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.

NOAA also said the NWS had forecast briefings Thursday morning, issued a flood watch Thursday afternoon and then issued flash flood warnings on Thursday night and early Friday. This gave "preliminary lead times of more than three hours before flash flooding conditions occurred,