A tornado is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. Tornadoes are capable of inflicting extreme damage.
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The destructive power of a tornado
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Characteristic of climate of the USA are frequent tornadoes. The tornado occurs in the USA because there is a lot of flat district.
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Classification of tornadoes : Bichepodobnye Indistinct Compound Fiery Water Earth Snow
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The largest tornadoes for all history of supervision occurred in the State of Oklahoma of the United States of America during a tornado series in the second half of May, 2013 Wind speed in it reached 322 km/h, diameter of a funnel — about 3 km.