Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 7, NWS Philadelphia/Mount Holly

April 30, 2024Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 30, 2024, 5:32 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 30 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: Apr 30, 2024, 5:32 PM EDT (21:32 UTC)
Expired: Apr 30, 2024, 6:02 PM EDT
In force: 30 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Carbon County, PA, Monroe County, PA

The radar

The Philadelphia radar (KDIX), 148 km from the middle of the area, began a volume at 21:34 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 nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.5 hours before the alert went out and 237 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: 609 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

401 
WUUS51 KPHI 302132
SVRPHI
PAC025-089-302215-
/O.NEW.KPHI.SV.W.0007.240430T2132Z-240430T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
532 PM EDT Tue Apr 30 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southeastern Carbon County in northeastern Pennsylvania...
  Southwestern Monroe County in northeastern Pennsylvania...

* Until 615 PM EDT.

* At 532 PM EDT, a severe thunderstorm was located over Jim Thorpe,
  or over Lehighton, moving east at 15 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, Penn Forest Reservoir, Beltzville
  State Park, Christmans, Meckesville, Bowmanstown, Parryville,
  Weissport, Trachsville, and Weissport East.

This includes Northeast Extension between mile markers 74 and 87.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

&&

LAT...LON 4079 7578 4088 7583 4102 7556 4082 7546
TIME...MOT...LOC 2132Z 248DEG 13KT 4086 7572 

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

$$

Staarmann

2 follow-up statements

870 
WWUS51 KPHI 302149
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
549 PM EDT Tue Apr 30 2024

PAC025-089-302215-
/O.CON.KPHI.SV.W.0007.000000T0000Z-240430T2215Z/
Carbon PA-Monroe PA-
549 PM EDT Tue Apr 30 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT
FOR SOUTHEASTERN CARBON AND SOUTHWESTERN MONROE COUNTIES...

At 549 PM EDT, a severe thunderstorm was located over Beltzville
State Park, or near Lehighton, moving east at 15 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...
Palmerton, Jim Thorpe, Penn Forest Reservoir, Beltzville State Park,
Meckesville, Bowmanstown, Parryville, Trachsville, and Weissport
East.

This includes Northeast Extension between mile markers 74 and 85.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 4080 7567 4091 7572 4101 7555 4082 7546
TIME...MOT...LOC 2149Z 248DEG 14KT 4089 7561 

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

$$

Staarmann

834 
WWUS51 KPHI 302202
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
602 PM EDT Tue Apr 30 2024

PAC025-089-302212-
/O.CAN.KPHI.SV.W.0007.000000T0000Z-240430T2215Z/
Carbon PA-Monroe PA-
602 PM EDT Tue Apr 30 2024

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARBON AND
SOUTHWESTERN MONROE COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

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 4080 7567 4091 7572 4101 7555 4082 7546
TIME...MOT...LOC 2201Z 248DEG 13KT 4091 7555 

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 5:00 PM EDT	Special Weather Statement	PHI	Carbon	30 min
Apr 30, 6:30 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	45 min
Apr 30, 6:52 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	53 min
Apr 30, 7:38 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Carbon, Lehigh, Monroe, Northampton	52 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2024 Every severe thunderstorm warning in 2024

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.