Two-dimensional snapshots of the mid-plane temperature before and during a superoutburst for our fiducial setup, whose parameters are listed in Table 1. The cyan circle indicates the 3:1 resonance and the green line indicates the Roche lobe. The time in days is measured from the beginning of the outburst and one day is equal to 14.1 binary orbits (1.7 h). The simulation ran in a corotating reference frame, with the donor star fixed on the right side.