mostly yes put mostly in severe thunderstorms
Because only the the energy involved in a thunderstorm or developing thunderstorm is enough to form something as strong as a tornado.
Tornadoes come from the energy released in a thunderstorm. As powerful as they are, tornadoes account for only a tiny fraction of the energy in a thunderstorm.
Tornadoes are produced by complex interactions of a thunderstorm's main updraft and other air currents in and near the storm. Only a thunderstorm can supply the necessary power in a small enough area.
Because a thunderstorm is necessary for a tornado to form, but only a minority of thunderstorms produce tornadoes storms are more common.
Tornadoes typically form within thunderstorms as a result of strong updrafts and wind shear. It is rare but possible for tornadoes to form without a thunderstorm, such as in the case of landspout tornadoes which develop from different processes, like boundaries of air masses colliding.
No, tornadoes typically form within severe thunderstorms that have strong updrafts and rotating air. The intense vertical motion within a thunderstorm is necessary for creating the conditions that can lead to tornado formation.
No, they can form any time of the year. The right conditions for tornadoes are just more common during tornado season.
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.
Tornadoes can only form during thunderstorms.
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.
A thunderstorm is any rainstorm that produces thunder and lightning. They can sometimes cause damage but not always. A tornado is a violently rotating column of air extending from the base of a thunderstorm to the ground. Tornadoes must produce winds strong enough to produce damage in order to be considered tornadoes. Only about one thunderstorm in every thousand produces a tornado.
Not generally. Tornadoes can only form from thunderstorms. However, many tornadoes do form near the edge of a thunderstorm and in some cases the ground level circulation of the tornado can drift out from under the storm base, even though the tornado still connects to the parent storm. There are some whirlwinds, namely dust devils, that form on clear days and look like tornado. But these whirlwinds are not actual tornadoes.