Cirrocumulus Clouds

Cirrocumulus Clouds are cirriform clouds with vertical development. They appear as thin sheets of small white puffs. These are the clouds that create a "mackerel sky". Sometimes they are confused with altocumulus. However, they have smaller individual masses and do not cast  shadows on other elements. They are the least common cloud type.
Concept Mapping Toolkit
Insitute for Human and Machine Cognition
The University of West Florida