Extreme Cold/Wind Chill — Southern Cass, Minnesota

2021-02-14 · Southern Cass, Minnesota

Wider weather episode

The last two nights of the arctic outbreak were the most widespread in terms extreme wind chills. On the night of the 13th, a surface low over Lake Superior coupled with high pressure over the Northern Plains set up a gradient over the Northland, keeping winds in place through the night and into the morning of the 14th. The entirety of the Northland saw extreme wind chills and air temperatures in the 30s and 40s below zero. This was the eighth night of an arctic outbreak across the region that lasted over a week.

Source: NOAA Storm Events Database, event_id 944759. Narrative written by the NWS forecast office that issued the report.