Alert archive / New Jersey / Flash Flood Warnings in 2026
Flash Flood Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 14, 2026, 11:42 PM EDT for 6 counties in New Jersey. It was in force for 117 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
- Jun 14, 2026, 11:42 PM EDT (03:42 UTC)
- Expired
- Jun 15, 2026, 1:39 AM EDT
- In force
- 117 min
- 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, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 03:44 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 00:00Z, 3.7 hours before the alert went out and 139 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1582 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
254
WGUS51 KPHI 150342
FFWPHI
NJC005-021-023-025-029-035-150745-
/O.NEW.KPHI.FF.W.0008.260615T0342Z-260615T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
1142 PM EDT Sun Jun 14 2026
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Eastern Mercer County in central New Jersey...
Central Monmouth County in central New Jersey...
Middlesex County in northern New Jersey...
Southeastern Somerset County in northern New Jersey...
North Central Burlington County in southern New Jersey...
Northwestern Ocean County in southern New Jersey...
* Until 345 AM EDT.
* At 1142 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 0.5 and 1 inch of rain
has 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.
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...
New Brunswick, Perth Amboy, Somerset, Edison, Middletown, Old
Bridge, East Brunswick, South Brunswick, Sayreville, North
Brunswick, Marlboro and Manalapan.
This includes the following highways...
New Jersey Turnpike between exits 8A and 12.
Interstate 287 in New Jersey between mile markers 0 and 4.
Interstate 195 in New Jersey between mile markers 7 and 21.
Garden State Parkway between mile markers 109 and 133.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 4020 7459 4031 7463 4034 7478 4051 7449
4060 7432 4058 7421 4055 7425 4050 7426
4050 7428 4044 7421 4046 7414 4042 7406
4035 7405 4016 7433 3993 7490
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
RCM1 follow-up statement
567
WGUS71 KPHI 150539
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
139 AM EDT Mon Jun 15 2026
NJC005-021-023-025-029-035-150549-
/O.CAN.KPHI.FF.W.0008.000000T0000Z-260615T0745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Mercer NJ-Middlesex NJ-Monmouth NJ-Ocean NJ-
Somerset NJ-
139 AM EDT Mon Jun 15 2026
...FLASH FLOOD WARNING IS CANCELLED FOR EASTERN MERCER, CENTRAL
MONMOUTH, MIDDLESEX, SOUTHEASTERN SOMERSET, NORTH CENTRAL BURLINGTON
AND NORTHWESTERN OCEAN COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
&&
LAT...LON 4020 7459 4031 7463 4034 7478 4051 7449
4060 7432 4058 7421 4055 7425 4050 7426
4050 7428 4044 7421 4046 7414 4042 7406
4035 7405 4016 7433 3993 7490
$$
HoeflichThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 9:53 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jun 14, 9:54 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 51 min |
| Jun 14, 10:04 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jun 14, 10:21 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 39 min |
| Jun 14, 10:26 PM EDT | Flash Flood Warning | PHI | Camden | 3 hr |
| Jun 14, 10:44 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 46 min |
| Jun 14, 10:51 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Mercer | 3 hr |
| Jun 14, 10:58 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth | 47 min |
| Jun 14, 11:03 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester, Salem | 2 hr |
| Jun 14, 11:16 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 29 min |
| Jun 15, 3:10 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more | 23 hr |
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.