A winter storm that brought snow, sleet and freezing rain to a large swath of the Midwest swept into the mid-Atlantic and Northeast on Thursday, causing treacherous travel conditions, prompting school delays and closures and potential power outages for millions of Americans.

A winter storm is expected to bring snow and ice to the Midwest and Northeast beginning Wednesday. Here's which states will be impacted.

Forecasters warn that a storm stemming from the Midwest could bring between 6 to 9 inches of snow Saturday night to Massachusetts.