What was the costliest tornado in US history?
The costliest tornado outbreak occurred in 1999 in Oklahoma. From May 3 to May 6, more than 66 tornadoes coursed through the state. The largest single tornado, an F5 that at 301 mph contained the highest wind speed ever recorded, tore through Oklahoma cities of Moore, Newcastle, Bridge Creek, Midwest City, Del City and Oklahoma City, destroying more than 10,500 buildings and killing 42 people. The tornado caused $1.1 billion in damages.
