Extreme Cold/Wind Chill — Fergus County Below 4500ft, Montana

2026-01-23 · Fergus County Below 4500ft, Montana

Event narrative

AWOS station K1EM Echo reported extreme cold wind chills as low as -37 degrees.

Wider weather episode

An upper-air disturbance helped to drive an Arctic airmass from Canada into Northern MT. Winds were generally light, but north winds helped lock the cold airmass into the Hi-line on the morning of the 23rd. Extreme cold conditions developed as a result.

Source: NOAA Storm Events Database, event_id 1311724. Narrative written by the NWS forecast office that issued the report.