Answer:
It is a vortex of air , approximately 2 to 10 mile in diameter , within a convective storm. In a mesocyclone, air rises and rotates around a vertical axis, usually in the same direction as low pressure systems. They are most often associated with a localised low-pressure region within a severe thunderstorm. It is considered to be one of the strong thunderstorms. The mesocyclone is found within the convective storm in the form of a vortex of air. The air rises and rotates along the vertical axis.