The coldest air in this long duration arctic blast is still to come! We’re looking at widespread 20s and 30s below zero for overnight lows in northeast Minnesota and northwest Wisconsin from tonight through Sunday night, with some 40s below even possible in the typical cold spots. Daytime highs will generally range from around 10 below to 2 above zero from Thursday through Sunday. There could be a few flurries or light snow showers in parts of the Northland Thursday afternoon into early Friday, but accumulations will be very light, otherwise a dry weather pattern continues into at least early next week. Note: I’m still seeing signs per model guidance that temperatures will slowly begin to moderate toward the middle/end of next week, although I’m not seeing any above normal temps in Duluth at least through February 19 the way it looks now.
A Wind Chill Advisory covers all of northeast Minnesota and northwest Wisconsin until 11 AM Sunday. Some cities included in the advisory…International Falls, Bigfork, Grand Rapids, Cass Lake, Walker, Brainerd, Aitkin, Hill City, McGregor, Pine City, Hinckley, Moose Lake, Cloquet, Duluth, Hibbing, Ely, Two Harbors, Isabella, Silver Bay, Grand Marais, Superior, Solon Springs, Washburn, Bayfield, Ashland, Hurley, Danbury, Siren, Minong, Spooner, Shell Lake, Hayward and Winter. Wind chills as low as 35 to 40 below zero. The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes.
…Record Low Temperatures for February 11…
Record or near record cold is possible Thursday morning at Hibbing and International Falls.
- International Falls, MN: -40 F set in 2008
- Brainerd, MN: -39 F set in 1899
- Hibbing, MN: -36 F set in 1967
- Duluth, MN: -32 F set in 1988
- Ashland, WI: -27 F set in 1988
An upper level low (Piece of the Polar Vortex) has elongated in a west to east fashion today across western and central Canada. Eventually will see this upper low dig farther south/east by this weekend.
Arctic air in our area while an active storm track (yellow) continues near the temperature gradient across the Southern Plains, Midwest, Ohio Valley and eastern US.
Water vapor loop from Wednesday, February 10, 2021.