By international agreement, what is the general term for all hurricane-type storms that originate over tropical waters?
What tropical cyclones are called doesn't necessarily depend on the basin, but rather, the longitude where the storm is. Storms in the Atlantic and Eastern Pacific Oceans are called hurricanes.. The National Hurricane Center (NHC) is responsible for these storms.Storms that form in the Western Pacific, or that travel west of the International Date Line (180 West longitude) are called typhoons..Storms in the Indian ocean are called cyclones..To make matters more confusing, we sometimes refer to hurricanes in the Atlantic as cyclones too -- that's because in a broad sense they are. In weather, a cyclone just means that a storm has a closed circular and counterclockwise motion.torms that form in the Western Pacific, or that travel west of the International Date Line (180 West longitude) are called typhoons.. Storms in the Indian ocean are called cyclones..