According to the National Weather Service, in fact, "waves of snow" will potentially settle on Chicago starting Tuesday night through Thanksgiving Day, on Thursday. Although the models aren't yet clear—exact potentially impacted areas have not been determined—the mere chance of some powder will undoubtedly affect the busy holiday period.

Thanksgiving travel in Chicago may hit record numbers, with around 3 million people expected at airports and over 71 million by car.

Two weather occurrences are developing for Chicago in the coming week. First, a blast of winter cold is set to settle in next weekend. High temperatures will struggle to rise above the 20s, while lows will dip into the teens.