What does waterspout mean?
A waterspout is a narrow, rotating column of air occurring over water. The most familiar kind develops from the same storm systems that produce tornadoes and may descend from a cumulonimbus cloud, often appearing as a visible funnel extending toward the sea. Fair-weather waterspouts can also form over relatively calm water, especially beneath cumulus clouds, though they are generally less intense. The word has a dramatic maritime quality and is used in meteorology, maritime safety reports, and descriptions of coastal or marine weather. Although commonly associated with weak tornadoes, a waterspout is distinguished by its setting over water and may produce spray, sudden gusts, and sharply shifting winds. The broader term is sometimes used for vortices over the sea, regardless of whether they form during a thunderstorm. Compared with the general word tornado, waterspout is more specific and evokes the sea, coastal conditions, and the visual spectacle of a funnel or rotating spray column.
nounA rotating column of air occurring over water, particularly a relatively weak tornado associated with a cumulonimbus cloud. The term is also used for fair-weather vortices that form over the sea without a thunderstorm.
- A rotating vortex of air over water, especially a weak tornado connected to a cumulonimbus cloud; the term also includes fair-weather vortices over the sea.
"A waterspout swept across the bay as the fishermen watched from the shore."
"The crew spotted a waterspout approaching the coast and took shelter behind the engine house."
"An early travel account described a waterspout as a towering column of rotating cloud and spray over the ocean."
The regular plural takes -s; use an indefinite article before the plural when referring to more than one: waterspouts, not a waterspouts.
"Several waterspouts appeared over the lake during the storm."
A waterspout can form under a fair-weather cumulus cloud—dramatic to watch, but usually far gentler than a land tornado.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of waterspout
The word is an English compound of water and spout, both of which are Germanic in origin: water descends from Old English wætor, while spout belongs to the Old English spūtan family associated with gushing or emitting a stream. The compound is recorded from the early seventeenth century and originally referred to a rotating meteorological phenomenon observed over the sea. Its meaning developed through the older English practice of describing conspicuous funnels and vortices as spouts.
Related word forms
How waterspout is actually used
The word is standard in meteorology, maritime reporting, and general description. It covers both storm-associated waterspouts and comparatively weak fair-weather vortices, so it is not always interchangeable with tornado.
Easily confused with waterspout
A waterspout is a rotating column of air occurring specifically over water, whereas a tornado is the usual designation for one occurring over land, although either kind can cross water.