Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 217, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 13, 2025, 6:46 PM EDT for Monmouth County, New Jersey. It was in force for 44 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
- Aug 13, 2025, 6:46 PM EDT (22:46 UTC)
- Expired
- Aug 13, 2025, 7:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 60 km from the middle of the area, began a volume at 22:45 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, 10.8 hours before the alert went out and 111 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
- 1273 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
435
WUUS51 KPHI 132246
SVRPHI
NJC025-132330-
/O.NEW.KPHI.SV.W.0217.250813T2246Z-250813T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
646 PM EDT Wed Aug 13 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Monmouth County in central New Jersey...
* Until 730 PM EDT.
* At 646 PM EDT, a severe thunderstorm was located over Middletown,
or near Sandy Hook, moving east at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Long Branch, Sandy Hook, Middletown, Tinton Falls, Holmdel, Red
Bank, Keansburg, Highlands, Elberon, Navesink, Lincroft, Eatontown,
West Long Branch, Rumson, Little Silver, Oceanport, Shrewsbury, and
North Middletown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4026 7397 4034 7423 4046 7418 4045 7413
4041 7399 4041 7398 4043 7399 4044 7399
4048 7402 4047 7399 4043 7397
TIME...MOT...LOC 2246Z 286DEG 17KT 4043 7409
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
pf2 follow-up statements
495
WWUS51 KPHI 132303
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
703 PM EDT Wed Aug 13 2025
NJC025-132330-
/O.CON.KPHI.SV.W.0217.000000T0000Z-250813T2330Z/
Monmouth NJ-
703 PM EDT Wed Aug 13 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHEASTERN MONMOUTH COUNTY...
At 703 PM EDT, a severe thunderstorm was located over Highlands, or
over Sandy Hook, moving east at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Long Branch, Sandy Hook, Middletown, Tinton Falls, Red Bank,
Highlands, Elberon, Navesink, Lincroft, Eatontown, West Long Branch,
Rumson, Little Silver, Oceanport, and Shrewsbury.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4026 7398 4032 7416 4043 7410 4041 7400
4041 7398 4046 7401 4047 7400 4043 7397
TIME...MOT...LOC 2303Z 286DEG 17KT 4041 7399
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
PF699
WWUS51 KPHI 132325
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
725 PM EDT Wed Aug 13 2025
NJC025-132334-
/O.EXP.KPHI.SV.W.0217.000000T0000Z-250813T2330Z/
Monmouth NJ-
725 PM EDT Wed Aug 13 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MONMOUTH COUNTY
WILL EXPIRE AT 730 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.
LAT...LON 4026 7398 4032 7416 4043 7410 4041 7400
4041 7398 4046 7401 4047 7400 4043 7397
TIME...MOT...LOC 2324Z 286DEG 17KT 4038 7387
$$
PFThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 12:07 PM EDT | Flood Watch | PHI | Burlington, Camden, Gloucester, Mercer, Middlesex, Salem and 1 more | 9 hr |
| Aug 13, 4:47 PM EDT | Special Marine Warning | PHI | 88 min | |
| Aug 13, 4:49 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Somerset, Warren | 41 min |
| Aug 13, 5:26 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 36 min |
| Aug 13, 6:46 PM EDT | Special Marine Warning | PHI | 89 min | |
| Aug 13, 6:54 PM EDT | Flash Flood Warning | PHI | Burlington | 2 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.