Stratocumulus drizzle area and intensity are modulated by a combination of the diurnal cycle and mesoscale cloud patterns. Data obtained from the NOAA Ship Ronald H. Brown and the WHOI IMET buoy in the Sc region off the coast of Peru during the 2001 EPIC Stratocumulus cruise in combination with satellite imagery show that more active drizzle periods were more commonly associated with broken clouds rather than unbroken clouds. The detailed relationships among cloud fraction and drizzle area and intensity are examined. Characterization of the spatial inhomogeneities in the cloud and drizzle field may help refine satellite retrievals of liquid water path and precipitation, and may suggest improved large-scale model parameterizations of subgrid horizontal microphysical and radiative variability in stratocumulus-capped boundary layers.