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

At least 27 people died after Friday's flash flood in Kerr County, according to county and state leaders. It's unclear how many people are still missing.

Flash floods in central Texas have led to at least 27 fatalities, including nine children, with many still missing, particularly from Camp Mystic. Patrick Keely/via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT. NO RESALES. NO ARCHIVES. (Patrick Keely via REUTERS)