and that is because they have a very good mesocyclone going on within that storm and within a supercell like this, you can end up with damaging winds, large hail and tornadoes. Once you start to ...

Ten of them resulted from the same supercell storm and mesocyclone (a rotating updraft). It is common for large tornadoes in the Great Plains to have several smaller whirls called suction vortices ...

A supercell is a thunderstorm that is characterized by the presence of a mesocyclone ... also classified as severe thunderstorms, and tornadoes most commonly form from these kinds of storms.

If a storm with these criteria is imminent, your local Weather Service office will issue a severe thunderstorm warning or a tornado warning ... component: the mesocyclone. A mesocyclone (or ...