Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 172, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 9, 2025, 7:21 PM EDT for 4 counties in New Jersey. It was in force for 28 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 9, 2025, 7:21 PM EDT (23:21 UTC)
- Expired
- Jul 9, 2025, 7:49 PM EDT
- In force
- 28 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 79 km from the middle of the area, began a volume at 23:21 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 9, 5:31 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.4 hours before the alert went out and 176 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
- 630 J/kg
- Mixed-layer CIN
- -108 J/kg
- Mixed-layer LCL
- 1004 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 97 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
863
WUUS51 KPHI 092321
SVRPHI
NJC001-011-015-033-100000-
/O.NEW.KPHI.SV.W.0172.250709T2321Z-250710T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
721 PM EDT Wed Jul 9 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
West central Atlantic County in southern New Jersey...
Northern Cumberland County in southern New Jersey...
East central Salem County in southern New Jersey...
Southeastern Gloucester County in southern New Jersey...
* Until 800 PM EDT.
* At 721 PM EDT, a severe thunderstorm was located over Seabrook
Farms, or near Bridgeton, moving east 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...
Vineland, Bridgeton, Buena, Newfield, Elmer, Shiloh, Franklinville,
Victory Lakes, Williamstown, Olivet, Malaga, Seabrook Farms,
Rosenhayn, Monroe Township, and Centerton.
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 3942 7530 3950 7534 3969 7498 3947 7486
TIME...MOT...LOC 2321Z 248DEG 19KT 3950 7521
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann2 follow-up statements
935
WWUS51 KPHI 092339
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
739 PM EDT Wed Jul 9 2025
NJC001-011-015-033-100000-
/O.CON.KPHI.SV.W.0172.000000T0000Z-250710T0000Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Gloucester NJ-
739 PM EDT Wed Jul 9 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR WEST CENTRAL ATLANTIC...NORTHEASTERN CUMBERLAND...EAST CENTRAL
SALEM AND SOUTHEASTERN GLOUCESTER COUNTIES...
At 738 PM EDT, a severe thunderstorm was located over Olivet, or 8
miles northwest of Vineland, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Vineland, Buena, Newfield, Franklinville, Victory Lakes,
Williamstown, Olivet, Malaga, Seabrook Farms, Rosenhayn, Monroe
Township, and Centerton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3946 7521 3952 7524 3969 7498 3947 7486
TIME...MOT...LOC 2338Z 248DEG 17KT 3952 7513
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann127 WWUS51 KPHI 092349 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 749 PM EDT Wed Jul 9 2025 NJC001-011-015-033-092359- /O.CAN.KPHI.SV.W.0172.000000T0000Z-250710T0000Z/ Atlantic NJ-Cumberland NJ-Salem NJ-Gloucester NJ- 749 PM EDT Wed Jul 9 2025 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ATLANTIC... NORTHEASTERN CUMBERLAND...EAST CENTRAL SALEM AND SOUTHEASTERN GLOUCESTER COUNTIES IS CANCELLED... 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 has been cancelled. However gusty winds and heavy rain are still possible with this thunderstorm. 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 3946 7521 3952 7524 3969 7498 3947 7486 TIME...MOT...LOC 2347Z 248DEG 19KT 3954 7506 $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 9:52 PM EDT | Flood Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 7 more | 26 hr |
| Jul 9, 5:41 PM EDT | Special Marine Warning | PHI | 64 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2025Every severe thunderstorm warning in 2025
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.