Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 112, NWS Philadelphia/Mount Holly

June 26, 2023Berks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2023, 9:18 PM EDT for Berks County, Pennsylvania. It was in force for 42 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 26, 2023, 9:18 PM EDT (01:18 UTC)
Expired
Jun 26, 2023, 10:00 PM EDT
In force
42 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

County Berks County, PA

The radar

The Philadelphia radar (KDIX), 150 km from the middle of the area, began a volume at 01:19 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.

IssuedProductOfficeLasted
Jun 26, 1:11 PM EDTSevere Thunderstorm WatchSPC11 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.3 hours before the alert went out and 214 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 2023-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1362 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2023-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1362 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1456 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

558 
WUUS51 KPHI 270118
SVRPHI
PAC011-270200-
/O.NEW.KPHI.SV.W.0112.230627T0118Z-230627T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
918 PM EDT Mon Jun 26 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Berks County in eastern Pennsylvania...

* Until 1000 PM EDT.

* At 917 PM EDT, a severe thunderstorm was located over Bernville, or
  8 miles northwest of Reading, moving northeast 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...
  Reading, Wyomissing, Kutztown, Hamburg, Fleetwood, Sinking Spring,
  Laureldale, Wernersville, Topton, Leesport, Shoemakersville,
  Bernville, Lyons, Lenhartsville, Fairview Hgts, Spring Ridge,
  Centerport, Wyomissing Hills, West Lawn and Whitfield.

This includes Interstate 78 in Pennsylvania between mile markers 24
and 43.
 
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 4058 7606 4058 7604 4057 7602 4063 7600
      4065 7598 4067 7590 4050 7564 4029 7606
      4043 7621
TIME...MOT...LOC 0117Z 229DEG 25KT 4041 7607 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS
2 follow-up statements
393 
WWUS51 KPHI 270134
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
934 PM EDT Mon Jun 26 2023

PAC011-270200-
/O.CON.KPHI.SV.W.0112.000000T0000Z-230627T0200Z/
Berks PA-
934 PM EDT Mon Jun 26 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHEASTERN BERKS COUNTY...

At 934 PM EDT, a severe thunderstorm was located over Leesport, or 8
miles north of Reading, moving northeast at 25 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...
Reading, Wyomissing, Kutztown, Hamburg, Fleetwood, Laureldale,
Topton, Leesport, Shoemakersville, Lyons, Lenhartsville, Fairview
Hgts, Spring Ridge, Centerport and Wyomissing Hills.

This includes Interstate 78 in Pennsylvania between mile markers 27
and 43.
 
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 4033 7598 4050 7612 4065 7587 4050 7564
TIME...MOT...LOC 0134Z 236DEG 21KT 4045 7598 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS
904 
WWUS51 KPHI 270152
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
952 PM EDT Mon Jun 26 2023

PAC011-270201-
/O.EXP.KPHI.SV.W.0112.000000T0000Z-230627T0200Z/
Berks PA-
952 PM EDT Mon Jun 26 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERKS COUNTY WILL
EXPIRE AT 1000 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
eastern 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 4033 7598 4050 7612 4065 7587 4050 7564
TIME...MOT...LOC 0151Z 229DEG 25KT 4053 7587 

