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www.reference.com/article/fire-tornado-form-744c90e9200823fd

Fire tornadoes form when combustible gases ignite in windy conditions. According to the Mother Nature Network, most fire tornadoes spawn from wildfires. The center of a fire tornado is a column of flaming gas up to 9 feet in diameter. A whirling column of fresh air circ...

www.reference.com/article/tornado-ef43ef45ff586a3d

According to The Weather Channel, a tornado is "a violently rotating column of air that stretches from a cloud to the Earth's surface." The source also states that tornadoes are "the most destructive of all storm-scale atmospheric phenomena." Often forming from a thunde...

www.reference.com/article/tornado-children-f2881c2318f50f87

Tornadoes are also called twisters, and the wind speed of extreme tornadoes can reach up to 300 miles per hour. The United States averages 1,200 tornadoes each year, which is more than any other country. Tornadoes that take place above water are called waterspouts. Most...

www.reference.com/article/tornado-4a4142800ac0874e

A tornado is a violently swirling column of air that forms at the base of a thunderstorm. When the tornado is visible, it's because the air gathered up water droplets, dust particles and debris. It is a destructive force of nature, with winds that can exceed 300 miles p...

www.reference.com/article/interesting-tornadoes-f3073eaea92fc057

One of the worst tornado disasters in the United States occurred in 1925 across three states, killing 695 individuals in Illinois, Missouri and Indiana. Although damage from a tornado is usually less than 1600 feet wide and contact with the ground lasts only a few minut...

www.reference.com/article/tornadoes-work-976bd60145bd77e7

The natural forces that form a tornado involve a rotating column of air that extends from the base of a thunderstorm cloud to the surface of the ground. These rotating forces tend to be violent due to their intense speed.

www.reference.com/article/causes-tornado-63b8e55c58ecb272

Strong warm updrafts carrying large amounts of moisture interacting with fast-moving cool, dry winds above cause tornadoes when the two air currents begin to swirl around each other and reorient toward the ground. The moist updraft is always of a type that forms large s...