Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 32, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 3, 2025, 8:47 PM EDT for 6 counties in Pennsylvania. It was in force for 43 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
- May 3, 2025, 8:47 PM EDT (00:47 UTC)
- Expired
- May 3, 2025, 9:30 PM EDT
- In force
- 43 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Berks County, PA, Bucks County, PA, Chester County, PA, Lehigh County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 103 km from the middle of the area, began a volume at 00:48 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 |
|---|---|---|---|
| May 3, 5:51 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.8 hours before the alert went out and 213 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
- 244 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 1274 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted.
908
WUUS51 KPHI 040047
SVRPHI
PAC011-017-029-077-091-095-040130-
/O.NEW.KPHI.SV.W.0032.250504T0047Z-250504T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
847 PM EDT Sat May 3 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Berks County in eastern Pennsylvania...
Southeastern Lehigh County in eastern Pennsylvania...
Northwestern Montgomery County in southeastern Pennsylvania...
Northwestern Bucks County in southeastern Pennsylvania...
Northern Chester County in southeastern Pennsylvania...
South central Northampton County in eastern Pennsylvania...
* Until 930 PM EDT.
* At 846 PM EDT, a severe thunderstorm was located over Glenmoore, or
13 miles east of New Holland, moving northeast at 40 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...
Fricks, Boyertown, Modena, Pottsgrove, Dublin, Thorndale,
Evansburg, New Morgan, Hatfield, Perkasie, Pughtown, Eagleville,
Stowe, Pennsburg, Spring Mount, Bechtelsville, Lansdale,
Montgomeryville, Doylestown, and Schwenksville.
This includes the following highways...
Pennsylvania Turnpike between mile markers 296 and 319.
Northeast Extension between mile markers 26 and 49.
Interstate 176 in Pennsylvania between mile markers 1 and 5.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4004 7593 4011 7594 4014 7588 4020 7595
4051 7547 4060 7522 4046 7507 4042 7506
4040 7500 4036 7496 3988 7594 3999 7597
TIME...MOT...LOC 0046Z 237DEG 36KT 4010 7583
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich2 follow-up statements
462
WWUS51 KPHI 040111
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
911 PM EDT Sat May 3 2025
PAC011-017-029-077-091-095-040130-
/O.CON.KPHI.SV.W.0032.000000T0000Z-250504T0130Z/
Berks PA-Lehigh PA-Montgomery PA-Bucks PA-Chester PA-Northampton PA-
911 PM EDT Sat May 3 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR SOUTHEASTERN BERKS...SOUTHEASTERN LEHIGH...NORTHWESTERN
MONTGOMERY...NORTHWESTERN BUCKS...NORTHEASTERN CHESTER AND SOUTH
CENTRAL NORTHAMPTON COUNTIES...
At 911 PM EDT, a severe thunderstorm was located over Cedarville, or
16 miles southeast of Reading, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Fricks, Boyertown, Pottsgrove, Dublin, Evansburg, Hatfield, Perkasie,
Pughtown, Eagleville, Stowe, Pennsburg, Spring Mount, Bechtelsville,
Lansdale, Montgomeryville, Doylestown, Schwenksville, Chalfont,
Phoenixville, and Silverdale.
This includes the following highways...
Pennsylvania Turnpike between mile markers 306 and 316.
Northeast Extension between mile markers 27 and 49.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4045 7554 4049 7550 4051 7547 4060 7522
4045 7507 4042 7506 4040 7501 4036 7497
4002 7568 4022 7586
TIME...MOT...LOC 0111Z 232DEG 26KT 4020 7566
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich720
WWUS51 KPHI 040130
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
930 PM EDT Sat May 3 2025
PAC011-017-029-077-091-095-040140-
/O.EXP.KPHI.SV.W.0032.000000T0000Z-250504T0130Z/
Berks PA-Lehigh PA-Montgomery PA-Bucks PA-Chester PA-Northampton PA-
930 PM EDT Sat May 3 2025
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BERKS...
SOUTHEASTERN LEHIGH...NORTHWESTERN MONTGOMERY...NORTHWESTERN BUCKS...
NORTHEASTERN CHESTER AND SOUTH CENTRAL NORTHAMPTON COUNTIES HAS
EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire. However gusty winds are still possible with
this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northwestern New Jersey...and eastern and southeastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4045 7554 4049 7550 4051 7547 4060 7522
4045 7507 4042 7506 4040 7501 4036 7497
4002 7568 4022 7586
TIME...MOT...LOC 0130Z 237DEG 36KT 4030 7546
$$
HoeflichThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 8:10 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 50 min |
| May 3, 9:50 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 17 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.