This incoming storm is tied to the remnants of the same system that is bringing beneficial, yet threatening, widespread rain to Southern California starting Sunday.

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

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