Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 20, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 27, 2024, 8:46 PM EDT for 4 counties in Pennsylvania. It was in force for 44 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
- May 27, 2024, 8:46 PM EDT (00:46 UTC)
- Expired
- May 27, 2024, 9:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 130 km from the middle of the area, began a volume at 00:49 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 |
|---|---|---|---|
| May 27, 9:11 PM EDT | TSTM WND DMG | Jackson Twp, PA | Report of a tree down in Jackson Twp. |
| May 27, 9:18 PM EDT | TSTM WND DMG | 2 Nw Stormville, PA | A few trees down spread throughout Hamilton Twp. |
| May 27, 9:21 PM EDT | TSTM WND DMG | Stroud Twp, PA | Report of a few trees down in Stroud Twp. |
| May 27, 9:33 PM EDT | TSTM WND DMG | Smithfield Twp, PA | Report of a trees down in Smithfield Twp. |
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 |
|---|---|---|---|
| May 27, 1:42 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.8 hours before the alert went out and 196 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
- 28 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 652 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 216 m²/s²
- 0-3 km storm-relative helicity
- 282 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
243
WUUS51 KPHI 280046
SVRPHI
PAC025-077-089-095-280130-
/O.NEW.KPHI.SV.W.0020.240528T0046Z-240528T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
846 PM EDT Mon May 27 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
North central Lehigh County in eastern Pennsylvania...
Southeastern Carbon County in northeastern Pennsylvania...
Central Monroe County in northeastern Pennsylvania...
Northampton County in eastern Pennsylvania...
* Until 930 PM EDT.
* At 846 PM EDT, a severe thunderstorm was located over Beltzville
State Park, or near Lehighton, 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...
Northampton, East Stroudsburg, Nazareth, Palmerton, Bangor, Jim
Thorpe, Slatington, Pen Argyl, Wind Gap, Bath, Walnutport, Belfast,
East Bangor, Stormville, Neffs, Tannersville, Kresgeville, Sun
Valley, Reeders, and Beltzville State Park.
This includes the following highways...
Northeast Extension between mile markers 64 and 86.
Interstate 80 in Pennsylvania between mile markers 298 and 314.
Interstate 380 in Pennsylvania near mile marker 0.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
In addition to 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 4115 7515 4114 7513 4101 7508 4099 7513
4097 7514 4091 7508 4086 7505 4085 7510
4082 7508 4078 7513 4067 7562 4094 7574
4116 7516
TIME...MOT...LOC 0046Z 258DEG 31KT 4084 7560
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse3 follow-up statements
626
WWUS51 KPHI 280104
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
904 PM EDT Mon May 27 2024
PAC077-280114-
/O.CAN.KPHI.SV.W.0020.000000T0000Z-240528T0130Z/
Lehigh PA-
904 PM EDT Mon May 27 2024
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL LEHIGH COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4114 7513 4101 7508 4100 7512 4097 7514
4086 7505 4085 7510 4082 7508 4078 7513
4071 7552 4073 7553 4074 7554 4099 7559
4116 7516
TIME...MOT...LOC 0104Z 254DEG 28KT 4088 7543
$$
PAC025-089-095-280130-
/O.CON.KPHI.SV.W.0020.000000T0000Z-240528T0130Z/
Carbon PA-Monroe PA-Northampton PA-
904 PM EDT Mon May 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR EAST CENTRAL CARBON...CENTRAL MONROE AND NORTHERN NORTHAMPTON
COUNTIES...
At 904 PM EDT, a severe thunderstorm was located over Rossland, or 15
miles east of Lehighton, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
East Stroudsburg, Nazareth, Bangor, Pen Argyl, Wind Gap, Bath,
Belfast, East Bangor, Stormville, Henryville, Brodheadsville,
Kunkletown, Gilbert, Delaware Water Gap, Tannersville, Alpine
Mountain, Rossland, Kresgeville, Sun Valley, and Jonas.
This includes Interstate 80 in Pennsylvania between mile markers 298
and 314.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
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 4114 7513 4101 7508 4100 7512 4097 7514
4086 7505 4085 7510 4082 7508 4078 7513
4071 7552 4073 7553 4074 7554 4099 7559
4116 7516
TIME...MOT...LOC 0104Z 254DEG 28KT 4088 7543
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse112
WWUS51 KPHI 280116
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
916 PM EDT Mon May 27 2024
PAC025-095-280126-
/O.CAN.KPHI.SV.W.0020.000000T0000Z-240528T0130Z/
Carbon PA-Northampton PA-
916 PM EDT Mon May 27 2024
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CARBON AND
NORTHERN NORTHAMPTON COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has weakened.
Therefore, the warning has been cancelled.
LAT...LON 4114 7513 4101 7508 4100 7512 4097 7514
4090 7543 4103 7547 4116 7516
TIME...MOT...LOC 0116Z 238DEG 36KT 4100 7529
$$
PAC089-280130-
/O.CON.KPHI.SV.W.0020.000000T0000Z-240528T0130Z/
Monroe PA-
916 PM EDT Mon May 27 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR CENTRAL MONROE COUNTY...
At 916 PM EDT, a severe thunderstorm was located over Reeders, or 8
miles southeast of Mount Pocono, moving northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
East Stroudsburg, Stormville, Reeders, Henryville, Brodheadsville,
Analomink, Delaware Water Gap, McMichael, Tannersville, Alpine
Mountain, Scotrun, Stroudsburg, Arlington Heights, Effort, Shawnee,
Marshalls Creek, and Bartonsville.
This includes Interstate 80 in Pennsylvania between mile markers 298
and 314.
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 4114 7513 4101 7508 4100 7512 4097 7514
4090 7543 4103 7547 4116 7516
TIME...MOT...LOC 0116Z 238DEG 36KT 4100 7529
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse729
WWUS51 KPHI 280127
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
927 PM EDT Mon May 27 2024
PAC089-280137-
/O.EXP.KPHI.SV.W.0020.000000T0000Z-240528T0130Z/
Monroe PA-
927 PM EDT Mon May 27 2024
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONROE COUNTY WILL
EXPIRE AT 930 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 4114 7513 4101 7508 4100 7512 4097 7514
4090 7543 4103 7547 4116 7516
TIME...MOT...LOC 0127Z 258DEG 31KT 4102 7519
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 8:04 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 41 min |
| May 27, 8:28 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh, Northampton | 47 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.