Flood watches have been issued by the National Weather Service until at least 7 p.m. CT July 6 in Hill Country and along the I-35 corridor. The Weather Prediction Center added that scattered thunderstorms are likely to drop "torrential downpours over sensitive soils across parts of the Texas Hill Country."

Rescuers are combing through the swollen banks of the Guadalupe River in Texas, where the majority of the fatalities were recorded, hoping to find more survivors.