At least 90 people are dead after heavy rain led to devastating flooding in Texas. Kerr County was hit the hardest, with at least 75 deaths, including 27 children. President Donald Trump signed a disaster declaration for the county and the Federal Emergency Management Agency is on the ground there.

The stunning flood that killed more than two dozen campers and counselors along a river at Camp Mystic in the Texas Hill Country was the result of extraordinary rain and walls of water. Nonetheless, experts agree that information about how a camp plans for emergencies is just as important as the lunch menu and the times to go swimming.