windstorm - a storm consisting of violent windscyclone - a violent rotating windstorm storm, violent storm - a violent weather condition with winds 64-72 knots (11 on the Beaufort scale) and precipitation and thunder and lightening tempest - (literary) a violent wind; "a tempest swept over the island" whirlwind - a more or less vertical column of air whirling around itself as it moves over the surface of the Earth |