Tropical cyclones can only form over water. There is not enough hydrologic energy over a desert to begin the cyclonic action.
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No, tropical cyclones require warm ocean waters to develop and strengthen. Hot deserts do not provide the necessary moisture and energy for tropical cyclone formation.
A storm system called a 'Tropical Cyclone' also known as a 'Hurricane' if it forms over the Atlantic, a 'Cyclone' if it forms over the Indian ocean and a 'Typhoon' if it forms over the Pacific.
Cyclones originate over warm ocean waters near the equator. As the warm air rises and cools, it condenses into clouds and releases heat energy, fueling the formation of a cyclone.
As a cyclone moves over land, it loses its main energy source of warm ocean water, causing it to weaken. The friction from the land also disrupts the structure of the cyclone, causing it to break apart and dissipate more quickly than if it were over water.
The smallest tropical cyclone on record was Tropical Storm Marco in 2008, which had a diameter of about 17 miles (27 km) across. Despite its small size, Tropical Storm Marco did not intensify into a hurricane and dissipated over the open Atlantic Ocean.
The "eye" is a calm and clear area at the center of a tropical cyclone, surrounded by the eyewall where the strongest winds and heaviest rainfall occur. The eye typically has light winds and partly cloudy skies, but can vary in size from a few kilometers to over 100 kilometers wide.