Storm

A violent disturbance of the atmosphere, attended by wind, rain, snow, hail, or thunder and lightning; hence, often, a heavy fall of rain, snow, or hail, whether accompanied with wind or not.

A violent agitation of human society; a civil, political, or domestic commotion; sedition, insurrection, or war; violent outbreak; clamor; tumult.

A heavy shower or fall, any adverse outburst of tumultuous force; violence.

A violent assault on a fortified place; a furious attempt of troops to enter and take a fortified place by scaling the walls, forcing the gates, or the like.

To assault; to attack, and attempt to take, by scaling walls, forcing gates, breaches, or the like; as, to storm a fortified town.

To raise a tempest.

To blow with violence; also, to rain, hail, snow, or the like, usually in a violent manner, or with high wind; -- used impersonally; as, it storms.

To rage; to be in a violent passion; to fume.

a violent weather condition with winds 64-72 knots (11 on the Beaufort scale) and precipitation and thunder and lightning

rain, hail, or snow hard and be very windy, often with thunder or lightning; "If it storms, we'll need shelter"