A hurricane requires warm ocean water to begin and grow. As air warms over the warm water, it rises and then condenses and forms large cumulonimbus clouds. As the air rises from below, an area of low pressure is formed and new air rushes in. This air also warms, rises and condenses, adding to the storm. Because of the Earth's rotation and the Coriolis effect, the storm begins to spin. The warm ocean water continues to provide the energy for the storm to grow stronger and stronger.
However, as soon as the hurricane reaches land, the energy from the warm ocean water is gone and the land causes friction. Without the energy from the warm water continuing to fuel the hurricane, it runs out of energy. The friction from the land reduces the surface winds as well, contributing to the hurricane's demise.
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