How is the tonardo form? - Answers

A tornado forms from severe thunderstorms, particularly supercells, when warm, moist air at the surface rises and meets cooler, drier air aloft. This creates instability and can lead to the development of a rotating updraft called a mesocyclone. If conditions are right, the rotation tightens and extends downward, forming a visible funnel cloud that can touch the ground and develop into a tornado. Key factors in tornado formation include wind shear, temperature gradients, and humidity levels.