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No, a tornado cannot form without a thunderstorm. A tornado needs the crossing winds of two air masses to provide rotation in order for a tornado to form. Tornadoes do not form from convection thunderstorms, but only from air mass thunderstorms.

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What tornado that is not a supercell?

No tornado is a supercell. A supercell is a type thunderstorm that produces most tornadoes. Tornadoes that form without the aid of the mesocyclone of a supercell are usually landspouts.


Can a tornado form in a thunderstorm?

Yes. All tornadoes form in thunderstorms.


Why do tornadoes form by clouds?

Because only the the energy involved in a thunderstorm or developing thunderstorm is enough to form something as strong as a tornado.


What is something like tornado?

A dust devil resembles a tornado on some levels, but is not as strong and does not form from a thunderstorm.


Why is there a clear after a tornado?

The weather usually clears after a tornado because most tornadoes form in the rear portion of a thunderstorm.


What is a tornado and when may it form?

A tornado is a violently rotating columns of air in contact with the base of a thunderstorm and the ground. Tornadoes are usually produced by a type of strong thunderstorm called a supercell.


Is a tornado caused by a thunderstorm?

Yes. Tornadoes form during severe thunderstorms.


Can a thunderstorm cause a tornado?

Yes, a severe thunderstorm can create the conditions necessary for a tornado to form. Thunderstorms with strong updrafts and rotation can produce tornadoes when other factors align, such as atmospheric instability and wind shear.


What is a tornado is usually produced by?

Tornadoes usually form from a kind of thunderstorm called a supercell.


Why do tornadoes need thunderstorms to create?

In simple terms, only a thunderstorm can concentrate the energy needed to form a tornado. Most tornadoes from from a thunderstorm with a rotating updraft. Others develop from interactions between turbulence and a non-rotating updraft. Other varieties of whirlwind can develop without thunderstorms, but they are not nearly as strong as tornadoes.


Does there need to be clouds to have a tornado?

No, tornadoes can occur with or without clouds present. Tornadoes are a column of rapidly rotating air in contact with the ground, typically formed from severe thunderstorms. Clouds can indicate the presence of the necessary atmospheric conditions for tornado formation, but they are not a requirement.


What is the difference between weather warning and weather watch?

A tornado/thunderstorm watch means that weather conditions are good for tornado/thunderstorm. A tornado/thunderstorm warning, however, means that conditions are extreme and a thunderstorm or tornado is likely. Conditions for either storm are very good at this stage.