Flash Flood Warning

Locations Affected

Philadelphia, PA ∙ Camden, NJ ∙ Wilmington, DE ∙ Chatham, PA ∙ West Goshen, PA ∙ Eagleville, PA ∙ Bryn Mawr, PA ∙ Dresher, PA ∙ Croydon, PA ∙ Moorestown-Lenola, NJ

Full Alert Message

Flash Flood Statement National Weather Service Mount Holly NJ 338 AM EDT Thu Sep 3 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 530 AM EDT EARLY THIS MORNING FOR NORTHERN NEW CASTLE, NORTHWESTERN BURLINGTON, NORTHWESTERN CAMDEN, NORTHWESTERN GLOUCESTER, SOUTHEASTERN BUCKS, CHESTER, DELAWARE, SOUTHEASTERN MONTGOMERY AND PHILADELPHIA COUNTIES... At 338 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms produced heavy rain across the warned area. Additional storms will impact the warned area through 530 AM. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 0.5 to 1 inch in 30 minutes. Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include... Philadelphia, Camden, Wilmington, Newark, West Chester, Gloucester City, Cherry Hill, Bensalem, Mount Laurel, Norristown, Chester and Willingboro. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && LAT...LON 3973 7609 3974 7610 3976 7606 3983 7604 3983 7602 3985 7602 3987 7599 3995 7599 4004 7593 4011 7594 4017 7551 4018 7491 4012 7481 3996 7490 3986 7498 3978 7544 3962 7558 3961 7579 3972 7579 3972 7613 FLASH FLOOD...RADAR AND GAUGE INDICATED EXPECTED RAINFALL RATE...0.5-1 INCH IN 30 MINUTES

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