Explanation:

 In the arabian sea, bay of bengal, and indian ocean north of the equator, the storms are called "cyclones." they are also called "cyclones" south of the equator in the indian and pacific oceans. In the pacific ocean, the same storms are called "hurricanes" if they form east of the international date line and north of the equator. Staying north of the equator and going west of the international date line, that lies west of hawaii, the storms are called "typhoons."