Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 77, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 30, 2024, 2:45 PM EDT for 4 counties in Pennsylvania. It was in force for 45 min. 4 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 30, 2024, 2:45 PM EDT (18:45 UTC)
- Expired
- Jun 30, 2024, 3:30 PM EDT
- In force
- 45 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 146 km from the middle of the area, began a volume at 18:48 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 30, 2:50 PM EDT | TSTM WND DMG | Jim Thorpe, PA | Corrects previous tstm wnd dmg report from Jim Thorpe. A few trees down in Jim Thorpe. Time estimated from radar. |
| Jun 30, 2:52 PM EDT | TSTM WND DMG | 1 Ne East Penn Twp, PA | Tree down in East Penn Township. Time estimated from radar. |
| Jun 30, 3:06 PM EDT | TSTM WND DMG | 1 Wnw Palmerton, PA | Tree in the roadway of the 300 block of Golf Road. Time estimated from radar. |
| Jun 30, 3:30 PM EDT | TSTM WND DMG | Nazareth, PA | Large branches snapped and winds estimated around 60 mph. |
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 30, 11:09 AM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.8 hours before the alert went out and 239 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
- 856 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1165 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 79 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted.
746
WUUS51 KPHI 301845
SVRPHI
PAC025-077-089-095-301930-
/O.NEW.KPHI.SV.W.0077.240630T1845Z-240630T1930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
245 PM EDT Sun Jun 30 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northern Lehigh County in eastern Pennsylvania...
Southern Carbon County in northeastern Pennsylvania...
Southwestern Monroe County in northeastern Pennsylvania...
Western Northampton County in eastern Pennsylvania...
* Until 330 PM EDT.
* At 245 PM EDT, a severe thunderstorm was located over New Mahoning,
or near Lehighton, moving east at 30 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, Bethlehem, Northampton, Nazareth, Palmerton, Jim Thorpe,
Slatington, Pen Argyl, Nesquehoning, Wind Gap, Bath, Walnutport,
Belfast, Steuben, New Mahoning, Kunkletown, Neffs, Rossland,
Berlinsville, and Emerald.
This includes Northeast Extension between mile markers 64 and 81.
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 4092 7589 4089 7525 4063 7530 4072 7580
4074 7576 4081 7587 4084 7591
TIME...MOT...LOC 1845Z 278DEG 26KT 4083 7582
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich3 follow-up statements
750
WWUS51 KPHI 301908
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
308 PM EDT Sun Jun 30 2024
PAC077-301918-
/O.CAN.KPHI.SV.W.0077.000000T0000Z-240630T1930Z/
Lehigh PA-
308 PM EDT Sun Jun 30 2024
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LEHIGH COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
eastern and northeastern Pennsylvania.
LAT...LON 4089 7525 4067 7529 4070 7552 4071 7552
4074 7553 4072 7556 4074 7559 4079 7561
4091 7560
TIME...MOT...LOC 1908Z 274DEG 34KT 4081 7552
$$
PAC025-089-095-301930-
/O.CON.KPHI.SV.W.0077.000000T0000Z-240630T1930Z/
Carbon PA-Monroe PA-Northampton PA-
308 PM EDT Sun Jun 30 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTHEASTERN CARBON...SOUTHWESTERN MONROE AND NORTHWESTERN
NORTHAMPTON COUNTIES...
At 308 PM EDT, a severe thunderstorm was located over Danielsville,
or 10 miles east of Lehighton, moving east at 40 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...
Northampton, Nazareth, Palmerton, Pen Argyl, Wind Gap, Bath,
Walnutport, Belfast, Steuben, Danielsville, Kunkletown, Rossland,
Berlinsville, Beersville, Kresgeville, Stockertown, Chapman,
Trachsville, Fiddletown, and Eastlawn Gardens.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4089 7525 4067 7529 4070 7552 4071 7552
4074 7553 4072 7556 4074 7559 4079 7561
4091 7560
TIME...MOT...LOC 1908Z 274DEG 34KT 4081 7552
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich510
WWUS51 KPHI 301918
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
318 PM EDT Sun Jun 30 2024
PAC025-301928-
/O.CAN.KPHI.SV.W.0077.000000T0000Z-240630T1930Z/
Carbon PA-
318 PM EDT Sun Jun 30 2024
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARBON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
eastern and northeastern Pennsylvania.
LAT...LON 4071 7548 4088 7546 4088 7525 4067 7529
4068 7537
TIME...MOT...LOC 1918Z 279DEG 30KT 4079 7538
$$
PAC089-095-301930-
/O.CON.KPHI.SV.W.0077.000000T0000Z-240630T1930Z/
Monroe PA-Northampton PA-
318 PM EDT Sun Jun 30 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR SOUTH CENTRAL MONROE AND CENTRAL NORTHAMPTON COUNTIES...
At 318 PM EDT, a severe thunderstorm was located near Bath, or 11
miles northwest of Easton, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Nazareth, Pen Argyl, Wind Gap, Bath, Belfast, Steuben, Kunkletown,
Rossland, Beersville, Stockertown, Chapman, Fiddletown, and Eastlawn
Gardens.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4071 7548 4088 7546 4088 7525 4067 7529
4068 7537
TIME...MOT...LOC 1918Z 279DEG 30KT 4079 7538
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hoeflich526
WWUS51 KPHI 301927
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
327 PM EDT Sun Jun 30 2024
PAC089-095-301936-
/O.EXP.KPHI.SV.W.0077.000000T0000Z-240630T1930Z/
Monroe PA-Northampton PA-
327 PM EDT Sun Jun 30 2024
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL MONROE AND
CENTRAL NORTHAMPTON COUNTIES WILL EXPIRE AT 330 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
eastern and northeastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
A new Severe Thunderstorm Warning was issued for northeastern
Northampton County. Please refer to that bulletin for the updated
infromation.
LAT...LON 4071 7548 4088 7546 4088 7525 4067 7529
4068 7537
TIME...MOT...LOC 1926Z 278DEG 26KT 4078 7532
$$
HoeflichThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:22 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 53 min |
| Jun 29, 10:23 PM EDT | Flash Flood Warning | PHI | Chester | 4 hr |
| Jun 30, 1:18 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 42 min |
| Jun 30, 1:57 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 48 min |
| Jun 30, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 50 min |
| Jun 30, 2:42 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 63 min |
| Jun 30, 3:01 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 59 min |
| Jun 30, 3:26 PM EDT | Severe Thunderstorm Warning | PHI | Northampton | 49 min |
| Jun 30, 3:46 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery | 44 min |
| Jun 30, 3:52 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery | 38 min |
| Jun 30, 4:25 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 50 min |
| Jun 30, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 53 min |
| Jun 30, 4:54 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Montgomery | 51 min |
| Jun 30, 5:19 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 3 hr |
| Jun 30, 5:20 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 40 min |
| Jun 30, 5:51 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 39 min |
| Jun 30, 5:54 PM EDT | Flash Flood Warning | PHI | Delaware, Philadelphia | 3 hr |
| Jun 30, 7:31 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 44 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2024Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.