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Correction for the speed of a Tornado

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How fast is 679 meters per minute?
It's about one-fifth as fast as a Tornado
The speed of a Tornado is about 3,312.5660 meters per minute.
(EF2) (wind speed range average)
According to the Enhanced Fujita scale implemented by the US National Oceanographic and Atmospheric Administration, a "significant" tornado has an Enhanced Funjita scale classification of EF2 and is characterized by wind gust speeds between 2,950.4640 meters per minute and 3,674.6690 meters per minute. The largest recorded tornado — an F4 event occurring in Nebraska in May, 2004 — was almost 4.02 km (2.5 mi) across.
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