Most of the hurricanes across the Atlantic rotate towards the U.S. and many times the Caribbean falls victim to it.
In the case of hurricanes that form in the Atlantic Ocean, the wind blowing westward across the Atlantic from Africa provides the necessary ingredient. As the wind passes over the ocean's surface, water evaporates (turns into water vapor) and rises.
Some times the hurricanes make a complete U-turn and avoid the Caribbean and U.S. almost completely. But when it doesn't, Hurricane winds along with torrential rain can prove to reek havoc on the poor islands.
