Before we get to Sunday, the SPC's day-2 outlook has a 30% risk of hail in southern Texas, from the Rio Grande/ Eagle Pass area up to San Antonio vicinity. The outlook for wind is larger, but it's at 15%.
06z Sunday: dew points of 70F will be in the area of San Antonio with over 3000 J/kg of MUCAPE, with a most-unstable level above the surface. Even with the possibility of reduced shear due to elevated inflow, the 500mb winds will be around 65kt to 80kt, and there is turning of wind (SRH) between 1km and 3km. This is a very impressive CAPE for being 1:00AM-- many hours after sunset.