A winter storm warning is in effect in the Chicago area that could bring up to 6-12 inches of snow in some areas through Sunday. The warning took effect overnight Saturday and continues through 6 a.m. on Sunday for all of the Chicago area and northwest Indiana.

A winter storm system is expected to intensify Saturday morning, bringing steady snow showers and creating potentially hazardous travel conditions across Illinois, Missouri, Iowa, Wisconsin and Michigan.

A major winter storm is blasting the Central U.S. with heavy snow this weekend, causing travel headaches for millions of people as they return home from Thanksgiving plans.

A winter storm watch will be in effect for much of northern and central Illinois and parts of northwest Indiana until 6 a.m. Sunday, with possible snow accumulations of over 6 inches.

The NWS warned that travelers should consider delaying travel unless it's "absolutely necessary," with driving expected to be very difficult to impossible.

Cold but quiet Thanksgiving weather is followed by a significant weekend snowstorm and then a blast of arctic air next week.

A Midwest snowstorm has already canceled and delayed thousands of U.S. flights, creating major headaches for those heading home after Thanksgiving.

A cross-country storm dumping snow across the Midwest has led to hundreds of canceled flights and snowy roads, including a 45-car pileup on one Indiana highway, amid the post-Thanksgiving travel rush.