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

Another winter storm is brewing for the Gulf Coast. Up to four inches of snow are forecast for Houston overnight Monday into Tuesday. As a result, both major airports in the city, George Bush Intercontinental and William P.

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,