Montana Department of Transportation

Main Content

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 KBYZ 121420

SPSBYZ



Special Weather Statement

National Weather Service Billings MT

820 AM MDT FRI OCT 12 2018



MTZ032-121615-

Custer-

820 AM MDT FRI OCT 12 2018



...DENSE FOG WILL AFFECT CENTRAL CUSTER COUNTY THROUGH MID MORNING...



Areas of fog along the Yellowstone River and Tongue River Valleys in 

Custer County should gradually diminish through the morning. Fog 

could be dense with visibility below a quarter mile at times, 

especially in the Miles City area. Temperatures are below freezing 

in the area and some exposed and elevated road surfaces such as 

bridges and overpasses could be slick.  



Locations impacted include...

Miles City, Twelve Mile Dam, Locate, Garland, Moon Creek Ranch,

Matthews Recreation Area, Strawberry Hill Recreation Area, Mizpah and

Knowlton.



LAT...LON 4675 10562 4674 10557 4666 10558 4666 10550

      4660 10549 4660 10545 4657 10544 4657 10524

      4654 10524 4654 10512 4638 10490 4614 10489

      4612 10494 4618 10569 4584 10619 4599 10620

      4636 10609 4680 10562

TIME...MOT...LOC 1418Z 240DEG 48KT 4682 10432 



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Palmquist



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WWUS85 KTFX 122036

SPSTFX



Special Weather Statement

National Weather Service Great Falls MT

236 PM MDT Fri Oct 12 2018



MTZ009-048-130000-

Northern Rocky Mountain Front-Southern Rocky Mountain Front-

Including the cities of Browning, Heart Butte, Dupuyer, 

East Glacier Park, Kiowa, Bynum, Choteau, and Pendroy

236 PM MDT Fri Oct 12 2018



...Strong Cold Front Tonight...



A strong cold front will drop south from Canada early this

evening, bringing much cooler temperatures for the day on 

Saturday and increasing precipitation chances. Rain initially, 

will change over to all snow near the midnight hour tonight as 

temperatures fall. Snowfall accumulations of 1 to 2 inches are 

possible at Marias Pass, with a bulk of the accumulation snow 

occurring between midnight tonight and 6am Saturday. 2 to 4 inches

of snow is possible above 6000 feet, with locally higher amounts 

over the highest peaks in Western Glacier County. 



If you plan on traveling tonight or early tomorrow morning, be 

prepared for winter driving conditions. Slow down and allow extra 

time to reach your destination.



&&



Moldan



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MTZ012-014-050-054-130000-

Cascade-Central and Southern Lewis and Clark-Judith Basin-Meagher-

Including the cities of Great Falls, Helena, Raynesford, Geyser, 

Stanford, Windham, Benchland, Hobson, Moccasin, Martinsdale, 

Checkerboard, Ringling, and White Sulphur Springs

236 PM MDT Fri Oct 12 2018



...Strong Cold Front Tonight...



A strong cold front will drop south from Canada and across the

region late this evening, bringing much cooler temperatures for 

the day on Saturday and increasing precipitation chances. Rain 

initially, will change over to all snow near the midnight hour 

tonight as temperatures fall. Snowfall accumulations of 1 to 3 

inches are possible at Kings Hill, Rogers, and MacDonald Passes, 

with a bulk of the accumulation snow occurring between midnight 

tonight and 6am Saturday. Locally higher snowfall totals 

approaching 5 inches are possible over the highest peaks in the 

Little Belt Mountains and along the Continental Divide. 



If you plan on traveling tonight or early tomorrow morning, be 

prepared for winter driving conditions. Slow down and allow extra 

time to reach your destination.



&&



Moldan



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MTZ008-015-052-053-130000-

Beaverhead-Madison-Jefferson-Broadwater-

Including the cities of Dewey, Wisdom, Wise River, Harrison, 

Pony, Waterloo, Cameron, Ennis, Jeffers, McAllister, 

Montana City, Clancy, Boulder, Corbin, Wickes, Whitehall, Toston, 

Townsend, and Winston

236 PM MDT Fri Oct 12 2018



...Strong Cold Front Tonight...



A strong cold front will drop south from Canada and across the

region early Saturday morning, bringing much cooler temperatures 

for the day on Saturday and increasing precipitation chances. Rain

initially, will quickly change over to all snow as temperatures 

fall. Snowfall accumulations of 1 to 2 inches are possible over 

most mountain passes across Southwest Montana, with a bulk of the 

accumulation snow occurring between midnight tonight and noon 

Saturday.



If you plan on traveling tonight or early tomorrow morning, be 

prepared for winter driving conditions. Slow down and allow extra 

time to reach your destination.



&&



Moldan



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MTZ055-130000-

Gallatin-

Including the cities of Bozeman and Gallatin Gateway

236 PM MDT Fri Oct 12 2018



...Strong Cold Front Tonight...



A strong cold front will drop south from Canada and across the

region early Saturday morning, bringing much cooler temperatures 

for the day on Saturday and increasing precipitation chances. Rain

initially, will quickly change over to all snow as temperatures 

fall. Snowfall accumulations of 2 to 4 inches are possible over 

Bozeman Pass, with a bulk of the accumulation snow occurring 

between midnight tonight and noon Saturday.



If you plan on traveling tonight or early tomorrow morning, be 

prepared for winter driving conditions. Slow down and allow extra 

time to reach your destination.



&&



Moldan



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