Hurricanes:
* Have massive clouds: Hurricanes are characterized by their towering, swirling clouds that extend high into the atmosphere. These clouds are responsible for the heavy rain, strong winds, and storm surges that define a hurricane.
* Clouds are part of the storm: The clouds are an integral part of the hurricane's structure, fueled by the warm, moist air rising from the ocean surface.
Tornadoes:
* Form within existing clouds: Tornadoes don't create their own clouds. Instead, they form within existing thunderstorms, usually cumulonimbus clouds (thunderheads).
* Visible funnel cloud: The tornado itself is a rotating column of air that often becomes visible as a funnel cloud, which is essentially a condensation funnel formed by the rapidly spinning air drawing in moisture.
Key difference:
While both hurricanes and tornadoes are associated with clouds, hurricanes are made of clouds, while tornadoes form within existing clouds.