Many questions remain about how storms caught off guard an area prone to flooding and led to the second deadliest flood in Texas history. Here’s what we know. Flooding death toll increases to 132;

This part of Texas Hill Country is known for flash floods. Why were so many people caught off guard when the river turned violent?

Eight-year-old girls at sleep-away camp, families crammed into recreational vehicles, local residents traveling to or from work. These are some of the victims.

A large percentage of people still unaccounted for were probably visiting the area, Kerr County Judge Rob Kelly said.

Torrential rain flooded creeks, streams and the Guadalupe River, where the water swelled more than 26 feet in 45 minutes.

With more than 170 still missing, communities must reconcile how to pick up the pieces around a waterway that remains both a wellspring and a looming menace.

Plans to develop a flood monitoring system in the Texas county hit hardest by deadly floods were scheduled to begin only a few weeks later.