Arctic air mass pushes to the U.S. South; Midwest also bracing for dangerous wind chills12/15/2025(AP/WBCL) — An arctic air blast swept south from Canada, spreading into the northern United States. Thousands of people have been evacuated. In the nation's heartland, big cities like Chicago and Minneapolis faced dangerous wind chills. On Saturday, Grand Forks, North Dakota, it felt like minus 36 degrees. The cold air mass pushed south and east, with winter advisories as far as Alabama and Georgia.Locally, the arctic air has brought frigid temperatures and wind chills to the WBCL listening area. The National Weather Service reminds you to wear multiple layers, cover all exposed skin, and bring your pets inside. Click here for more details from the National Weather Service.