A small atmospheric vortex appearing in clear, dry conditions, made visible by swirling dust picked up from the ground.
A true tornado that passes over a body of water.
A whirlwind that forms over water, not associated with a mesocyclone of a thunderstorm (contrary to a true tornado).
A plume of water rising from the surface of a body of water as the result of an impact or explosion.
A channel through which water is discharged, especially from the gutters of a roof.