Clouds are classified into several basic shapes, primarily defined by their appearance and formation process. The main categories are cirrus, cumulus, and stratus, with each category representing a distinct cloud type.
- Cirrus clouds are wispy and feathery, appearing high in the atmosphere. They are composed of ice crystals.
- Cumulus clouds are puffy and cotton-like, often appearing in fair weather. They form when warm, moist air rises and cools.
- Stratus clouds are flat and layered, covering large areas of the sky. They often bring drizzle or light rain.
While these three categories are the most fundamental, there are other types of clouds like nimbus, which refers to rain-producing clouds. Additionally, some cloud types combine characteristics of two or more basic shapes, creating a diverse range of appearances.