Ultimately, the two primary causes of tornadoes are convective instability, which leads to thunderstorms, and wind shear, which gives those storms the rotation they need to produce tornadoes.
In the spring air masses with a large temperature or humidity difference collide frequently. This causes the strong thunderstorms that can spawn tornadoes.
The main piece of technology used to track tornadoes is doppler weather radar, which can detect the wind signature of a developing tornado.
Yes. Tuscon has been hit by at least 2 tornadoes in the past 60 years.
No. A tornado is a microscale storm, as very few tornadoes get to be over 2 kilometers in diameter.
Many tornadoes in Florida start as waterspouts, which develop when the ocean water is warmer than the air above it, triggering updrafts that, under the right conditions, can start rotating. Tornadoes can also form by typical tornadogenesis, which is outlined in the related question.
Main averages 2 tornadoes per year.
Tornadoes, simply put, are produce by complicated interactions of wind current in a supercell thunderstorm.
Weather [hurricanes, tornadoes, floods], volcanoes, earthquakes, avalanches, tidal waves (tsunamis), and fire
It causes tornadoes
Yes. Main averages 1 to 2 tornadoes per year, though they are rarely stronger than EF1.
Tornado alley is the main striking point for tornadoes.
Yes, some strong tornadoes create brief satellite tornadoes that circle the main funnel.
Tornadoes come in all seasons but are most common in spring and summer.
Humans do not cause tornadoes. While climate change may affect tornadoes, it is still uncertain how exactly this will play out.
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Tornadoes most often form in association with cold fronts.
Wind and water.