Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 174, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 5, 2023, 6:30 PM EDT for Gloucester County, New Jersey; Delaware County, Pennsylvania. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 5, 2023, 6:30 PM EDT (22:30 UTC)
- Expired
- Jul 5, 2023, 7:00 PM EDT
- In force
- 30 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Gloucester County, NJ, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 78 km from the middle of the area, began a volume at 22:30 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 12:00Z, 10.5 hours before the alert went out and 204 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
- 275 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1031 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
241
WUUS51 KPHI 052230
SVRPHI
NJC015-PAC045-052300-
/O.NEW.KPHI.SV.W.0174.230705T2230Z-230705T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
630 PM EDT Wed Jul 5 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Gloucester County in southern New Jersey...
Southeastern Delaware County in southeastern Pennsylvania...
* Until 700 PM EDT.
* At 629 PM EDT, a severe thunderstorm was located over Gibbstown, or
10 miles southwest of Gloucester City, and is nearly stationary.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Chester, West Deptford, Paulsboro, National Park, Swedesboro,
Philadelphia International Arpt, Mullica Hill, Gibbstown, Tinicum
Township, Beckett, Ridley Park, Prospect Park, Norwood, Eddystone,
Woodlyn and Folsom.
This includes the following highways...
New Jersey Turnpike near exit 2.
Interstate 95 in Pennsylvania between mile markers 6 and 10.
Interstate 295 in New Jersey between mile markers 11 and 21.
Interstate 476 in Pennsylvania near mile marker 0.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3989 7534 3986 7518 3972 7519 3977 7540
3978 7540
TIME...MOT...LOC 2229Z 016DEG 1KT 3982 7528
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB2 follow-up statements
822
WWUS51 KPHI 052243
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
643 PM EDT Wed Jul 5 2023
NJC015-PAC045-052300-
/O.CON.KPHI.SV.W.0174.000000T0000Z-230705T2300Z/
Gloucester NJ-Delaware PA-
643 PM EDT Wed Jul 5 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHWESTERN GLOUCESTER AND SOUTHEASTERN DELAWARE COUNTIES...
At 643 PM EDT, a severe thunderstorm was located over Gibbstown, or
10 miles southwest of Gloucester City, and is nearly stationary.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Chester, West Deptford, Paulsboro, National Park, Swedesboro,
Philadelphia International Arpt, Mullica Hill, Gibbstown, Tinicum
Township, Beckett, Ridley Park, Prospect Park, Norwood, Eddystone,
Woodlyn and Folsom.
This includes the following highways...
New Jersey Turnpike near exit 2.
Interstate 95 in Pennsylvania between mile markers 6 and 10.
Interstate 295 in New Jersey between mile markers 11 and 21.
Interstate 476 in Pennsylvania near mile marker 0.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3989 7534 3986 7518 3972 7519 3977 7540
3978 7540
TIME...MOT...LOC 2243Z 016DEG 1KT 3982 7528
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB123
WWUS51 KPHI 052259
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
659 PM EDT Wed Jul 5 2023
NJC015-PAC045-052308-
/O.EXP.KPHI.SV.W.0174.000000T0000Z-230705T2300Z/
Gloucester NJ-Delaware PA-
659 PM EDT Wed Jul 5 2023
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN GLOUCESTER AND
SOUTHEASTERN DELAWARE COUNTIES WILL EXPIRE AT 700 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with this thunderstorm.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3989 7534 3986 7518 3972 7519 3977 7540
3978 7540
TIME...MOT...LOC 2258Z 016DEG 1KT 3982 7528
$$
MLBThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 8:41 PM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean | 7 hr |
| Jul 4, 10:15 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 3 hr |
| Jul 5, 3:21 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean | 24 hr |
| Jul 5, 1:37 PM EDT | Special Weather Statement | PHI | Ocean | 23 min |
| Jul 5, 5:26 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 34 min |
| Jul 5, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 33 min |
| Jul 5, 6:12 PM EDT | Areal Flood Advisory | PHI | Camden, Gloucester | 4 hr |
| Jul 5, 5:22 PM EDT | Areal Flood Advisory | PHI | Delaware, Philadelphia | 3 hr |
| Jul 5, 5:45 PM EDT | Flash Flood Warning | PHI | Delaware, Philadelphia | 107 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2023Severe Thunderstorm Warnings in Pennsylvania, 2023Every severe thunderstorm 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.