Cyclone is a special form of severe weather condition created out of suddenly formed low atmospheric pressure. Captain Henry Piddington introduced the term cyclone, long back in 1845. Cyclone is distinguished by inward coiling of strong winds. In the northern hemisphere cyclone involves anti clockwise movement of windstorms. The cyclonic movement follows a clockwise pattern in southern hemisphere. There are different types of severe weather conditions coming under the purview of cyclone.

Tropical Cyclone

Tropical cyclone is the most commonly observed form of cyclone. It is developed by substantially low atmospheric pressure at the center. It is accompanied by strong wind and thunderstorms. Tropical cyclone depends on the warm core storm system. Heat mechanism resulting out of moist air and water vapor is the necessary pre requisite for tropical cyclone. Among the other types of cyclones, extratropical cyclone, polar cyclone, subtropical cyclone and polar low are worth mentioning.

Types of Cyclone

Warm core cyclone is initiated by upper level trough. Once the initial disturbance is over its severity depends upon the level of storm. Cold core cyclones on the other hand depend entirely on the level of trough. Extratropical cyclone is a totally different type of atmospheric disaster, which lacks both tropical and polar features. It is observed outside the tropical zone. Extratropical cyclones are primarily centered around mid-latitude.

Polar low is relatively less severe in nature. It is very common in north and south poles. Low atmospheric pressure of short duration results in the creation of polar low. Mesocyclone is a special type of cyclonic whirlpool that accompanies other severe weather conditions like tornadoes, supercells and thunderstorm.