What primarily fuels the development of tropical cyclones?

Tropical cyclones are primarily fueled by warm sea water because it serves as the energy source that drives the storm's formation and intensification. When sea surface temperatures are above approximately 26 degrees Celsius (about 79 degrees Fahrenheit), they provide enough heat and moisture to the atmosphere. This warmth enables the evaporation of water, which then rises and cools, creating low pressure at the surface. As the warm, moist air rises, it draws in more air from the surrounding areas, which leads to the development and strengthening of a cyclone.

In contrast, cold sea temperatures hinder the evaporation process, reducing the amount of heat and moisture available to fuel the cyclone. High atmospheric pressure is associated with stable weather conditions, which do not support cyclone formation. Similarly, low humidity levels in the atmosphere can inhibit the necessary evaporation, making it difficult for cyclones to develop. Therefore, warm sea water is the critical factor in the genesis and intensification of tropical cyclones.