Alert archive / New Jersey / Flash Flood Warnings in 2023
Flash Flood Warning 79, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 8, 2023, 3:29 PM EDT for Burlington County, Ocean County, New Jersey. 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
- Sep 8, 2023, 3:29 PM EDT (19:29 UTC)
- Expired
- Sep 8, 2023, 7:30 PM EDT
- In force
- 4 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), 10 km from the middle of the area, began a volume at 19:28 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, 7.5 hours before the alert went out and 167 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
- 2469 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 566 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.0
The text
As transmitted.
413
WGUS51 KPHI 081929
FFWPHI
NJC005-029-082330-
/O.NEW.KPHI.FF.W.0079.230908T1929Z-230908T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
329 PM EDT Fri Sep 8 2023
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Northeastern Burlington County in southern New Jersey...
Northwestern Ocean County in southern New Jersey...
* Until 730 PM EDT.
* At 329 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 4 inches of rain have fallen. The expected rainfall rate is
1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 3
inches are possible in the warned area. Flash flooding is ongoing
or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
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...
Woodruff, Browns Mills, New Egypt, Country Lake Estates, and Fort
Dix.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 4010 7443 4005 7435 3993 7450 3992 7454
3994 7456 3999 7456 4005 7454
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
Staarmann3 follow-up statements
580
WGUS71 KPHI 082014
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
414 PM EDT Fri Sep 8 2023
NJC005-029-082330-
/O.CON.KPHI.FF.W.0079.000000T0000Z-230908T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
414 PM EDT Fri Sep 8 2023
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT THIS
EVENING FOR NORTHEASTERN BURLINGTON AND NORTHWESTERN OCEAN
COUNTIES...
At 414 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between 2
and 5 inches of rain have fallen. The expected rainfall rate is 1 to
2 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that may experience flash flooding include...
Woodruff, Browns Mills, New Egypt, Country Lake Estates, and Fort
Dix.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4010 7443 4005 7435 3993 7450 3992 7454
3994 7456 3999 7456 4005 7454
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
Staarmann630
WGUS71 KPHI 082217
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
617 PM EDT Fri Sep 8 2023
NJC005-029-082330-
/O.CON.KPHI.FF.W.0079.000000T0000Z-230908T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
617 PM EDT Fri Sep 8 2023
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM EDT THIS
EVENING FOR NORTHEASTERN BURLINGTON AND NORTHWESTERN OCEAN
COUNTIES...
At 617 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between 3
and 6 inches of rain have fallen. Flash flooding is ongoing or
expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
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...
Woodruff, Browns Mills, New Egypt, Country Lake Estates, and Fort
Dix.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 4010 7443 4005 7435 3993 7450 3992 7454
3994 7456 3999 7456 4005 7454
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Staarmann417
WGUS71 KPHI 082326 RRA
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
726 PM EDT Fri Sep 8 2023
NJC005-029-082336-
/O.EXP.KPHI.FF.W.0079.000000T0000Z-230908T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
726 PM EDT Fri Sep 8 2023
...FLASH FLOOD WARNING WILL EXPIRE AT 730 PM EDT THIS EVENING FOR
NORTHEASTERN BURLINGTON AND NORTHWESTERN OCEAN COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Do not drive around barricades.
LAT...LON 4010 7443 4005 7435 3993 7450 3992 7454
3994 7456 3999 7456 4005 7454
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 9:46 PM EDT | Special Weather Statement | PHI | Sussex | 29 min |
| Sep 8, 6:02 AM EDT | Special Marine Warning | PHI | 40 min | |
| Sep 8, 1:36 PM EDT | Special Weather Statement | PHI | Burlington | 24 min |
| Sep 8, 1:37 PM EDT | Special Weather Statement | PHI | Monmouth | 23 min |
| Sep 8, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 44 min |
| Sep 8, 1:50 PM EDT | Special Marine Warning | PHI | 115 min | |
| Sep 8, 1:54 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 51 min |
| Sep 8, 2:27 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 48 min |
| Sep 8, 2:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Middlesex, Monmouth, Ocean | 45 min |
| Sep 8, 2:33 PM EDT | Areal Flood Advisory | PHI | Burlington, Monmouth, Ocean | 3 hr |
| Sep 8, 2:44 PM EDT | Special Marine Warning | PHI | 18 min | |
| Sep 8, 2:45 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 45 min |
| Sep 8, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Somerset | 52 min |
| Sep 8, 3:17 PM EDT | Special Marine Warning | PHI | 58 min | |
| Sep 8, 3:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 63 min |
| Sep 8, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 44 min |
| Sep 8, 3:36 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 30 min |
| Sep 8, 3:43 PM EDT | Special Weather Statement | PHI | Middlesex | 32 min |
| Sep 8, 3:58 PM EDT | Special Weather Statement | PHI | Somerset | 32 min |
| Sep 8, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 51 min |
| Sep 8, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 51 min |
| Sep 8, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 60 min |
| Sep 8, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 40 min |
| Sep 8, 5:12 PM EDT | Areal Flood Advisory | PHI | Hunterdon | 3 hr |
| Sep 8, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 46 min |
| Sep 8, 5:21 PM EDT | Flash Flood Warning | PHI | Hunterdon | 4 hr |
| Sep 8, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 41 min |
| Sep 8, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 41 min |
| Sep 8, 6:11 PM EDT | Special Weather Statement | PHI | Warren | 34 min |
| Sep 8, 6:34 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
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.