Around 40 million people in the U.S. are under a winter storm warning from an unusual blast of severe winter weather.

Snow is likely to fall across South Texas tonight into Tuesday. North Texas will remain mainly dry and quite cold.

Frigid temperatures engulfed the South on Monday ahead of a winter storm that's expected to spread heavy snow and disruptive ice around a region from Texas to north Florida that rarely sees such weather,

Millions of people from Texas to Florida and the Carolinas are on alert as a historic winter storm gets set to blanket the region with snow and ice that’s expected to significantly impact travel and daily life.