Tropical storms of wind speed greater than 74 mph are called different names based on what part of the world the storm is in. In the North-Western hemisphere these are called Hurricanes. In the North-Eastern Hemisphere they are called Typhoons. The east and west hemispheres are separated by the international dateline. Below the equator and in the Indian Ocean large tropical storms are called Tropical Cyclones.
TROPICAL STORM BILL 2015
