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,

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

The winter storm is forecast to spread across parts of Oklahoma, Arkansas and Texas on Friday through Saturday, according to the National Weather Service. Six to 10 inches of snow

A major winter storm sweeping across the South blanketed areas with snow, sleet and freezing rain. NBC News' Marissa Parra reports the icy conditions in Atlanta triggered flight delays across the country.

A massive winter storm is blanketing the South with ice and record-breaking snow, with some cities seeing the most snowfall from a single storm in decades. Twenty states, from Texas to Delaware, were on alert Friday for snow and ice as the storm continued to move across the South.