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Heavy Snow in Lower Clark Fork Region, Montana

Heavy Snow March 21, 2025 – March 22, 2025 · Lower Clark Fork Region, Montana

What the National Weather Service wrote

Periods of heavy snow fell at and around Lookout Pass in the mid-afternoon on the 21st, causing a full full blockage of Interstate 90 due to accidents and stuck vehicles. Periodic road closures continued through the morning of the 22nd with reports of 9 to 10 hours wait times for motorists attempting to cross Lookout Pass. The Lookout Ski resort reported 10 to 16 inches of snow over the 24-hour period ending on the morning of the 22nd.

The wider storm

Strong Pacific cold front with moisture surge led to periods of heavy mountain snow along the Idaho-Montana border.

Source: NOAA Storm Events Database, event 1235372. Narratives are written by the National Weather Service forecast office that issued the report.

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