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

After hours of waiting and praying in the attic, the water stopped rising and the family was rescued. A first responder helped Matteson, wearing a navy and pink floral dress and quilted white jacket, into the back of a car. Her family survived. Their home was not so lucky.

More than two dozen Mexican rescue volunteers and firefighters have been looking for victims and clearing debris along the Guadalupe River. Others were left waiting for visas and humanitarian permits to cross the border.

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."

On the night the deadly floodwaters raged down the Guadalupe River in Texas, the National Weather Service forecast office in Austin/San Antonio was missing a key member of its team: the warning coordination meteorologist,