Flash floods happen when heavy rains unleash more water than the ground can absorb, causing that water to pile up and flow to low-lying areas

The heavy rain that turned a river in Texas into a raging wall of water was fueled by unique atmospheric conditions, according to meteorologists and climate scientists.

The Guadalupe River, winding through the scenic Texas Hill Country, has a hidden danger that struck with devastating force in July 2025. Heavy rains caused the river to surge, leading to one of the deadliest floods in recent history.