This after an estimated 21 tornadoes were reported on May 18. Tornadoes damaged homes just before 7 p.m. local time at Grinnell, along Interstate 70 in northeast Kansas, and just before midnight in the area of Plevna in south-central Kansas, the weather service said. No injuries were reported.

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.

Thousands of people from Texas to Kentucky cleaned up Monday from severe weather that killed more than two dozen people and destroyed thousands of homes and buildings in four days as forecasters warned that more tornadoes and storms were possible in the central U.