Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 77, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2025, 5:31 PM EDT for Bucks County, Montgomery County, Pennsylvania. It was in force for 44 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
- Jun 19, 2025, 5:31 PM EDT (21:31 UTC)
- Expired
- Jun 19, 2025, 6:15 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Bucks County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 88 km from the middle of the area, began a volume at 21:35 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 |
|---|---|---|---|
| Jun 19, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.5 hours before the alert went out and 201 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
- 14 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 907 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
205
WUUS51 KPHI 192131
SVRPHI
PAC017-091-192215-
/O.NEW.KPHI.SV.W.0077.250619T2131Z-250619T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
531 PM EDT Thu Jun 19 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Montgomery County in southeastern Pennsylvania...
Northwestern Bucks County in southeastern Pennsylvania...
* Until 615 PM EDT.
* At 530 PM EDT, a severe thunderstorm was located over
Schwenksville, or 22 miles northwest of Philadelphia, moving
northeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Lansdale, West Norriton, East Norriton, Quakertown, Perkasie,
Doylestown, Souderton, Bedminster, Collegeville, Chalfont, Tinicum,
Trappe, Hatfield, Dublin, Ferndale, Schwenksville, Riegelsville,
Green Lane, Pleasant Valley, and Fricks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4059 7524 4061 7520 4057 7518 4058 7512
4054 7507 4049 7506 4045 7507 4042 7506
4040 7503 4014 7538 4026 7556
TIME...MOT...LOC 2130Z 220DEG 31KT 4026 7541
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS2 follow-up statements
390
WWUS51 KPHI 192155
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
555 PM EDT Thu Jun 19 2025
PAC091-192204-
/O.CAN.KPHI.SV.W.0077.000000T0000Z-250619T2215Z/
Montgomery PA-
555 PM EDT Thu Jun 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONTGOMERY COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northwestern New Jersey...and southeastern Pennsylvania.
LAT...LON 4028 7518 4026 7522 4026 7523 4027 7524
4034 7532 4054 7507 4049 7506 4045 7507
4042 7506 4040 7503
TIME...MOT...LOC 2154Z 228DEG 31KT 4032 7517
$$
PAC017-192215-
/O.CON.KPHI.SV.W.0077.000000T0000Z-250619T2215Z/
Bucks PA-
555 PM EDT Thu Jun 19 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR CENTRAL BUCKS COUNTY...
At 554 PM EDT, a severe thunderstorm was located over Doylestown, or
21 miles north of Philadelphia, moving northeast at 35 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Perkasie, Doylestown, Bedminster, Chalfont, Tinicum, Dublin, Fricks,
Pipersville, Erwinna, Gardenville, Lumberville, Sellersville, New
Britain, Silverdale, Brittany Farms-Highlands, and Montgomeryville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
&&
LAT...LON 4028 7518 4026 7522 4026 7523 4027 7524
4034 7532 4054 7507 4049 7506 4045 7507
4042 7506 4040 7503
TIME...MOT...LOC 2154Z 228DEG 31KT 4032 7517
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS118
WWUS51 KPHI 192207
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
607 PM EDT Thu Jun 19 2025
PAC017-192217-
/O.EXP.KPHI.SV.W.0077.000000T0000Z-250619T2215Z/
Bucks PA-
607 PM EDT Thu Jun 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL BUCKS COUNTY WILL
EXPIRE AT 615 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northwestern New Jersey...and southeastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4028 7518 4026 7522 4026 7523 4027 7524
4034 7532 4054 7507 4049 7506 4045 7507
4042 7506 4040 7503
TIME...MOT...LOC 2207Z 220DEG 31KT 4039 7509
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 12:06 AM EDT | Areal Flood Warning | PHI | Berks | 2 hr |
| Jun 19, 4:34 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 41 min |
| Jun 19, 5:02 PM EDT | Tornado Warning | PHI | Chester, Delaware | 15 min |
| Jun 19, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Jun 19, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 52 min |
| Jun 19, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 50 min |
| Jun 19, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 31 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.