Source regions of tropical cyclones
North Atlantic (western tropical part): Mainly over Caribbean Sea and Gulf of Mexico and Maximum frequency is during August to October. Indian Ocean: Bay of Bengal and Arabian Sea, with two maxima One in May and another in
October-November. South Indian Ocean: The area extending from Madagascar and Reunion islands up to 900
E longitude and Timor Sea in north-western Australia and Mainly during January to March. North Pacific Ocean (eastern tropical part): Over western coastal areas of Mexico and
Central America up to California coast and Maximum occurrence is during August to
October. North Pacific Ocean (western tropical part): This region has maximum occurrence of
cyclones in the world with Maximum frequency in August and September and includes
mainly, Philippines, China sea and areas around Japan. South Pacific Ocean (western tropical part): East coast of Australia, in and around Samoa
and Fiji Islands and around the Coral Sea region and Occur during January to
March.
