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 122103
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
303 PM MDT Sat May 12 2018

MTZ067-068-122215-
/O.CAN.KBYZ.WS.W.0014.000000T0000Z-180513T1200Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
303 PM MDT Sat May 12 2018

...WINTER STORM WARNING IS CANCELLED...

Periods of light snow possible through the night but significant 
additional accumulations are not expected. 

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WYZ098-122215-
/O.CAN.KBYZ.WW.Y.0029.000000T0000Z-180513T0000Z/
Northeast Bighorn Mountains-
303 PM MDT Sat May 12 2018

...WINTER WEATHER ADVISORY IS CANCELLED...

Significant snowfall has already ended. 

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WWUS45 KMSO 121435
WSWMSO

URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
835 AM MDT Sat May 12 2018

IDZ010-121545-
/O.EXP.KMSO.WW.Y.0049.000000T0000Z-180512T1500Z/
Eastern Lemhi County-
835 AM MDT Sat May 12 2018

...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING
ABOVE 6500 FEET...

Although snow showers will continue this morning above 6500 feet,
roads are anticipated to remain generally wet due to warming
temperatures. 

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WWUS45 KTFX 121454
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
854 AM MDT Sat May 12 2018

MTZ008-015-055-121600-
/O.EXP.KTFX.WW.Y.0103.000000T0000Z-180512T1500Z/
Beaverhead-Madison-Gallatin-
Including the following locations Big Hole Pass, 
Chief Joseph Pass, and Targhee Pass
854 AM MDT Sat May 12 2018

...WINTER WEATHER ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING
ABOVE 7000 FEET...

Snow levels will remain around 7000 feet through this afternoon
with rain showers at lower elevations and snow showers over the
higher mountains. Little or no snow accumulation is expected at
mountain pass levels with up to 2 inches at higher elevations.
While wet and cool conditions can be expected for those venturing
into the higher elevations, little or no impact from accumulating
snow is expected and therefore the winter weather advisory will 
be allowed to expire. 


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http://www.weather.gov/greatfalls


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