Emergency officials are starting to focus on alert systems as they search for answers about how the flash flooding swept away so many.

Nineteen local and state agencies were still combing the Guadalupe River on foot, boat and helicopter and with dogs and drones, Kerrville City Manager Dalton Rice said. He declined to provide an estimate of how many people are still missing,

At least 89 people were dead and dozens were missing after torrential rain caused a massive flood over the Fourth of July weekend, devastating a girls camp along the Guadalupe River.  Camp Mystic said on its website Monday morning that it was mourning the loss of 27 campers and counselors. The camp’s longtime director, Dick Eastland, was also feared dead.