Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 232, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Dec 19, 2025, 2:41 PM EST for 5 counties in Pennsylvania; 5 counties in New Jersey. It was in force for 64 min. 12 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, 2:41 PM EST (19:41 UTC)
- Expired
- Dec 19, 2025, 3:45 PM EST
- In force
- 64 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, Sussex County, NJ, Warren County, NJ, Bucks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 124 km from the middle of the area, began a volume at 19:41 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 19, 2:46 PM EST | TSTM WND GST 58 | Pocono Mountains Munici, PA | ASOS station KMPO Mt. Pocono. |
| Dec 19, 2:46 PM EST | TSTM WND GST 58 | Pocono Mountains Munici, PA | ASOS station KMPO Mt. Pocono. |
| Dec 19, 2:50 PM EST | TSTM WND GST 63 | Forks Twp, PA | |
| Dec 19, 2:50 PM EST | TSTM WND GST 63 | Forks Twp, PA | |
| Dec 19, 3:10 PM EST | TSTM WND DMG | 1 Ene Whitehouse Statio, NJ | Large 4-5 inch diameter branch downed on side of Old Highway 28; no lanes blocked. |
| Dec 19, 3:10 PM EST | TSTM WND DMG | 1 Ene Whitehouse Statio, NJ | Large 4-5 inch diameter branch downed on side of Old Highway 28; no lanes blocked. |
| Dec 19, 3:20 PM EST | TSTM WND DMG | 2 E Hackettstown, NJ | Two trees down on Route 46 westbound blocking a lane. |
| Dec 19, 3:20 PM EST | TSTM WND DMG | 2 E Hackettstown, NJ | Two trees down on Route 46 westbound blocking a lane. |
| Dec 19, 3:25 PM EST | TSTM WND DMG | Mount Arlington, NJ | Numerous 1-3 inch tree limbs downed. Time estimated from radar. |
| Dec 19, 3:25 PM EST | TSTM WND DMG | Mount Arlington, NJ | Numerous 1-3 inch tree limbs downed. Time estimated from radar. |
| Dec 19, 3:38 PM EST | TSTM WND DMG | Towaco, NJ | Tree on powerlines, snapping a power pole on Two Bridges Road near Hewlett Road in Towaco, forcing road closure. Trees also down on Pine Brook Road and Adams Way nearby. Time estimated from radar. |
| Dec 19, 3:38 PM EST | TSTM WND DMG | Towaco, NJ | Two trees down and branches down along Route 202 in Towaco. 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 12:00Z, 7.7 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
- 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.
828
WUUS51 KPHI 191941
SVRPHI
NJC019-027-035-037-041-PAC017-025-077-089-095-192045-
/O.NEW.KPHI.SV.W.0232.251219T1941Z-251219T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
241 PM EST Fri Dec 19 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Morris County in northern New Jersey...
Hunterdon County in northwestern New Jersey...
Sussex County in northwestern New Jersey...
Warren County in northwestern New Jersey...
Northern Somerset County in northern New Jersey...
East central Lehigh County in eastern Pennsylvania...
East central Carbon County in northeastern Pennsylvania...
Northwestern Bucks County in southeastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
Northampton County in eastern Pennsylvania...
* Until 345 PM EST.
* At 241 PM EST, showers with damaging winds were located along a
line extending from near Blakeslee to near Quakertown, moving
northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Allentown, Easton, Morristown, Somerville, Newton, Montague, Mount
Pocono, Bethlehem, Bridgewater, Dover, Madison, Hopatcong, Forks,
Florham Park, East Hanover, Lincoln Park, Kinnelon, East
Stroudsburg, Hackettstown, and Quakertown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
These showers with damaging winds contain little or no lightning. Do
not wait until you hear thunder before taking cover.
