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Heavy Snow in Big Belt, Bridger and Castle Mountains, Montana

Heavy Snow April 1, 2025 · Big Belt, Bridger and Castle Mountains, Montana

What the National Weather Service wrote

Lewis and Clark Emergency manager reported 16 inches new snow above the Horse Gulch burn scar between the evening of March 31 and April 1 at 1145 AM MDT. Additionally, Snotel equipment at Sacajawea and Brackett Creek both estimated 10 inches new snow between 10 PM March 31 and 7 AM April 1.

The wider storm

A more convective type of rain/snow transitioned to be more stratiform across the region as several embedded waves within broad cyclonic flow consolidated across the region. Uncertainty was high with this system, closely related to how quickly snow levels fell across the region. Several areas saw snow in excess of 10 inches, including a snotel estimating 17 inches new snow in Jefferson County.

Source: NOAA Storm Events Database, event 1257636. Narratives are written by the National Weather Service forecast office that issued the report.

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