Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 89, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 25, 2025, 7:54 PM EDT for Delaware County, Philadelphia County, Pennsylvania; Camden County, Gloucester County, New Jersey. It was in force for 26 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
- Jun 25, 2025, 7:54 PM EDT (23:54 UTC)
- Expired
- Jun 25, 2025, 8:20 PM EDT
- In force
- 26 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, Delaware County, PA, Philadelphia County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.9 hours before the alert went out and 213 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
- 515 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 1717 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- -27 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
192
WUUS51 KPHI 252354
SVRPHI
NJC007-015-PAC045-101-260045-
/O.NEW.KPHI.SV.W.0089.250625T2354Z-250626T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
754 PM EDT Wed Jun 25 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Camden County in southern New Jersey...
North central Gloucester County in southern New Jersey...
Southwestern Philadelphia County in southeastern Pennsylvania...
Southeastern Delaware County in southeastern Pennsylvania...
* Until 845 PM EDT.
* At 754 PM EDT, a severe thunderstorm was located over Darby
Township, or 7 miles west of Gloucester City, moving southeast at
15 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...
Philadelphia, Camden, Gloucester City, Deptford, West Deptford,
Bellmawr, Yeadon, Woodbury, Folcroft, Swarthmore, Paulsboro,
Magnolia, Westville, Woodbury Heights, National Park, East
Lansdowne, Brooklawn, Audubon Park, Darby Township, and Golden
Triangle.
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.
&&
LAT...LON 3991 7538 3998 7528 3992 7499 3972 7517
TIME...MOT...LOC 2354Z 299DEG 13KT 3991 7526
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann3 follow-up statements
212
WWUS51 KPHI 260005
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
805 PM EDT Wed Jun 25 2025
NJC007-015-PAC045-101-260045-
/O.CON.KPHI.SV.W.0089.000000T0000Z-250626T0045Z/
Camden NJ-Gloucester NJ-Philadelphia PA-Delaware PA-
805 PM EDT Wed Jun 25 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER...SOUTHWESTERN
PHILADELPHIA AND EAST CENTRAL DELAWARE COUNTIES...
At 804 PM EDT, a severe thunderstorm was located over South
Philadelphia, or near Gloucester City, moving east at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Philadelphia, Camden, Gloucester City, Deptford, West Deptford,
Bellmawr, Yeadon, Woodbury, Folcroft, Paulsboro, Magnolia, Westville,
Woodbury Heights, National Park, East Lansdowne, Brooklawn, Audubon
Park, Darby Township, Golden Triangle, and Erlton-Ellisburg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 3990 7532 3997 7523 3992 7499 3976 7513
TIME...MOT...LOC 0004Z 286DEG 17KT 3990 7519
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann875
WWUS51 KPHI 260013
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
813 PM EDT Wed Jun 25 2025
PAC045-260022-
/O.CAN.KPHI.SV.W.0089.000000T0000Z-250626T0045Z/
Delaware PA-
813 PM EDT Wed Jun 25 2025
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DELAWARE COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3991 7524 3996 7520 3992 7499 3980 7509
TIME...MOT...LOC 0012Z 293DEG 13KT 3991 7514
$$
NJC007-015-PAC101-260045-
/O.CON.KPHI.SV.W.0089.000000T0000Z-250626T0045Z/
Camden NJ-Gloucester NJ-Philadelphia PA-
813 PM EDT Wed Jun 25 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM EDT
FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER AND SOUTHWESTERN
PHILADELPHIA COUNTIES...
At 812 PM EDT, a severe thunderstorm was located over Gloucester
City, moving southeast at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Camden, Gloucester City, Bellmawr, Woodbury, Magnolia,
Westville, National Park, Brooklawn, Audubon Park, South
Philadelphia, Golden Triangle, Erlton-Ellisburg, Barclay-Kingston,
Ashland, Pennsauken, Collingswood, Haddonfield, Audubon, and
Runnemede.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3991 7524 3996 7520 3992 7499 3980 7509
TIME...MOT...LOC 0012Z 293DEG 13KT 3991 7514
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann543 WWUS51 KPHI 260020 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 820 PM EDT Wed Jun 25 2025 NJC007-015-PAC101-260030- /O.CAN.KPHI.SV.W.0089.000000T0000Z-250626T0045Z/ Camden NJ-Gloucester NJ-Philadelphia PA- 820 PM EDT Wed Jun 25 2025 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER AND SOUTHWESTERN PHILADELPHIA 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. 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 3991 7524 3996 7520 3992 7499 3980 7509 TIME...MOT...LOC 0019Z 299DEG 13KT 3989 7510 $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 5:39 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 66 min |
| Jun 25, 6:41 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 32 min |
| Jun 25, 5:55 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 52 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2025Severe 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.