Waterspout Phenomenon

A Waterspout is a rotating column of air and water mist that forms over a body of water, usually under developing cumulus clouds.

There are two main types:
Fair-weather waterspouts
Form in relatively calm weather.
Usually weaker than tornadoes.
Common in tropical and subtropical waters.

Tornadic waterspouts
Essentially tornadoes that occur over water or move from land to water.
Associated with severe thunderstorms.
Can be much stronger and more dangerous.

How they form:
Warm water heats the air above it.
Rising air creates instability.
Rotation develops and stretches upward toward a cloud base.
Condensation and water spray make the funnel visible.

Hazards:
Dangerous to boats and ships.
Strong winds, rough seas, lightning, and sudden weather changes.
Can occasionally move ashore and cause damage.

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