Extreme Cold/Wind Chill — Beaverhead and Western Madison Below 6000ft, Montana

2025-02-11 · Beaverhead and Western Madison Below 6000ft, Montana

Event narrative

Two sensors measured criteria cold, including ASOS station KDLN Dillon Airport, which measured a wind chill of -36 F.

Wider weather episode

A cyclonic flow aloft, with several embedded shortwaves passing through it, allowed for several pushes of bitterly cold air to filter into the region from Canada in the early to mid February timeframe.

Source: NOAA Storm Events Database, event_id 1246046. Narrative written by the NWS forecast office that issued the report.