A detailed investigation of the hourly rainfall patterns accompanying a dissipating hurricane over the southeastern United States demonstrates the pronounced asymmetry in the decay of release of latent heat, the primary energy source of the storm. This appears to be associated with the incorporation into the storm circulation of dry air in the layer from 800 to 400 millibars. This air is first drawn in from the outer portions of the left-front quadrant, then sweeps rapidly around thestorm into the right-rearand right-front quadrants.