Here's why:
* Cumulus: This part of the name refers to the towering, puffy shape of the clouds. They form as warm, moist air rises.
* Nimbus: This part signifies that the clouds are producing precipitation, in this case, heavy rain and sometimes even hail.
How they form and spiral:
* Rising Warm Air: The warm, moist air at the surface of the ocean is drawn upward by the low pressure at the hurricane's center.
* Cooling and Condensation: As the air rises, it cools, causing the moisture to condense into water droplets. This creates the towering cumulonimbus clouds.
* Rotation: The rotation of the Earth and the low pressure at the hurricane's center cause the rising air to spin, creating the characteristic spiral pattern of the clouds.
These swirling cumulonimbus clouds are a key feature of hurricanes, producing the intense winds, heavy rain, and storm surge that make these storms so destructive.
