At Camp Mystic, a Christian summer camp in Hunt, Texas, where officials are grieving the loss of 27 children and counselors, belongings of the young campers were strewn about the flooded floors of a dormitory, while other items, including a pink backpack and a Camp Mystic T-shirt, were found along the bloated Guadalupe River, photos show.

"Camp Mystic is grieving the loss of 27 campers and counselors following the catastrophic flooding on the Guadalupe River," the camp said in a statement.

The National Weather Service began sending flash flood warnings that should have triggered cellphone alerts a little after 1 a.m., while local officials began posting on Facebook about four hours later.

Barry dissipated as a tropical depression four days before its remnants helped trigger the deadly Texas flash flood. And it's far from the only example of deadly inland flooding we've seen.