12 Interesting facts about tornadoes

  1. Tornado is the fastest wind on our planet, its wind speed is up to 300 mph.


  1. Tornado occurs much more frequently in America than in any other country. There are nearly 1000 tornadoes occurred there every year.


  1. Different tornados have different sounds, colors and shapes.


  1. The best place to avoid a tornado underground or semi- underground, so you can hide in cellar or basement when you suspect a tornado is approaching.


  1. The deadliest tornado on record occurred in the United States on March 18, 1925, called Tri-State Tornado, It swept through Missouri, Illinois and Indiana, 685 people died and 2,000 people were injured in the disaster.


  1. Tornado is usually rotating counterclockwisein the Northern Hemisphere, rotating clockwise in the Southern Hemisphere.


  1. Although tornado may occur at any time, studies have shown that the most likely time of tornado may happen is from 3 pm to 9 pm.


  1. The Joplin tornadois the costliest tornadoin American history, it happened on May 22, 2011, it caused $2.8 billion in damage.


  1. Tornados can last from a few seconds to more than one hour, but the average time is about ten minutes.


  1. According to the record of the National Weather Service, 55 peopledied inthe tornados in America in 2013.


  1. There are many different types oftornado, and Waterspout, Vortex and Landspout are three main types of tornado.


  1. Tornado often comes from thunderstorm or hurricane, but it can’t cause a hurricane.

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