Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 142, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 3, 2025, 5:56 PM EDT for Carbon County, Lehigh County, Northampton County, Pennsylvania. It was in force for 49 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 3, 2025, 5:56 PM EDT (21:56 UTC)
- Expired
- Jul 3, 2025, 6:45 PM EDT
- In force
- 49 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Carbon County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 141 km from the middle of the area, began a volume at 21:56 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 3, 1:30 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.9 hours before the alert went out and 235 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
- 1536 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted.
923
WUUS51 KPHI 032156
SVRPHI
PAC025-077-095-032245-
/O.NEW.KPHI.SV.W.0142.250703T2156Z-250703T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
556 PM EDT Thu Jul 3 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Lehigh County in eastern Pennsylvania...
Southern Carbon County in northeastern Pennsylvania...
Southwestern Northampton County in eastern Pennsylvania...
* Until 645 PM EDT.
* At 555 PM EDT, a severe thunderstorm was located over New Mahoning,
or near Lehighton, moving east at 30 mph.
HAZARD...60 mph wind gusts and half dollar 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...
Allentown, Lehighton, Bethlehem, Emmaus, Northampton, Palmerton,
Jim Thorpe, Slatington, Nesquehoning, Bath, Walnutport, Steuben,
New Mahoning, Neffs, Coffeetown, Berlinsville, Emerald,
Danielsville, Jordan Valley, and Beersville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
&&
LAT...LON 4089 7589 4084 7548 4081 7547 4083 7542
4081 7530 4051 7544 4071 7580 4074 7576
4083 7590 4084 7591
TIME...MOT...LOC 2155Z 287DEG 24KT 4081 7582
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse2 follow-up statements
435
WWUS51 KPHI 032207
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
607 PM EDT Thu Jul 3 2025
PAC025-077-095-032245-
/O.CON.KPHI.SV.W.0142.000000T0000Z-250703T2245Z/
Lehigh PA-Carbon PA-Northampton PA-
607 PM EDT Thu Jul 3 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR CENTRAL LEHIGH...SOUTHEASTERN CARBON AND SOUTHWESTERN NORTHAMPTON
COUNTIES...
At 607 PM EDT, a severe thunderstorm was located near Jordan Valley,
or near Lehighton, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Allentown, Lehighton, Bethlehem, Emmaus, Northampton, Palmerton,
Slatington, Bath, Walnutport, Steuben, New Mahoning, Neffs,
Coffeetown, Berlinsville, Emerald, Danielsville, Jordan Valley,
Beersville, Schnecksville, and Catasauqua.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 4085 7572 4084 7548 4081 7547 4083 7542
4081 7530 4051 7544 4071 7580 4074 7576
4079 7583
TIME...MOT...LOC 2207Z 286DEG 24KT 4077 7572
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse062
WWUS51 KPHI 032223
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
623 PM EDT Thu Jul 3 2025
PAC025-032233-
/O.CAN.KPHI.SV.W.0142.000000T0000Z-250703T2245Z/
Carbon PA-
623 PM EDT Thu Jul 3 2025
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARBON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
eastern and northeastern Pennsylvania.
LAT...LON 4081 7547 4083 7542 4081 7530 4051 7544
4072 7576
TIME...MOT...LOC 2223Z 287DEG 25KT 4069 7554
$$
PAC077-095-032245-
/O.CON.KPHI.SV.W.0142.000000T0000Z-250703T2245Z/
Lehigh PA-Northampton PA-
623 PM EDT Thu Jul 3 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR CENTRAL LEHIGH AND SOUTHWESTERN NORTHAMPTON COUNTIES...
At 623 PM EDT, a severe thunderstorm was located over Northampton, or
7 miles northwest of Allentown, moving east at 30 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Allentown, Bethlehem, Emmaus, Northampton, Slatington, Bath,
Walnutport, Steuben, Neffs, Coffeetown, Berlinsville, Jordan Valley,
Beersville, Emerald, Schnecksville, Catasauqua, Fountain Hill,
Coplay, North Catasauqua, and Chapman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 4081 7547 4083 7542 4081 7530 4051 7544
4072 7576
TIME...MOT...LOC 2223Z 287DEG 25KT 4069 7554
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 2:38 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 21 min |
| Jul 3, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery | 26 min |
| Jul 3, 3:35 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 40 min |
| Jul 3, 3:56 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 49 min |
| Jul 3, 4:41 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Carbon, Lehigh, Monroe, Northampton | 49 min |
| Jul 3, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 48 min |
| Jul 3, 6:11 PM EDT | Flash Flood Warning | PHI | Carbon, Lehigh, Northampton | 4 hr |
| Jul 3, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 34 min |
Nearby
Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.