Winter Weather Advisory issued April 1 at 11:02AM MDT until April 3 at 6:00AM MDT by NWS Missoula MT
Issue date: 2026-04-01T17:02+00:00
* WHAT...Snow expected. There is a likelihood of moderate winter weather impacts. Total snow accumulations between 4 and 7 inches for Butte, Georgetown Lake, Homestake Pass and MacDonald Pass. 1 to 3 inches for the lower valleys. Winds gusting as high as 35 mph. * WHERE...Highway 12 Garrison to Elliston, Butte, MacDonald Pass, Homestake Pass, and Georgetown Lake. * WHEN...From 6 AM Thursday to 6 AM MDT Friday. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. The hazardous conditions could impact the Thursday morning and evening commutes, especially over higher passes. * ADDITIONAL DETAILS...Heavy snow showers may occur mid morning on Thursday, causing low visibility and quickly changing road conditions.
Winter Storm Watch issued March 31 at 10:23AM MDT until April 3 at 6:00AM MDT by NWS Missoula MT
Issue date: 2026-03-31T16:23+00:00
* WHAT...Heavy snow possible. There is a chance of moderate to major winter weather impacts. Total snow accumulations between 6 and 12 inches possible for terrain above 5500 feet, including MacDonald Pass, Homestake Pass, Lost Trail Pass and Lolo Pass. 2 to 6 inches possible down to 3000 feet, including Butte, Seeley Lake and Anaconda. Winds could gust as high as 35 mph. * WHERE...Butte, Highway 12 Garrison to Elliston, I-90 East Missoula to Bearmouth, Georgetown Lake, Highway 93 Sula to Lost Trail Pass, Highway 83 Seeley Lake to Condon, Lolo Pass, MacDonald Pass, Homestake Pass, and Highway 200 Bonner to Greenough. * WHEN...From Thursday morning through late Thursday night. * IMPACTS...For MODERATE winter weather impacts, expect disruptions to normal activities. Hazardous traveling conditions. Use extra caution while driving. Closures and disruptions to infrastructure may occur. 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. The hazardous conditions could impact the Thursday morning and evening commutes, especially over higher passes.
