Tropical cyclone

In meteorology, a tropical cyclone is a storm system with a closed circulation in the region of a center of low pressure, fueled by the heat released when moist air rises and condenses. The name underscores their origin in the tropics and their cyclonic nature. They are illustrious from other cyclonic storms such as nor'easters and polar lows by the heat mechanism that fuels them, which makes them "warm core" storm systems.Depending on their power and location, there are various terms by which tropical cyclones are known, such as tropical depression, tropical storm, hurricane and typhoon.

Tropical cyclones can produce enormously high winds, tornadoes and torrential rain, and drive storm surge onto coastal areas. Though the effects on populations can be catastrophic, tropical cyclones have also been known to reduce drought conditions, since they transport enormous amounts of moisture. They carry heat away from the tropics, an important mechanism of the global atmospheric circulation that maintains equilibrium in the earth's troposphere.