In what experts call "Flash Flood Alley," the terrain reacts quickly to rainfall steep slopes, rocky ground, and narrow ...

The flash floods that killed at least 100 people in central Texas last week is only the latest Guadalupe River disaster to ...

At least 161 are still unaccounted for after the July Fourth floods that saw the waters of the Guadalupe rise to historic ...

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

It took just 90 minutes for the river to rise more than 30 feet. A look at the historic flood levels now etched into Central ...

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

Some camps in the region had to be evacuated, and local newspapers described how Camp Mystic was among those cut off from the ...

Teens at the Pot O’ Gold Christian Camp near Comfort, Texas, were swamped by a wall of water as they tried to escape.

The Guadalupe River has a history of deadly flooding. Here is a look over the decades. (AP video Marshall Ritzel/Albee Zhang) ...

When storms roll in, water rushes downhill fast, gaining speed and force as it moves — often with deadly results.

The devastation in Texas Hill Country isn't the first time Americans have mourned the victims of deadly floodwaters.

NPR has compiled a timeline of when local, state and federal officials posted warnings on social media as well as the ...