After the Texas flash flood was revealed to have killed at least 51 people and left the search for missing girls still underway, video footage demonstrates just how long it took for the river to overrun a family celebrating July 4.

People in and around central Texas had no idea what was going to happen on a day when Americans celebrate their freedom.

The Guadalupe River overflowed into nearby roads, causing a massive flash flood that terrified many as it rushed across Kerr County.
At least 51 people, including 15 children, have been confirmed dead by the flood, which took around 45 minutes to turn into a catastrophic calamity, according to NBC News.

There were 750 girls attending Camp Mystic south of Kerrville, and rescue crews are searching for up to 20 of them around the clock. Because of the flooding, the camp is currently without WiFi, water, or electricity.