Woman films horrifying minute-by-minute breakdown of just how quickly Texas flash flood happened

Video footage shows exactly how long it took for the Texas flash flood to overwhelm a family celebrating July 4, after it was confirmed to have resulted in at least 51 deaths and an ongoing search for missing girls.

On a day where Americans celebrate their independence, little did those in and around central Texas know what was about to happen.

A giant flash flood sparked terror as it swept through Kerr County after the Guadalupe River spilled over into neighboring paths.

It has been confirmed that the flood, which took around 45 minutes to become a devastating disaster, has killed at least 51 people, including 15 children, NBC News reports.

Rescue teams are working around the clock to find up to more than 20 children, who were among 750 girls attending Camp Mystic outside of Kerrville. The camp is currently without power, water or WiFi due to the floods.

The flood took place on July 4 in and around central Texas (RONALDO SCHEMIDT/AFP via Getty Images)

However, the Texas Lieutenant Governor Dan Patrick noted that the missing children are not necessarily ‘lost’, adding: “They could be out of communication.”

As many watch in horror as the true extent of the devastation caused by the flood is uncovered, footage of the beginning of the disaster has circulated on social media for the world to see.

Previously, a timelapse video posted on Twitter showed the full magnitude of the deadly waters as it turned a clear road into a river within minutes.

But now, a TikTok video of a family enjoying the outdoor celebrations has been released, and it has left a lot of people criticizing President Donald Trump in the process.

Starting at 5:43pm, the video shows a small body of water, akin to a stream as the family chatters around it, before it cuts to 6:11pm, showing a steadily flowing river in the same area.