OFFICIAL · Severe weather

Winter Storm Warning issued October 10 at 4:13PM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT

Observed Oct 10 2026, 22:13 UTC · Updated Oct 11 2026, 10:49 UTC

* WHAT...Heavy, wet snow expected. Total snow accumulations between 6 and 14 inches. Winds gusting as high as 40 mph. * WHERE...Big Belt, Bridger and Castle Mountains. * WHEN...Until 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. 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.

Location 46.962, -111.596. ARC Warning did not create the underlying report.

Sources

• OFFICIAL

  nws

  Winter Storm Warning issued October 10 at 4:13PM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT

  Oct 10 2026, 22:13 UTC

• OFFICIAL

  nws

  Winter Storm Warning issued October 10 at 10:40PM MDT until October 12 at 6:00AM MDT by NWS Great Falls MT

  Oct 11 2026, 04:40 UTC

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