Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 17, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 15, 2025, 4:07 PM EDT for Sussex County, Warren County, New Jersey; Monroe County, Pennsylvania. It was in force for 53 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
- Apr 15, 2025, 4:07 PM EDT (20:07 UTC)
- Expired
- Apr 15, 2025, 5:00 PM EDT
- In force
- 53 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, Monroe County, PA
The radar
The Binghamton radar (KBGM), 140 km from the middle of the area, began a volume at 20:07 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 |
|---|---|---|---|
| Apr 15, 4:20 PM EDT | TSTM WND DMG | 1 Ne Barrett Twp, PA | A few trees down between Skytop and Mountainhome. Time estimated from radar. |
| Apr 15, 4:20 PM EDT | TSTM WND DMG | Mountainhome, PA | A few large trees down in the Mountainhome area. Time estimated by radar. |
| Apr 15, 4:40 PM EDT | TSTM WND DMG | 4 Sw Millbrook, NJ | Old Mine Road, Mile Post 7, near Poxono Boat Launch, is closed due to trees on wires blocking the roadway. Time estimated from radar. |
| Apr 15, 4:43 PM EDT | TSTM WND DMG | Montague, NJ | A couple of trees down. 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, 8.1 hours before the alert went out and 178 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1029 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
441
WUUS51 KPHI 152007
SVRPHI
NJC037-041-PAC089-152100-
/O.NEW.KPHI.SV.W.0017.250415T2007Z-250415T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
407 PM EDT Tue Apr 15 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Sussex County in northwestern New Jersey...
Northeastern Warren County in northwestern New Jersey...
Northern Monroe County in northeastern Pennsylvania...
* Until 500 PM EDT.
* At 407 PM EDT, a severe thunderstorm was located over Lehigh, or 10
miles northwest of Mount Pocono, moving east at 45 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...
High Point, Henryville, Blairstown, Werry Lake, Millbrook,
Greendell, Skytop, Mountainhome, Tobyhanna, Alpine Mountain,
Pellettown, Crandon Lakes, Andover, Hidden Lake, Branchville,
Sussex, Hainesville, Flatbrookville, Cresco, and Canadensis.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 19 and 22.
Interstate 380 in Pennsylvania between mile markers 4 and 13.
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 4130 7456 4129 7455 4090 7479 4118 7558
4123 7554 4125 7513 4115 7515 4114 7509
4108 7503 4116 7490 4127 7484 4135 7475
4136 7469
TIME...MOT...LOC 2007Z 284DEG 37KT 4126 7544
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann2 follow-up statements
432
WWUS51 KPHI 152026
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
426 PM EDT Tue Apr 15 2025
NJC037-041-PAC089-152100-
/O.CON.KPHI.SV.W.0017.000000T0000Z-250415T2100Z/
Sussex NJ-Warren NJ-Monroe PA-
426 PM EDT Tue Apr 15 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SUSSEX...NORTHEASTERN WARREN AND NORTHEASTERN MONROE COUNTIES...
At 425 PM EDT, a shower capable of producing severe wind gusts was
located near Skytop, or 11 miles northeast of Mount Pocono, moving
east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
High Point, Henryville, Blairstown, Werry Lake, Millbrook, Greendell,
Skytop, Mountainhome, Alpine Mountain, Pellettown, Crandon Lakes,
Andover, Hidden Lake, Branchville, Sussex, Hainesville,
Flatbrookville, Cresco, Canadensis, and Montague.
This includes Interstate 80 in New Jersey between mile markers 19 and
22.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.
&&
LAT...LON 4130 7456 4129 7455 4090 7479 4109 7532
4124 7539 4125 7513 4115 7515 4114 7509
4108 7503 4116 7490 4127 7484 4135 7475
4136 7469
TIME...MOT...LOC 2025Z 283DEG 38KT 4120 7517
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann993
WWUS51 KPHI 152040
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
440 PM EDT Tue Apr 15 2025
NJC037-041-PAC089-152100-
/O.CON.KPHI.SV.W.0017.000000T0000Z-250415T2100Z/
Sussex NJ-Warren NJ-Monroe PA-
440 PM EDT Tue Apr 15 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SUSSEX...NORTHEASTERN WARREN AND EAST CENTRAL MONROE COUNTIES...
At 439 PM EDT, a severe thunderstorm was located near Flatbrookville,
or 12 miles southwest of Montague, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Law enforcement. Reports of a couple trees down in Skytop
and Mountainhome.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Flatbrookville, High Point, Blairstown, Werry Lake, Millbrook,
Greendell, Montague, Newton, Five Points, Pellettown, Crandon Lakes,
Marshalls Creek, Andover, Echo Lake, Hidden Lake, Branchville,
Sussex, Hainesville, Shawnee, and Allamuchy-Panther Valley.
This includes Interstate 80 in New Jersey between mile markers 19 and
22.
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 4130 7456 4129 7455 4090 7479 4103 7516
4114 7509 4108 7503 4116 7490 4127 7484
4135 7475 4136 7469
TIME...MOT...LOC 2039Z 283DEG 41KT 4117 7495
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 1:09 PM EDT | Wind Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 7 hr |
| Apr 15, 1:15 PM EDT | Gale Warning | PHI | 11 hr | |
| Apr 15, 4:58 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 39 min |
| Apr 15, 3:07 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 53 min |
| Apr 15, 3:56 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more | 49 min |
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.