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Heavy Snow in Big Belt, Bridger and Castle Mountains, Montana
Heavy Snow December 5, 2025 – December 6, 2025 · Big Belt, Bridger and Castle Mountains, Montana
What the National Weather Service wrote
Snotel equipment estimated new snowfall of 9 inches or more at Sacajawea (9 inches) and Brackett Creek (10 inches).
The wider storm
A jet streak brought an initial round of mainly mountain snow across the region December 4th into early December 5th. After a break, a more potent wave progressed across the Northern Rockies, bringing additional heavy snow. All in all, mountains seeing the heaviest snow were across the Central Montana ranges and southward.
Source: NOAA Storm Events Database, event 1299060. Narratives are written by the National Weather Service forecast office that issued the report.
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