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Sponsor: PAGLIARINI INTERNATIONAL BOAT ▶ |
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![]() Estimation of wind speeds based upon the damages caused by tornadoes to buildings and structures The Fujita scale (F-Scale) was devised in 1971 by professor T. Theodore Fujita of the University of Chicago to classify U.S. tornadoes in 12 categories bridging the gap between the force 12 of the Beaufort wind speed scale and Mach-1 number (ratio of the speed of an object to the speed of sound). Only the first six categories (F0- F5) are used as the maximum wind speeds of tornadoes are not expected to exceed the 512 km/h (277 kt), upper limit of F5 Reference: 1987 - Fujita, T. Theodore, "U.S. Tornadoes Part 1 70-Year Statistics," Satellite and Mesometeorology Research Project (SMRP) Research Paper Number 218, University of Chicago, 122 pp. ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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![]() THE FUJITA TORNADO SCALE
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