A National Weather Service advisory warned of another 2-4 inches of rain falling in the region − and isolated areas could see 9-12 inches.

Places recently hit hard -- like Kerrville, Texas, and Burnet, Texas -- are inside this heightened potential for flash flooding, with any heavy rain and flash flooding that occurs over or adjacent to these areas likely to flow downstream via rivers that run through or nearby these devastated areas.

In the early morning hours of July 4, torrential rains triggered flash flooding in central Texas. At least 130 people were killed, including dozens of children who were at summer camps along the Guadalupe River.