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 KMSO 142027
WSWMSO
URGENT - WINTER WEATHER MESSAGE
National Weather Service Missoula MT
127 PM MST Sun Dec 14 2025
MTZ002-162000-
/O.NEW.KMSO.WS.A.0011.251217T0300Z-251218T0600Z/
West Glacier Region-
127 PM MST Sun Dec 14 2025
...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY EVENING...
* WHAT...Heavy snow and damaging winds possible. There is a chance
of major winter weather impacts. Total snow accumulations between
1 and 5 inches in the valleys and 8 to 15 inches possible at high
elevations, including Marias Pass. Winds could gust over 50 mph.
* WHERE...Highway 83 Bigfork to Swan Lake, Bad Rock Canyon, Essex,
Polebridge, Marias Pass, and Glacier National Park.
* WHEN...From Tuesday evening through Wednesday evening.
* IMPACTS...Visibilities may drop below 1/4 mile due to falling and
blowing snow. The strong winds and weight of snow on tree limbs
may down power lines and could cause sporadic power outages. For
MAJOR winter weather impacts, expect considerable disruptions to
normal activities. Dangerous or impossible traveling conditions.
Avoid travel in the impacted areas if possible. Widespread
closures and disruptions to infrastructure may occur. Widespread
blowing snow could significantly reduce visibility. The hazardous
conditions could impact the Wednesday morning and evening
commutes, especially over higher passes. Very strong winds could
cause extensive tree damage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
&&
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JK
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WWUS45 KTFX 142057
WSWTFX
URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
157 PM MST Sun Dec 14 2025
MTZ301-307-151200-
/O.NEW.KTFX.WS.A.0020.251217T0300Z-251218T0600Z/
East Glacier Park Region-Southern Rocky Mountain Front-
Including the following locations: Marias Pass, Logan Pass,
Kiowa, East Glacier Park, Rogers Pass, Babb, and Saint Mary
157 PM MST Sun Dec 14 2025
...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY EVENING...
* WHAT...Heavy snow possible. Total snow accumulations between 8 and
15 inches possible. Winds could gust as high as 85 mph.
* WHERE...The Continental Divide along the Rocky Mountain Front.
* WHEN...From Tuesday evening through Wednesday evening.
* IMPACTS...Travel could be very difficult to dangerous and tire
chains may be required for some vehicles. Visibility may drop
below 1/4 mile at times due to falling and blowing snow. Those in
the backcountry should ensure they are prepared for dangerous
conditions. Very strong winds could cause extensive tree damage.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Monitor the latest forecasts for updates on this situation.
Remember, a Winter Storm Watch means that there is at least a 50%
chance of impactful winter weather conditions during the watch
period.
&&
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Glinskas
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