The 1999 Bridge Creek–Moore tornado was a large, long-lived, and exceptionally powerful F5 tornado in which the highest tornado wind speed ever measured with a doppler radar was recorded at 321 miles per hour (517 km/h) by a Doppler on Wheels.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. The tornado covered 38 miles (61 km) during its 85-minute existence, destroying thousands of homes, killing 36 people (plus another five indirectly), and leaving US$1 billion (1999 USD) in damage, ranking it as the fifth-costliest on record not accounting for inflation. Its severity prompted the first-ever use of the tornado emergency statement by the National Weather Service.
The tornado with the highest wind speed ever recorded on Earth is the 1999 Bridge Creek–Moore tornado that struck Oklahoma on May 3, 1999. Doppler radar measurements recorded wind speeds of approximately 302 mph (486 km/h) within the tornado.
This tornado was part of a larger outbreak and reached EF5 intensity, causing massive destruction. It remains the benchmark for extreme tornado wind speeds in meteorological history. 🌪️📏
Fun fact: That measurement wasn’t taken with an anemometer on the ground—it was captured by a mobile Doppler radar unit, which is how such extreme winds were safely recorded.

I know its not that easy to remember you can search on Google and read about it! The answer its a C (1999 ) this Tornado was a F5 (480-485 km/h ) speed