Montana Department of Transportation

Malcolm “Mack” Long, Director


View the Governor’s Coronavirus Task Force site for more information.

Main Content

Accidents and Incidents Report

Special Weather Statement

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.

WWUS85 KMSO 191934


Special Weather Statement

National Weather Service Missoula MT

134 PM MDT Sun Sep 19 2021


Eastern Lemhi County-West Glacier Region-

Bitterroot/Sapphire Mountains-Butte/Blackfoot Region-

Potomac/Seeley Lake Region-

Including the cities of Salmon, Leadore, Swan Lake, Sula, 

Anaconda, Deer Lodge, Drummond, East Missoula, Seeley Lake, 

and Clinton

134 PM MDT Sun Sep 19 2021

...High elevation snow likely across Northwest Montana, the

Continental Divide, Southwest Montana and East Central Idaho...

A Pacific low pressure system will bring showers across the 

Northern Rockies today through Monday morning. Snow levels will be

between 6500 and 7500 feet this afternoon and lowering to 5500 to 

6500 feet by early Monday morning. Snow accumulations up to 2 

inches are possible associated with stronger showers. Little to no snow

impacts are expected over mountain passes given subsurface 

temperatures are well above freezing. 

For those recreating in the backcountry at higher elevations 

across the region, be prepared for cold temperatures with areas of

and wet snowfall. 



WWUS85 KTFX 190504


Special Weather Statement

National Weather Service Great Falls MT

1104 PM MDT Sat Sep 18 2021



Broadwater MT-Jefferson MT-Central and Southern Lewis and Clark MT-

1104 PM MDT Sat Sep 18 2021

...Strong winds will impact portions of southeastern Lewis and 

Clark, northwestern Broadwater and northeastern Jefferson Counties 

through 1130 PM MDT...

At 1050 PM MDT, trained weather spotters reported a strong 

winds near Helena, moving northeast at 30 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Trained weather spotters.

IMPACT...Gusty winds could knock down tree limbs and blow around 

         unsecured objects.

An area of strong winds and light rain will affect locations along 

the Interstate 15 corridor from Boulder to Wolf Creek. Expect some 

wind gusts of 50 to 55 mph ahead of the precipitation.


If outdoors, consider seeking shelter inside a building. 


LAT...LON 4613 11212 4684 11231 4697 11187 4637 11129

TIME...MOT...LOC 0501Z 238DEG 25KT 4660 11210