Have You Ever Seen A Thunderstorm Spin?

Have you ever heard the term a "rotating" supercell thunderstorm? All tornadic supercells will rotate, but not all rotating supercells produce tornadoes.   Just by looking at a rotating supercell thunderstorm, you can tell it's different than the normal thunderstorms you see in the summer.   You know, those that offer a brief respite of rain over your parched lawn, then...