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.

The first of this week’s back-to-back-to-back winter storms is dumping snow, ice and rain over a 1,500 mile stretch of the eastern US Tuesday. The second winter storm will hit some of the same areas in quick succession and dump the most substantial snow of the season over Chicago.