonner 

  to Greenough, Highway 83 Seeley Lake to Condon, and I-90 East 

  Missoula to Bearmouth.



* WHEN...From Friday evening through Saturday afternoon.



* IMPACTS...Travel could be affected.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Monitor the latest forecasts for updates on this situation. 



&&



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WWUS45 KTFX 091947

WSWTFX



URGENT - WINTER WEATHER MESSAGE

National Weather Service Great Falls MT

147 PM MDT Thu Apr 9 2020



MTZ009-046-048-049-101200-

/O.UPG.KTFX.WS.A.0006.200411T0000Z-200412T0000Z/

/O.NEW.KTFX.WS.W.0008.200411T0000Z-200412T0000Z/

Northern Rocky Mountain Front-Eastern Pondera-

Southern Rocky Mountain Front-Eastern Teton-

Including Logan Pass, Browning, Heart Butte, Brady, Conrad, 

Bynum, Choteau, Augusta, Fairfield, and Dutton

147 PM MDT Thu Apr 9 2020



...WINTER STORM WARNING IN EFFECT FROM 6 PM FRIDAY TO 6 PM MDT

SATURDAY...



* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 

  inches over the plains, 8 to 12 inches in the foothills and over

  Marias Pass, and up to 15 inches in the mountains. Winds 

  gusting as high as 40 mph.



* WHERE...Northern Rocky Mountain Front, Eastern Pondera, 

  Southern Rocky Mountain Front and Eastern Teton.



* WHEN...From 6 PM Friday to 6 PM MDT Saturday.



* IMPACTS...Travel could be very difficult. Areas of blowing snow

  could significantly reduce visibility. The combination of wet 

  and raw conditions could severely stress newborn livestock.



* ADDITIONAL DETAILS...Flash freeze conditions are possible on 

  roads as melted snow on roads from recent warm temperatures 

  suddenly turns to ice.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



If you must travel, keep an extra flashlight, food, and water in

your vehicle in case of an emergency. 



To see a graphical representation of the degree of stress on

young livestock, please visit our webpage and select Local

Programs, then Cold Air Advisory for Newborn Livestock.



&&



Moldan



--------------------------------



MTZ012.014-050-051-054-101200-

/O.UPG.KTFX.WS.A.0006.200411T0300Z-200412T0600Z/

/O.NEW.KTFX.WS.W.0008.200411T0300Z-200412T0600Z/

Cascade-Chouteau-Central and Southern Lewis and Clark-

Judith Basin-Fergus-Meagher-

Including Great Falls, Cascade, Belt, Kings Hill Pass, 

Fort Benton, Carter, Big Sandy, Helena, Flesher Pass, 

Rogers Pass, Raynesford, Stanford, Hobson, Lewistown, Winifred, 

Lewistown Divide, Grass Range, Martinsdale, 

and White Sulphur Springs

147 PM MDT Thu Apr 9 2020



...WINTER STORM WARNING IN EFFECT FROM 9 PM FRIDAY TO MIDNIGHT

MDT SATURDAY NIGHT...



* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 

  inches over the plains, 8 to 12 inches in the foothills and over

  mountain passes, and up to 15 inches in the mountains. Winds 

  gusting as high as 35 mph.



* WHERE...Chouteau, Cascade, Judith Basin, Fergus, Central and 

  Southern Lewis and Clark, and Meagher Counties.



* WHEN...From 9 PM Friday to midnight MDT Saturday night.



* IMPACTS...Travel could be very difficult. Patchy blowing snow 

  could significantly reduce visibility. The combination of wet 

  and raw conditions could severely stress newborn livestock.



* ADDITIONAL DETAILS...Flash freeze conditions are possible on 

  roads as melted snow on roads from recent warm temperatures 

  suddenly turns to ice.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



If you must travel, keep an extra flashlight, food, and water in

your vehicle in case of an emergency. 



To see a graphical representation of the degree of stress on

young livestock, please visit our webpage and select Local

Programs, then Cold Air Advisory for Newborn Livestock.



&&



Moldan



--------------------------------



MTZ010-101200-

/O.NEW.KTFX.WS.W.0008.200411T0000Z-200412T0000Z/

Eastern Glacier-

Including Cut Bank

147 PM MDT Thu Apr 9 2020



...WINTER STORM WARNING IN EFFECT FROM 6 PM FRIDAY TO 6 PM MDT

SATURDAY...



* WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 

  inches over the plains. Winds gusting as high as 35 mph.



* WHERE...Eastern Glacier County.



* WHEN...From 6 PM Friday to 6 PM MDT Saturday.



* IMPACTS...Travel could be very difficult. Patchy blowing snow 

  could significantly reduce visibility. The combination of wet 

  and raw conditions could severely stress newborn livestock.



