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Alert Explainer

NWS Alert Explainer: Alert Explainer

🌊 Flash Flood Warning — New Castle, DE; Gloucester, NJ; Salem, NJ; Chester, PA; Delaware, PA

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🌊 Flash Flood Warning — New Castle, DE; Gloucester, NJ; Salem, NJ; Chester, PA; Delaware, PA

ISSUED: 10:28 PM ET Tue Sep 1 | EXPIRES: 12:45 AM ET Wed Sep 2

What's Happening: Thunderstorms have produced heavy rain across the warned area, with between 2 and 3 inches of rain already fallen. Flash flooding is ongoing or expected to begin shortly. The hazard is flash flooding caused by thunderstorms, affecting small creeks and streams, urban areas, highways, streets, underpasses, and other poor-drainage and low-lying areas. Locations included in the warning include Wilmington, Newark, West Chester, Chester, Pennsville, Coatesville, Westtown, Pitman, Carneys Point, and Downingtown.

Who This Affects:

  • New Castle, DE
  • Gloucester, NJ
  • Salem, NJ
  • Chester, PA
  • Delaware, PA

What To Do:

  • Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
  • Be especially cautious at night, when it is harder to recognize the dangers of flooding.
  • Report observed flooding to local emergency services or law enforcement when you can do so safely, and ask them to pass the report to the National Weather Service.

Why Now: Doppler radar indicated thunderstorms producing heavy rain across the warned area. Radar indicated the flash flood threat.

— US Weather Warriors 🌪️ #DelmarvaWeather #DEwx #MDwx #VAwx #FlashFloodWarning