Alert archive / New Jersey / Flash Flood Warnings in 2023
Flash Flood Warning 91, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 13, 2023, 3:33 AM EDT for Atlantic County, Cape May County, Cumberland 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
- Sep 13, 2023, 3:33 AM EDT (07:33 UTC)
- Expired
- Sep 13, 2023, 6:27 AM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ
The radar
The Dover AFB radar (KDOX), 70 km from the middle of the area, began a volume at 07:34 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.6 hours before the alert went out and 161 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
- 660 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1174 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 25 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
023
WGUS51 KPHI 130733
FFWPHI
NJC001-009-011-131145-
/O.NEW.KPHI.FF.W.0091.230913T0733Z-230913T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
333 AM EDT Wed Sep 13 2023
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Southwestern Atlantic County in southern New Jersey...
Northwestern Cape May County in southern New Jersey...
Southeastern Cumberland County in southern New Jersey...
* Until 745 AM EDT.
* At 333 AM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 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...
Vineland, Millville, Cumberland, Laurel Lake, Woodbine, Estell
Manor, Corbin City, Bricksboro, Port Elizabeth, Belleplain Forest,
Mauricetown, and Leesburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
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 3942 7509 3946 7510 3946 7509 3946 7508
3949 7474 3930 7477 3914 7480 3913 7489
3912 7502
FLASH FLOOD...RADAR INDICATED
$$
MPS2 follow-up statements
751
WGUS71 KPHI 130918
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
518 AM EDT Wed Sep 13 2023
NJC001-009-011-131145-
/O.CON.KPHI.FF.W.0091.000000T0000Z-230913T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Cape May NJ-Cumberland NJ-
518 AM EDT Wed Sep 13 2023
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM EDT THIS
MORNING FOR SOUTHWESTERN ATLANTIC, NORTHWESTERN CAPE MAY, AND
SOUTHEASTERN CUMBERLAND COUNTIES...
At 518 AM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. Additional rainfall amounts of 0.5 to 1 inch are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that may experience flash flooding include...
Vineland, Millville, Cumberland, Laurel Lake, Woodbine, Estell
Manor, Corbin City, Bricksboro, Port Elizabeth, Belleplain Forest,
Mauricetown, and Leesburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 3942 7509 3946 7510 3946 7509 3946 7508
3949 7474 3930 7477 3914 7480 3913 7489
3912 7502
FLASH FLOOD...RADAR INDICATED
$$
MPS711
WGUS71 KPHI 131027
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
627 AM EDT Wed Sep 13 2023
NJC001-009-011-131037-
/O.CAN.KPHI.FF.W.0091.000000T0000Z-230913T1145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-Cape May NJ-Cumberland NJ-
627 AM EDT Wed Sep 13 2023
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHWESTERN ATLANTIC,
NORTHWESTERN CAPE MAY, AND SOUTHEASTERN CUMBERLAND COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat.
LAT...LON 3942 7509 3946 7510 3946 7509 3946 7508
3949 7474 3930 7477 3914 7480 3913 7489
3912 7502
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 12:52 AM EDT | Special Marine Warning | PHI | 38 min | |
| Sep 13, 1:15 AM EDT | Special Weather Statement | PHI | Salem | 30 min |
| Sep 13, 1:38 AM EDT | Special Marine Warning | PHI | 52 min | |
| Sep 13, 1:43 AM EDT | Special Weather Statement | PHI | Salem | 32 min |
| Sep 13, 2:30 AM EDT | Special Weather Statement | PHI | Gloucester | 30 min |
| Sep 13, 2:35 AM EDT | Special Marine Warning | PHI | 55 min | |
| Sep 13, 2:43 AM EDT | Special Weather Statement | PHI | Cumberland | 32 min |
| Sep 13, 2:45 AM EDT | Flash Flood Warning | PHI | Cumberland, Salem | 3 hr |
| Sep 13, 2:55 AM EDT | Special Weather Statement | PHI | Cape May | 35 min |
| Sep 13, 3:21 AM EDT | Special Marine Warning | PHI | 54 min | |
| Sep 13, 3:36 AM EDT | Special Weather Statement | PHI | Cape May | 24 min |
| Sep 13, 3:38 AM EDT | Special Marine Warning | PHI | 67 min | |
| Sep 13, 3:55 AM EDT | Special Marine Warning | PHI | 65 min | |
| Sep 13, 4:01 AM EDT | Special Weather Statement | PHI | Cape May | 29 min |
| Sep 13, 4:25 AM EDT | Special Weather Statement | PHI | Cape May | 35 min |
| Sep 13, 4:36 AM EDT | Special Marine Warning | PHI | 54 min | |
| Sep 13, 4:47 AM EDT | Special Marine Warning | PHI | 58 min | |
| Sep 13, 5:32 AM EDT | Special Marine Warning | PHI | 58 min | |
| Sep 13, 5:42 PM EDT | Special Marine Warning | PHI | 48 min |
Nearby
Flash Flood Warnings in New Jersey, 2023Every flash flood warning in 2023
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.