Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 182, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 16, 2025, 10:44 PM EDT for Cumberland County, Gloucester County, Salem County, New Jersey; New Castle County, Delaware; Delaware County, Pennsylvania. It was in force for 46 min. 3 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
- Jul 16, 2025, 10:44 PM EDT (02:44 UTC)
- Expired
- Jul 16, 2025, 11:30 PM EDT
- In force
- 46 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties New Castle County, DE, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 94 km from the middle of the area, began a volume at 02:44 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 |
|---|---|---|---|
| Jul 16, 10:59 PM EDT | TSTM WND DMG | 1 Sw Marshallton, DE | Report of a tree into a house near Theodora Court and South Woodmill Drive in the Marshallton area of Wilmington. Time estimated from radar. |
| Jul 16, 11:00 PM EDT | TSTM WND GST 47 | Lower Alloways Creek, NJ | NJWxNet at Lower Alloways Creek. |
| Jul 16, 11:00 PM EDT | MARINE TSTM WIND 47 | Lower Alloways Creek, NJ | NJWxNet at Lower Alloways Creek. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 2.7 hours before the alert went out and 194 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
- 2034 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 865 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
608
WUUS51 KPHI 170244
SVRPHI
DEC003-NJC011-015-033-PAC045-170330-
/O.NEW.KPHI.SV.W.0182.250717T0244Z-250717T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1044 PM EDT Wed Jul 16 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
New Castle County in northern Delaware...
Northwestern Cumberland County in southern New Jersey...
Salem County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
South central Delaware County in southeastern Pennsylvania...
* Until 1130 PM EDT.
* At 1043 PM EDT, severe thunderstorms were located along a line
extending from Cherry Hill to near Brantwood to Warwick, moving
east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Wilmington, Newark, Bridgeton, Middletown, Chester, Glassboro,
Pennsville, Carneys Point, Elsmere, New Castle, Penns Grove, Salem,
Woodstown, Alloway, Quinton, Swedesboro, Delaware City, Elmer,
Newport, and Shiloh.
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 these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3988 7538 3970 7514 3945 7521 3940 7577
3971 7579
TIME...MOT...LOC 0243Z 251DEG 40KT 3966 7587 3955 7575 3940 7579
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann3 follow-up statements
242
WWUS51 KPHI 170303
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1103 PM EDT Wed Jul 16 2025
DEC003-NJC011-015-033-PAC045-170330-
/O.CON.KPHI.SV.W.0182.000000T0000Z-250717T0330Z/
New Castle DE-Cumberland NJ-Salem NJ-Gloucester NJ-Delaware PA-
1103 PM EDT Wed Jul 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR NORTHWESTERN NEW CASTLE...NORTHWESTERN CUMBERLAND...SALEM...
NORTHWESTERN GLOUCESTER AND SOUTH CENTRAL DELAWARE COUNTIES...
At 1103 PM EDT, severe thunderstorms were located along a line
extending from Elsmere to near Pennsville to Hope Creek, moving east
at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Wilmington, Newark, Bridgeton, Chester, Glassboro, Pennsville,
Carneys Point, Elsmere, New Castle, Penns Grove, Salem, Woodstown,
Alloway, Quinton, Swedesboro, Delaware City, Elmer, Newport, Shiloh,
and Arden.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3974 7573 3988 7538 3970 7514 3945 7521
3941 7562 3973 7575
TIME...MOT...LOC 0303Z 250DEG 40KT 3973 7562 3962 7549 3947 7553
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann851
WWUS51 KPHI 170319
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1119 PM EDT Wed Jul 16 2025
DEC003-PAC045-170328-
/O.CAN.KPHI.SV.W.0182.000000T0000Z-250717T0330Z/
New Castle DE-Delaware PA-
1119 PM EDT Wed Jul 16 2025
...THE SEVERE THUNDERSTORM WARNING FOR NEW CASTLE AND SOUTH CENTRAL
DELAWARE COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3962 7558 3972 7551 3971 7548 3973 7548
3981 7529 3970 7514 3945 7521 3942 7552
3947 7556 3959 7556 3961 7557
TIME...MOT...LOC 0318Z 254DEG 40KT 3976 7531 3962 7528 3946 7534
$$
NJC011-015-033-170330-
/O.CON.KPHI.SV.W.0182.000000T0000Z-250717T0330Z/
Cumberland NJ-Salem NJ-Gloucester NJ-
1119 PM EDT Wed Jul 16 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR NORTHWESTERN CUMBERLAND...SALEM AND WEST CENTRAL GLOUCESTER
COUNTIES...
At 1118 PM EDT, severe thunderstorms were located along a line
extending from Swedesboro to near Woodstown to near Shiloh, moving
east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Wilmington, Bridgeton, Glassboro, Pennsville, Carneys Point, Penns
Grove, Salem, Woodstown, Alloway, Quinton, Swedesboro, Elmer, Shiloh,
Beckett, Delaware Memorial Bridge, Hancocks Bridge, Newport Meadows,
Hope Creek, Mullica Hill, and Seabrook Farms.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3962 7558 3972 7551 3971 7548 3973 7548
3981 7529 3970 7514 3945 7521 3942 7552
3947 7556 3959 7556 3961 7557
TIME...MOT...LOC 0318Z 254DEG 40KT 3976 7531 3962 7528 3946 7534
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann164
WWUS51 KPHI 170326
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1126 PM EDT Wed Jul 16 2025
NJC011-015-033-170335-
/O.EXP.KPHI.SV.W.0182.000000T0000Z-250717T0330Z/
Cumberland NJ-Salem NJ-Gloucester NJ-
1126 PM EDT Wed Jul 16 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CUMBERLAND...
SALEM AND WEST CENTRAL GLOUCESTER COUNTIES WILL EXPIRE AT 1130 PM
EDT...
The storms which prompted the warning have weakened below severe
limits and no longer pose a significant threat to life or property.
Therefore, the warning will be allowed to expire.
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 3962 7558 3972 7551 3971 7548 3973 7548
3981 7529 3970 7514 3945 7521 3942 7552
3947 7556 3959 7556 3961 7557
TIME...MOT...LOC 0325Z 251DEG 40KT 3978 7522 3964 7519 3948 7525
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 10:00 PM EDT | Special Marine Warning | PHI | 90 min | |
| Jul 16, 10:43 PM EDT | Flash Flood Warning | PHI | New Castle | 2 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2025Severe Thunderstorm Warnings in Delaware, 2025Severe Thunderstorm Warnings in Pennsylvania, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.