The winds produced in a tornado can be less than 100 miles per hour, or they can exceed 300 miles per hour. The Enhanced Fujita Scale ranges from EF 0 to EF 5, and this scale is used to estimate the wind damage produced by a tornado.
A tornado in 1999 near Bridge Creek, Oklahoma, had winds measured at 318 mph, which were the fastest winds ever recorded up to that point. However, it is possible that tornado winds have exceeded this speed, because wind-measuring instruments are usually destroyed in these intense winds. Tornadoes typically travel at between 30 and 70 miles per hour.