Tropical cyclones in South China Sea, Bay of Bengal and Gulf of Mexico

A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure centre, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain. Depending on its location and strength, tropical cyclones are referred to by names such as typhoon (South China Sea), cyclone (Bay of Bengal), and hurricane (Gulf of Mexico). 

The tropical cyclones originate in the tropical region in both hemispheres. Formation of tropical cyclone needs warm water bodies where temperature should be more than 25°C. Continuous supply of warm moisture is needed for condensation in upper atmosphere which releases more latent heat of condensation. 

This process will result into vertical column of low pressure. For the formation of this vertical column, calm wind condition is needed. These requisite conditions are present in South China Sea, Bay of Bengal, Gulf of Mexico and other tropical oceanic regions.