The storms concentrated damage Wichita, Kansas and in Oklahoma, where 21 injuries were reported throughout the state.
The National Weather Service was forecasting more of the same for the area including Oklahoma City and Tulsa today afternoon and evening, warning of the possibility of tornadoes and baseball-sized hail.
The worst of the damage yesterday appeared to be at a mobile home park located near Shawnee among gently rolling hills, southeast of Oklahoma City.
Forecasters had been warning of bad weather since Wednesday and yesterday said conditions had ripened for powerful tornadoes. Wall-to-wall broadcasts of storm information spread the word yesterday, leaving Pottawatomie County Sheriff Mike Booth grateful.
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"There was a possibility a lot more people could have been injured," Booth said.
Booth said a 79-year-old man was found dead out in the open at the Steelman Estates Mobile Home Park, but the sheriff didn't have details on where he had lived.
Emergency officials traversed the neighbourhoods struck in Oklahoma in an effort to account for everyone. Keli Cain, a spokeswoman for the Oklahoma Department of Emergency Management, said that, many times in such situations, people who are not found immediately are discovered later to have left the area ahead of the storm.
A storm spotter told the National Weather Service that the tornado left the earth "scoured" at the mobile home park. At the nearby intersection of Interstate 40 and US 177, a half-dozen big trucks were blown over, closing both highways for a time.