Alert archive / New Jersey / Flash Flood Warnings in 2025

Flash Flood Warning 66, NWS Philadelphia/Mount Holly

July 14, 2025Middlesex County, Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 14, 2025, 7:11 PM EDT for Middlesex County, Monmouth County, New Jersey. It was in force for 4 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 14, 2025, 7:11 PM EDT (23:11 UTC)
Expired
Jul 14, 2025, 11:15 PM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Middlesex County, NJ, Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 61 km from the middle of the area, began a volume at 23:14 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.

What was reported inside it

TimeReportWhereRemark
Jul 14, 8:00 PM EDTFLASH FLOODKeansburg, NJFlooding on Belleview Ave and Center Ave. Time estimated.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.2 hours before the alert went out and 120 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2025-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2025-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
-115 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

007 
WGUS51 KPHI 142311
FFWPHI
NJC023-025-150315-
/O.NEW.KPHI.FF.W.0066.250714T2311Z-250715T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
711 PM EDT Mon Jul 14 2025

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Northern Monmouth County in central New Jersey...
  Eastern Middlesex County in northern New Jersey...

* Until 1115 PM EDT.

* At 711 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 0.5 and 1.5 inches of 
  rain have fallen. 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, Sandy Hook, Middletown, Old Bridge, 
  East Brunswick, Sayreville, North Brunswick, Holmdel, Red Bank, 
  Keansburg and Matawan.

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.

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.

&&

LAT...LON 4057 7423 4057 7421 4055 7425 4050 7426
      4050 7428 4049 7429 4044 7421 4046 7414
      4040 7398 4041 7398 4048 7401 4043 7396
      4035 7395 4031 7447 4045 7449

FLASH FLOOD...RADAR INDICATED

$$

MPS
2 follow-up statements
042 
WGUS71 KPHI 150234
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1034 PM EDT Mon Jul 14 2025

NJC023-025-150315-
/O.CON.KPHI.FF.W.0066.000000T0000Z-250715T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Middlesex NJ-Monmouth NJ-
1034 PM EDT Mon Jul 14 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT THIS 
EVENING FOR NORTHERN MONMOUTH AND EASTERN MIDDLESEX COUNTIES...

At 1034 PM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 2 
and 3 inches of rain have fallen. Additional rainfall amounts up to 
0.5 inches are possible in the warned area. Flash flooding is 
already occurring.

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...
  New Brunswick, Perth Amboy, Sandy Hook, Middletown, Old Bridge, 
  East Brunswick, Sayreville, North Brunswick, Holmdel, Red Bank, 
  Keansburg and Matawan.

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.

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.

&&

LAT...LON 4045 7449 4057 7423 4057 7421 4055 7425
      4050 7426 4050 7428 4049 7429 4044 7421
      4046 7414 4042 7406 4040 7398 4048 7401
      4043 7396 4035 7395 4034 7447

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

Staarmann
528 
WGUS71 KPHI 150314
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1114 PM EDT Mon Jul 14 2025

NJC023-025-150324-
/O.EXP.KPHI.FF.W.0066.000000T0000Z-250715T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Middlesex NJ-Monmouth NJ-
1114 PM EDT Mon Jul 14 2025

...FLASH FLOOD WARNING WILL EXPIRE AT 1115 PM EDT THIS EVENING FOR 
NORTHERN MONMOUTH AND EASTERN MIDDLESEX COUNTIES...

The heavy rain has ended, and no additional flooding is expected. A 
Flood Warning remains in effect for portions of northern Middlesex 
County, where some areas of flooding remain. Please continue to heed 
remaining road closures.

&&

LAT...LON 4045 7449 4057 7423 4057 7421 4055 7425
      4050 7426 4050 7428 4049 7429 4044 7421
      4046 7414 4042 7406 4040 7398 4048 7401
      4043 7396 4035 7395 4034 7447

$$

Staarmann

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 4:49 PM EDTFlash Flood WarningPHIMorris, Warren3 hr
Jul 14, 5:25 PM EDTFlash Flood WarningPHIHunterdon, Morris, Warren4 hr
Jul 14, 5:36 PM EDTFlash Flood WarningPHIMiddlesex, Morris, Somerset4 hr
Jul 14, 5:47 PM EDTFlash Flood WarningPHIMorris4 hr
Jul 14, 6:26 PM EDTFlash Flood WarningPHIHunterdon, Mercer, Middlesex, Somerset3 hr
Jul 14, 6:45 PM EDTRiver Flood WarningPHIMorris, Somerset13 hr
Jul 14, 7:16 PM EDTSpecial Marine WarningPHI59 min
Jul 14, 7:45 PM EDTFlash Flood WarningPHIBurlington, Camden2 hr

Nearby

Flash Flood Warnings in New Jersey, 2025Every flash flood warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.