A flash flood warning is issued when a flash flood is either imminent or already occurring. In flood-prone areas, it’s ...

A flash flood warning was issued by the National Weather Service in Mount Holly at 12:09 a.m. on Wednesday, May 14.

On Wednesday at 12:09 p.m. a flash flood warning was released by the National Weather Service in effect until 4:15 p.m. for ...

As rain continued to pour Wednesday, parts of several Philadelphia area counties were put under a flash flood warning.