Extreme Cold/Wind Chill — Koochiching, Minnesota

2023-01-28 to 2023-01-29 · Koochiching, Minnesota

Event narrative

Windchills fell to -47F at International Falls with -45F reported at Birchdale and persisted for around 11 hours below -40F.

Wider weather episode

Cold high pressure built across the region starting the evening of the 28th and continuing through the morning of the 30th. Air temperatures dropped into the 20s and 30s below zero F with very light winds under mainly clear skies. Wind chills in the -40s F were observed across far northern reaches of the region with International Falls reaching -47F the morning of the 29th.

Source: NOAA Storm Events Database, event_id 1074076. Narrative written by the NWS forecast office that issued the report.