The data also highlights critical risks in other areas along the Guadalupe River in Kerr County, revealing more than twice as many Americans live in flood prone areas than FEMA's maps show.

At least 27 campers and counselors were killed at Camp Mystic during the devastating Texas floods. Some are still missing.

Kerr County had discussed buying such things as water gauges and sirens after previous flood disasters. But as with many rural Texas counties, cost was an issue.

Follow for live updates in the Texas flooding as the death toll rises to 120, as rescue operations start to shift to recovery phase

New data reveals FEMA missed major flood risks at Camp Mystic, where over two dozen died in the Texas flood. And, U.S. measles cases hit the highest level in over three decades.

Kerr County repeatedly failed to secure a warning system, even as local officials remained aware of the risks and as billions of dollars were available for similar projects.

These maps and charts show the scale and intensity of the Hill Country floods and highlight Camp Mystic’s proximity to high-risk flood zones.

As a climate scientist who calls Texas home, I can tell you that the Hill Country of Texas is no stranger to flooding. Meteorologists often refer to it as “Flash Flood Alley” because of its steep terrain, shallow soils, and its history of sudden and intense rainfall.

Flash floods last week in Texas caused the Guadalupe River to rise dramatically, reaching three stories high in just two hours