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Cirrocumulus clouds are in high layers of sky and are formed horizontally. A Cirrocumulus is a high-altitude cirriform cloud, occurring at 20,000-40,000 ft or 6,000-12,000 m.

Cirrocumulus is formed from cirrus or cirrostratus clouds when they are warmed gently from below. The heating process causes air to rise and sink inside the cloud. This is why cirrocumulus is almost always associated with cirrus and cirrostratus. If this is not the case, the cloud is then an altocumulus.