London, Ky. — More tornadoes plowed through the central U.S. on Monday, ripping apart buildings and knocking out power as people from Texas to Kentucky continued to clean up from days of severe weather that killed more than two dozen people and destroyed thousands of homes and buildings.

Around 30 million Americans may see storms producing tornadoes, strong winds, large hail and flash flooding on Tuesday, including those already dealing with damage from previous tornadoes over the weekend.

A deadly, tornado-spawning storm system that's pummeled large portions of the country for days was threatening the central U.S. into Monday night. The big picture: The National Weather Service confirmed at least four tornadoes in Oklahoma and Nebraska,