Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 355, NWS Philadelphia/Mount Holly

September 1, 2026Camden County, Gloucester County, Salem County, New Jersey

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

TimeReportWhereRemark
Sep 1, 8:58 PM EDTTSTM WND DMG1 Se Mullica Hill, NJFire Dept reports numerous tree and wires down in Harrison Twp. Time estimated.
Sep 1, 8:58 PM EDTTSTM WND DMG1 W Mantua Twp, NJNumerous trees and power lines down with numerous power outages. Time estimated from radar.
Sep 1, 8:58 PM EDTTSTM WND DMGMantua, NJFire 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 EDTTSTM WND DMGMantua, NJFire Dept reports numerous tree and wires down in Mantua Twp. Time estimated.
Sep 1, 9:01 PM EDTTSTM WND DMG1 Wsw Woodbury Heights, NJMultiple pictures of trees uprooted in Greenfield Heights section of West Deptford. Time estimated.
Sep 1, 9:01 PM EDTTSTM WND DMGMantua, NJDowned 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 EDTTSTM WND DMGPitman, NJLarge 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.

IssuedProductOfficeLasted
Sep 1, 4:32 PM EDTSevere Thunderstorm WatchSPC7 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2026-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1278 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2026-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

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

$$

Staarmann
2 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

$$

Staarmann
804 
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 

$$

Staarmann

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 1, 8:05 PM EDTSpecial Marine WarningPHI85 min
Sep 1, 8:08 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean52 min
Sep 1, 8:11 PM EDTSpecial Marine WarningPHI94 min
Sep 1, 8:17 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem58 min
Sep 1, 8:26 PM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Cumberland, Gloucester49 min
Sep 1, 8:44 PM EDTFlash Flood WarningPHIGloucester, Salem3 hr
Sep 1, 8:46 PM EDTSevere Thunderstorm Warning Destructive damage threatPHICumberland, Salem59 min
Sep 1, 9:04 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean71 min
Sep 1, 9:07 PM EDTTornado WarningPHIBurlington21 min
Sep 1, 9:16 PM EDTTornado WarningPHIBurlington12 min
Sep 1, 9:19 PM EDTFlash Flood WarningPHIHunterdon, Mercer, Middlesex116 min
Sep 1, 9:22 PM EDTSpecial Marine WarningPHI68 min
Sep 1, 9:25 PM EDTSpecial Marine WarningPHI95 min
Sep 1, 9:26 PM EDTFlash Flood WarningPHIAtlantic, Camden, Gloucester115 min
Sep 1, 9:33 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cape May, Ocean57 min
Sep 1, 9:54 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland42 min
Sep 1, 10:06 PM EDTSpecial Marine WarningPHI84 min
Sep 1, 10:48 PM EDTSpecial Marine WarningPHI57 min
Sep 1, 11:12 PM EDTSpecial Marine WarningPHI63 min
Sep 2, 3:53 AM EDTHeat AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Monmouth, Ocean40 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.