Arctic air likely for the Upper Mississippi Valley, Great Lakes, and Upper Ohio Valley the end of next week to the middle of the following week. Low temperatures below -20 deg F possible in northern Minnesota and near -10 deg F for the western Great Lakes. https://t.co/1N4GaHytyK pic.twitter.com/OliM2bBuek

— NWS Climate Prediction Center (@NWSCPC) January 13, 2022