594 WGUS71 KPHI 230856 FFSPHI Flash Flood Statement National Weather Service Mount Holly NJ 456 AM EDT Sun Aug 23 2026 DEC003-PAC045-231145- /O.CON.KPHI.FF.W.0126.000000T0000Z-260823T1145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ New Castle DE-Delaware PA- 456 AM EDT Sun Aug 23 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM EDT THIS MORNING FOR NORTHEASTERN NEW CASTLE AND SOUTHEASTERN DELAWARE COUNTIES... At 456 AM EDT, Thunderstorms produced heavy rain in the warned area, with flash flooding reported in Chester. Between 1 and 2 inches of rain have fallen. While the heavy rain has ended, flash flooding is occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. Some locations that may experience flash flooding include... Philadelphia, Wilmington, Chester, Yeadon, Carneys Point, Folcroft, Swarthmore, Penns Grove, Arden, Chester Township, Chelsea and Nether Providence Township. This includes the following highways... Interstate 476 in Pennsylvania between mile markers 0 and 7. Interstate 95 in Pennsylvania between mile markers 0 and 9. Interstate 95 in Delaware between mile markers 15 and 23. 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. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. && LAT...LON 3997 7533 3991 7525 3989 7526 3985 7532 3985 7534 3980 7541 3978 7544 3976 7546 3974 7547 3971 7552 3979 7560 FLASH FLOOD...RADAR INDICATED $$ MPS