A series of storms will travel from central Canada to the Midwest and Northeast into early next week. Each storm will bring areas of steady snow, while repeated surges of cold air will produce rounds of lake-effect snow and create the risk of rapid freeze-ups.

Bursts of heavy lake-effect snow have started falling in Chicago, and remain in the weather forecast throughout Friday before the band moves to Northwest Indiana overnight. A ground stop was in place for more than two hours for flights headed to O'Hare ...