Alert archive / New Jersey / Flash Flood Warnings in 2023
Flash Flood Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 23, 2023, 4:19 PM EDT for Camden County, Gloucester County, Salem County, New Jersey; Delaware County, Montgomery County, Philadelphia County, Pennsylvania; New Castle County, Delaware. It was in force for 4 hr. 12 reports 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
- Jun 23, 2023, 4:19 PM EDT (20:19 UTC)
- Expired
- Jun 23, 2023, 7:51 PM 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, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 86 km from the middle of the area, began a volume at 20:19 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 |
|---|---|---|---|
| Jun 23, 4:21 PM EDT | FLOOD | 1 Se Kensington, PA | Lane Restriction on I-95 southbound at Exit 23 Girard Ave and Lehigh Ave due to flooding. |
| Jun 23, 4:21 PM EDT | FLOOD | 1 Se Kensington, PA | Lane Restriction on I-95 southbound at Exit 23 Girard Ave and Lehigh Ave due to flooding. |
| Jun 23, 4:40 PM EDT | FLASH FLOOD | Chester Twp, PA | Lane closure on I-95 near Exit 4 at the Commodore Barry Bridge with standing water seen on the shoulder and getting into the right traffic lane. |
| Jun 23, 4:40 PM EDT | FLASH FLOOD | Chester Twp, PA | Lane closure on I-95 near Exit 4 at the Commodore Barry Bridge with standing water seen on the shoulder and getting into the right traffic lane. |
| Jun 23, 5:27 PM EDT | FLASH FLOOD | 1 Wsw Bridesburg, PA | PENNDOT reports 2 lanes closed on I-95 S near the Betsy Ross Bridge and Aramingo Avenue. |
| Jun 23, 5:27 PM EDT | FLASH FLOOD | 1 Wsw Bridesburg, PA | PENNDOT reports 2 lanes closed on I-95 S near the Betsy Ross Bridge and Aramingo Avenue. |
| Jun 23, 5:28 PM EDT | FLASH FLOOD | Brooklawn, NJ | NJ DOT reports flooding in both directions on Route 130 near CR551. |
| Jun 23, 5:28 PM EDT | FLASH FLOOD | Brooklawn, NJ | NJ DOT reports flooding in both directions on Route 130 near CR551. |
| Jun 23, 6:06 PM EDT | FLASH FLOOD | Eddystone, PA | Flooding on I-95 southbound at Exit: MacDade Blvd. There is a ramp closure. |
| Jun 23, 6:06 PM EDT | FLASH FLOOD | Eddystone, PA | Flooding on I-95 southbound at Exit: MacDade Blvd. There is a ramp closure. |
| Jun 23, 6:42 PM EDT | FLASH FLOOD | 1 N Belmont, PA | Flooding on I-76 westbound between Exit 342 US 13 and US 30 West and Exit 341 Montgomery Dr and River Dr. There is a lane restriction. |
| Jun 23, 6:42 PM EDT | FLASH FLOOD | 1 N Belmont, PA | Flooding on I-76 westbound between Exit 342 US 13 and US 30 West and Exit 341 Montgomery Dr and River Dr. There is a lane restriction. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.3 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
- 6 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 453 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 165 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
030
WGUS51 KPHI 232019
FFWPHI
DEC003-NJC007-015-033-PAC045-091-101-240030-
/O.NEW.KPHI.FF.W.0008.230623T2019Z-230624T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
419 PM EDT Fri Jun 23 2023
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Northern New Castle County in northern Delaware...
Northwestern Camden County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
Northwestern Salem County in southern New Jersey...
Delaware County in southeastern Pennsylvania...
South Central Montgomery County in southeastern Pennsylvania...
Philadelphia County in southeastern Pennsylvania...
* Until 830 PM EDT.
* At 419 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1 and 2 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...
Philadelphia, Camden, Wilmington, Newark, Gloucester City,
Chester, West Deptford, Pennsville, Bellmawr, Yeadon, Woodbury,
and Carneys Point.
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 0 and 28.
Interstate 95 in Delaware between mile markers 0 and 23.
Interstate 76 in Pennsylvania between mile markers 330 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 0 and 28.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
Interstate 476 in Pennsylvania between mile markers 0 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 3963 7563 3962 7579 3971 7579 3978 7573
3984 7560 3991 7554 3999 7544 4003 7540
4005 7540 4011 7528 4008 7517 4001 7505
3999 7506 3999 7503 3986 7508 3980 7527
3957 7555
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
Staarmann3 follow-up statements
985
WGUS71 KPHI 232113
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
513 PM EDT Fri Jun 23 2023
DEC003-NJC007-015-033-PAC045-091-101-240030-
/O.CON.KPHI.FF.W.0008.000000T0000Z-230624T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Camden NJ-Gloucester NJ-Salem NJ-Delaware PA-
Montgomery PA-Philadelphia PA-
513 PM EDT Fri Jun 23 2023
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT THIS
EVENING FOR NORTHERN NEW CASTLE, NORTHWESTERN CAMDEN, NORTHWESTERN
GLOUCESTER, NORTHWESTERN SALEM, DELAWARE, SOUTH CENTRAL MONTGOMERY,
AND PHILADELPHIA COUNTIES...
