What are cumulonimbus clounds?

Cumulonimbus clouds are towering, dense clouds associated with thunderstorms and severe weather. They are characterized by their anvil-shaped tops and can extend high into the atmosphere, often reaching the stratosphere. These clouds are capable of producing heavy rain, lightning, hail, and even tornadoes, making them a key feature in storm development. Their formation is typically linked to strong convection currents in the atmosphere.