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.

At least three people were killed by historic flash floods in a New Mexico mountain community that suffered devastating wildfires last year, officials said late Tuesday.

A New Mexico mountain village is preparing for another round of monsoon rains as it tries to dig out from historic flooding that killed a man and two children.

Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

Follow for live updates in the Texas flooding as more than 173 are missing as rescuers continue a desperate search