Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 142, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 4, 2026, 9:15 PM EDT for Bucks County, Montgomery County, Philadelphia County, Pennsylvania; 6 counties in New Jersey. It was in force for 75 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
- Jul 4, 2026, 9:15 PM EDT (01:15 UTC)
- Expired
- Jul 4, 2026, 10:30 PM EDT
- In force
- 75 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Somerset County, NJ, Bucks County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 58 km from the middle of the area, began a volume at 01:17 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 4, 9:24 PM EDT | TSTM WND DMG | Langhorne, PA | Several reports of trees and wires down around the Langhorne Area. Time estimated from radar. |
| Jul 4, 9:26 PM EDT | TSTM WND DMG | 1 Wsw Village Shires, PA | Tree and wires down on road near Cameron Dr and Starling Rd. |
| Jul 4, 9:27 PM EDT | TSTM WND DMG | 2 Ese Washington Crossi, NJ | Delayed report. Large tree snapped with wires down. Time estimated from radar. |
| Jul 4, 9:30 PM EDT | TSTM WND DMG | 1 N Village Shires, PA | Wires down on road at Newtown-Richboro Rd and St. Leonards Rd. |
| Jul 4, 9:30 PM EDT | TSTM WND DMG | 1 N Village Shires, PA | Report of wires down across the roadway. Time estimated from radar. |
| Jul 4, 9:34 PM EDT | TSTM WND DMG | Newtown, PA | Trees down in Newtown. |
| Jul 4, 9:36 PM EDT | TSTM WND DMG | 2 Wnw Pennington, NJ | Several trees and wires down around Hopewell Township. 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 4, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 1.3 hours before the alert went out and 129 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
- 1105 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1723 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.7
The text
As transmitted.
045
WUUS51 KPHI 050115
SVRPHI
NJC005-019-021-023-025-035-PAC017-091-101-050230-
/O.NEW.KPHI.SV.W.0142.260705T0115Z-260705T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
915 PM EDT Sat Jul 4 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Hunterdon County in northwestern New Jersey...
Mercer County in central New Jersey...
Northwestern Burlington County in southern New Jersey...
Somerset County in northern New Jersey...
Central Monmouth County in central New Jersey...
Middlesex County in northern New Jersey...
East central Montgomery County in southeastern Pennsylvania...
Eastern Bucks County in southeastern Pennsylvania...
Northeastern Philadelphia County in southeastern Pennsylvania...
* Until 1030 PM EDT.
* At 914 PM EDT, a severe thunderstorm was located over New Hope, or
14 miles northwest of Trenton, moving east at 30 mph.
HAZARD...60 mph wind gusts. Strong to damaging winds can occur
ahead of any rain associated with a gust front.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Philadelphia, Trenton, New Brunswick, Perth Amboy, Somerville,
Sandy Hook, Somerset, Edison, Middletown, Old Bridge, Bensalem,
East Brunswick, Bridgewater, South Brunswick, Sayreville, North
Brunswick, Marlboro, Manalapan, Ewing, and Carteret.
People at the New Hope America 250 Celebration, Southampton Days, and
St. Michaels Fair should seek safe shelter immediately!
This includes the following highways...
New Jersey Turnpike between exits 6 and 12.
Pennsylvania Turnpike between mile markers 345 and 359.
Interstate 95 in Pennsylvania between mile markers 27 and 40.
Interstate 78 in New Jersey between mile markers 35 and 43.
Interstate 195 in New Jersey between mile markers 0 and 13.
Interstate 295 in New Jersey between mile markers 53 and 76.
Interstate 287 in New Jersey between mile markers 0 and 20.
Garden State Parkway between mile markers 110 and 133.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to 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 4037 7397 4015 7455 3999 7508 4052 7514
4067 7446 4066 7440 4060 7446 4059 7420
4056 7421 4055 7425 4050 7426 4050 7428
4046 7426 4044 7420 4046 7418 4045 7413
4041 7398 4048 7402 4047 7399
TIME...MOT...LOC 0114Z 255DEG 27KT 4034 7499
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse3 follow-up statements
827
WWUS51 KPHI 050134
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
934 PM EDT Sat Jul 4 2026
PAC091-050143-
/O.CAN.KPHI.SV.W.0142.000000T0000Z-260705T0230Z/
Montgomery PA-
934 PM EDT Sat Jul 4 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MONTGOMERY COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southern, central, northern and northwestern New Jersey...and
southeastern Pennsylvania.
