Flash floods surged through in the middle of the night, but many local officials appeared unaware of the unfolding catastrophe, initially leaving people near the river on their own.

Virginia Hollis is one of the girls missing from Camp Mystic, according to a social media post from Bregman. She was staying in Cabin Twins 2 when floodwaters from the Guadalupe rushed through the campgrounds. Ellen is a missing Camp Mystic camper, according to her family.

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.