Clouds from which Cirrocumulus may form
Cirrocumulus often forms evolves the:
- Transformation of Cirrus (Cc cirromutatus)
- Transformation of Cirrostratus (Cc cirrostratomutatus)
- Decrease in size of the elements of a patch, sheet or layer of Altocumulus (Cc altocumulomutatus)
Persistent contrails (Ci homogenitus) can, over a period of time and under the influence of strong upper winds, transform into Cirrocumulus (Cc homomutatus).