$$

MPS

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 8:27 PM EDTSpecial Weather StatementPHIChester33 min
Jun 26, 8:33 PM EDTSpecial Weather StatementPHIPhiladelphia27 min
Jun 26, 8:36 PM EDTSpecial Weather StatementPHIBucks24 min
Jun 26, 8:40 PM EDTSevere Thunderstorm WarningPHIChester31 min
Jun 26, 8:42 PM EDTSevere Thunderstorm WarningPHIBucks48 min
Jun 26, 9:30 PM EDTFlash Flood WarningPHIMonroe, Northampton3 hr
Jun 26, 9:47 PM EDTSevere Thunderstorm WarningPHIChester, Montgomery43 min
Jun 26, 9:51 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Philadelphia54 min
Jun 26, 9:58 PM EDTSevere Thunderstorm WarningPHIChester47 min
Jun 26, 10:33 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia42 min
Jun 26, 10:54 PM EDTAreal Flood AdvisoryPHIBerks, Chester, Delaware, Montgomery, Philadelphia3 hr
Jun 26, 11:07 PM EDTSevere Thunderstorm WarningPHIBucks, Philadelphia53 min
Jun 26, 11:27 PM EDTAreal Flood AdvisoryPHIBucks, Montgomery, Philadelphia3 hr
Jun 26, 11:35 PM EDTFlash Flood WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia6 hr
Jun 27, 12:00 AM EDTAreal Flood WarningPHIBucks, Lehigh, Monroe, Northampton7 hr
Jun 27, 12:51 AM EDTFlash Flood WarningPHIChester, Montgomery4 hr
Jun 27, 1:23 AM EDTSpecial Weather StatementPHIMontgomery37 min
Jun 27, 2:23 AM EDTRiver Flood WarningPHIChester6 hr
Jun 27, 2:29 AM EDTSpecial Weather StatementPHIDelaware31 min
Jun 27, 3:01 AM EDTSpecial Weather StatementPHIDelaware, Montgomery, Philadelphia29 min
Jun 27, 3:02 AM EDTFlood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more46 min
Jun 27, 3:26 AM EDTRiver Flood WarningPHIDelaware4 hr
Jun 27, 3:48 AM EDTFlood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more17 hr
Jun 27, 3:54 AM EDTRiver Flood WarningPHIChester, Delaware5 hr
Jun 27, 6:14 AM EDTAreal Flood WarningPHIMontgomery, Philadelphia3 hr
Jun 27, 6:16 AM EDTAreal Flood WarningPHIChester, Delaware3 hr
Jun 27, 10:08 AM EDTRiver Flood WarningPHIChester, Delaware109 min
Jun 27, 12:45 PM EDTSpecial Weather StatementPHIBerks30 min
Jun 27, 2:13 PM EDTSevere Thunderstorm WarningPHIChester47 min
Jun 27, 2:18 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe22 min
Jun 27, 2:21 PM EDTSpecial Weather StatementPHIBerks24 min
Jun 27, 2:42 PM EDTAreal Flood AdvisoryPHIBerks3 hr
Jun 27, 2:57 PM EDTAreal Flood AdvisoryPHIChester3 hr
Jun 27, 3:07 PM EDTSevere Thunderstorm WarningPHIBerks38 min
Jun 27, 3:25 PM EDTSevere Thunderstorm WarningPHIChester19 min
Jun 27, 3:33 PM EDTSpecial Weather StatementPHIDelaware27 min
Jun 27, 3:57 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery, Philadelphia48 min
Jun 27, 4:06 PM EDTSpecial Weather StatementPHINorthampton24 min
Jun 27, 4:24 PM EDTAreal Flood AdvisoryPHINorthampton3 hr
Jun 27, 4:30 PM EDTSevere Thunderstorm WarningPHIMontgomery, Philadelphia32 min
Jun 27, 4:33 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton42 min
Jun 27, 4:39 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery, Philadelphia51 min
Jun 27, 4:58 PM EDTAreal Flood AdvisoryPHIBucks, Montgomery, Philadelphia3 hr
Jun 27, 5:01 PM EDTSevere Thunderstorm WarningPHINorthampton44 min
Jun 27, 5:22 PM EDTSevere Thunderstorm WarningPHIBucks, Philadelphia38 min
Jun 27, 5:43 PM EDTSpecial Weather StatementPHIMonroe, Northampton32 min
Jun 27, 5:44 PM EDTFlash Flood WarningPHIBucks, Montgomery, Philadelphia5 hr
Jun 27, 5:52 PM EDTAreal Flood AdvisoryPHINorthampton3 hr
Jun 27, 5:57 PM EDTAreal Flood AdvisoryPHIBucks, Delaware, Philadelphia3 hr
Jun 27, 6:15 PM EDTSpecial Weather StatementPHINorthampton45 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2023Every severe thunderstorm warning in 2023

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.