Landspout

A landspout is a small, weak tornado that is not formed by a storm-scale rotation. A landspout is generally weaker than a common supercell tornado and is not associated with usual tornado things such as a wall cloud or mesocyclone. It is usually seen beneath cumulonimbus clouds or towering cumulus clouds and it is the land "version" of a waterspout, as the name points out.
==References==
*Landspout/Waterspout:
*Landspout: