Alert archive / New Jersey / Flash Flood Warnings in 2024
Flash Flood Warning 26, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 2, 2024, 9:40 PM EDT for New Castle County, Delaware; Camden County, Gloucester County, Salem County, New Jersey; Delaware County, Philadelphia County, Pennsylvania. It was in force for 4 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
- Aug 2, 2024, 9:40 PM EDT (01:40 UTC)
- Expired
- Aug 3, 2024, 1:27 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties New Castle County, DE, Camden County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 82 km from the middle of the area, began a volume at 01:40 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
Washington/Dulle, VA (KIAD), launched 00:00Z, 1.7 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
- 697 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 2020 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
183
WGUS51 KPHI 030140
FFWPHI
DEC003-NJC007-015-033-PAC045-101-030545-
/O.NEW.KPHI.FF.W.0026.240803T0140Z-240803T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
940 PM EDT Fri Aug 2 2024
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Northeastern New Castle County in northern Delaware...
West Central Camden County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
Northwestern Salem County in southern New Jersey...
Southeastern Delaware County in southeastern Pennsylvania...
Southwestern Philadelphia County in southeastern Pennsylvania...
* Until 145 AM EDT.
* At 940 PM EDT, Doppler radar indicated thunderstorms producing
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...
Philadelphia, Camden, Wilmington, Gloucester City, Chester,
Deptford, West Deptford, Pennsville, Bellmawr, Yeadon, Woodbury
and Carneys Point.
This includes the following highways...
Interstate 295 in New Jersey between mile markers 0 and 33.
New Jersey Turnpike between exits 1 and 3.
Interstate 76 in Pennsylvania between mile markers 345 and 351.
Interstate 95 in Pennsylvania between mile markers 8 and 21.
Interstate 676 in Pennsylvania near mile marker 1.
Interstate 676 in New Jersey between mile markers 0 and 3.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 95 in Delaware between mile markers 6 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3978 7548 3992 7525 3996 7517 3988 7498
3976 7516 3965 7536 3955 7556 3968 7569
FLASH FLOOD...RADAR INDICATED
$$
Fitzsimmons2 follow-up statements
849
WGUS71 KPHI 030405
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
1205 AM EDT Sat Aug 3 2024
DEC003-NJC007-015-033-PAC045-101-030545-
/O.CON.KPHI.FF.W.0026.000000T0000Z-240803T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Camden NJ-Gloucester NJ-Salem NJ-Delaware PA-
Philadelphia PA-
1205 AM EDT Sat Aug 3 2024
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM EDT EARLY THIS
MORNING FOR NORTHEASTERN NEW CASTLE, WEST CENTRAL CAMDEN,
NORTHWESTERN GLOUCESTER, NORTHWESTERN SALEM, SOUTHEASTERN DELAWARE
AND SOUTHWESTERN PHILADELPHIA COUNTIES...
At 1205 AM EDT, Doppler radar indicated thunderstorms producing
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...
Philadelphia, Camden, Wilmington, Gloucester City, Chester,
Deptford, West Deptford, Pennsville, Bellmawr, Yeadon, Woodbury
and Carneys Point.
This includes the following highways...
Interstate 295 in New Jersey between mile markers 0 and 33.
New Jersey Turnpike between exits 1 and 3.
Interstate 76 in Pennsylvania between mile markers 345 and 351.
Interstate 95 in Pennsylvania between mile markers 8 and 21.
Interstate 676 in New Jersey between mile markers 0 and 2.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 95 in Delaware between mile markers 6 and 13.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
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 3978 7548 3992 7525 3996 7517 3988 7498
3976 7516 3965 7536 3955 7556 3968 7569
FLASH FLOOD...RADAR INDICATED
$$
MPS769
WGUS71 KPHI 030527
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
127 AM EDT Sat Aug 3 2024
DEC003-NJC007-015-033-PAC045-101-030537-
/O.CAN.KPHI.FF.W.0026.000000T0000Z-240803T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Camden NJ-Gloucester NJ-Salem NJ-Delaware PA-
Philadelphia PA-
127 AM EDT Sat Aug 3 2024
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN NEW CASTLE,
WEST CENTRAL CAMDEN, NORTHWESTERN GLOUCESTER, NORTHWESTERN SALEM,
SOUTHEASTERN DELAWARE AND SOUTHWESTERN PHILADELPHIA COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
&&
LAT...LON 3978 7548 3992 7525 3996 7517 3988 7498
3976 7516 3965 7536 3955 7556 3968 7569
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 9:12 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 48 min |
| Aug 3, 3:17 AM EDT | Heat Advisory | PHI | New Castle | 17 hr |
| Aug 3, 12:20 PM EDT | Flood Watch | PHI | New Castle | 9 hr |
| Aug 3, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 97 min |
| Aug 3, 7:15 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 60 min |
| Aug 2, 10:31 PM EDT | Flash Flood Warning | PHI | Burlington, Camden | 4 hr |
| Aug 3, 1:27 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 48 min |
| Aug 3, 2:05 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 55 min |
| Aug 3, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 45 min |
| Aug 3, 5:40 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Aug 3, 6:04 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 41 min |
| Aug 3, 6:16 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 59 min |
| Aug 3, 6:31 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 74 min |
| Aug 3, 6:49 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset | 56 min |
| Aug 3, 6:52 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Aug 3, 7:25 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Aug 3, 7:30 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Aug 3, 7:57 PM EDT | Special Marine Warning | PHI | 63 min | |
| Aug 3, 2:40 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 65 min |
| Aug 3, 2:53 PM EDT | Flash Flood Warning | PHI | Carbon | 117 min |
| Aug 3, 4:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 47 min |
Nearby
Flash Flood Warnings in New Jersey, 2024Flash Flood Warnings in Pennsylvania, 2024Flash Flood Warnings in Delaware, 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.