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 171641
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
941 AM MST Fri Nov 17 2017

MTZ067-180000-
/O.CON.KBYZ.WS.W.0014.000000T0000Z-171118T0000Z/
Absaroka/Beartooth Mountains-
Including the locations of  Cooke City
941 AM MST Fri Nov 17 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...The heaviest snow has stopped but additional snow showers
  will bring new accumulations of 1 to 3 inches.

* WHERE...Absaroka/Beartooth Mountains.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times, increased avalanche danger, and dangerous
  backcountry conditions. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. 

For the latest road conditions, call 5 1 1.

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

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WWUS45 KMSO 162132
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
232 PM MST Thu Nov 16 2017

MTZ002-172200-
/O.CAN.KMSO.WW.Y.0039.000000T0000Z-171116T2200Z/
/O.NEW.KMSO.WW.Y.0040.171117T0600Z-171117T2200Z/
West Glacier Region-
232 PM MST Thu Nov 16 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
3 PM MST FRIDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 4 inches, with localized amounts up
  to 6 inches over Marias Pass, are expected.

* WHERE...Bad Rock Canyon, Essex, Highway 83 Bigfork to Swan 
  Lake, Marias Pass, and Polebridge.

* WHEN...From 11 PM this evening to 3 PM MST Friday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

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MTZ004-006-171800-
/O.NEW.KMSO.WW.Y.0040.171117T0600Z-171117T1800Z/
Lower Clark Fork Region-Bitterroot/Sapphire Mountains-
232 PM MST Thu Nov 16 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
11 AM MST FRIDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations in valleys of 1 to 3 inches, with 3 to 6
  inches over Lolo, Lost Trail and Lookout Passes.

* WHERE...Evaro Hill, Highway 200 Thompson Falls to Plains, 
  Highway 200 Trout Creek to Heron, I-90 Lookout Pass to Haugan, 
  Highway 93 Sula to Lost Trail Pass, and Lolo Pass.

* WHEN...From 11 PM this evening to 11 AM MST Friday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

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MTZ005-171800-
/O.NEW.KMSO.WW.Y.0040.171117T0600Z-171117T1800Z/
Missoula/Bitterroot Valleys-
232 PM MST Thu Nov 16 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
11 AM MST FRIDAY...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 1 to 3 inches are expected, primarily
  through the Bitterroot Valley.

* WHERE...Missoula/Bitterroot Valleys.

* WHEN...From 11 PM this evening to 11 AM MST Friday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

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IDZ005-006-171800-
/O.NEW.KMSO.WW.Y.0040.171117T0600Z-171117T1800Z/
Northern Clearwater Mountains-Southern Clearwater Mountains-
132 PM PST Thu Nov 16 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO
10 AM PST FRIDAY ABOVE 2500 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 2 to 4 inches, with localized amounts up
  to 6 inches over Lolo Pass, are expected.

* WHERE...Elk River, Highway 11 Pierce to Headquarters, Pierce, 
  Dixie, Elk City, and Highway 12 Lowell to Lolo Pass.

* WHEN...From 10 PM this evening to 10 AM PST Friday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

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WWUS45 KTFX 171632
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
932 AM MST Fri Nov 17 2017

MTZ008-015-055-171745-
/O.CAN.KTFX.WW.Y.0044.000000T0000Z-171118T0000Z/
Beaverhead-Madison-Gallatin-
932 AM MST Fri Nov 17 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

Scattered snow showers remain likely today across Southwest
Montana, but little to now new snow accumulation is expected at or
below mountain passes.

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MTZ009-172200-
/O.CON.KTFX.WW.Y.0044.000000T0000Z-171117T2200Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass and Marias Pass
932 AM MST Fri Nov 17 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 PM MST THIS
AFTERNOON ABOVE 4500 FEET...

* WHAT...Snow and blowing snow occurring. Plan on slippery road
  conditions over Marias Pass. 

* WHERE...Northern Rocky Mountain Front.

* WHEN...Until 3 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 45 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

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http://www.weather.gov/greatfalls


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