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NWS Mount Holly NJFF.W 0153September 3, 2026

Flash Flood Warning: New Castle, Burlington, Camden and 6 more, DE and NJ

The National Weather Service office in Mount Holly issued a flash flood warning for New Castle, Burlington, Camden and 6 more in Delaware, New Jersey, Pennsylvania, which was in force until 5:30 a.m. local time on September 3. It was the 153rd 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

Issued1:34 a.m. EDT, September 3, 2026
In force1:34 a.m. EDT, September 3, 2026
Expired5:30 a.m. EDT, September 3, 2026

In force for 3.9 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, Burlington, Camden and 6 more
State
Delaware
Level
Warning
Issued
1:34 a.m. EDT, September 3, 2026
Expires
5:30 a.m. EDT, September 3, 2026
CAP severity, certainty, urgency
Severe, Likely, Immediate
VTEC event
KPHI FF.W 0153
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 Burlington County in southern New Jersey... Northwestern Camden County in southern New Jersey... Northwestern Gloucester County in southern New Jersey... Southeastern Bucks County in southeastern Pennsylvania... Chester County in southeastern Pennsylvania... Delaware County in southeastern Pennsylvania... Southeastern Montgomery County in southeastern Pennsylvania... Philadelphia County in southeastern Pennsylvania... * Until 530 AM EDT. * At 134 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. 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 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 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.

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.

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.