Two winter storm systems are on the way this week, both bringing the potential for accumulating snow and major travel problems. The first big one will hit Chicago on Wednesday. Widespread accumulating snow is expected in the late morning and lasting through the afternoon and evening.

Weather officials issued a winter weather advisory until 6 a.m. Thursday, warning of icy conditions and slick roads. A wintry mix of freezing rain, slow and sleet could make for dangerous travel conditions.