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

A flash flood warning was in place for the western part of Kerr County, and a flood warning was in effect along the Guadalupe River in Hunt Monday.

Michael Coen, chief of staff of FEMA under former presidents Barack Obama and Joe Biden, called on the state to be more proactive in preparing for disasters.

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.

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.

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.

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.

New flash flooding was observed in Lampasas County, Texas amid a warning from the National Weather Service. Footage shows water overflowing at a creek.