Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 200, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 30, 2025, 4:39 PM EDT for Sussex County, Warren County, New Jersey. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 30, 2025, 4:39 PM EDT (20:39 UTC)
- Expired
- Jul 30, 2025, 5:14 PM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Sussex County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 123 km from the middle of the area, began a volume at 20:41 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.7 hours before the alert went out and 158 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
- 238 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 1637 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
469
WUUS51 KPHI 302039
SVRPHI
NJC037-041-302130-
/O.NEW.KPHI.SV.W.0200.250730T2039Z-250730T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
439 PM EDT Wed Jul 30 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern Sussex County in northwestern New Jersey...
Northeastern Warren County in northwestern New Jersey...
* Until 530 PM EDT.
* At 439 PM EDT, a severe thunderstorm was located near Newton,
moving east at 10 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...
Newton, Blairstown, Franklin, Ogdensburg, Andover, Lake Mohawk, and
Greendell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4102 7458 4101 7460 4090 7506 4105 7495
4117 7462
TIME...MOT...LOC 2039Z 264DEG 7KT 4103 7482
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM2 follow-up statements
092
WWUS51 KPHI 302058
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
458 PM EDT Wed Jul 30 2025
NJC037-041-302130-
/O.CON.KPHI.SV.W.0200.000000T0000Z-250730T2130Z/
Sussex NJ-Warren NJ-
458 PM EDT Wed Jul 30 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTHWESTERN SUSSEX AND NORTHEASTERN WARREN COUNTIES...
At 458 PM EDT, a severe thunderstorm was located over Newton, moving
east at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Newton, Blairstown, Franklin, Ogdensburg, Andover, Lake Mohawk, and
Greendell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4102 7458 4101 7460 4090 7506 4105 7495
4113 7461
TIME...MOT...LOC 2058Z 264DEG 7KT 4103 7477
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM022
WWUS51 KPHI 302114
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
514 PM EDT Wed Jul 30 2025
NJC037-041-302124-
/O.CAN.KPHI.SV.W.0200.000000T0000Z-250730T2130Z/
Sussex NJ-Warren NJ-
514 PM EDT Wed Jul 30 2025
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SUSSEX AND
NORTHEASTERN WARREN COUNTIES IS CANCELLED...
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 has been cancelled.
LAT...LON 4102 7458 4101 7460 4090 7506 4105 7495
4113 7461
TIME...MOT...LOC 2111Z 264DEG 7KT 4103 7473
$$
RCMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 2:10 PM EDT | Flood Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 31 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.