When storms roll in, water rushes downhill fast, gaining speed and force as it moves — often with deadly results.

We witnessed a young boy screaming as the waters rushed him downstream. It was the most helpless I've ever felt.'

KERR COUNTY, Texas – The Hill Country flood, marked by unprecedented rainfall and unfortunate timing, has become one of the deadliest floods in Texas history, with its swift waters catching many off guard in the dead of night.