More than 800,000 homes and businesses across the upper Midwest were in the dark Thursday morning after a dangerous ice storm coated roads and knocked down power lines.
More than a half-inch of ice accumulated in some areas, especially in Michigan where most of the power outages occurred, according to PowerOutage.us. About 780 US flights have been canceled Thursday, including 25% of the daily schedule at Minneapolis-St. Paul International Airport.
Winter storm warnings and watches stretch from northern Nebraska to Maine, and blizzard warnings remain in effect in Minnesota and the Dakotas.