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.
The main piece of technology used to track tornadoes is doppler weather radar, which can detect the wind signature of a developing tornado.
No. A tornado is a microscale storm, as very few tornadoes get to be over 2 kilometers in diameter.
There are tornadoes in California, but they are rare and usually weak. The main reason is that cold ocean currents of the California coast tend to stabilize the atmosphere, making it difficult for the strong thunderstorms that produce tornadoes to form as such storms need an unstable atmosphere.
When cold air and hot air mix together it forms a tornado.
No single air mass "causes" tornadoes. This is Tornadoes form within thunderstorms. Thunderstorms form best when there is plentiful warm, moist air. So, a arm, moist air mass is usually present. Significant tornado activity, however, usually results from the thunderstorms that form near the boundaries between air masses. Usually where a warm, moist air mass meets a cooler or drier air mass.
Main averages 2 tornadoes per year.
Weather [hurricanes, tornadoes, floods], volcanoes, earthquakes, avalanches, tidal waves (tsunamis), and fire
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.
The main force that causes a tornado is the clash of warm, moist air from the Gulf of Mexico and cool, dry air from Canada, creating instability in the atmosphere. This can lead to rotating columns of air known as mesocyclones, which can intensify into tornadoes under the right conditions.
Humans do not cause tornadoes. While climate change may affect tornadoes, it is still uncertain how exactly this will play out.
they farted
Tornadoes form in the southern hemisphere for the same reason they form in the northern hemisphere. The mechanics are the same. See the related question for what causes tornadoes
The main threat in a tornado is flying or falling debris.
Smaller tornadoes near a larger tornadoes are often called satellite tornadoes. Smaller vortices within a tornado are called subvorticies or suction vorticies.