A cyclonic storm is a type of storm system characterized by a low-pressure center and strong winds that rotate around it. The most common types of cyclonic storms are typhoons, tornadoes, gales, and windstorms. A TYPHOON is a tropical cyclone with sustained winds of at least 74 mph, while a TORNADO is a violently rotating column of air that forms a funnel cloud and can cause significant damage. A GALE is a strong wind with sustained speeds of between 39 and 54 mph, and a WINDSTORM is a storm with sustained winds of at least 55 mph.