LONDON, Ky. — As a powerful tornado moved toward Laurel County late Friday, Zach Wilson drove through the storms to get to his parents.

"A maturing central U.S. storm system is expected to produce another round of dangerous severe weather and instances of flash flooding today," the National Weather Service warned Monday. The forecast discussion added that "from a broader perspective," locally heavy rain was forecast to reach from the northern Plains to Texas.

The National Weather Service is warning of still more days of dangerous weather conditions across the central U.S. The agency issued the forecast Monday after four days of tornadoes, thunderstorms and heavy rain killed more than two dozen people.