LAT...LON 4015 7455 4001 7502 4002 7502 4054 7506
4067 7446 4066 7440 4060 7446 4059 7421
4056 7421 4055 7425 4050 7428 4046 7426
4044 7420 4046 7418 4045 7413 4041 7403
4044 7399 4048 7402 4047 7399 4037 7397
TIME...MOT...LOC 0133Z 261DEG 32KT 4034 7469
$$
NJC005-019-021-023-025-035-PAC017-101-050230-
/O.CON.KPHI.SV.W.0142.000000T0000Z-260705T0230Z/
Hunterdon NJ-Mercer NJ-Burlington NJ-Somerset NJ-Monmouth NJ-
Middlesex NJ-Bucks PA-Philadelphia PA-
934 PM EDT Sat Jul 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR SOUTHEASTERN HUNTERDON...MERCER...NORTHWESTERN BURLINGTON...
SOMERSET...CENTRAL MONMOUTH...MIDDLESEX...SOUTHEASTERN BUCKS AND
NORTHEASTERN PHILADELPHIA COUNTIES...
At 933 PM EDT, a severe thunderstorm was located over Princeton, or 8
miles northeast of Trenton, moving east at 35 mph.
HAZARD...60 mph wind gusts. Strong to damaging winds may occur ahead
of any rain associated with a gust front.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Trenton, New Brunswick, Perth Amboy, Somerville, Sandy
Hook, Somerset, Edison, Middletown, Old Bridge, Bensalem, East
Brunswick, Bridgewater, South Brunswick, Sayreville, North Brunswick,
Marlboro, Manalapan, Ewing, and Carteret.
People at the New Hope America 250 Celebration, Southampton Days, and
St. Michaels Fair should seek safe shelter immediately!
This includes the following highways...
New Jersey Turnpike between exits 6 and 12.
Pennsylvania Turnpike between mile markers 348 and 359.
Interstate 95 in Pennsylvania between mile markers 31 and 40.
Interstate 78 in New Jersey between mile markers 35 and 43.
Interstate 195 in New Jersey between mile markers 0 and 13.
Interstate 295 in New Jersey between mile markers 53 and 76.
Interstate 287 in New Jersey between mile markers 0 and 20.
Garden State Parkway between mile markers 110 and 133.
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 4015 7455 4001 7502 4002 7502 4054 7506
4067 7446 4066 7440 4060 7446 4059 7421
4056 7421 4055 7425 4050 7428 4046 7426
4044 7420 4046 7418 4045 7413 4041 7403
4044 7399 4048 7402 4047 7399 4037 7397
TIME...MOT...LOC 0133Z 261DEG 32KT 4034 7469
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse877
WWUS51 KPHI 050146
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
946 PM EDT Sat Jul 4 2026
PAC101-050155-
/O.CAN.KPHI.SV.W.0142.000000T0000Z-260705T0230Z/
Philadelphia PA-
946 PM EDT Sat Jul 4 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PHILADELPHIA
COUNTY IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southern, central, northern and northwestern New Jersey...and
southeastern Pennsylvania.
LAT...LON 4015 7455 4006 7485 4056 7494 4067 7446
4066 7440 4060 7446 4059 7421 4056 7421
4055 7425 4050 7428 4046 7426 4044 7420
4046 7418 4045 7413 4041 7403 4044 7399
4048 7402 4047 7399 4037 7397
TIME...MOT...LOC 0145Z 255DEG 27KT 4036 7457
$$
NJC005-019-021-023-025-035-PAC017-050230-
/O.CON.KPHI.SV.W.0142.000000T0000Z-260705T0230Z/
Hunterdon NJ-Mercer NJ-Burlington NJ-Somerset NJ-Monmouth NJ-
Middlesex NJ-Bucks PA-
946 PM EDT Sat Jul 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR SOUTHEASTERN HUNTERDON...MERCER...NORTH CENTRAL BURLINGTON...
