Severe Cold Wave ● Closed
Winter Storm Watch issued October 8 at 11:48PM 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 possible. Total snow accumulations between 6
and 12 inches along the Big Belt Mountains and between 6 and 12
inches above 7000 feet in the mountains of Madison and Gallatin
counties. Winds could gust as high as 45 mph.
* WHERE...Big Belt, Bridger and Castle Mountains and Gallatin and
Madison County Mountains and Centennial Mountains.
* WHEN...From Saturday evening through late Sunday night.
* IMPACTS...Travel could be very difficult, especially over mountain
passes. Back country conditions may be very dangerous. Wet snow and
gusty winds may down trees limbs and power lines.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Big Belt, Bridger and Castle Mountains; Gallatin and Madison County Mountains and Centennial Mountains |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Future |
| Cap Certainty | Possible |
| Cap Expires | 2026-10-09T18:15:00-06:00 |
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 reportThis event as JSON · API and licence
Source updated 10 days ago (Oct 9, 2026 05:50 UTC) · we last heard from WMO Alert Hub (national weather services) 28 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: Big Belt, Bridger and Castle Mountains; Gallatin and Madison County Mountains and Centennial 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.