Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 116, NWS Philadelphia/Mount Holly

July 3, 20265 counties in New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 3, 2026, 7:03 PM EDT for 5 counties in New Jersey; Northampton County, Pennsylvania. It was in force for 42 min. 15 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 3, 2026, 7:03 PM EDT (23:03 UTC)
Expired: Jul 3, 2026, 7:45 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.88 in
Wind: 70.0 mph

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 113 km from the middle of the area, began a volume at 23:03 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 3, 7:07 PM EDT	TSTM WND DMG	2 Ssw Stillwater Twp, NJ	Several trees and wires down around Stillwater. Time estimated from radar.
Jul 3, 7:17 PM EDT	TSTM WND DMG	Green Twp, NJ	Trees and wires down in Green Township. Time estimated from radar.
Jul 3, 7:21 PM EDT	TSTM WND DMG	Byram Twp, NJ	Tree down into a house in Byram Township. Time estimated from radar.
Jul 3, 7:27 PM EDT	TSTM WND DMG	Hackettstown, NJ	Several trees and wires down around Hackettstown. A shed was also destroyed by the high winds. Time estimated from radar.
Jul 3, 7:27 PM EDT	TSTM WND DMG	Hopatcong, NJ	Pictures of large trees down in Hopatcong. Time estimated from radar.
Jul 3, 7:30 PM EDT	TSTM WND DMG	1 Sse Ledgewood, NJ	Several trees and wires down around Roxbury Township. Time estimated from radar.
Jul 3, 7:33 PM EDT	TSTM WND DMG	1 N Randolph, NJ	Trees down blocking Route 10. Time estimated from radar.
Jul 3, 7:33 PM EDT	TSTM WND DMG	Mount Arlington, NJ	Several trees and wires down around Mount Arlington. Time estimated from radar.
Jul 3, 7:34 PM EDT	TSTM WND DMG	Far Hills, NJ	Several large 4 inch diameter tree branches down. Time estimated from radar.
Jul 3, 7:35 PM EDT	TSTM WND DMG	Chatham, NJ	Several trees down around Chatham. Video shows high winds likely from the outflow boundary. Time estimated from radar.
Jul 3, 7:36 PM EDT	TSTM WND DMG	Whitehouse Station, NJ	5 inch diameter tree branch downed. Time estimated from radar.
Jul 3, 7:40 PM EDT	TSTM WND DMG	2 W New Vernon, NJ	Several trees down on Route 287 around Mile Marker 31 blocking the road. Time estimated from radar.
Jul 3, 7:40 PM EDT	TSTM WND DMG	Parsippany, NJ	Picture of a large amount of trees down, completely blocking a roadway. Time estimated from radar.
Jul 3, 7:42 PM EDT	TSTM WND DMG	Morristown, NJ	Several trees and wires down around Morristown. Time estimated from radar.
Jul 3, 7:48 PM EDT	TSTM WND DMG	Pittstown, NJ	Pictures sent in of several large trees down around Pittstown. 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 3, 3:25 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.1 hours before the alert went out and 138 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 912 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 1343 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

363 
WUUS51 KPHI 032303
SVRPHI
NJC019-027-035-037-041-PAC095-032345-
/O.NEW.KPHI.SV.W.0116.260703T2303Z-260703T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
703 PM EDT Fri Jul 3 2026

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern Hunterdon County in northwestern New Jersey...
  Morris County in northern New Jersey...
  Sussex County in northwestern New Jersey...
  Warren County in northwestern New Jersey...
  Northwestern Somerset County in northern New Jersey...
  Northeastern Northampton County in eastern Pennsylvania...

* Until 745 PM EDT.

* At 703 PM EDT, severe thunderstorms were located along a line
  extending from Pellettown to Blairstown to near Belfast, moving
  southeast at 60 mph.

