Cumulus clouds are fluffy, white clouds with a flat base that are often associated with fair weather. They are formed by the vertical movement of air, typically through convection, and are often found at lower altitudes.
Cumulus clouds are formed when warm air rises and cools as it reaches higher altitudes. As the air cools, water vapor in the air condenses to form water droplets, which cluster together to form the puffy, cotton-like appearance of cumulus clouds.
These clouds have a distinct cauliflower-like shape with a flat base and a rounded, billowy top. They are often white or light gray in color and can appear in various sizes and shapes.
Cumulus clouds are generally associated with fair weather, but they can also grow into larger, more developed clouds such as cumulonimbus, which may bring thunderstorms and heavy rain.