NWS Mount Holly NJFF.W 0150September 1, 2026
Flash Flood Warning: New Castle, Gloucester, Salem and 2 more, DE and NJ
The National Weather Service office in Mount Holly issued a flash flood warning for New Castle, Gloucester, Salem and 2 more in Delaware, New Jersey, Pennsylvania, which was in force until 12:45 a.m. local time on September 2. It was the 150th flash flood warning the NWS office in Mount Holly issued in 2026. Delaware had 2 flash flood warnings in September 2026, against 1 in an average September of 2008-2025 (Delaware's flash flood warnings by year).
ExpiredWarning
In force for 4 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Mount Holly NJ
- Area
- New Castle, Gloucester, Salem and 2 more
- State
- Delaware
- Level
- Warning
- Issued
- 8:44 p.m. EDT, September 1, 2026
- Expires
- 12:45 a.m. EDT, September 2, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KPHI FF.W 0150
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northern New Castle County in northern Delaware... Northwestern Gloucester County in southern New Jersey... Northwestern Salem County in southern New Jersey... Chester County in southeastern Pennsylvania... Delaware County in southeastern Pennsylvania... * Until 1245 AM EDT. * At 844 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. 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... Wilmington, Newark, West Chester, Chester, Pennsville, Coatesville, Westtown, Pitman, Carneys Point and Downingtown.
What the agency told people 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. 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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.