We have known since the 1970's that organized lines of deep convection (see Smull, this volume) completely replace the undisturbed boundary layer with a layer of lower-tropospheric rain-cooled air. Because the sea surface temperature is only modified slightly, fluxes over the ocean are enhanced as the boundary layer becomes reestablished in this `wake' air; the physics is similar to that of cold air flowing over warm water, with the added complication of rainfall. The recovery time of this `wake' helps determine when the boundary layer is able to support future precipitating cumulus development. These wakes and their associated fluxes are receiving renewed attention, in association with the Tropical Oceans Global Atmospheres (TOGA) program (e.g., Young et al., 1992) and in TOGA's Nov 1992--Feb 1993 Coupled Ocean Atmosphere Response Experiment (COARE, Parsons et al. 1994), which has supplied ample boundary-layer data over the western equatorial Pacific warm pool.