How do you identify a cumulus cloud?

Answer 1

Cumulus clouds are puffy, billowing clouds rather than stratified, and can exist as well-defined within a mass of otherwise clear air. Rapid heating can cause towering cumulus clouds or may create the related forms known as cumulonimbus (thunderstorm) clouds.

Answer 2

Cumulus clouds are large, white, fluffy clouds with a flat base. They often have a distinct cauliflower-like appearance and are usually seen on fair weather days. They are commonly found at low to middle altitudes in the sky.