A winter storm is expected to bring snow, sleet and freezing rain to a large swath of the Midwest and Northeast Wednesday and Thursday, causing treacherous travel conditions and potential power outages for millions of Americans,

Forecasts anticipate that an ice storm will hit the Midwest and Northeast by mid-week, with at least six states expecting a high chance of impacts. Widespread freezing rain is expected to bring impacts from the Midwest to the Mid-Atlantic beginning on Wednesday.