A second winter storm in as many days will slam parts of the Midwest before rolling toward the East Coast. Major travel disruptions are likely.

The primary concerns from the next storm will be icy conditions, especially in northwestern New Jersey. Hundreds of school districts delayed openings or are closed on Wednesday. More school schedule changes could be announced for Thursday morning with the next shot of winter weather.

A snowstorm blew into the mid-Atlantic states on Tuesday, causing dozens of accidents on icy roads, prompting school closures and stoking worries about possible power outages.