A significant problem confronting vapor canopy theorists is the energy load on the atmosphere during the collapse of the canopy. Previous attempts to quantify this energy load have indicated that atmospheric temperatures would rise much too high to sustain life. However, up to this point the regulating effect of the ocean during canopy collapse has not been addressed. This investigation develops a more detailed energy balance than used in earlier work and also includes a simplified model to account for ocean-atmosphere coupling. Assuming that the entire energy load is released during the 40 days of the Flood, the simplified model predicts that the upper bound for canopy precipitable water is two feet.