In what experts call "Flash Flood Alley," the terrain reacts quickly to rainfall steep slopes, rocky ground, and narrow riverbeds leave little time for warning.

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."

I thought of that scene recently while watching a video of a similar section of the river. In one, sunbathers are lazing in a few inches of water; in the next, all you can see is a brown, foaming, angry current.

A week after catastrophic floods in Central Texas, key questions remain unanswered about how state and local officials prepared for and responded to the disaster.

Flash floods in Texas have killed at least 107 people over the Fourth of July weekend, with more than 160 still missing.

Satellite images show the damage left behind after floodwaters rushed through Camp Mystic, Camp La Junta and other summer camps on July 4.

It’s been seven days since the flooded Guadalupe River invaded homes and summer camps in the early morning hours. The search for the missing continues.

Volunteers continue search efforts along the Guadalupe River after the Central Texas flooding, with some returning home after a week of emotional and exhausting work. Despite departures, new volunteers are stepping in,

Camille Santana tragically lost her life during the Fourth of July floods that swept through Central Texas. Three other members of her family remain missing.

It’s hard to believe the devastation,' Trump said. 'Trees that are 100 years old just ripped out of the ground. I've never seen anything like this, and I've seen a lot of bad ones.'

Heavy rains in Texas Hill Country alleviated drought, but Medina County still faces exceptionally dry conditions.

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.