What does the term "cumulus" refer to?

The term "cumulus" refers to a cloud type characterized by a puffy, white appearance, often resembling fluffy cotton balls. These clouds typically form due to warm, rising air creating vertical growth. Cumulus clouds are usually associated with fair weather, and they can develop into larger storm clouds when atmospheric conditions are favorable for further development.

Understanding cumulus clouds is essential for recognizing weather patterns. The light, white color indicates that they are composed of water droplets, and their distinctive shape is indicative of buoyant air rising. While they can sometimes develop into cumulonimbus clouds, which are associated with storms, the typical cumulus itself is not a storm cloud but rather a sign of good weather. This unique appearance and formation differentiate cumulus clouds from other types, including those related to rain or more severe weather conditions.