* ADDITIONAL DETAILS...Flash freeze conditions are possible on 

  roads as melted snow on roads from recent warm temperatures 

  suddenly turns to ice.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



If you must travel, keep an extra flashlight, food, and water in

your vehicle in case of an emergency. 



To see a graphical representation of the degree of stress on

young livestock, please visit our webpage and select Local

Programs, then Cold Air Advisory for Newborn Livestock.



&&



Moldan



--------------------------------



MTZ011-044-045-047-101200-

/O.NEW.KTFX.WW.Y.0028.200411T0000Z-200412T0000Z/

Hill-Toole-Liberty-Blaine-

Including Havre, Rocky Boy, Rudyard, Shelby, Sunburst, Chester, 

Whitlash, Chinook, Harlem, and Hays

147 PM MDT Thu Apr 9 2020



...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM FRIDAY TO 6 PM MDT

SATURDAY...



* WHAT...Snow expected. Total snow accumulations of 2 to 4 inches

  over the plains, with 4 to 8 inches in the foothills and

  mountains. Winds gusting as high as 35 mph.



* WHERE...Hill, Toole, Liberty and Blaine Counties.



* WHEN...From 6 PM Friday to 6 PM MDT Saturday.



* IMPACTS...PLan on slippery road conditions. Patchy blowing snow

  could significantly reduce visibility. The combination of wet 

  and raw conditions could severely stress newborn livestock.



* ADDITIONAL DETAILS...Flash freeze conditions are possible on 

  roads as melted snow on roads from recent warm temperatures 

  suddenly turns to ice.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Slow down and use caution while traveling.



To see a graphical representation of the degree of stress on

young livestock, please visit our webpage and select Local

Programs, then Cold Air Advisory for Newborn Livestock.



&&



Moldan



--------------------------------



MTZ015-055-101200-

/O.EXB.KTFX.WS.A.0006.200411T1200Z-200412T0600Z/

Madison-Gallatin-

Including Ennis, Norris Hill, Raynolds Pass, Twin Bridges, 

Virginia City, West Yellowstone, Battle Ridge Pass, Bozeman Pass,

and Targhee Pass

147 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH IN EFFECT FROM SATURDAY MORNING THROUGH

SATURDAY EVENING...



* WHAT...Heavy snow possible. Total snow accumulations of 4 to 8 

  inches possible. Winds could gust as high as 35 mph.



* WHERE...Madison and Gallatin Counties.



* WHEN...From Saturday morning through Saturday evening.



* IMPACTS...Travel could be very difficult. Patchy blowing snow 

  could significantly reduce visibility. The combination of wet 

  and raw conditions could severely stress newborn livestock.



* ADDITIONAL DETAILS...Flash freeze conditions are possible on 

  roads as melted snow on roads from recent warm temperatures 

  suddenly turns to ice.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Monitor the latest forecasts for updates on this situation. 



&&



Moldan



--------------------------------



MTZ053-101200-

/O.EXA.KTFX.WS.A.0006.200411T0300Z-200412T0600Z/

Broadwater-

Including Toston, Townsend, and Winston

147 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH IN EFFECT FROM FRIDAY EVENING THROUGH

SATURDAY EVENING...



* WHAT...Heavy snow possible. Total snow accumulations of 4 to 8

  inches possible. Winds could gust as high as 35 mph.



* WHERE...Broadwater County.



* WHEN...From Friday evening through Saturday evening.



* IMPACTS...Travel could be very difficult. Patchy blowing snow 

  could significantly reduce visibility. The combination of wet 

  and raw conditions could severely stress newborn livestock.



* ADDITIONAL DETAILS...Flash freeze conditions are possible on 

  roads as melted snow on roads from recent warm temperatures 

  suddenly turns to ice.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Monitor the latest forecasts for updates on this situation. 



&&



Moldan



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MTZ052-101200-

/O.CON.KTFX.WS.A.0006.200411T0300Z-200412T0600Z/

Jefferson-

Including Montana City, Boulder, Boulder Hill, Elk Park Pass, 

Homestake Pass, and Whitehall

147 PM MDT Thu Apr 9 2020



...WINTER STORM WATCH REMAINS IN EFFECT FROM FRIDAY EVENING

THROUGH SATURDAY EVENING...



* WHAT...Heavy snow possible. Total snow accumulations of 4 to 8

  inches possible. Winds could gust as high as 35 mph.



* WHERE...Jefferson County.



* WHEN...From Friday evening through Saturday evening.



* IMPACTS...Travel could be very difficult. Patchy blowing snow 

  could significantly reduce visibility. The combination of wet 

  and raw conditions could severely stress newborn livestock.



* ADDITIONAL DETAILS...Flash freeze conditions are possible on 

  roads as melted snow on roads from recent warm temperatures 

  suddenly turns to ice.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Monitor the latest forecasts for updates on this situation. 



&&



Moldan



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http://www.weather.gov/greatfalls



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