How does twister start?

Answer 1

The process of tornado formation starts when rolling air called wind shear gets taken into the updraft of a thunderstorm. This turns the storm into a supercell, a storm with a strong, rotating updraft called a mesocyclone. Under the right conditions a downdraft can descend from the back of the storm, wrap around the mesocyclone, and force it into a tighter more intense vortex: the tornado itself.

Answer 2

A twister, also known as a tornado, typically forms when warm, moist air collides with cool, dry air, creating instability in the atmosphere. This sets off a swirling motion that can intensify into a tornado under the right conditions, such as strong wind shear. Once the rotation occurs, it can be further strengthened by updrafts, leading to the development of a tornado.