The search for survivors in the wake of catastrophic and historic flooding in Texas has entered its fifth day as the death toll surpasses 100 with dozens of people still missing.

In the early hours of July 4, the only sound many of the vacationers along the banks of the Guadalupe River would have heard was pounding rain and thunder. They didn’t get any official warning of the rapidly rising waters that ultimately proved deadly to dozens of people swept away in central Texas flash floods.