Flash Flood Warnings Have Increased in the Philadelphia Metro Area

There have been more flash flood warnings issued in the Philadelphia metro area in 2026 than in any year since 2008, when the National Weather Service adopted its current warning system.

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Philadelphia metro area consists of Philadelphia, Bucks, Chester, Delaware and Montgomery counties in Pa.; Burlington, Camden, and Gloucester counties in N.J.

Chart: Stephen Stirling / Staff Source: NOAA