The risk of the catastrophic flooding that struck Texas Hill Country as people slept on July 4 and left at least 120 dead was potentially underestimated by federal authorities, according to an ABC News analysis of Federal Emergency Management Agency data, satellite imagery and risk modeling.

Officials at the Comfort Volunteer Fire Department triggered a flood warning siren last week when the Guadalupe River began to swell.

For Drew Hays, eight-year-old Lucy Dillon was top of mind when she and her friends organized a fundraising event for the victims of catastrophic flooding on July 4. The Hill Country flood took the lives of at least 109 people,

Dispatch audio from some of the areas hit hardest by deadly flooding in Texas are shedding new light on the situation emergency workers faced as the water quickly rose.

This year's flash floods were confined to the northeastern part of the state. They were far less catastrophic than those of the previous two years.

More than 111 people have died across six counties after flash flooding from heavy rain began affecting the state last week.

More than 100 people are dead after heavy rainfall overwhelmed a river in central Texas. Here's what we know about Trump's trip to the area.

The threat of flash flooding returned to North Carolina on Thursday, only days after Tropical Depression Chantal dumped heavy rain across the central part of the state, flooding homes and highways and leading to dozens of rescues.

When I moved in, I got surveyed and they told me I was well above the elevation level and there was a very low risk,” said one neighborhood resident.

North Carolina Gov. Josh Stein said July 8 that state officials were working to confirm the total number of fatalities.