How does a tornado form?
A tornado comes from a thunderstorm which is made out of dry cool air and warm moist air mixing together .
How do tornadoes stop?
Scientists are still tried to find how a tornado stops.

Interesting facts!
A tornadoes highest speed only reaches 160km per hour.
Tornadoes form in the Northern hemisphere.
Tornadoes are considered to be short they only last up to 15 min.

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More info on how tornadoes form!
Tornadoes form inside a longer lasting thunderstorms.
Warm air is drawn up into a storm cloud spinning round as it rises into the atmosphere. The air at the end of the super cell twirls it forms a funnel shape witch moves towards the ground.