Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 288, NWS Philadelphia/Mount Holly

August 12, 2023Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 12, 2023, 4:57 PM EDT for Carbon County, Pennsylvania. It was in force for 48 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: Aug 12, 2023, 4:57 PM EDT (20:57 UTC)
Expired: Aug 12, 2023, 5:45 PM EDT
In force: 48 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Carbon County, PA

The radar

The Philadelphia radar (KDIX), 151 km from the middle of the area, began a volume at 20:58 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
Aug 12, 5:15 PM EDT	TSTM WND DMG	Hudsondale, PA	Corrected location from the previous Summit Hill report. Numerous trees and power lines down near the intersection of PA-93 and Wetzel Run Drive in Weatherly. Pictures provided via social media. Time estimated from radar.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.0 hours before the alert went out and 241 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1539 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

088 
WUUS51 KPHI 122057
SVRPHI
PAC025-122145-
/O.NEW.KPHI.SV.W.0288.230812T2057Z-230812T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
457 PM EDT Sat Aug 12 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southern Carbon County in northeastern Pennsylvania...

* Until 545 PM EDT.

* At 457 PM EDT, a severe thunderstorm was located over West
  Hazleton, or over Hazleton, moving southeast 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...
  Lehighton, Palmerton, Jim Thorpe, Nesquehoning, Weatherly, New
  Mahoning, Beltzville State Park, Lansford, Summit Hill,
  Bowmanstown, Beaver Meadows, Parryville, Weissport, Weissport East
  and Tresckow.

This includes Northeast Extension between mile markers 72 and 81.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4098 7582 4085 7550 4081 7554 4078 7562
      4078 7567 4073 7576 4083 7590 4091 7599
TIME...MOT...LOC 2057Z 303DEG 22KT 4095 7601 

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

$$

Hoeflich

1 follow-up statement

148 
WWUS51 KPHI 122136
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
536 PM EDT Sat Aug 12 2023

PAC025-122146-
/O.EXP.KPHI.SV.W.0288.000000T0000Z-230812T2145Z/
Carbon PA-
536 PM EDT Sat Aug 12 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CARBON COUNTY WILL
EXPIRE AT 545 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.

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 4098 7582 4085 7550 4081 7554 4078 7562
      4078 7567 4073 7576 4083 7590 4091 7599
TIME...MOT...LOC 2136Z 303DEG 22KT 4082 7576 

$$

Hoeflich

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 12, 12:57 PM EDT	Areal Flood Advisory	PHI	Delaware, Philadelphia	3 hr
Aug 12, 1:38 PM EDT	Areal Flood Advisory	PHI	Delaware, Philadelphia	3 hr
Aug 12, 3:06 PM EDT	Special Weather Statement	PHI	Berks	24 min
Aug 12, 3:39 PM EDT	Special Weather Statement	PHI	Berks	36 min
Aug 12, 3:49 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	41 min
Aug 12, 3:55 PM EDT	Special Weather Statement	PHI	Chester	35 min
Aug 12, 4:06 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	39 min
Aug 12, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	38 min
Aug 12, 5:05 PM EDT	Areal Flood Advisory	PHI	Chester	3 hr
Aug 12, 5:16 PM EDT	Special Weather Statement	PHI	Delaware	29 min
Aug 12, 5:31 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	44 min
Aug 12, 6:42 PM EDT	Special Weather Statement	PHI	Montgomery	33 min
Aug 12, 6:47 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery	28 min
Aug 12, 6:58 PM EDT	Areal Flood Advisory	PHI	Chester	3 hr

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.