A flash flood is a rapid rise of water along a stream or in a low-lying urban area, the 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.

Social media users are spreading false claims that flash floods in Texas that killed more than 100 people over the Fourth of July holiday weekend were caused by weather modification.

Heavy rain brought deadly flash flooding to Central Texas on July 4. Texas officials face scrutiny over response to catastrophic and deadly flooding Famous Last Words from 15 Iconic People Sweden invented ‘flight shaming’.