Stratocumulus clouds

Carlye Calvin/UCAR

Stratocumulus clouds are low, lumpy, and gray. Sometimes they line up in rows and other times they spread out. Only light rain (usually drizzle) falls from stratocumulus clouds. To distinguish between a stratocumulus and an altocumulus cloud, point your hand toward the cloud. If the cloud is about the size of your fist, then it is stratocumulus.