Alert archive / New Jersey / Flash Flood Warnings in 2024
Flash Flood Warning 16, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 7, 2024, 3:54 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 3 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 7, 2024, 3:54 PM EDT (19:54 UTC)
- Expired
- Jul 7, 2024, 7:02 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Burlington County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 36 km from the middle of the area, began a volume at 19:54 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 7, 5:00 PM EDT | RAIN 1.77 | 3 Wsw Penn State Forest, NJ | 1.29 inches of rain fell from 4pm to 5pm with 1.77 inches in 2 hours overall. Rutgers NJ Weather Network site Oswego Lake. |
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, 7.9 hours before the alert went out and 199 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
- 420 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted.
363
WGUS51 KPHI 071954
FFWPHI
NJC005-029-080000-
/O.NEW.KPHI.FF.W.0016.240707T1954Z-240708T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
354 PM EDT Sun Jul 7 2024
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Southeastern Burlington County in southern New Jersey...
Central Ocean County in southern New Jersey...
* Until 800 PM EDT.
* At 354 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 1.5 inches in 1
hour. Additional rainfall amounts of 1 to 1.5 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...
Penn State Forest and Batsto.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
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 3963 7462 3962 7463 3963 7463 3962 7464
3966 7466 3967 7466 3968 7467 3970 7468
3978 7440 3968 7435 3962 7460
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5 INCHES IN 1 HOUR
$$
MPS3 follow-up statements
811
WGUS71 KPHI 072031
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
431 PM EDT Sun Jul 7 2024
NJC005-029-080000-
/O.CON.KPHI.FF.W.0016.000000T0000Z-240708T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
431 PM EDT Sun Jul 7 2024
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR SOUTHEASTERN BURLINGTON AND CENTRAL OCEAN COUNTIES...
At 431 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. The expected rainfall rate is 1.5 inches in 1 hour.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area. Flash flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that may experience flash flooding include...
Penn State Forest and Batsto.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3963 7462 3962 7463 3963 7463 3962 7464
3966 7466 3967 7466 3968 7467 3970 7468
3978 7440 3968 7435 3962 7460
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...1.5 INCHES IN 1 HOUR
$$
MPS290
WGUS71 KPHI 072128
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
528 PM EDT Sun Jul 7 2024
NJC005-029-080000-
/O.CON.KPHI.FF.W.0016.000000T0000Z-240708T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
528 PM EDT Sun Jul 7 2024
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
FOR SOUTHEASTERN BURLINGTON AND CENTRAL OCEAN COUNTIES...
At 528 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. Flooding impacts will continue, but no additional rainfall
is expected. 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...
Penn State Forest and Batsto.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
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 3963 7462 3962 7463 3963 7463 3962 7464
3966 7466 3967 7466 3968 7467 3970 7468
3978 7440 3968 7435 3962 7460
FLASH FLOOD...RADAR INDICATED
$$
MPS321
WGUS71 KPHI 072302
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
702 PM EDT Sun Jul 7 2024
NJC005-029-072312-
/O.CAN.KPHI.FF.W.0016.000000T0000Z-240708T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
702 PM EDT Sun Jul 7 2024
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN BURLINGTON AND
CENTRAL OCEAN COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
&&
LAT...LON 3963 7462 3962 7463 3963 7463 3962 7464
3966 7466 3967 7466 3968 7467 3970 7468
3978 7440 3968 7435 3962 7460
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 2:42 PM EDT | Heat Advisory | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Hunterdon and 9 more | 3 days |
| Jul 7, 5:33 PM EDT | Marine Dense Fog Advisory | PHI | 25 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.