Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 152, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 5, 2026, 8:58 PM EDT for Berks County, Chester County, Montgomery County, Pennsylvania. It was in force for 77 min. 1 report 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
- Jul 5, 2026, 8:58 PM EDT (00:58 UTC)
- Expired
- Jul 5, 2026, 10:15 PM EDT
- In force
- 77 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Berks County, PA, Chester County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 138 km from the middle of the area, began a volume at 01:01 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 |
|---|---|---|---|
| Jul 5, 9:30 PM EDT | TSTM WND DMG | 1 Sw North Heidelberg T, PA | Trees blown down and shingles blown off a roof. Time estimated from radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 5, 6:44 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 1.0 hours before the alert went out and 188 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
- 2754 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1313 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted.
985
WUUS51 KPHI 060058
SVRPHI
PAC011-029-091-060215-
/O.NEW.KPHI.SV.W.0152.260706T0058Z-260706T0215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
858 PM EDT Sun Jul 5 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Berks County in eastern Pennsylvania...
Northwestern Montgomery County in southeastern Pennsylvania...
Central Chester County in southeastern Pennsylvania...
* Until 1015 PM EDT.
* At 858 PM EDT, severe thunderstorms were located along a line
extending from near Fredericksburg to Homeville, 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...
Reading, Pottstown, Phoenixville, Coatesville, Wyomissing,
Downingtown, Birdsboro, Collegeville, Oxford, Kutztown, Royersford,
Hamburg, Fleetwood, Sinking Spring, Laureldale, Parkesburg, Trappe,
Womelsdorf, Wernersville, and Topton.
This includes the following highways...
Pennsylvania Turnpike between mile markers 296 and 315.
Interstate 78 in Pennsylvania near mile marker 8, and between mile
markers 10 and 44.
Interstate 176 in Pennsylvania between mile markers 1 and 11.
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 these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4049 7643 4054 7617 4058 7606 4057 7602
4063 7600 4068 7589 4048 7558 4023 7539
3975 7600 3982 7603 3987 7601 3987 7599
3990 7599 4004 7593 4011 7594 4014 7588
TIME...MOT...LOC 0058Z 219DEG 29KT 4042 7641 3987 7600
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS2 follow-up statements
736
WWUS51 KPHI 060132
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
932 PM EDT Sun Jul 5 2026
PAC011-029-091-060215-
/O.CON.KPHI.SV.W.0152.000000T0000Z-260706T0215Z/
Berks PA-Montgomery PA-Chester PA-
932 PM EDT Sun Jul 5 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR BERKS...WEST CENTRAL MONTGOMERY AND NORTHWESTERN CHESTER
COUNTIES...
At 932 PM EDT, severe thunderstorms were located along a line
extending from near Strausstown to near Sinking Spring to Gap, moving
northeast at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Reading, Pottstown, Coatesville, Wyomissing, Birdsboro, Kutztown,
Hamburg, Fleetwood, Sinking Spring, Laureldale, Parkesburg,
Womelsdorf, Wernersville, Topton, Robesonia, Leesport, Honey Brook,
Shoemakersville, Elverson, and Bernville.
This includes the following highways...
Pennsylvania Turnpike between mile markers 296 and 310.
Interstate 78 in Pennsylvania between mile markers 11 and 44.
Interstate 176 in Pennsylvania between mile markers 1 and 11.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4055 7569 4016 7556 3989 7599 3990 7599
4004 7593 4011 7594 4014 7588 4031 7615
4049 7639 4050 7638 4054 7617 4058 7606
4057 7602 4063 7600 4068 7589
TIME...MOT...LOC 0132Z 220DEG 19KT 4048 7629 4030 7605 3997 7601
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS345
WWUS51 KPHI 060206
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1006 PM EDT Sun Jul 5 2026
PAC011-029-091-060215-
/O.EXP.KPHI.SV.W.0152.000000T0000Z-260706T0215Z/
Berks PA-Montgomery PA-Chester PA-
1006 PM EDT Sun Jul 5 2026
...THE SEVERE THUNDERSTORM WARNING FOR BERKS...WEST CENTRAL
MONTGOMERY AND NORTHWESTERN CHESTER COUNTIES WILL EXPIRE AT 1015 PM
EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However heavy rain
is still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 100 AM EDT for
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 4055 7569 4016 7556 3989 7599 3990 7599
4004 7593 4011 7594 4014 7588 4031 7615
4049 7639 4050 7638 4054 7617 4058 7606
4057 7602 4063 7600 4068 7589
TIME...MOT...LOC 0205Z 219DEG 29KT 4068 7608 4050 7584 4017 7580
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 9:05 PM EDT | Flash Flood Warning | PHI | Berks | 6 hr |
| Jul 5, 9:57 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 63 min |
| Jul 5, 10:05 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 40 min |
| Jul 5, 10:32 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| Jul 5, 10:37 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 38 min |
| Jul 5, 11:00 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 5, 11:30 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 45 min |
| Jul 6, 10:15 AM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 6, 11:13 AM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Jul 6, 2:15 PM EDT | Areal Flood Warning | PHI | Delaware, Montgomery, Philadelphia | 4 hr |
| Jul 6, 2:40 PM EDT | Areal Flood Warning | PHI | Bucks, Philadelphia | 4 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2026Every severe thunderstorm warning in 2026
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.