Severe thunderstorm warnings and flash flood watches have been issued across multiple counties in Pennsylvania and parts of New Jersey throughout late June and early July 2025. Initial warnings covered Delaware, New Castle, Chester, Salem, and Gloucester counties, extending through July 3 to include Lehigh, Berks, Northampton, Warren, Carbon, Bucks, Hunterdon, Monroe, and Somerset counties. On July 9, the Philadelphia region faced a severe thunderstorm watch and flood watch until midnight, with heavy rain and damaging winds expected. Lancaster, York, Cumberland, Salem, Gloucester, and Atlantic counties also received severe thunderstorm warnings on July 9. Flash flood warnings were specifically issued for Chester and Delaware counties due to rain rates of 1.5 to 2 inches per hour. The Philadelphia region remained under severe thunderstorm and flood watches into the night of July 9 and early July 10, with flash flood warnings still active. Authorities advised caution due to the potential for heavy rainfall and flooding in these areas.