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A tornado is a rapidly rotating column of air that is in contact with both the surface of the Earth ... However, the vast majority of tornadoes occur in the Tornado Alley region of the United States, although ..... Tornadic storms do not contain more lightning than other storms and some tornadic cells never produce lightning at all.

Aug 19, 2014 ... View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann Tornadoes are the most violent storms on Earth, with wind ...


May 11, 2015 ... Tornadoes remain deadly and relatively unpredictable, despite recent advancements in weather science. Here's what scientists do know:.


How do tornadoes form? Most tornadoes form from thunderstorms. You need warm, moist air from the Gulf of Mexico and cool, dry air from Canada. When these ...


How Do Tornadoes Form? Tornadoes are associated with large (supercell) thunderstorms that often grow to over 40,000 feet. A column of warm humid air will ...


A tornado can form where winds blow at different speeds causing rotation (A) ... A horizontal rotating column of air can form at the boundary between these two ... and do not necessarily reflect the views of the National Science Foundation.


Oct 16, 2014 ... Every year tornadoes rip through the U.S. Midwest, leaving death, injury and billions of dollars of damage in their wake. Where do these ...


Tornadoes are the most violent of all atmospheric storms. Where do tornadoes occur? Tornadoes occur in many parts of the world, including Australia, Europe, ...


Here is simple step by step description of how a tornado develops.