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The highest accepted forward speed of an intense tornado on record was 75 mph (121 km/h) from the 1974 Guin tornado that tore across northwestern Alabama. Other weak tornadoes have approached or exceeded this speed, but this is the fastest forward movement observed in a major tornado. [16] The 1977 Birmingham tornado had an average forward ...
The 1999 Bridge Creek–Moore tornado was a large, long-lived and exceptionally powerful F5 tornado in which the highest wind speed ever measured globally was recorded at 321 miles per hour (517 km/h) by a Doppler on Wheels (DOW) radar.
During 1999, a total of 1,339 tornadoes touched down across the United States, ranking it as the eighth-most active year since reliable records began to be kept in 1950; [4] at the time, 1999 was the fourth-most active year on record. [5] The year began with the most active January on record, featuring 216 tornadoes. [5]
The deadliest tornado in modern U.S. history struck Joplin, Missouri, on May 22, 2011. It was the deadliest tornado since SPC records began in 1950. Nearly 1,000 were injured. The EF5 tornado had ...
The Xenia, Ohio, F5 tornado of April 3, 1974.This was one of two tornadoes to receive a preliminary rating of F6, which was downgraded later to a rating of F5. [1]This is a list of tornadoes which have been officially or unofficially labeled as F5, EF5, IF5, T10-T11, the highest possible ratings on the various tornado intensity scales.
New mobile radar data shows that wind speeds in the recent Greenfield tornado passed 300 mph. Scientists say it's rare.
Highest natural ground surface temperature 70.7 °C (159.3 °F) ... including the longest known tornado track, fastest speed for a significant tornado, ...
Some of the most notorious twisters in U.S. history were wedge tornadoes, including the EF5 that leveled Joplin, Missouri, on May 22, 2011, and the El Reno tornado, which was a jaw-dropping 2.6 ...