Crews plan to assess the damage Tuesday after the National Weather Service says at least two tornadoes touched down in Missouri.
Several homes were damaged or destroyed in the Kansas City area Monday night as a line of severe storms moved across the state.
Oak Grove Emergency Management Director Mark Sherwood says a tornado damaged about 20 homes in the town and 10 to 15 people suffered non-life-threatening injuries.
In Smithville, north of Kansas City, Police Chief Jason Lockridge says 20 to 25 homes were damaged. Local media reports also described damage to planes and hangars at the Johnson County Executive Airport in Olathe, Kansas.
The website for the utility company Kansas City Power & Light showed about 40,000 customers without power early Tuesday. That's down from more than 100,000 late Monday night.