High Wind — Big Belt, Bridger and Castle Mountains, Montana
2025-12-19 · Big Belt, Bridger and Castle Mountains, Montana
64 MG
Magnitude
Event narrative
A few sensors in this zone measured gusts of 58 mph or greater, including RAWS station TT838 Battle Ridge, and mesonet stations MTBZH Bozeman Pass (MT DOT) and MTBDC Bridger Canyon (MT DOT). The peak gust was 74 mph at Battle Ridge.
Wider weather episode
Surface low pressure gradually deepened in lee of terrain across Northern MT and Southern AB ahead of a shortwave approaching the region during the 18th. As mid level flow increased, strong winds developed, eventually spreading across most of the region heading into the 19th behind a cold front.
Source: NOAA Storm Events Database, event_id 1306451. Narrative written by the NWS forecast office that issued the report.