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.

One of Texas' most popular rivers flooded over the weekend and contributed to Texas' catastrophic flooding that claimed over 80 lives, including two dozen children at Camp Mystic. Here's what to know about the layout of the river and the role it played in one of the state's deadliest flash floods in modern history.

On "Today with Jenna and Friends," Jenna Bush Hager opened up about sending her kids off to summer camp in Texas after last week's tragic flooding.

Former first lady Laura Bush taught drama at the camp, which has operated for a century. Jenna Bush Hager teared up on Monday while sharing her personal connection to the devastating floods in Central Texas.

Hager and her husband, Henry Hager, send their own three kids to summer camp in Texas. Texas native Jenna Bush Hager shared an emotional reaction on Today to the devastation that occurred over the weekend when flash floods pounded the central part of the state,

Heavy rain poured over the Texas Hill Country on Independence Day, with the flooding causing more than 100 deaths.Here's a timeline of the disaster:Tuesday, July 2On July 2, the Texas Division of Emergency Management said it activated "state emergency response resources in anticipation of increased threats of flooding in parts of West and Central Texas heading into the holiday weekend.

Experts question whether President Donald Trump's budget cuts to the National Weather Service led to a lack of early warning for Texas floods.