Waterspout

A waterspout is basically a tornado that touches a body of water. Fair weather waterspouts are less severe but far more common, and are similar in dynamics to dust devils and landspouts (http://en.wikipedia.org/wiki/Tornado#True_tornadoes). They form at the bases of cumulus congestus cloud towers in tropical and semitropical waters ( http://en.wikipedia.org/wiki/Tornado#True_tornadoes). They have relatively weak winds, smooth laminar walls, and typically travel very slowly, if at all (http://en.wikipedia.org/wiki/Tornado#True_tornadoes). They occur most commonly in the Florida Keys (http://en.wikipedia.org/wiki/Tornado#True_tornadoes). Waterspouts don't have to come directly from a supercell thunderstorm, like a normal tornado does.