Millions should prepare for disrupted travel and winter conditions as a fierce storm is set to bring ice, snow and freezing rain to much of the U.S.

A major, disruptive winter storm was sweeping across the central U.S. on Sunday, forecasters said, bringing with it a dreaded combination of snow, ice and plunging temperatures. The National Weather Service issued winter storm warnings from Kansas and Missouri — where blizzard conditions are expected — to New Jersey.

A major winter storm forecast to produce heavy snow, significant ice and frigid temperatures was set to begin in the central U.S. on Saturday and move east over the next several days, according to the National Weather Service.