Air masses of low density tend to rise because they are less strongly affected by gravity than cool air masses. Rising warm air masses is the primary cause of convection on earth. Thunderstorms are a product of convection. Tornadoes are a product of thunderstorms.
Gravity is present in a tornado, however, for objects that are not too heavy the upward flow of air in a tornado can overpower gravity. Tornadoes are dependent on convection, which requires gravity, but tornadoes themselves are a thermodynamic rather than gravitational event.
No. Tornadoes do not damage the atmosphere.
Nearly all tornadoes in the southern hemisphere do. However in the northern hemisphere most tornadoes rotate counterclockwise. A small percentage of tornadoes rotate opposite of what is normal for their hemisphere. These are called anticyclonic tornadoes.
Tornadoes in the southern hemisphere spin clockwise with the exception of rare anticyclonic tornadoes.
Tornadoes do not create anything; they only destroy.
Gravity waves have nothing to do with tornadoes.
Gravity is present in a tornado, however, for objects that are not too heavy the upward flow of air in a tornado can overpower gravity. Tornadoes are dependent on convection, which requires gravity, but tornadoes themselves are a thermodynamic rather than gravitational event.
Tornadoes in the U.S. are called tornadoes.
Tornadoes are sometimes divided into "weak" tornadoes "strong" and "violent" tornadoes. Weak tornadoes are those rated EF0 and EF1. Most tornadoes are weak. Strong tornadoes are those rated EF2 and EF3. Violent tornadoes are those rated EF4 and EF5. They are the rarest of tornadoes, only about 1% of tornadoes are this strong.
It depends on what you mean by extreme. Tornadoes of EF4 and EF5 tornadoes, however are often referred to as violent tornadoes. These account for about 1% of all tornadoes.
Tornadoes don't get named, Hurricanes do, but Tornadoes don't.
No. Tornadoes are dangerous.
Florida frequently has tornadoes, though several states have more tornadoes annually.
Yes, some strong tornadoes create brief satellite tornadoes that circle the main funnel.
Antarctica is the continent that does not have tornadoes. Tornadoes typically form over land, so the cold and uninhabited nature of Antarctica makes it unlikely for tornadoes to occur there.
Tornadoes are often referred to simply as "tornadoes" or "twisters."
There is nothing to be "done" about tornadoes. Tornadoes are a natural weather event.