Why Do Tornadoes Occur?

Answer

Tornadoes occur when two masses of different temperatures and humidity collide. If there is unstable atmosphere at the lower area, then an upward movement of warmer air is formed. This leads to a strong spiral that rises and intensifies resulting in violent funnels of tornadoes.
Q&A Related to "Why Do Tornadoes Occur"
A tornadic waterspout is a tornado that forms over the water or one that forms on land and then travels over the water. Unlike a fair-weather waterspout, it develops during a severe
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1 Additional Answer
Tornadoes occur when there is a supercell thunderstorm. They occur when there is a northern tropical air blowing from the gulf, cold air from Canada reaches over 50 miles per hour, and when jet stream air reaches a speed of 150 mph. You can find more information here: http://www.hprcc.unl.edu/nebraska/tornadoes-NDS99why.html
Explore this Topic
A tornado occurs when warm moist air from the grounds raises upward and meets with cool dry air. Different winds at different levels feed the updraft and cause ...
Tornadoes occur when there is a northerly flow of tropical air from the Gulf of Mexico. Also if there are winds at a high speed which derive from Canada or the ...
Tornadoes are a pretty frequent occurrence in the United States. There is an average of a 1,000 that occur each year and often more since some go unrecorded. ...
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