At 513 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between 1
and 2 inches of rain have fallen. The expected rainfall rate is 0.5
to 1 inch in 1 hour. Additional rainfall amounts of 0.5 to 1 inch
are possible in the warned area. Flash flooding is already occurring.
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...
Philadelphia, Camden, Wilmington, Newark, Gloucester City,
Chester, West Deptford, Pennsville, Bellmawr, Yeadon, Woodbury,
and Carneys Point.
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 0 and 28.
Interstate 95 in Delaware between mile markers 1 and 23.
Interstate 76 in Pennsylvania between mile markers 331 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 0 and 28.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
Interstate 476 in Pennsylvania between mile markers 0 and 19.
Scattered showers and thunderstorms will continue impacting the
warned area through this evening.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 3963 7563 3962 7579 3968 7577 3984 7556
3991 7544 4001 7536 4003 7537 4008 7533
4011 7528 4008 7517 4001 7505 3999 7506
3999 7503 3986 7508 3979 7531 3957 7555
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR
$$
Staarmann019
WGUS71 KPHI 232301
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
701 PM EDT Fri Jun 23 2023
NJC007-015-PAC045-091-101-232311-
/O.CAN.KPHI.FF.W.0008.000000T0000Z-230624T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Camden NJ-Gloucester NJ-Delaware PA-Montgomery PA-Philadelphia PA-
701 PM EDT Fri Jun 23 2023
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN CAMDEN,
NORTHWESTERN GLOUCESTER, DELAWARE, SOUTH CENTRAL MONTGOMERY, AND
PHILADELPHIA COUNTIES...
Flooding is no longer expected to pose a significant threat. Please
continue to heed remaining road closures. Scattered showers and
thunderstorms will remain possible overnight, which may result in
additional minor flooding in urban and poor drainage areas.
LAT...LON 3963 7563 3962 7579 3963 7579 3968 7577
3984 7556 3983 7550 3982 7546 3981 7543
3980 7541 3978 7544 3979 7541 3978 7540
3976 7541 3975 7539 3975 7538 3974 7538
3973 7538 3957 7555
$$
DEC003-NJC033-240030-
/O.CON.KPHI.FF.W.0008.000000T0000Z-230624T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Salem NJ-
701 PM EDT Fri Jun 23 2023
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM EDT THIS
EVENING FOR NORTHERN NEW CASTLE AND NORTHWESTERN SALEM COUNTIES...
At 701 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between 1
and 2 inches of rain have fallen. Additional rainfall amounts up to
0.5 inches are possible in the warned area. Flash flooding is
already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that may experience flash flooding include...
Wilmington, Newark, Pennsville, Carneys Point, Elsmere, New
Castle, Penns Grove, Newport, Arden, Wilmington Manor, Delaware
Memorial Bridge, and Stanton.
This includes the following highways...
Interstate 95 in Delaware between mile markers 1 and 23.
Interstate 295 in New Jersey between mile markers 0 and 8.
Scattered showers and thunderstorms will continue impacting the
warned area through this evening.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
&&
LAT...LON 3963 7563 3962 7579 3963 7579 3968 7577
3984 7556 3983 7550 3982 7546 3981 7543
3980 7541 3978 7544 3979 7541 3978 7540
3976 7541 3975 7539 3975 7538 3974 7538
3973 7538 3957 7555
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Staarmann854
WGUS71 KPHI 232351 RRA
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
751 PM EDT Fri Jun 23 2023
DEC003-NJC033-240001-
/O.CAN.KPHI.FF.W.0008.000000T0000Z-230624T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Salem NJ-
751 PM EDT Fri Jun 23 2023
...FLASH FLOOD WARNING IS CANCELLED FOR NORTHERN NEW CASTLE AND
NORTHWESTERN SALEM COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Scattered showers and thunderstorms will remain possible
overnight, which may result in additional minor flooding in urban
and poor drainage areas.
LAT...LON 3963 7563 3962 7579 3963 7579 3968 7577
3984 7556 3983 7550 3982 7546 3981 7543
3980 7541 3978 7544 3979 7541 3978 7540
3976 7541 3975 7539 3975 7538 3974 7538
3973 7538 3957 7555
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 2:58 PM EDT | Areal Flood Advisory | PHI | Salem | 83 min |
| Jun 23, 3:50 PM EDT | Areal Flood Advisory | PHI | Camden, Gloucester, Salem | 30 min |
| Jun 23, 4:32 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Mercer | 3 hr |
| Jun 23, 2:08 PM EDT | Special Weather Statement | PHI | Kent | 37 min |
| Jun 23, 2:39 PM EDT | Special Weather Statement | PHI | Kent | 36 min |
| Jun 23, 4:00 PM EDT | Flash Flood Warning | PHI | New Castle | 4 hr |
Nearby
Flash Flood Warnings in New Jersey, 2023Flash Flood Warnings in Pennsylvania, 2023Flash Flood Warnings in Delaware, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.