Severe Cold Wave ● Closed
Winter Storm Warning issued October 10 at 10:56AM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
* WHAT...Heavy, wet snow expected. Total snow accumulations between 6
and 12 inches. Highest snowfall amounts in the northern slopes
between 4500 feet and 6500 feet. Winds gusting as high as 45 mph.
* WHERE...Elkhorn and Boulder Mountains, Little Belt and Highwood
Mountains, and Snowy and Judith Mountains.
* WHEN...From 6 PM this evening to 6 AM MDT Monday.
* IMPACTS...Travel could be very difficult. Gusty winds combined with
the wet and heavy nature of the snow could bring down tree
branches. Isolated power outages are possible.
* ADDITIONAL DETAILS...Snowfall amounts will vary drastically from
grassy surfaces to roadways, most notably at lower elevations, with
accumulations on non-grassy surfaces being confined mainly to
between the evening through late morning hours.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Little Belt and Highwood Mountains; Snowy and Judith Mountains; Elkhorn and Boulder Mountains |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-11T06:00:00-06:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportAlso reported by: WMO WMO WMO WMO
This event as JSON · API and licence
Source updated 9 days ago (Oct 10, 2026 17:01 UTC) · we last heard from WMO Alert Hub (national weather services) 45 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Little Belt and Highwood Mountains; Snowy and Judith Mountains; Elkhorn and Boulder Mountains
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
Hypothermia and frostbite prevention, home heating safety, and surviving being stranded in a vehicle.
Open Severe Cold & Winter Storm Safety →Earlier cold wave events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.