Snow, freezing rain and rain are underway in the southern Plains as a potent winter storm strengthens Thursday.

Another blast of winter storms is closing schools, snarling flights and putting millions of residents on alert across parts of the Deep South and south-central U.S. The National Weather Service says heavy snowfall and icy conditions are likely Friday in Mississippi,

A winter storm is moving across the southeastern portion of the U.S., bringing snow, sleet and other cold-weather conditions to a part of the nation not accustomed to coping with blustery temperatures.