The threat of tornadoes is moving east into the Mississippi Valley and Deep South a day after a massive storm system moving across the country unleashed winds that damaged buildings, whipped up dust storms that caused deadly crashes and fanned more than 100 wildfires in several central states.

A powerful storm system swept across the central US on Friday, causing deadly crashes, tornadoes, and extensive damage.

The National Weather Service warned of extreme weather across a vast swath of the country that is home to more than 100 million people.