  HAZARD...70 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Easton, Morristown, Newton, Bridgewater, Dover, Madison, Hopatcong,
  Florham Park, East Hanover, Lincoln Park, Kinnelon, Hackettstown,
  Chatham, Boonton, Butler, Wharton, Washington, Rockaway,
  Blairstown, and Nazareth.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 4 and 37.
 Interstate 80 in New Jersey between mile markers 2 and 49.
 Interstate 287 in New Jersey between mile markers 18 and 54.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4120 7436 4110 7449 4104 7450 4105 7445
      4102 7443 4100 7430 4097 7428 4092 7429
      4090 7427 4091 7434 4086 7432 4079 7437
      4075 7436 4049 7478 4080 7543 4101 7503
      4130 7461
TIME...MOT...LOC 2303Z 301DEG 53KT 4118 7469 4100 7499 4080 7536 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

MPS

2 follow-up statements

653 
WWUS51 KPHI 032320
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
720 PM EDT Fri Jul 3 2026

NJC019-027-035-037-041-PAC095-032345-
/O.CON.KPHI.SV.W.0116.000000T0000Z-260703T2345Z/
Hunterdon NJ-Morris NJ-Sussex NJ-Warren NJ-Somerset NJ-
Northampton PA-
720 PM EDT Fri Jul 3 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHERN HUNTERDON...MORRIS...SOUTHEASTERN SUSSEX...WARREN...
NORTHWESTERN SOMERSET AND EAST CENTRAL NORTHAMPTON COUNTIES...

At 719 PM EDT, severe thunderstorms were located along a line
extending from near Hamburg to Greendell to Forks, moving southeast
at 55 mph.

HAZARD...70 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Easton, Morristown, Bridgewater, Dover, Madison, Hopatcong, Florham
Park, East Hanover, Lincoln Park, Kinnelon, Hackettstown, Chatham,
Boonton, Butler, Wharton, Washington, Rockaway, Morris Plains, Mount
Arlington, and Franklin.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 4 and 37.
 Interstate 80 in New Jersey between mile markers 14 and 49.
 Interstate 287 in New Jersey between mile markers 18 and 54.

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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4072 7525 4098 7485 4118 7445 4116 7441
      4110 7449 4104 7450 4105 7445 4102 7443
      4100 7430 4097 7428 4092 7429 4090 7427
      4091 7434 4086 7432 4079 7437 4075 7436
      4049 7478
TIME...MOT...LOC 2319Z 303DEG 47KT 4114 7451 4097 7483 4072 7522 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

MPS

284 
WWUS51 KPHI 032340
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
740 PM EDT Fri Jul 3 2026

NJC019-027-035-037-041-PAC095-032349-
/O.EXP.KPHI.SV.W.0116.000000T0000Z-260703T2345Z/
Hunterdon NJ-Morris NJ-Sussex NJ-Warren NJ-Somerset NJ-
Northampton PA-
740 PM EDT Fri Jul 3 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN HUNTERDON...MORRIS...
SOUTHEASTERN SUSSEX...WARREN...NORTHWESTERN SOMERSET AND EAST CENTRAL
NORTHAMPTON COUNTIES WILL EXPIRE AT 745 PM EDT...

The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern and northwestern New Jersey...and eastern Pennsylvania.

Remember, a Severe Thunderstorm Warning still remains in effect for 
portions of Somerset and Morris counties. 

LAT...LON 4072 7525 4098 7485 4118 7445 4116 7441
      4110 7449 4104 7450 4105 7445 4102 7443
      4100 7430 4097 7428 4092 7429 4090 7427
      4091 7434 4086 7432 4079 7437 4075 7436
      4049 7478
TIME...MOT...LOC 2339Z 301DEG 53KT 4101 7422 4084 7454 4059 7493 

$$

MPS

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 3, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	40 min
Jul 3, 6:09 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	51 min
Jul 3, 6:35 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	40 min
Jul 3, 6:48 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	42 min
Jul 3, 7:05 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	55 min
Jul 3, 7:26 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	49 min
Jul 3, 7:37 PM EDT	Severe Thunderstorm Warning Destructive damage threat	PHI	Morris, Somerset	23 min
Jul 3, 7:45 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Hunterdon, Mercer, Somerset	45 min
Jul 3, 7:50 PM EDT	Special Marine Warning	PHI		85 min
Jul 3, 6:07 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Carbon, Monroe	38 min
Jul 3, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Northampton	63 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2026 Severe Thunderstorm Warnings in Pennsylvania, 2026 Every 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.