Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 151, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 5, 2026, 8:37 PM EDT for Hunterdon County, Morris County, Somerset County, New Jersey. It was in force for 38 min. 1 report 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 5, 2026, 8:37 PM EDT (00:37 UTC)
- Expired
- Jul 5, 2026, 9:15 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 91 km from the middle of the area, began a volume at 00:38 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 5, 8:56 PM EDT | TSTM WND DMG | Tewksbury Twp, NJ | Multiple reports of power lines and trees down across the Tewksbury area. Time estimated from radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.6 hours before the alert went out and 144 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
- 2 J/kg
- Mixed-layer CIN
- -289 J/kg
- Mixed-layer LCL
- 1021 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
018
WUUS51 KPHI 060037
SVRPHI
NJC019-027-035-060115-
/O.NEW.KPHI.SV.W.0151.260706T0037Z-260706T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
837 PM EDT Sun Jul 5 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Hunterdon County in northwestern New Jersey...
Southern Morris County in northern New Jersey...
Northern Somerset County in northern New Jersey...
* Until 915 PM EDT.
* At 837 PM EDT, a severe thunderstorm was located over Lebanon, or
12 miles west of Somerville, moving northeast 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...
Morristown, Somerville, Bridgewater, Madison, Florham Park,
Manville, Chatham, Morris Plains, Mount Arlington, Mendham, High
Bridge, Stanhope, Netcong, Clinton, Peapack And Gladstone, Glen
Gardner, Chester, Lebanon, Califon, and Far Hills.
This includes the following highways...
Interstate 78 in New Jersey between mile markers 12 and 39.
Interstate 80 in New Jersey between mile markers 24 and 29.
Interstate 287 in New Jersey between mile markers 15 and 38.
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 4073 7437 4068 7445 4066 7446 4047 7471
4062 7502 4092 7474 4091 7472 4090 7471
4091 7469 4078 7437 4076 7438 4075 7436
TIME...MOT...LOC 0037Z 211DEG 17KT 4063 7483
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse3 follow-up statements
711
WWUS51 KPHI 060045
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
845 PM EDT Sun Jul 5 2026
NJC019-027-035-060115-
/O.CON.KPHI.SV.W.0151.000000T0000Z-260706T0115Z/
Hunterdon NJ-Morris NJ-Somerset NJ-
845 PM EDT Sun Jul 5 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR NORTHEASTERN HUNTERDON...SOUTHWESTERN MORRIS AND NORTHWESTERN
SOMERSET COUNTIES...
At 845 PM EDT, a severe thunderstorm was located over Lebanon, or 14
miles northwest of Somerville, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Morristown, Morris Plains, Mount Arlington, Mendham, High Bridge,
Stanhope, Netcong, Clinton, Peapack And Gladstone, Glen Gardner,
Chester, Lebanon, Califon, Far Hills, Succasunna, Succasunna-Kenvil,
Long Valley, Budd Lake, Annandale, and White House Station.
This includes the following highways...
Interstate 78 in New Jersey between mile markers 12 and 31.
Interstate 80 in New Jersey between mile markers 24 and 29.
Interstate 287 in New Jersey between mile markers 21 and 37.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4052 7479 4062 7502 4092 7474 4091 7472
4090 7471 4091 7469 4080 7442
TIME...MOT...LOC 0045Z 203DEG 16KT 4067 7485
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse170
WWUS51 KPHI 060058
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
858 PM EDT Sun Jul 5 2026
NJC019-027-035-060115-
/O.CON.KPHI.SV.W.0151.000000T0000Z-260706T0115Z/
Hunterdon NJ-Morris NJ-Somerset NJ-
858 PM EDT Sun Jul 5 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR NORTHEASTERN HUNTERDON...SOUTHWESTERN MORRIS AND NORTHWESTERN
SOMERSET COUNTIES...
At 858 PM EDT, a severe thunderstorm was located over Califon, or 14
miles northwest of Somerville, moving northeast 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...
Morristown, Morris Plains, Mount Arlington, Mendham, Stanhope,
Netcong, Peapack And Gladstone, Chester, Califon, Far Hills,
Succasunna, Succasunna-Kenvil, Long Valley, Budd Lake, Basking Ridge,
and Bernardsville.
This includes the following highways...
Interstate 78 in New Jersey between mile markers 24 and 31.
Interstate 80 in New Jersey between mile markers 24 and 29.
Interstate 287 in New Jersey between mile markers 21 and 37.
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 4060 7469 4072 7493 4092 7474 4091 7472
4090 7471 4091 7469 4080 7442
TIME...MOT...LOC 0058Z 211DEG 17KT 4072 7480
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse543
WWUS51 KPHI 060114
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
914 PM EDT Sun Jul 5 2026
NJC019-027-035-060124-
/O.EXP.KPHI.SV.W.0151.000000T0000Z-260706T0115Z/
Hunterdon NJ-Morris NJ-Somerset NJ-
914 PM EDT Sun Jul 5 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HUNTERDON...
SOUTHWESTERN MORRIS AND NORTHWESTERN SOMERSET COUNTIES WILL EXPIRE AT
915 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4060 7469 4072 7493 4092 7474 4091 7472
4090 7471 4091 7469 4080 7442
TIME...MOT...LOC 0114Z 211DEG 17KT 4077 7476
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 9:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex | 46 min |
| Jul 5, 9:58 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jul 5, 10:05 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 40 min |
| Jul 5, 10:21 PM EDT | Special Marine Warning | PHI | 84 min | |
| Jul 5, 10:37 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 38 min |
| Jul 5, 11:00 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Jul 5, 11:30 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Cumberland, Gloucester, Salem | 45 min |
| Jul 6, 12:01 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 29 min |
| Jul 6, 9:16 AM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Somerset | 2 hr |
| Jul 6, 9:27 AM EDT | Flash Flood Warning | PHI | Cumberland, Gloucester, Salem | 3 hr |
| Jul 6, 10:15 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Jul 6, 10:27 AM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Jul 6, 10:38 AM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 4 hr |
| Jul 6, 11:01 AM EDT | Special Marine Warning | PHI | 78 min | |
| Jul 6, 11:02 AM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth | 4 hr |
| Jul 6, 11:13 AM EDT | Flash Flood Warning | PHI | Burlington | 3 hr |
| Jul 6, 11:44 AM EDT | Flash Flood Warning | PHI | Monmouth, Ocean | 4 hr |
| Jul 6, 1:46 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jul 6, 2:15 PM EDT | Areal Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Jul 6, 2:40 PM EDT | Areal Flood Warning | PHI | Burlington | 4 hr |
| Jul 6, 3:07 PM EDT | Areal Flood Warning | PHI | Monmouth, Ocean | 4 hr |
| Jul 6, 3:39 PM EDT | Special Marine Warning | PHI | 48 min | |
| Jul 6, 3:50 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 6, 4:36 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jul 6, 5:23 PM EDT | Special Marine Warning | PHI | 82 min |
Nearby
Severe 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.