Gustnado Weak and usually short-lived, a gustnado forms along the gust front of a thunderstorm, appearing as a temporary dust whirl or debris cloud. Landspout Generally weaker than a supercell tornado, a landspout is not associated with a wall cloud or mesocyclone . It may be observed beneath cumulonimbus or towering cumulus clouds and is the land equivalent of a waterspout. Waterspout Resembling a tornado, a waterspout is usually less intense and causes far less damage. Rarely more than fifty yards wide, it forms over warm tropical ocean waters, although its funnel is made of fresh water from condensation , not salt water from the ocean.
Waterspouts usually dissipate upon reaching land.
A directional merging or piling up of winds that can result in upward forcing, assisting in storm developement. When one or more vortices are present at the same time in a tronado. Multiple-vortex tornadoes can be especially damaging. The process by which atmospheric water vapor liquefies to form fog, clouds, or the like, or solidifies to form snow or hail.