Alert archive / New Jersey / Flash Flood Warnings in 2025

Flash Flood Warning 34, NWS Philadelphia/Mount Holly

July 1, 2025Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 1, 2025, 6:11 PM EDT for Ocean 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 1, 2025, 6:11 PM EDT (22:11 UTC)
Expired: Jul 1, 2025, 10:15 PM EDT
In force: 4 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 20 km from the middle of the area, began a volume at 22:14 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

Time	Report	Where	Remark
Jul 1, 7:00 PM EDT	FLASH FLOOD	3 Nnw Toms River, NJ	Reports of road closures and street flooding in North Toms River. 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, 10.2 hours before the alert went out and 148 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 513 J/kg
Mixed-layer CIN: -106 J/kg
Mixed-layer LCL: 775 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 203 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

As transmitted.

501 
WGUS51 KPHI 012211
FFWPHI
NJC029-020215-
/O.NEW.KPHI.FF.W.0034.250701T2211Z-250702T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
611 PM EDT Tue Jul 1 2025

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Northeastern Ocean County in southern New Jersey...

* Until 1015 PM EDT.

* At 611 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 1.5 inches of 
  rain have fallen. The expected rainfall rate is 1 to 2.5 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...
  Toms River, Beachwood, Seaside Heights, Lakehurst, Mantoloking, 
  Pleasant Plains, Holiday City South, Leisure Village East, Leisure 
  Village West-Pine Lake Park, Holiday City-Berkeley, Dover Beaches 
  South and Dover Beaches North.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

&&

LAT...LON 3988 7432 3992 7437 3995 7437 3998 7438
      4001 7436 4003 7434 4002 7431 4002 7424
      4003 7417 4006 7406 4007 7403 4006 7402
      4005 7401 4003 7401 4000 7402 3997 7403
      3993 7403 3990 7407 3988 7417

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR

$$

Hoeflich

2 follow-up statements

153 
WGUS71 KPHI 012232
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
632 PM EDT Tue Jul 1 2025

NJC029-020215-
/O.CON.KPHI.FF.W.0034.000000T0000Z-250702T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-
632 PM EDT Tue Jul 1 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT THIS 
EVENING FOR NORTHEASTERN OCEAN COUNTY...

At 632 PM EDT, trained weather spotters reported thunderstorms 
producing heavy rain with road closures in Toms River. Between 1 and 
1.5 inches of rain have fallen. The expected rainfall rate is 1 to 
2.5 inches in 1 hour. Additional rainfall amounts of 1.5 to 3 inches 
are possible in the warned area. Flash flooding is already occurring.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Trained spotters reported.

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...
  Toms River, Beachwood, Seaside Heights, Lakehurst, Mantoloking, 
  Pleasant Plains, Holiday City South, Leisure Village East, Leisure 
  Village West-Pine Lake Park, Holiday City-Berkeley, Dover Beaches 
  South and Dover Beaches North.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

&&

LAT...LON 3988 7432 3992 7437 3995 7437 3998 7438
      4001 7436 4003 7434 4002 7431 4002 7424
      4003 7417 4006 7406 4007 7403 4006 7402
      4005 7401 4003 7401 4000 7402 3997 7403
      3993 7403 3990 7407 3988 7417

FLASH FLOOD...OBSERVED
EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR

$$

Hoeflich

085 
WGUS71 KPHI 020207
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1007 PM EDT Tue Jul 1 2025

NJC029-020217-
/O.EXP.KPHI.FF.W.0034.000000T0000Z-250702T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-
1007 PM EDT Tue Jul 1 2025

...FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM EDT THIS EVENING FOR 
NORTHEASTERN OCEAN COUNTY...

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 3988 7432 3992 7437 3995 7437 3998 7438
      4001 7436 4003 7434 4002 7431 4002 7424
      4003 7417 4006 7406 4007 7403 4006 7402
      4005 7401 4003 7401 4000 7402 3997 7403
      3993 7403 3990 7407 3988 7417

$$

Hoeflich

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 9:38 PM EDT	Special Marine Warning	PHI		67 min
Jun 30, 9:41 PM EDT	Severe Thunderstorm Warning	PHI	Salem	64 min
Jul 1, 12:05 AM EDT	Special Marine Warning	PHI		37 min
Jul 1, 2:30 AM EDT	Flood Watch	PHI	Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more	19 hr
Jul 1, 1:47 PM EDT	Special Marine Warning	PHI		58 min
Jul 1, 2:58 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	47 min
Jul 1, 3:22 PM EDT	Special Marine Warning	PHI		83 min
Jul 1, 3:39 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth	66 min
Jul 1, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	50 min
Jul 1, 4:36 PM EDT	Special Marine Warning	PHI		84 min
Jul 1, 5:00 PM EDT	Flash Flood Warning	PHI	Monmouth, Ocean	4 hr
Jul 1, 5:07 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	38 min
Jul 1, 5:10 PM EDT	Special Marine Warning	PHI		2 hr
Jul 1, 5:14 PM EDT	Special Marine Warning	PHI		91 min
Jul 1, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	61 min
Jul 1, 5:43 PM EDT	Special Marine Warning	PHI		98 min
Jul 1, 6:32 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	58 min
Jul 1, 6:35 PM EDT	Special Marine Warning	PHI		115 min
Jul 1, 6:39 PM EDT	Special Marine Warning	PHI		96 min
Jul 1, 6:44 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	46 min

Nearby

Flash Flood Warnings in New Jersey, 2025 Every 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.