Hurricanes are tropical storms that need warm water and warm moist air to develop. When the warm and moist air at the surface of the ocean starts to rise quickly, it meets with the cooler air which causes water vapors to condense and start forming clouds and rain drops.

This condensation generates heat which in turn warms the cooler air and this makes way for more warm air from the surface. Hurricanes become weak very quickly once they hit the shore due to the rapid loss of water.