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

2023-02-23 · Upper Blackfoot and Macdonald Pass, Montana

Event narrative

Multiple sensors measured wind chills of -40 or less, including MTMDP MacDonald Pass which measured a wind chill of -52 F.

Wider weather episode

The first of two sets of wind chill warning were issued the morning of Feb 23 until 11AM. Cold temps and sufficient winds resulted in a frigid morning.

Source: NOAA Storm Events Database, event_id 1071996. Narrative written by the NWS forecast office that issued the report.