Maps show how heavy rainfall and rocky terrain helped create the devastating Texas floods that have killed more than 120 people.

For the third straight day, thunderstorms have posed what meteorologists call life-threatening conditions in the Hill Country, where flooding earlier this month killed at least 131 people.

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;

The Texas Hill Country has been notorious for flash floods caused by the Guadalupe River. Here's why the area is called "Flash Flood Alley."

INGRAM, Texas — Search and rescue crews from Mexico were forced to halt their operations on the Guadalupe River in Ingram, Texas today as rain caused water levels to rise, complicating efforts to find victims of the deadly July 4th floods.

New flood warnings have been issued along the Guadalupe River in Texas less than two weeks after flooding killed more than 100 people.

The organizations working together to help the flood victims said that 'no additional in-kind donations (clothing, food, supplies) are needed in Kerrville.' They said the best way to help is with monetary donations.

State and local officials said they did their best to coordinate evacuations and rescues, but better cellphone service might help in future floods.

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.

As the water rises, so does the Kerr County community, especially one man who reunited a brother and sister, swept away in the flood.