Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 169, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 11, 2026, 2:44 PM EDT for Delaware County, Montgomery County, Philadelphia County, Pennsylvania; Camden County, Gloucester County, New Jersey. It was in force for 46 min. 16 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 11, 2026, 2:44 PM EDT (18:44 UTC)
- Expired
- Jul 11, 2026, 3:30 PM EDT
- In force
- 46 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, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 72 km from the middle of the area, began a volume at 18:48 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 11, 2:45 PM EDT | TSTM WND DMG | 1 Wsw Bala Cynwyd, PA | News broadcast and report of widespread tree damage in Lower Merion Township. Numerous trees uprooted and large branches down blocking roadways. Power outages in the area. Time estimated from radar. |
| Jul 11, 2:45 PM EDT | TSTM WND DMG | Wynnewood, PA | Video via social media showing a large tree falling during a microburst. Time included in report. |
| Jul 11, 2:45 PM EDT | TSTM WND GST 60 | 1 Ssw Haverford, PA | Trained spotter estimates wind gusts up to 60 mph in Ardmore, Haverford Township. Flooding on Haverford Road. |
| Jul 11, 2:46 PM EDT | TSTM WND DMG | 1 Ene Morris Park, PA | Photo via social media of a large tree down at 63rd and Malvern. Tree is completely blocking 63rd Street. Power is out in the area. Time estimated from radar. |
| Jul 11, 2:47 PM EDT | TSTM WND DMG | 1 S Wynnefield, PA | Photo via social media of a partial building collapse on the 5800 block of Lansdowne Avenue in West Philadelphia near 58th Street. Time estimated from radar. |
| Jul 11, 2:52 PM EDT | TSTM WND DMG | 1 E Millbourne, PA | Roof blown off of a building at 55th and Vine. Occupants have been evacuated. No injuries reported. Time estimated from radar. |
| Jul 11, 2:52 PM EDT | TSTM WND DMG | 1 Ssw Belmont, PA | Photos provided of several large trees uprooted in the Spruce Hill neighborhood of Philadelphia. Trees are blocking roads and some have fallen onto and crushed vehicles. Time estimated from radar. |
| Jul 11, 2:52 PM EDT | TSTM WND DMG | 1 Sw Belmont, PA | Live new footage showing widespread tree damage near Osage and 51st in West Philadelphia. Time estimated from radar. |
| Jul 11, 2:53 PM EDT | TSTM WND DMG | 1 Ne Yeadon, PA | Live news footage showing a large tree down blocking the road at 56th and Baltimore in West Philadelphia. Time estimated from radar. |
| Jul 11, 2:53 PM EDT | TSTM WND DMG | Belmont, PA | Report of a tree fallen onto a car in West Philadelphia with entrapment. Exact location not given. Location of LSR and time estimated from radar. |
| Jul 11, 2:54 PM EDT | TSTM WND DMG | Point Breeze, PA | Live news broadcast at 24th and Washington showing a roof blown off of a building, as well as a collapsed brick wall that fell onto and crushed a vehicle. Time estimated from radar. |
| Jul 11, 2:55 PM EDT | TSTM WND DMG | 1 S Penn Wynne, PA | At least one large tree and several large tree limbs down across the Norristown High Speed SEPTA line just south of the Township Line Road station. Photo provided in report. Time estimated from radar. |
| Jul 11, 2:56 PM EDT | TSTM WND DMG | Drexel Hill, PA | Several trees down and power outages reported near Drexel Hill in Upper Darby Township. Time estimated from radar. |
| Jul 11, 2:59 PM EDT | TSTM WND DMG | 1 Sse Point Breeze, PA | Report of 4 trees down on the 2500 block of South Colorado Street in South Philly. Time estimated from radar. |
| Jul 11, 2:59 PM EDT | TSTM WND DMG | Sports Complex - Philad, PA | Report of a large tree down at Broad and Pattison. Time estimated from radar. |
| Jul 11, 3:04 PM EDT | TSTM WND GST 56 | Philadelphia Internatio, PA | ASOS station KPHL Philadelphia International Airport. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.7 hours before the alert went out and 217 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
- 75 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
009
WUUS51 KPHI 111844
SVRPHI
NJC007-015-PAC045-091-101-111930-
/O.NEW.KPHI.SV.W.0169.260711T1844Z-260711T1930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
244 PM EDT Sat Jul 11 2026
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...
South central Montgomery County in southeastern Pennsylvania...
Philadelphia County in southeastern Pennsylvania...
Eastern Delaware County in southeastern Pennsylvania...
* Until 330 PM EDT.
* At 243 PM EDT, a severe thunderstorm was located over Narberth, or
near Philadelphia, 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, Bellmawr, Yeadon,
Conshohocken, Folcroft, Paulsboro, Westville, Narberth, National
Park, East Lansdowne, Brooklawn, Audubon Park, Darby Township,
Morris Park, Bryn Mawr, Cherry Hill Mall, Trout Lake, and Golden
Triangle.
People at the Lemon Hill and Ben Franklin Bridge events should seek
safe shelter immediately!
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 9 and 26.
Interstate 76 in Pennsylvania between mile markers 332 and 351.
Interstate 76 in New Jersey between mile markers 1 and 3.
Interstate 295 in New Jersey between mile markers 23 and 24.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
Interstate 476 in Pennsylvania between mile markers 6 and 15.