SOMERSET...CENTRAL MONMOUTH...MIDDLESEX AND SOUTHEASTERN BUCKS
COUNTIES...
At 945 PM EDT, a severe thunderstorm was located over Kingston, or 10
miles southwest of New Brunswick, moving east at 30 mph.
HAZARD...60 mph wind gusts. Strong to damaging winds can occur ahead
of any rain associated with a gust front.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Trenton, New Brunswick, Perth Amboy, Somerville, Sandy Hook,
Somerset, Edison, Middletown, Old Bridge, East Brunswick,
Bridgewater, South Brunswick, Sayreville, North Brunswick, Marlboro,
Manalapan, Ewing, Carteret, Tinton Falls, and Holmdel.
People at the St. Michaels Fair should seek safe shelter immediately!
This includes the following highways...
New Jersey Turnpike between exits 6 and 12.
Pennsylvania Turnpike between mile markers 358 and 359.
Interstate 78 in New Jersey between mile markers 36 and 43.
Interstate 195 in New Jersey between mile markers 0 and 13.
Interstate 295 in New Jersey between mile markers 53 and 76.
Interstate 287 in New Jersey between mile markers 0 and 20.
Garden State Parkway between mile markers 110 and 133.
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 4015 7455 4006 7485 4056 7494 4067 7446
4066 7440 4060 7446 4059 7421 4056 7421
4055 7425 4050 7428 4046 7426 4044 7420
4046 7418 4045 7413 4041 7403 4044 7399
4048 7402 4047 7399 4037 7397
TIME...MOT...LOC 0145Z 255DEG 27KT 4036 7457
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse032
WWUS51 KPHI 050221
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1021 PM EDT Sat Jul 4 2026
NJC005-019-021-023-025-035-PAC017-050231-
/O.EXP.KPHI.SV.W.0142.000000T0000Z-260705T0230Z/
Hunterdon NJ-Mercer NJ-Burlington NJ-Somerset NJ-Monmouth NJ-
Middlesex NJ-Bucks PA-
1021 PM EDT Sat Jul 4 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HUNTERDON...
MERCER...NORTH CENTRAL BURLINGTON...SOMERSET...CENTRAL MONMOUTH...
MIDDLESEX AND SOUTHEASTERN BUCKS COUNTIES WILL EXPIRE AT 1030 PM
EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southern, central, northern and northwestern New Jersey...and
southeastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4015 7455 4006 7485 4056 7494 4067 7446
4066 7440 4060 7446 4059 7421 4056 7421
4055 7425 4050 7428 4046 7426 4044 7420
4046 7418 4045 7413 4041 7403 4044 7399
4048 7402 4047 7399 4037 7397
TIME...MOT...LOC 0221Z 255DEG 27KT 4042 7426
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 4, 8:25 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Montgomery, Philadelphia | 65 min |
| Jul 4, 8:28 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Northampton | 62 min |
| Jul 4, 8:38 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 52 min |
| Jul 4, 8:59 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 46 min |
| Jul 4, 10:52 PM EDT | Heat Advisory | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 21 hr |
| Jul 5, 2:33 AM EDT | Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 41 hr |
| Jul 5, 7:30 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 2 hr |
| Jul 5, 7:33 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 28 min |
| Jul 4, 8:20 PM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 4, 8:48 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 57 min |
| Jul 4, 9:13 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 62 min |
| Jul 4, 9:24 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jul 4, 9:25 PM EDT | Special Marine Warning | PHI | 65 min | |
| Jul 4, 9:38 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 4, 9:41 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland, Ocean | 49 min |
| Jul 4, 9:50 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Monmouth, Ocean | 55 min |
| Jul 4, 10:04 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jul 4, 10:52 PM EDT | Special Marine Warning | PHI | 83 min | |
| Jul 4, 11:08 PM EDT | Special Marine Warning | PHI | 47 min | |
| Jul 5, 7:06 PM EDT | Special Marine Warning | PHI | 47 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2026Severe Thunderstorm Warnings in Pennsylvania, 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.