You can't. Humans cannot cause tornadoes.
No. A plane cannot start a tornado.
Yes. A tornado can start on a hill just as easily as it would on a plain.
Please tell us what you want to start
The "fire tornado" forms from the fire; it doesn't really matter how the fire starts. Also, a "fire tornado" is more properly called a fire whirl as it technically isn't a tornado.
Humans cannot start tornadoes.
The first known use of the word "tornado" was in 1556.
Yes, in fact a thunderstorm is the only thing that can produce a tornado.
A typical tornado lasts 1-5 minutes.
Twister
Out of its way would be a good start.
Thunderstorms form and start rotating. This rotation can then tighten asn intensify into a tornado.
There was never a "Katrina tornado"Hurricane Katrina first formed on August 23, 2005.