Question

Why do hurricanes form only over warm oceans?

Answer 1

Without warm water you would not get enough energy.

Explanation:

Hurricanes are massive storms with 200 times more energy than every electrical generation station on the planet. The source of that energy is the sun, and to get that energy into the atmosphere you need water.

Energy from the sun changes liquid water into water vapor. This process stores energy in the water molecules (latent heat). When the water vapor rises in the sky and cools it condenses back into liquid water and releases that energy. So in order to get the massive amounts of heat energy into the atmosphere to generate a hurricane you need warm water (over 26 degrees C).