How Do Cirrocumulus Clouds Form?

How Do Cirrocumulus Clouds Form?

Cirrocumulus clouds are composed of supercooled water droplets and form through shallow convection within thin labile layers of air. These high-altitude clouds form between 16,600 and 30,000 feet.

These clouds possess a white or cotton-like globular appearance and will typically form together as a mass that has a rippled or wavelike pattern, usually in orderly groupings or formations. Cirrocumuli form sheets or layers that can be very difficult to spot against a blue sky. The presence of these clouds indicates a shallow pattern of upper-air convection and may be an early sign of the formation of a late afternoon thunderstorm.