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 cross-country storm is strengthening as it moves over the central United States Friday and pounding the region with damaging hurricane-force wind gusts, creating a blinding dust storm and fanning flames amid a “catastrophic” fire risk.

A sprawling storm system crossing the U.S. overturns semitrucks on highways and fans wildfires in Texas, Oklahoma, Missouri and Kansas. Tornadoes might hit the South.