Tropical cyclones derive their extraordinary energy

Position 1: Once the storm moves over cooler water or makes landfall, however, its energy supply is cut off and it rapidly weakens.

Position 2: This process draws in more warm, humid air at the surface, establishing the self-reinforcing circulation that defines a mature cyclone.

Position 3: Tropical cyclones derive their extraordinary energy from the warm surface waters of the ocean.

Position 4: Wind speeds intensify as long as sea-surface temperatures remain above approximately 26 degrees Celsius and wind shear stays low.

Position 5: As moist air rises rapidly over these heated surfaces, it cools and condenses, releasing latent heat that further fuels the storm's updrafts.