Cumulus Clouds

Cumulus clouds are fluffy, white clouds that usually have a flat base and a puffy, rounded top. They are often described as looking like cotton balls or cauliflower. These clouds are formed by the upward movement of warm air, which then cools and condenses into water droplets, creating the characteristic fluffy appearance.

Formation of Cumulus Clouds

When the sun heats the Earth's surface, it warms the air above it. This warm air rises and cools as it ascends. As the air cools, the water vapor in the air condenses to form tiny water droplets, which then cluster together to form a cloud. Cumulus clouds are most commonly associated with fair weather, but they can also indicate potential thunderstorms when they grow larger and taller.

Characteristics of Cumulus Clouds

Cumulus clouds are often seen on sunny days, and they are generally dense and white with a flat base. They can form at low, middle, or high altitudes in the atmosphere, and their appearance can vary depending on the weather conditions. These clouds are known for their vertical development, meaning they can grow taller as warm air continues to rise and cooler air descends.

Study Guide

1. Describe the appearance of cumulus clouds.
2. Explain the formation of cumulus clouds.
3. What weather conditions are associated with cumulus clouds?
4. Where in the atmosphere can cumulus clouds form?
5. What is vertical development in cumulus clouds?

Now that you have learned about cumulus clouds, take some time to observe the sky and see if you can spot these fluffy, white clouds on your own!