Montana Department of Transportation

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Accidents and Incidents Report

Special Weather Statement

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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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WWUS85 KTFX 141629

SPSTFX



Special Weather Statement

National Weather Service Great Falls MT

929 AM MST Mon Jan 14 2019



MTZ008-014-015-052-055-141730-

Beaverhead-Central and Southern Lewis and Clark-Madison-Jefferson-

Gallatin-

Including the cities of Big Hole Pass, Wisdom, Dillon, 

Chief Joseph Pass, Monida Pass, Wise River, Helena, Flesher Pass, 

Lincoln, MacDonald Pass, Rogers Pass, Ennis, Norris Hill, 

Raynolds Pass, Twin Bridges, Virginia City, Montana City, 

Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 

Bozeman, West Yellowstone, Battle Ridge Pass, Bozeman Pass, 

and Targhee Pass

929 AM MST Mon Jan 14 2019



...Reduced Visibilities from Fog this Morning...



Fog has developed or was developing over portions of Southwest

Montana this morning, most notably in the Big Hole, Centennial,

Hebgen, Boulder, and Helena Valleys. Locations that will likely

see reduced visibilities from fog include but are not limited to 

the following : Wisdom, West Yellowstone, Elk Park Pass, and East 

Helena. Visibilities as low as a half of a mile are possible in 

these areas, however, lower visibilities are possible in the 

densest fog. The combination of fog and temperatures well below 

freezing may also lead to slick spots, especially on elevated 

surfaces like bridges and decks. Motorist are encouraged to allow 

extra time to reach their destinations this morning, use low beam 

headlights when encountering fog, and allow extra following 

distance between vehicles.



The fog is expected to dissipate generally between 10am and 12pm 

Mountain Daylight Time.



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