Extreme Cold/Wind Chill — Big Belt, Bridger and Castle Mountains, Montana

2023-02-22 · Big Belt, Bridger and Castle Mountains, Montana

Event narrative

Mesonet station MTBZH Bozeman Pass measured wind chill less than -40 F twice during the calendar day of February 22.

Wider weather episode

An Arctic front brought significantly colder temperatures and combined with blustery winds, resulted in patchy extreme wind chills during the day February 22.

Source: NOAA Storm Events Database, event_id 1073975. Narrative written by the NWS forecast office that issued the report.