Humans.
Because only the the energy involved in a thunderstorm or developing thunderstorm is enough to form something as strong as a tornado.
The entire thunderstorm is a cumulonimbus cloud.
No. A supercell is a type of thunderstorm. Most thunderstorms are not supercells.
Yeah... The thunderstorm caused the power to go out. The thunderstorm startled the dog. The weatherman warned that a thunderstorm was on its way.
cumulonimbus cloud
Yes. All tornadoes form in thunderstorms.
Cumulonimbus clouds
Yes. Tornadoes form from the clouds of a thunderstorm.
A cold front advancing
Funny I had the smae question in a school test. A thunderstorm starts to form when water evaporates to form clouds. The warm air over the Earth's surface rises and pushes the clouds higher.
Three basic ingredients are required for a thunderstorm to form: moisture, rising unstable air (air that keeps rising when given a nudge), and a lifting mechanism to provide the "nudge."
Entirely in updrafts. Tornadoes form in the updraft portion of a thunderstorm.