Severe · Winter Storm WarningActive alert
Winter Storm Warning issued October 10 at 10:40PM MDT until October 12
Affecting Gallatin Valley
In effect until: Oct 11, 2026, 9:15 PM
Gallatin Valley
Likely impact; effects through 9:15 PM.
If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1.
Read the original bulletin (official text)
* WHAT...For the Winter Weather Advisory, wet snow. Total snow accumulations up to two inches. Winds gusting as high as 40 mph. For the Winter Storm Warning, heavy, wet snow expected. Total snow accumulations between 4 and 8 inches. * WHERE...Gallatin Valley. * WHEN...For the Winter Weather Advisory, until 6 PM MDT Sunday. For the Winter Storm Warning, from 6 PM Sunday to 9 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. The hazardous conditions will impact the Monday morning commute. * 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.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™