In October and November of 1981, during the U.S.-USSR Weddell Polynya Expedition, we made the first measurements ever of the turbulent and radiative fluxes over the interior pack ice of the Southern Ocean. The daily averaged, surface-averaged sum of these fluxes--the so-called balance, which comprises the conductive, heat storage, and phase-change terms--was positive for all but one day during the cruise: the ablation season had begun. Variability in the sum of the turbulent fluxes produced most of the variability in the balance. And these turbulent fluxes generally correlated with the geostrophic wind--a northerly wind (in off the ocean) transferring heat to the surface, and a southerly wind removing it.