Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 355, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 1, 2026, 8:57 PM EDT for Camden County, Gloucester County, Salem County, New Jersey. It was in force for 48 min. 7 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
- Sep 1, 2026, 8:57 PM EDT (00:57 UTC)
- Expired
- Sep 1, 2026, 9:45 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Camden County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 00:58 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 |
|---|---|---|---|
| Sep 1, 8:58 PM EDT | TSTM WND DMG | 1 Se Mullica Hill, NJ | Fire Dept reports numerous tree and wires down in Harrison Twp. Time estimated. |
| Sep 1, 8:58 PM EDT | TSTM WND DMG | 1 W Mantua Twp, NJ | Numerous trees and power lines down with numerous power outages. Time estimated from radar. |
| Sep 1, 8:58 PM EDT | TSTM WND DMG | Mantua, NJ | Fire Dept reports a tree into a house with 2 people trapped on Main Street in Mantua. No known injuries at time of report. |
| Sep 1, 8:58 PM EDT | TSTM WND DMG | Mantua, NJ | Fire Dept reports numerous tree and wires down in Mantua Twp. Time estimated. |
| Sep 1, 9:01 PM EDT | TSTM WND DMG | 1 Wsw Woodbury Heights, NJ | Multiple pictures of trees uprooted in Greenfield Heights section of West Deptford. Time estimated. |
| Sep 1, 9:01 PM EDT | TSTM WND DMG | Mantua, NJ | Downed Tree/Wires on NJ 45 Both Directions North of CR 632/Berkeley Rd/Mantua Rd (Mantua Twp), All lanes closed northbound; All lanes closed southbound. Time estimated from radar. |
| Sep 1, 9:03 PM EDT | TSTM WND DMG | Pitman, NJ | Large tree branch down near Pitman. Time estimated from radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 1, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 1.0 hours before the alert went out and 214 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
- 1278 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 1771 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.1
The text
As transmitted.
987
WUUS51 KPHI 020057
SVRPHI
NJC007-015-033-020145-
/O.NEW.KPHI.SV.W.0355.260902T0057Z-260902T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
857 PM EDT Tue Sep 1 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
East central Salem County in southern New Jersey...
Southwestern Camden County in southern New Jersey...
Gloucester County in southern New Jersey...
* Until 945 PM EDT.
* At 857 PM EDT, a severe thunderstorm was located near Mullica Hill,
or 9 miles southwest of Gloucester City, moving southeast at 20
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Deptford, West Deptford, Glassboro, Woodbury, Pitman, Clayton,
Paulsboro, Woodbury Heights, National Park, Newfield, Elmer,
Franklinville, Victory Lakes, Sicklerville, Williamstown, Malaga,
Mullica Hill, Gibbstown, Turnersville, and Monroe Township.
This includes the following highways...
New Jersey Turnpike near exit 2.
Interstate 295 in New Jersey between mile markers 14 and 24.
Atlantic City Expressway between mile markers 30 and 44.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3954 7502 3956 7505 3955 7507 3951 7508
3950 7510 3981 7533 3988 7517 3966 7481
TIME...MOT...LOC 0057Z 318DEG 19KT 3977 7519
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann2 follow-up statements
633
WWUS51 KPHI 020116
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
916 PM EDT Tue Sep 1 2026
NJC007-015-033-020145-
/O.CON.KPHI.SV.W.0355.000000T0000Z-260902T0145Z/
Salem NJ-Camden NJ-Gloucester NJ-
916 PM EDT Tue Sep 1 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR EAST CENTRAL SALEM...SOUTH CENTRAL CAMDEN AND SOUTHEASTERN
GLOUCESTER COUNTIES...
At 916 PM EDT, a severe thunderstorm was located over Franklinville,
or 10 miles northwest of Vineland, moving southeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Glassboro, Pitman, Clayton, Newfield, Elmer, Franklinville, Victory
Lakes, Sicklerville, Williamstown, Malaga, Monroe Township, and
Turnersville.
This includes Atlantic City Expressway between mile markers 30 and
40.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3954 7502 3956 7505 3955 7507 3951 7508
3950 7510 3968 7524 3977 7509 3966 7481
TIME...MOT...LOC 0116Z 329DEG 26KT 3961 7508
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann804
WWUS51 KPHI 020135
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
935 PM EDT Tue Sep 1 2026
NJC007-015-033-020145-
/O.EXP.KPHI.SV.W.0355.000000T0000Z-260902T0145Z/
Salem NJ-Camden NJ-Gloucester NJ-
935 PM EDT Tue Sep 1 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SALEM...SOUTH
CENTRAL CAMDEN AND SOUTHEASTERN GLOUCESTER COUNTIES WILL EXPIRE AT
945 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until midnight EDT for
southern New Jersey.
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 3954 7502 3956 7505 3955 7507 3951 7508
3950 7510 3968 7524 3977 7509 3966 7481
TIME...MOT...LOC 0135Z 318DEG 19KT 3954 7499
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 8:05 PM EDT | Special Marine Warning | PHI | 85 min | |
| Sep 1, 8:08 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 52 min |
| Sep 1, 8:11 PM EDT | Special Marine Warning | PHI | 94 min | |
| Sep 1, 8:17 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 58 min |
| Sep 1, 8:26 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester | 49 min |
| Sep 1, 8:44 PM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 3 hr |
| Sep 1, 8:46 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 59 min |
| Sep 1, 9:04 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 71 min |
| Sep 1, 9:07 PM EDT | Tornado Warning | PHI | Burlington | 21 min |
| Sep 1, 9:16 PM EDT | Tornado Warning | PHI | Burlington | 12 min |
| Sep 1, 9:19 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex | 116 min |
| Sep 1, 9:22 PM EDT | Special Marine Warning | PHI | 68 min | |
| Sep 1, 9:25 PM EDT | Special Marine Warning | PHI | 95 min | |
| Sep 1, 9:26 PM EDT | Flash Flood Warning | PHI | Atlantic, Camden, Gloucester | 115 min |
| Sep 1, 9:33 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cape May, Ocean | 57 min |
| Sep 1, 9:54 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 42 min |
| Sep 1, 10:06 PM EDT | Special Marine Warning | PHI | 84 min | |
| Sep 1, 10:48 PM EDT | Special Marine Warning | PHI | 57 min | |
| Sep 1, 11:12 PM EDT | Special Marine Warning | PHI | 63 min | |
| Sep 2, 3:53 AM EDT | Heat Advisory | PHI | Burlington, Camden, Gloucester, Mercer, Monmouth, Ocean | 40 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2026Every severe thunderstorm warning in 2026
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.