Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 233, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Dec 19, 2025, 2:51 PM EST for 10 counties in New Jersey; Bucks County, Montgomery County, Philadelphia County, Pennsylvania. It was in force for 54 min. 4 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
- Dec 19, 2025, 2:51 PM EST (19:51 UTC)
- Expired
- Dec 19, 2025, 3:45 PM EST
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Somerset County, NJ, Bucks County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 19:54 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 |
|---|---|---|---|
| Dec 19, 3:03 PM EST | TSTM WND DMG | 1 Ne Ramblewood, NJ | Several 1-3 inch tree limbs down in the Birchfield community of Mount Laurel. |
| Dec 19, 3:03 PM EST | TSTM WND DMG | 1 Ne Ramblewood, NJ | Several 1-3 inch tree limbs down in the Birchfield community of Mount Laurel. |
| Dec 19, 3:05 PM EST | TSTM WND DMG | 2 Nne Mount Laurel, NJ | A few large limbs down on Larchmont Blvd south of Union Mill Rd. Time estimated by radar. |
| Dec 19, 3:05 PM EST | TSTM WND DMG | 2 Nne Mount Laurel, NJ | A few large limbs down on Larchmont Blvd south of Union Mill Rd. Time estimated by 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 12:00Z, 7.9 hours before the alert went out and 130 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
- 1 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 479 m²/s²
- 0-3 km storm-relative helicity
- 528 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
836
WUUS51 KPHI 191951
SVRPHI
NJC001-005-007-015-019-021-023-025-029-035-PAC017-091-101-192045-
/O.NEW.KPHI.SV.W.0233.251219T1951Z-251219T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
251 PM EST Fri Dec 19 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Ocean County in southern New Jersey...
Camden County in southern New Jersey...
Mercer County in central New Jersey...
Somerset County in northern New Jersey...
Northern Atlantic County in southern New Jersey...
Southeastern Hunterdon County in northwestern New Jersey...
Central Gloucester County in southern New Jersey...
Burlington County in southern New Jersey...
Monmouth County in central New Jersey...
Middlesex County in northern New Jersey...
East central Montgomery County in southeastern Pennsylvania...
Southeastern Bucks County in southeastern Pennsylvania...
Central Philadelphia County in southeastern Pennsylvania...
* Until 345 PM EST.
* At 251 PM EST, showers with damaging winds were located along a
line extending from near New Hope to Turnersville, moving east at
50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Philadelphia, Toms River, Trenton, Camden, New Brunswick, Perth
Amboy, Long Branch, Asbury Park, Somerville, Gloucester City, Sandy
Hook, Somerset, Edison, Lakewood, Cherry Hill, Middletown, Old
Bridge, Bensalem, Jackson, and Howell.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.
&&
LAT...LON 4017 7397 3960 7407 3968 7523 4046 7506
4065 7441 4060 7446 4060 7421 4056 7421
4050 7428 4047 7427 4044 7420 4046 7418
4045 7413 4041 7399 4048 7402 4047 7399
4043 7397
TIME...MOT...LOC 1951Z 268DEG 44KT 4038 7487 3975 7504
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Cooper2 follow-up statements
087
WWUS51 KPHI 192025
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
325 PM EST Fri Dec 19 2025
NJC015-PAC091-101-192035-
/O.CAN.KPHI.SV.W.0233.000000T0000Z-251219T2045Z/
Gloucester NJ-Montgomery PA-Philadelphia PA-
325 PM EST Fri Dec 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GLOUCESTER...EAST
CENTRAL MONTGOMERY AND CENTRAL PHILADELPHIA COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4013 7397 3967 7406 3968 7491 4051 7490
4060 7461 4061 7445 4060 7446 4060 7421
4056 7421 4055 7425 4050 7428 4047 7427
4044 7420 4046 7418 4041 7398 4048 7402
4048 7401 4043 7397
TIME...MOT...LOC 2025Z 264DEG 47KT 4051 7439 3976 7440
$$
NJC001-005-007-019-021-023-025-029-035-PAC017-192045-
/O.CON.KPHI.SV.W.0233.000000T0000Z-251219T2045Z/
Atlantic NJ-Ocean NJ-Hunterdon NJ-Camden NJ-Mercer NJ-Burlington NJ-
Somerset NJ-Monmouth NJ-Middlesex NJ-Bucks PA-
325 PM EST Fri Dec 19 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EST
FOR NORTHERN ATLANTIC...OCEAN...SOUTHEASTERN HUNTERDON...SOUTHEASTERN
CAMDEN...MERCER...BURLINGTON...SOUTHERN SOMERSET...MONMOUTH...
MIDDLESEX AND SOUTHEASTERN BUCKS COUNTIES...
At 325 PM EST, showers with damaging winds were located along a line
extending from Edison to near Warren Grove, moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Toms River, Trenton, New Brunswick, Perth Amboy, Long Branch, Asbury
Park, Somerville, Sandy Hook, Somerset, Edison, Lakewood, Middletown,
Old Bridge, Jackson, Howell, East Brunswick, Evesham, South
Brunswick, Sayreville, and North Brunswick.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.
&&
LAT...LON 4013 7397 3967 7406 3968 7491 4051 7490
4060 7461 4061 7445 4060 7446 4060 7421
4056 7421 4055 7425 4050 7428 4047 7427
4044 7420 4046 7418 4041 7398 4048 7402
4048 7401 4043 7397
TIME...MOT...LOC 2025Z 264DEG 47KT 4051 7439 3976 7440
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Cooper856
WWUS51 KPHI 192044
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
344 PM EST Fri Dec 19 2025
NJC001-005-007-019-021-023-025-029-035-PAC017-192054-
/O.EXP.KPHI.SV.W.0233.000000T0000Z-251219T2045Z/
Atlantic NJ-Ocean NJ-Hunterdon NJ-Camden NJ-Mercer NJ-Burlington NJ-
Somerset NJ-Monmouth NJ-Middlesex NJ-Bucks PA-
344 PM EST Fri Dec 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ATLANTIC...OCEAN...
SOUTHEASTERN HUNTERDON...SOUTHEASTERN CAMDEN...MERCER...BURLINGTON...
SOUTHERN SOMERSET...MONMOUTH...MIDDLESEX AND SOUTHEASTERN BUCKS
COUNTIES WILL EXPIRE AT 345 PM EST...
The showers which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 4013 7397 3967 7406 3968 7491 4051 7490
4060 7461 4061 7445 4060 7446 4060 7421
4056 7421 4055 7425 4050 7428 4047 7427
4044 7420 4046 7418 4041 7398 4048 7402
4048 7401 4043 7397
TIME...MOT...LOC 2044Z 268DEG 44KT 4052 7412 3977 7413
$$
CooperThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 19, 9:41 AM EST | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 3 more | 49 min |
| Dec 19, 12:28 PM EST | Areal Flood Warning | PHI | Hunterdon | 3 hr |
| Dec 19, 1:40 PM EST | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Hunterdon, Salem, Warren | 65 min |
| Dec 19, 2:41 PM EST | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 64 min |
| Dec 19, 3:31 PM EST | Special Marine Warning | PHI | 59 min | |
| Dec 19, 4:34 PM EST | High Wind Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 8 more | 5 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2025Severe Thunderstorm Warnings in Pennsylvania, 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.