stratocumulus cloud

A layer of patches composed of laminae or globular masses arranged in groups, lines or waves and having a soft, grey appearance; very often the rolls are so close together that their edges join and give the undersurface a wavy character; the process of formation (cumulogenesis) involves the spreading out of the tops of cumulus clouds, the latter having disappeared; $< 2000 m$ ; usually warmer than $−5 °C$ ; vertical velocities usually $< 0.1 m s −1$ .

Source:

PAC, 1990, 62, 2167 (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2180

NOTE:

An error in this entry in the printed version of the Compendium (omission of a minus sign) has been corrected.