Roughly 40 million people from Texas to the Carolinas are under winter weather alerts as a rare winter storm amid bone-chilling temperatures brings potentially historic snowfall to cities unused to harsh,

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

A powerful and historic winter storm is bringing heavy snow to the South, including Houston where snow is covering roads and officials have been urging residents to stay home for safety.