Alert archive / New Jersey / Flash Flood Warnings in 2026
Flash Flood Warning 26, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 6, 2026, 10:38 AM EDT for 5 counties in New Jersey. It was in force for 4 hr. 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 6, 2026, 10:38 AM EDT (14:38 UTC)
- Expired
- Jul 6, 2026, 2:45 PM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 37 km from the middle of the area, began a volume at 14:38 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
Brookhaven, NY (KOKX), launched 12:00Z, 2.6 hours before the alert went out and 163 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
- 11 J/kg
- Mixed-layer CIN
- -171 J/kg
- Mixed-layer LCL
- 645 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
476
WGUS51 KPHI 061438
FFWPHI
NJC005-021-023-025-029-061845-
/O.NEW.KPHI.FF.W.0026.260706T1438Z-260706T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
1038 AM EDT Mon Jul 6 2026
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Mercer County in central New Jersey...
Southwestern Monmouth County in central New Jersey...
Southwestern Middlesex County in northern New Jersey...
Northeastern Burlington County in southern New Jersey...
Northwestern Ocean County in southern New Jersey...
* Until 245 PM EDT.
* At 1038 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 2.5 inches of
rain have fallen. Flash flooding is ongoing or expected to begin
shortly.
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...
Trenton, Manalapan, Ewing, Princeton, Hightstown, Bordentown,
Cranbury, Allentown, Roosevelt, Wrightstown, Windsor and Edinburg.
This includes the following highways...
Interstate 295 in New Jersey between mile markers 59 and 74.
New Jersey Turnpike between exits 8 and 8A.
Interstate 195 in New Jersey between mile markers 0 and 20.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4030 7483 4033 7473 4038 7470 4038 7465
4036 7459 4033 7445 4025 7436 4015 7436
4003 7453 3999 7458 4016 7471
FLASH FLOOD...RADAR INDICATED
$$
Robertson2 follow-up statements
595
WGUS71 KPHI 061646 RRA
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
1246 PM EDT Mon Jul 6 2026
NJC005-021-023-025-029-061845-
/O.CON.KPHI.FF.W.0026.000000T0000Z-260706T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Mercer NJ-Middlesex NJ-Monmouth NJ-Ocean NJ-
1246 PM EDT Mon Jul 6 2026
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 245 PM EDT THIS
AFTERNOON FOR MERCER, SOUTHWESTERN MONMOUTH, SOUTHWESTERN MIDDLESEX,
NORTHEASTERN BURLINGTON AND NORTHWESTERN OCEAN COUNTIES...
At 1246 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts up to 0.5 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that may experience flash flooding include...
Trenton, Manalapan, Ewing, Princeton, Hightstown, Bordentown,
Cranbury, Allentown, Roosevelt, Wrightstown, Windsor and Edinburg.
This includes the following highways...
Interstate 295 in New Jersey between mile markers 60 and 74.
New Jersey Turnpike between exits 8 and 8A.
Interstate 195 in New Jersey between mile markers 0 and 20.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4030 7483 4033 7473 4038 7470 4038 7465
4036 7459 4033 7445 4025 7436 4015 7436
4003 7453 3999 7458 4016 7471
FLASH FLOOD...RADAR INDICATED
$$
Hoeflich771
WGUS71 KPHI 061838
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
238 PM EDT Mon Jul 6 2026
NJC005-021-023-025-029-061848-
/O.EXP.KPHI.FF.W.0026.000000T0000Z-260706T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Mercer NJ-Middlesex NJ-Monmouth NJ-Ocean NJ-
238 PM EDT Mon Jul 6 2026
...FLASH FLOOD WARNING WILL EXPIRE AT 245 PM EDT THIS AFTERNOON FOR
MERCER, SOUTHWESTERN MONMOUTH, SOUTHWESTERN MIDDLESEX, NORTHEASTERN
BURLINGTON AND NORTHWESTERN OCEAN COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
A Flood Watch remains in effect until 800 PM EDT for portions of
northern Delaware, New Jersey, and Pennsylvania.
&&
LAT...LON 4030 7483 4033 7473 4038 7470 4038 7465
4036 7459 4033 7445 4025 7436 4015 7436
4003 7453 3999 7458 4016 7471
$$
HoeflichThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 8:37 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset | 38 min |
| Jul 5, 9:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex | 46 min |
| Jul 5, 9:58 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jul 5, 10:05 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 40 min |
| Jul 5, 10:21 PM EDT | Special Marine Warning | PHI | 84 min | |
| Jul 5, 10:37 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 38 min |
| Jul 5, 11:00 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Jul 5, 11:30 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Cumberland, Gloucester, Salem | 45 min |
| Jul 6, 12:01 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 29 min |
| Jul 6, 9:16 AM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Somerset | 2 hr |
| Jul 6, 9:27 AM EDT | Flash Flood Warning | PHI | Cumberland, Gloucester, Salem | 3 hr |
| Jul 6, 10:15 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Jul 6, 10:27 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Jul 6, 11:01 AM EDT | Special Marine Warning | PHI | 78 min | |
| Jul 6, 11:02 AM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth | 4 hr |
| Jul 6, 11:13 AM EDT | Flash Flood Warning | PHI | Burlington | 3 hr |
| Jul 6, 11:44 AM EDT | Flash Flood Warning | PHI | Monmouth, Ocean | 4 hr |
| Jul 6, 1:46 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jul 6, 2:15 PM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Jul 6, 2:40 PM EDT | Areal Flood Warning | PHI | Burlington | 4 hr |
| Jul 6, 3:07 PM EDT | Areal Flood Warning | PHI | Monmouth, Ocean | 4 hr |
| Jul 6, 3:39 PM EDT | Special Marine Warning | PHI | 48 min | |
| Jul 6, 3:50 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 6, 4:36 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jul 6, 5:23 PM EDT | Special Marine Warning | PHI | 82 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.