Alert archive / New Jersey / Flash Flood Warnings in 2026
Flash Flood Warning 41, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 9, 2026, 7:31 PM EDT for Atlantic County, Cape May County, Cumberland County, New Jersey. It was in force for 119 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 9, 2026, 7:31 PM EDT (23:31 UTC)
- Expired
- Jul 9, 2026, 9:30 PM EDT
- In force
- 119 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ
The radar
The Dover AFB radar (KDOX), 75 km from the middle of the area, began a volume at 23:33 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.5 hours before the alert went out and 220 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1170 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
655
WGUS51 KPHI 092331
FFWPHI
NJC001-009-011-100130-
/O.NEW.KPHI.FF.W.0041.260709T2331Z-260710T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
731 PM EDT Thu Jul 9 2026
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Southwestern Atlantic County in southern New Jersey...
Northwestern Cape May County in southern New Jersey...
Southeastern Cumberland County in southern New Jersey...
* Until 930 PM EDT.
* At 731 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 2 inches of rain have fallen. The expected rainfall rate is
1.5 to 2.5 inches in 1 hour. Additional rainfall amounts of 1 to 3
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...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...
Vineland, Millville, Cumberland, Pleasantville, Northfield,
Absecon, Egg Harbor City, Laurel Lake, Weymouth, Woodbine, Estell
Manor and Corbin City.
This includes the following highways...
Atlantic City Expressway between mile markers 6 and 24.
Garden State Parkway between mile markers 34 and 42.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 3937 7518 3949 7495 3959 7477 3945 7446
3930 7467 3921 7482 3923 7501 3924 7512
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1.5-2.5 INCHES IN 1 HOUR
$$
Cooper1 follow-up statement
832
WGUS71 KPHI 100122
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
922 PM EDT Thu Jul 9 2026
NJC001-009-011-100132-
/O.EXP.KPHI.FF.W.0041.000000T0000Z-260710T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Cape May NJ-Cumberland NJ-
922 PM EDT Thu Jul 9 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 930 PM EDT THIS EVENING FOR
SOUTHWESTERN ATLANTIC, NORTHWESTERN CAPE MAY AND SOUTHEASTERN
CUMBERLAND COUNTIES...
The heavy rain has ended. Please continue to heed any remaining road
closures.
A Flood Watch remains in effect until 1200 AM EDT for a portion of
southern New Jersey.
&&
LAT...LON 3937 7518 3949 7495 3959 7477 3945 7446
3930 7467 3921 7482 3923 7501 3924 7512
$$
CooperThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 2:09 AM EDT | Flood Watch | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Hunterdon and 6 more | 19 hr |
| Jul 9, 1:22 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 4 hr |
| Jul 9, 1:37 PM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 6 hr |
| Jul 9, 2:00 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 5 hr |
| Jul 9, 2:42 PM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth | 4 hr |
| Jul 9, 3:01 PM EDT | Flash Flood Warning | PHI | Burlington | 4 hr |
| Jul 9, 4:32 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Jul 9, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 45 min |
| Jul 9, 5:34 PM EDT | Special Marine Warning | PHI | 26 min |
Nearby
Flash Flood Warnings in New Jersey, 2026Every flash flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.