Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 94, NWS Philadelphia/Mount Holly

June 26, 2023Berks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2023, 1:13 PM EDT for Berks County, Pennsylvania. It was in force for 47 min. 2 reports 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: Jun 26, 2023, 1:13 PM EDT (17:13 UTC)
Expired: Jun 26, 2023, 2:00 PM EDT
In force: 47 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Berks County, PA

The radar

The State College radar (KCCX), 156 km from the middle of the area, began a volume at 17:14 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
Jun 26, 1:30 PM EDT	HAIL 0.5	4 E Fredericksburg, PA	Report from mPING: Half-inch (0.50 in.).
Jun 26, 1:30 PM EDT	HAIL 0.5	4 E Fredericksburg, PA	Report from mPING: Half-inch (0.50 in.).

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
Jun 26, 1:11 PM EDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 5.2 hours before the alert went out and 200 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 543 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 58 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

855 
WUUS51 KPHI 261713
SVRPHI
PAC011-261800-
/O.NEW.KPHI.SV.W.0094.230626T1713Z-230626T1800Z/

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

The National Weather Service in Mount Holly NJ has issued a

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

* Until 200 PM EDT.

* At 113 PM EDT, a severe thunderstorm was located over
  Fredericksburg, or 9 miles northwest of Myerstown, moving northeast
  at 25 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...
  Strausstown.

This includes Interstate 78 in Pennsylvania near mile marker 8, and
between mile markers 10 and 27.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4052 7634 4052 7625 4056 7611 4056 7608
      4050 7603 4039 7628 4049 7643
TIME...MOT...LOC 1713Z 224DEG 22KT 4048 7643 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

AKL

1 follow-up statement

050 
WWUS51 KPHI 261801
SVSPHI

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

PAC011-261810-
/O.EXP.KPHI.SV.W.0094.000000T0000Z-230626T1800Z/
Berks PA-
201 PM EDT Mon Jun 26 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BERKS COUNTY HAS
EXPIRED...
                
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 has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
eastern Pennsylvania.

Remember, a Severe Thunderstorm Warning still remains in effect for
North Central Berks until 215 PM EDT.

LAT...LON 4052 7634 4052 7625 4056 7611 4056 7608
      4050 7603 4039 7628 4049 7643
TIME...MOT...LOC 1800Z 224DEG 22KT 4068 7618 

$$

AKL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 3:33 AM EDT	Flood Watch	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	23 hr
Jun 26, 8:41 AM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	49 min
Jun 26, 9:18 AM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe, Northampton	42 min
Jun 26, 9:47 AM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	43 min
Jun 26, 1:35 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	40 min
Jun 26, 2:04 PM EDT	Severe Thunderstorm Warning	PHI	Berks	41 min
Jun 26, 2:06 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	39 min
Jun 26, 2:12 PM EDT	Tornado Warning	PHI	Berks, Lehigh	21 min
Jun 26, 2:21 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh	54 min
Jun 26, 2:23 PM EDT	Areal Flood Advisory	PHI	Berks, Carbon, Lehigh	107 min
Jun 26, 2:31 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	44 min
Jun 26, 2:32 PM EDT	Flash Flood Warning	PHI	Berks, Lehigh	67 min
Jun 26, 2:40 PM EDT	Special Weather Statement	PHI	Bucks	35 min
Jun 26, 2:58 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	47 min
Jun 26, 3:02 PM EDT	Tornado Warning	PHI	Northampton	28 min
Jun 26, 3:03 PM EDT	Areal Flood Advisory	PHI	Monroe	104 min
Jun 26, 3:25 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	41 min
Jun 26, 3:56 PM EDT	Areal Flood Advisory	PHI	Monroe, Northampton	2 hr
Jun 26, 4:04 PM EDT	Special Weather Statement	PHI	Northampton	41 min
Jun 26, 4:50 PM EDT	Areal Flood Advisory	PHI	Lehigh, Northampton	73 min
Jun 26, 5:47 PM EDT	Special Weather Statement	PHI	Lebanon	28 min
Jun 26, 5:59 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	24 min
Jun 26, 6:00 PM EDT	Areal Flood Advisory	PHI	Monroe, Northampton	4 hr
Jun 26, 6:03 PM EDT	Flash Flood Warning	PHI	Lehigh, Northampton	6 hr
Jun 26, 6:16 PM EDT	Special Weather Statement	PHI	Delaware	29 min
Jun 26, 6:26 PM EDT	Special Weather Statement	PHI	Chester	34 min
Jun 26, 6:37 PM EDT	Flash Flood Warning	PHI	Chester, Delaware	2 hr
Jun 26, 6:50 PM EDT	Special Weather Statement	PHI	Montgomery	25 min
Jun 26, 6:51 PM EDT	Special Weather Statement	PHI	Northampton	24 min
Jun 26, 7:13 PM EDT	Special Weather Statement	PHI	Bucks	32 min
Jun 26, 7:26 PM EDT	Special Weather Statement	PHI	Montgomery	34 min
Jun 26, 7:44 PM EDT	Special Weather Statement	PHI	Delaware, Montgomery	31 min
Jun 26, 7:59 PM EDT	Special Weather Statement	PHI	Lehigh	31 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2023 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.