Cirrocumulus floccus (Cc flo) - Vincent 1903, CCH 1953

Very small cumuliform tufts, the lower parts of which are more or less ragged. The apparent width of each tuft is always less than 1°, when observed at an angle of more than 30° above the horizon. Floccus develops due to instability at that level. Cirrocumulus floccus sometimes evolves from Cirrocumulus castellanus, the base of the latter having dissipated.