1999 Bridge Creek–Moore tornado

The 1999 Bridge Creek–Moore tornado was a large, long-lived, and exceptionally violent F5 tornado that produced the highest tornado wind speed ever recorded by doppler weather radar—321 miles per hour (517 km/h), measured by a Doppler on Wheels (DoW). One of the strongest tornadoes ever recorded to affect a metropolitan area, the tornado devastated southern portions of Oklahoma City, Oklahoma as well as surrounding municipalities to the south and southwest of the city during the early evening of Monday, May 3, 1999.

Source: Wikipedia — 1999 Bridge Creek–Moore tornado (CC BY-SA 4.0)