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How dose tornado formed? |
A tornado is a violently rotating column of air in contact with the earth's land surface that originates from a thunderstorm. If it is not in contact with the earth's surface then it is a funnel cloud. If it is not rotating then it is a straight-line wind event. If it not does originate from a thunderstorm then it is a dust devil circulation. A typical significant tornado also originates from the updraft region of a strong thunderstorm. Those that occur along the leading edge of a straight-line wind gust fronts are called gustnadoes. A tornado over the water is called a water spout. A tornado that forms mainly from the stretching of an updraft is termed a land spout. |