An arctic airmass combined with north winds to create dangerously cold wind chills of 40 to 50 below zero in the Arrowhead region.
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The episode as NWS DLH wrote it up.
An arctic airmass combined with north winds to create dangerously cold wind chills of 40 to 50 below zero in the Arrowhead region.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Duluth, MN wrote its last area forecast discussion before the first event at Jan 1, 5:33 PM CST, 3 hours 27 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
4 extreme cold/wind chill. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Minnesota in 2010Every state in 2010This day in weather historyWarnings in Minnesota, January 2010
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 212721, 212722, 212724, 212725.