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.

A winter weather advisory goes into effect from 9 a.m. until 3 a.m. on Thursday. The heaviest of the snow is expected between 9 a.m. and 5 p.m.

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.

Multiple rounds of wintry weather will march across the United States this week, with one storm expected to bring heavy snow to the Mid-Atlantic, from Washington, D.C., to New York, while another just behind it affects a stretch from Kansas City to Chicago.

The National Weather Service issued a winter storm warning at 2:26 a.m. EST on Wednesday valid from 1 p.m. EST until Thursday 7 a.m. EST for Alpena, Alcona, Ogemaw, Iosco, Gladwin and Arenac counties.

Back-to-back winter storms are predicted to affect 29 million Americans across the country. Here’s the latest from the National Weather Service. The National Weather Service has issued a winter storm watch from Tuesday morning until Wednesday morning,

A procession of winter storms is forecast to bring snow, sleet, ice and potentially flood-inducing rain to sprawling bands of the U.S. this week.