A flash flood is a rapid rise of water along a stream or in a low-lying urban area, the National Weather Service said. Flash flooding can result from slow-moving thunderstorms, from numerous thunderstorms that develop repeatedly over the same area, or from heavy rains associated with tropical cyclones.

Renowned Texas meteorologist Troy Kimmel spoke on Inside Texas Politics about the forecast preceding the deadly flooding in the Hill Country.

Viral posts promoted false claims that cloud seeding, a form of weather modification, played a role in the devastation. Meteorologists explain it doesn't work that way.

KERRVILLE, Texas -- Several hundred people gathered for a worship ceremony at a high school stadium in Texas on Wednesday evening to remember the at least 120 people who died in the catastrophic flash floods over the July Fourth holiday, as well the many still missing.

“So many are hurting and have lost everything, including loved ones, in my home state of Texas,” Gomez wrote. “My heart breaks for those who have lost someone and anyone still missing. The people of Texas will need our help as they rebuild from this unfathomable disaster.”

Fox News correspondent Christina Coleman has the latest on the deadly central Texas floods that have killed 120 and resulted in more than 170 missing on ‘The Story.’

With more than 170 still missing, communities must reconcile how to pick up the pieces around a waterway that remains both a wellspring and a looming menace.

Brooklyn and Bailey MckNight's little sister, Paisley, was at a camp on a smaller arm of the Guadalupe River. The 14-year-old was "just miles" away from Camp Mystic in Central Texas, which has been devastated by the deadly floodwaters spurred by extreme rainfall on July 4.