The National Weather Service says the biggest twister formed about 45 miles southwest of Oklahoma City, then cut a path at least a half-mile wide as it moved north and east.
- 40 people killed
- 563 treated at hospitals in Oklahoma City metro area
- Nearly 2,000 houses destroyed in Oklahoma City area alone
- As many as 1,600 residents at Red Cross shelters
Most of the destruction occurred in Wichita, and the southern suburb of Haysville.
- At least five people killed, with death toll expected to rise
- More than 100 injured; at least 117 treated at area hospitals
- Two trailer parks devastated by tornadoes, but damage estimates were not yet available Tuesday morning
- At least 200 residents in shelters