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 4004 7539 4010 7523 3992 7498 3981 7529
TIME...MOT...LOC 1843Z 329DEG 12KT 4001 7526
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann4 follow-up statements
036
WWUS51 KPHI 111856
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
256 PM EDT Sat Jul 11 2026
NJC007-015-PAC045-091-101-111930-
/O.CON.KPHI.SV.W.0169.000000T0000Z-260711T1930Z/
Camden NJ-Gloucester NJ-Montgomery PA-Philadelphia PA-Delaware PA-
256 PM EDT Sat Jul 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER...SOUTHEASTERN
MONTGOMERY...SOUTHWESTERN PHILADELPHIA AND SOUTHEASTERN DELAWARE
COUNTIES...
At 256 PM EDT, a severe thunderstorm was located over East Lansdowne,
or near Philadelphia, 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, Bellmawr, Yeadon, Folcroft,
Paulsboro, Westville, Narberth, National Park, East Lansdowne,
Brooklawn, Audubon Park, Darby Township, Morris Park, Golden
Triangle, Kensington, Erlton-Ellisburg, Roxborough, and Gibbstown.
People at the Lemon Hill and Ben Franklin Bridge events should seek
safe shelter immediately!
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 10 and 25.
Interstate 76 in Pennsylvania between mile markers 337 and 351.
Interstate 76 in New Jersey between mile markers 1 and 3.
Interstate 295 in New Jersey between mile markers 23 and 24.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
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 4002 7531 4005 7522 3992 7498 3981 7529
TIME...MOT...LOC 1856Z 328DEG 12KT 3996 7522
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann091
WWUS51 KPHI 111904
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
304 PM EDT Sat Jul 11 2026
PAC091-111914-
/O.CAN.KPHI.SV.W.0169.000000T0000Z-260711T1930Z/
Montgomery PA-
304 PM EDT Sat Jul 11 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONTGOMERY 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 3997 7528 4001 7520 3991 7500 3981 7529
TIME...MOT...LOC 1904Z 323DEG 18KT 3992 7518
$$
NJC007-015-PAC045-101-111930-
/O.CON.KPHI.SV.W.0169.000000T0000Z-260711T1930Z/
Camden NJ-Gloucester NJ-Philadelphia PA-Delaware PA-
304 PM EDT Sat Jul 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER...SOUTHWESTERN
PHILADELPHIA AND EAST CENTRAL DELAWARE COUNTIES...
At 304 PM EDT, a severe thunderstorm was located over South
Philadelphia, or near Camden, 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...
Philadelphia, Camden, Gloucester City, Bellmawr, Yeadon, Folcroft,
Paulsboro, Westville, National Park, East Lansdowne, Brooklawn,
Audubon Park, Darby Township, Morris Park, Center City, South
Philadelphia, Golden Triangle, Ben Franklin Bridge, Erlton-Ellisburg,
and Roxborough.
People at the Lemon Hill and Ben Franklin Bridge events should seek
safe shelter immediately!
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 10 and 23.
Interstate 76 in Pennsylvania between mile markers 340 and 351.
Interstate 76 in New Jersey between mile markers 1 and 3.
Interstate 295 in New Jersey between mile markers 23 and 24.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
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 3997 7528 4001 7520 3991 7500 3981 7529
TIME...MOT...LOC 1904Z 323DEG 18KT 3992 7518
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann676
WWUS51 KPHI 111916
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
316 PM EDT Sat Jul 11 2026
NJC007-015-PAC045-101-111930-
/O.CON.KPHI.SV.W.0169.000000T0000Z-260711T1930Z/
Camden NJ-Gloucester NJ-Philadelphia PA-Delaware PA-
316 PM EDT Sat Jul 11 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER...SOUTHWESTERN
PHILADELPHIA AND EAST CENTRAL DELAWARE COUNTIES...
At 315 PM EDT, a severe thunderstorm was located over Westville, or
over 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...
Philadelphia, Camden, Gloucester City, Bellmawr, Folcroft, Paulsboro,
Westville, National Park, Brooklawn, Audubon Park, South
Philadelphia, Golden Triangle, Ben Franklin Bridge, Erlton-Ellisburg,
Philadelphia International Airport, Gibbstown, Tinicum Township,
Darby Township, Barclay-Kingston, and Pennsauken.
People at the Lemon Hill and Ben Franklin Bridge events should
continue seeking safe shelter until the storm passes.
This includes the following highways...
Interstate 95 in Pennsylvania between mile markers 10 and 22.
Interstate 76 in Pennsylvania between mile markers 346 and 351.
Interstate 76 in New Jersey between mile markers 1 and 3.
Interstate 295 in New Jersey between mile markers 23 and 24.
Interstate 676 in New Jersey between mile markers 0 and 4.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
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 3990 7528 3997 7512 3991 7500 3981 7529
TIME...MOT...LOC 1915Z 324DEG 16KT 3987 7513
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann503 WWUS51 KPHI 111927 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 327 PM EDT Sat Jul 11 2026 NJC007-015-PAC045-101-111936- /O.EXP.KPHI.SV.W.0169.000000T0000Z-260711T1930Z/ Camden NJ-Gloucester NJ-Philadelphia PA-Delaware PA- 327 PM EDT Sat Jul 11 2026 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER...SOUTHWESTERN PHILADELPHIA AND EAST CENTRAL DELAWARE COUNTIES WILL EXPIRE AT 330 PM EDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service Mount Holly NJ. Remember, a Severe Thunderstorm Warning still remains in effect for portions of central Camden and Gloucester Counties until 4 PM EDT. LAT...LON 3990 7528 3997 7512 3991 7500 3981 7529 TIME...MOT...LOC 1926Z 329DEG 12KT 3984 7511 $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 2:46 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 11, 4:02 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 43 min |
| Jul 11, 4:16 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean | 19 hr |
| Jul 11, 3:06 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 4 hr |
| Jul 11, 3:09 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 51 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2026Severe 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.