Which type of cloud is large and white fluffy, typically indicating good weather?

• A. Cumulonimbus clouds
• B. Cumulus clouds
• C. Cirrus clouds
• D. Stratus clouds

Answer: (B)

Recognizing cloud shapes tells you a lot about the weather. Large, white, fluffy clouds with rounded edges are cumulus clouds. They form when warm air rises and cools, condensing into puffball-like shapes. When these clouds stay small and scattered, they usually indicate fair weather. If they grow taller and darker at the base, they can become storm clouds (cumulonimbus) and bring rain or thunder. Other clouds have different signs: cirrus are thin, wispy high clouds that can hint at changes in the weather; stratus form a low, gray blanket often associated with drizzle or overcast skies.