&&
LAT...LON 4120 7436 4109 7450 4104 7450 4105 7445
4100 7430 4090 7427 4091 7434 4075 7436
4066 7445 4065 7440 4032 7532 4116 7561
4123 7548 4125 7513 4115 7515 4114 7509
4108 7503 4116 7490 4132 7479 4136 7469
TIME...MOT...LOC 1941Z 240DEG 45KT 4111 7556 4041 7533
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
RCM2 follow-up statements
701
WWUS51 KPHI 192014
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
314 PM EST Fri Dec 19 2025
PAC017-025-077-192024-
/O.CAN.KPHI.SV.W.0232.000000T0000Z-251219T2045Z/
Lehigh PA-Carbon PA-Bucks PA-
314 PM EST Fri Dec 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LEHIGH...EAST
CENTRAL CARBON AND NORTHWESTERN BUCKS COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4043 7502 4124 7536 4125 7513 4115 7515
4114 7509 4108 7503 4116 7490 4132 7479
4136 7469 4120 7436 4109 7450 4104 7450
4105 7445 4100 7430 4090 7427 4091 7434
4075 7436 4066 7445 4065 7440
TIME...MOT...LOC 2014Z 244DEG 54KT 4135 7494 4058 7466
$$
NJC019-027-035-037-041-PAC089-095-192045-
/O.CON.KPHI.SV.W.0232.000000T0000Z-251219T2045Z/
Morris NJ-Hunterdon NJ-Sussex NJ-Warren NJ-Somerset NJ-Monroe PA-
Northampton PA-
314 PM EST Fri Dec 19 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EST
FOR MORRIS...HUNTERDON...SUSSEX...WARREN...NORTHERN SOMERSET...
NORTHEASTERN MONROE AND NORTHEASTERN NORTHAMPTON COUNTIES...
At 314 PM EST, severe thunderstorms were located along a line
extending from near Greeley to Bridgewater, moving northeast at 60
mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Morristown, Somerville, Newton, Montague, Bridgewater, Dover,
Madison, Hopatcong, Florham Park, East Hanover, Lincoln Park,
Kinnelon, East Stroudsburg, Hackettstown, Chatham, Boonton, Butler,
Wharton, Washington, and Rockaway.
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 4043 7502 4124 7536 4125 7513 4115 7515
4114 7509 4108 7503 4116 7490 4132 7479
4136 7469 4120 7436 4109 7450 4104 7450
4105 7445 4100 7430 4090 7427 4091 7434
4075 7436 4066 7445 4065 7440
TIME...MOT...LOC 2014Z 244DEG 54KT 4135 7494 4058 7466
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Cooper612
WWUS51 KPHI 192043
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
343 PM EST Fri Dec 19 2025
NJC019-027-035-037-041-PAC089-095-192053-
/O.EXP.KPHI.SV.W.0232.000000T0000Z-251219T2045Z/
Morris NJ-Hunterdon NJ-Sussex NJ-Warren NJ-Somerset NJ-Monroe PA-
Northampton PA-
343 PM EST Fri Dec 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR MORRIS...HUNTERDON...SUSSEX...
WARREN...NORTHERN SOMERSET...NORTHEASTERN MONROE AND NORTHEASTERN
NORTHAMPTON COUNTIES WILL EXPIRE AT 345 PM EST...
The showers which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.
LAT...LON 4043 7502 4124 7536 4125 7513 4115 7515
4114 7509 4108 7503 4116 7490 4132 7479
4136 7469 4120 7436 4109 7450 4104 7450
4105 7445 4100 7430 4090 7427 4091 7434
4075 7436 4066 7445 4065 7440
TIME...MOT...LOC 2043Z 270DEG 45KT 4152 7454 4075 7426
$$
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 | Bucks, Philadelphia | 49 min |
| Dec 19, 1:40 PM EST | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 65 min |
| Dec 19, 2:51 PM EST | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 54 min |
| Dec 19, 4:34 PM EST | High Wind Warning | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 5 hr |
| Dec 19, 12:28 PM EST | Areal Flood Warning | PHI | Hunterdon | 3 hr |
| Dec 19, 3:31 PM EST | Special Marine Warning | PHI | 59 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2025Severe 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.