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An EF5 rating on the new scale requires a higher standard of construction in houses than does an F5 rating on the old scale. So, the complete destruction and sweeping away of a typical American frame home, which would likely be rated F5 on the Fujita scale, would be rated EF4 or lower on the Enhanced Fujita scale.
Fujita rated tornadoes from 1916 to 1992 [4] [5] and Tom Grazulis of The Tornado Project retroactively rated all known significant tornadoes (F2–F5 or causing a fatality) in the U.S. back to 1880. [6] The Fujita scale was adopted in most areas outside of the United Kingdom. [citation needed]
EF ratings range from 0-5, and a higher rating means higher wind speeds. EF0: 65-85 mph. EF1: 86-110 mph. EF2: 111-135 mph. EF3: 136-165 mph. EF4: 166-200 mph. EF5: Over 200 mph. EF5 tornadoes in ...
[4] [5] The EF-scale and variants thereof are officially used by the United States, Canada, [6] [7] France, [8] and Japan, [9] as well as unofficially in other countries, such as China. [ 10 ] Unlike with the F scale, no analyses have been undertaken at all to establish the veracity and accuracy of the T scale damage descriptors.
Tornadoes are ranked from EF0 to EF5. The scale is divided into six categories: F0: Gale; 65 to 85 mph. F1: Weak; 86 to 110 mph. F2: Strong; 111 to 135 mph. F3: Severe; 136 to 165 mph.
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.
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