Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 70, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2025, 3:14 PM EDT for Hunterdon County, Morris County, Somerset County, New Jersey. It was in force for 46 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
- Jun 19, 2025, 3:14 PM EDT (19:14 UTC)
- Expired
- Jun 19, 2025, 4:00 PM EDT
- In force
- 46 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 88 km from the middle of the area, began a volume at 19:18 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 |
|---|---|---|---|
| Jun 19, 3:27 PM EDT | TSTM WND DMG | Tewksbury Twp, NJ | Trees and wires down. 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 |
|---|---|---|---|
| Jun 19, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.2 hours before the alert went out and 166 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
- 14 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 907 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
783
WUUS51 KPHI 191914
SVRPHI
NJC019-027-035-192000-
/O.NEW.KPHI.SV.W.0070.250619T1914Z-250619T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
314 PM EDT Thu Jun 19 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern Morris County in northern New Jersey...
Northeastern Hunterdon County in northwestern New Jersey...
Northwestern Somerset County in northern New Jersey...
* Until 400 PM EDT.
* At 313 PM EDT, a severe thunderstorm was located over High Bridge,
or 16 miles northwest of Somerville, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Bridgewater, Mendham, High Bridge, Clinton, Peapack And Gladstone,
Glen Gardner, Chester, Hampton, Lebanon, Califon, Far Hills, Long
Valley, Annandale, Millington, Martinsville, White House Station,
Basking Ridge, and Bernardsville.
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.
&&
LAT...LON 4056 7498 4072 7497 4074 7495 4085 7451
4060 7450
TIME...MOT...LOC 1913Z 254DEG 27KT 4067 7490
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS2 follow-up statements
723
WWUS51 KPHI 191933
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
333 PM EDT Thu Jun 19 2025
NJC019-027-035-192000-
/O.CON.KPHI.SV.W.0070.000000T0000Z-250619T2000Z/
Morris NJ-Hunterdon NJ-Somerset NJ-
333 PM EDT Thu Jun 19 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR SOUTHWESTERN MORRIS...NORTHEASTERN HUNTERDON AND NORTHWESTERN
SOMERSET COUNTIES...
At 332 PM EDT, a severe thunderstorm was located near Peapack And
Gladstone, or 9 miles northwest of Somerville, moving east at 30 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Bridgewater, Mendham, Peapack And Gladstone, Chester, Far Hills,
Millington, Martinsville, White House Station, Basking Ridge, and
Bernardsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
&&
LAT...LON 4058 7478 4074 7482 4084 7451 4060 7450
4059 7462
TIME...MOT...LOC 1932Z 257DEG 27KT 4069 7472
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS827
WWUS51 KPHI 191955
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
355 PM EDT Thu Jun 19 2025
NJC019-027-035-192005-
/O.EXP.KPHI.SV.W.0070.000000T0000Z-250619T2000Z/
Morris NJ-Hunterdon NJ-Somerset NJ-
355 PM EDT Thu Jun 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MORRIS...
NORTHEASTERN HUNTERDON AND NORTHWESTERN SOMERSET COUNTIES WILL EXPIRE
AT 400 PM EDT...
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 will be allowed to expire. However, small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northern and northwestern New Jersey.
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 4058 7478 4074 7482 4084 7451 4060 7450
4059 7462
TIME...MOT...LOC 1955Z 254DEG 27KT 4073 7452
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 2:27 PM EDT | Small Craft Advisory | PHI | 16 hr | |
| Jun 19, 2:44 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset | 31 min |
| Jun 19, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 29 min |
| Jun 19, 4:48 PM EDT | Special Marine Warning | PHI | 42 min | |
| Jun 19, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 47 min |
| Jun 19, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 52 min |
| Jun 19, 5:27 PM EDT | Special Marine Warning | PHI | 63 min | |
| Jun 19, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer | 50 min |
| Jun 19, 5:41 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 49 min |
| Jun 19, 5:55 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 39 min |
| Jun 19, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more | 31 min |
| Jun 19, 6:34 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jun 19, 6:52 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jun 19, 6:55 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 50 min |
| Jun 19, 7:02 PM EDT | Special Marine Warning | PHI | 43 min | |
| Jun 19, 7:06 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jun 19, 7:22 PM EDT | Special Marine Warning | PHI | 53 min |
Nearby
Severe 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.