AccuWeather said the private forecasting company and the National Weather Service sent warnings about potential flash flooding hours before the devastation.

Searchers are moving on foot through rough terrain, looking for survivors or victims’ remains in woods, culverts and other places.

Parents are seeking answers as between 23 and 25 girls from Camp Mystic in Hunt, Texas, remain missing after a devastating flood. Those seeking information on loved ones are urged to call the Red Cross.