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 ...

Flash flooding ranks among the top weather-related killers in the U.S. But what is it exactly, and how does it happen?

Flash floods in Texas have killed more than 100 people, many of them children. Heavy rains fell quickly in the predawn hours ...

FOX Weather Correspondent Katie Byrne is live from Philadelphia to share the latest updates on the flash flood and storm threat for the city.

Southern Lancaster County is under a flash flood warning until 7:45 p.m. Tuesday evening.  According to the National Weather ...

The National Weather Service in State College, Pennsylvania, has issued a flash flood warning for southeastern Lancaster ...

A flash flood warning was issued by the National Weather Service in Milwaukee-Sullivan at 4:03 p.m. on Wednesday, June 18. This warning applies to Rock and Walworth counties. It was set to expire ...

A flash flood warning was issued by the National Weather Service in Denver at 11:40 a.m. on Tuesday, June 17. This warning applies to Larimer County. The NWS warns: "Move to higher ground now. Act ...

We thought it was a normal thunderstorm,” Lilly Kummerfeld said. “We didn't know about any of the destruction or the horrible things happening at that moment.” ...

The agency upgraded the flash flood warning to an emergency at 6:13 p.m., citing "3 to 6 inches of rain" that had fallen in parts of the city.

A Flash Flood Watch has been issued for the Victoria Crossroads until 7 PM this evening. Additional rainfall amounts of 1-3 inches can be expected. Isolated amounts up to 4 ...

The warning had been issued for Fulton County. "Flood waters are receding. The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road ...