From hurricanes and floods to explosions and tornadoes, Texas has faced some of the nation’s most catastrophic events.

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.

With 101 people still missing after the July 4 flash flood, the focus turns to local lakes, and what may be buried in them.