Extreme Cold/Wind Chill — Upper Blackfoot and Macdonald Pass, Montana

2023-02-22 · Upper Blackfoot and Macdonald Pass, Montana

Event narrative

Mesonet station MTMDP MacDonald Pass measured a brief wind chill of -43 F.

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 1073978. Narrative written by the NWS forecast office that issued the report.