Alert archive / New Jersey / Flash Flood Warnings in 2024

Flash Flood Warning 6, NWS Philadelphia/Mount Holly

June 14, 2024Burlington County, Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 14, 2024, 6:44 PM EDT for Burlington County, Mercer County, New Jersey. It was in force for 3 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
Jun 14, 2024, 6:44 PM EDT (22:44 UTC)
Expired
Jun 14, 2024, 9:57 PM EDT
In force
3 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 35 km from the middle of the area, began a volume at 22:44 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 12:00Z, 10.7 hours before the alert went out and 170 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 2024-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 61 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2024-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.193958Sfc1 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
61 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
969 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

737 
WGUS51 KPHI 142244
FFWPHI
NJC005-021-150245-
/O.NEW.KPHI.FF.W.0006.240614T2244Z-240615T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
644 PM EDT Fri Jun 14 2024

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Southeastern Mercer County in central New Jersey...
  North Central Burlington County in southern New Jersey...

* Until 1045 PM EDT.

* At 644 PM EDT, Doppler radar indicated earlier thunderstorms that 
  produced heavy rain across the warned area. Between 1 and 2 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, Bordentown, White Horse, Mercerville-Hamilton Square, 
  Crosswicks and Yardville-Groveville.

This includes the following highways...
	Interstate 295 in New Jersey between mile markers 55 and 64.
	New Jersey Turnpike between exits 7 and 8.
	Interstate 195 in New Jersey between mile markers 0 and 7.

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 4027 7465 4021 7455 4018 7460 4019 7460
      4018 7461 4017 7461 4008 7475 4014 7472
      4016 7472 4018 7474 4019 7476 4020 7476

FLASH FLOOD...RADAR INDICATED

$$

AKL
1 follow-up statement
793 
WGUS71 KPHI 150157
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
957 PM EDT Fri Jun 14 2024

NJC005-021-150207-
/O.CAN.KPHI.FF.W.0006.000000T0000Z-240615T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Mercer NJ-
957 PM EDT Fri Jun 14 2024

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN MERCER AND 
NORTH CENTRAL BURLINGTON COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

&&

LAT...LON 4027 7465 4021 7455 4018 7460 4019 7460
      4018 7461 4017 7461 4008 7475 4014 7472
      4016 7472 4018 7474 4019 7476 4020 7476

$$

Robertson

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 4:14 PM EDTSevere Thunderstorm WarningPHISussex, Warren46 min
Jun 14, 4:40 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren50 min
Jun 14, 5:02 PM EDTSevere Thunderstorm WarningPHISussex43 min
Jun 14, 5:18 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren42 min
Jun 14, 5:23 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset, Warren52 min
Jun 14, 5:37 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer38 min
Jun 14, 5:51 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean39 min
Jun 14, 5:56 PM EDTSpecial Marine WarningPHI64 min
Jun 14, 5:59 PM EDTFlash Flood WarningPHIBurlington4 hr
Jun 14, 6:09 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Somerset21 min
Jun 14, 6:18 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth, Somerset27 min
Jun 14, 6:24 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean51 min
Jun 14, 6:29 PM EDTSpecial Marine WarningPHI2 hr
Jun 14, 6:34 PM EDTSevere Thunderstorm WarningPHICape May, Cumberland41 min
Jun 14, 6:40 PM EDTSpecial Marine WarningPHI65 min
Jun 14, 6:47 PM EDTSpecial Marine WarningPHI58 min
Jun 14, 7:03 PM EDTSpecial Marine WarningPHI87 min

Nearby

Flash Flood Warnings in New Jersey, 2024Every flash flood warning in 2024

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.