Both airports are closed in Houston on Tuesday in anticipation of snow and ice. Schools are also closed in the Houston and Austin areas on Tuesday. Parts of Louisiana and Mississippi could potentially see between 5 and 8 inches of snow,

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

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,

Preparations are underway from Houston to Atlanta as a rare winter storm sets its sights on the southern U.S., where it's expected to bring a messy mix of heavy snow, sleet and freezing rain that could have a major impact on travel and daily life.