Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 37, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 6, 2025, 2:46 PM EDT for Berks County, Carbon County, Lehigh County, Pennsylvania. It was in force for 59 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
- May 6, 2025, 2:46 PM EDT (18:46 UTC)
- Expired
- May 6, 2025, 3:45 PM EDT
- In force
- 59 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Berks County, PA, Carbon County, PA, Lehigh County, PA
The radar
The Binghamton radar (KBGM), 147 km from the middle of the area, began a volume at 18:45 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 6, 2:51 PM EDT | TSTM WND DMG | 1 Nw New Mahoning, PA | Trees down on power lines along Mill Road in Mahoning Twp. Time estimated from radar. |
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 6, 1:06 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.8 hours before the alert went out and 245 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
074
WUUS51 KPHI 061846
SVRPHI
PAC011-025-077-061945-
/O.NEW.KPHI.SV.W.0037.250506T1846Z-250506T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
246 PM EDT Tue May 6 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
North central Berks County in eastern Pennsylvania...
Northwestern Lehigh County in eastern Pennsylvania...
Carbon County in northeastern Pennsylvania...
* Until 345 PM EDT.
* At 246 PM EDT, severe thunderstorms were located along a line
extending from near New Mahoning to near Lenhartsville, moving
north at 35 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, New Mahoning, Beaver Meadows, Lenhartsville, Wanamakers,
Jim Thorpe, Lake Harmony, New Tripoli, Summit Hill, Bowmanstown,
Weissport, Weatherly, Parryville, Jordan Valley, Nesquehoning,
Weissport East, Albrightsville, Tresckow, Christmans, and Lansford.
This includes the following highways...
Northeast Extension between mile markers 71 and 97.
Interstate 78 in Pennsylvania between mile markers 35 and 44.
Interstate 80 in Pennsylvania between mile markers 277 and 287.
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 these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4109 7560 4103 7554 4053 7576 4057 7593
4065 7597 4070 7583 4074 7576 4083 7590
4091 7599 4101 7573 4105 7577 4108 7577
4113 7567
TIME...MOT...LOC 1846Z 194DEG 30KT 4078 7587 4059 7580
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann4 follow-up statements
445
WWUS51 KPHI 061858
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
258 PM EDT Tue May 6 2025
PAC011-061907-
/O.CAN.KPHI.SV.W.0037.000000T0000Z-250506T1945Z/
Berks PA-
258 PM EDT Tue May 6 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BERKS COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
eastern and northeastern Pennsylvania.
LAT...LON 4109 7560 4103 7554 4064 7571 4063 7581
4068 7589 4070 7583 4074 7576 4083 7590
4091 7599 4101 7573 4103 7574 4105 7577
4108 7577 4113 7567
TIME...MOT...LOC 1857Z 195DEG 32KT 4090 7578 4069 7576
$$
PAC025-077-061945-
/O.CON.KPHI.SV.W.0037.000000T0000Z-250506T1945Z/
Lehigh PA-Carbon PA-
258 PM EDT Tue May 6 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHWESTERN LEHIGH AND CARBON COUNTIES...
At 257 PM EDT, severe thunderstorms were located along a line
extending from near Jim Thorpe to New Tripoli, moving north at 35
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, New Mahoning, Beaver Meadows, Wanamakers, Jim Thorpe, Lake
Harmony, New Tripoli, Summit Hill, Bowmanstown, Weissport, Weatherly,
Parryville, Jordan Valley, Nesquehoning, Weissport East,
Albrightsville, Tresckow, Christmans, Lansford, and Meckesville.
This includes the following highways...
Northeast Extension between mile markers 71 and 97.
Interstate 80 in Pennsylvania between mile markers 277 and 287.
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 these storms.
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.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4109 7560 4103 7554 4064 7571 4063 7581
4068 7589 4070 7583 4074 7576 4083 7590
4091 7599 4101 7573 4103 7574 4105 7577
4108 7577 4113 7567
TIME...MOT...LOC 1857Z 195DEG 32KT 4090 7578 4069 7576
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann120
WWUS51 KPHI 061916
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
316 PM EDT Tue May 6 2025
PAC077-061925-
/O.CAN.KPHI.SV.W.0037.000000T0000Z-250506T1945Z/
Lehigh PA-
316 PM EDT Tue May 6 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN LEHIGH COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
northeastern Pennsylvania.
LAT...LON 4109 7560 4103 7554 4080 7565 4082 7572
4089 7581 4096 7585 4101 7573 4103 7574
4105 7577 4108 7577 4113 7567
TIME...MOT...LOC 1915Z 195DEG 29KT 4093 7570
$$
PAC025-061945-
/O.CON.KPHI.SV.W.0037.000000T0000Z-250506T1945Z/
Carbon PA-
316 PM EDT Tue May 6 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL CARBON COUNTY...
At 315 PM EDT, a severe thunderstorm was located near Christmans, or
near Lehighton, moving north 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...
Lehighton, Weissport, Weatherly, Parryville, Weissport East,
Albrightsville, Jim Thorpe, Lake Harmony, Christmans, and
Bowmanstown.
This includes the following highways...
Northeast Extension between mile markers 74 and 97.
Interstate 80 in Pennsylvania between mile markers 277 and 287.
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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4109 7560 4103 7554 4080 7565 4082 7572
4089 7581 4096 7585 4101 7573 4103 7574
4105 7577 4108 7577 4113 7567
TIME...MOT...LOC 1915Z 195DEG 29KT 4093 7570
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann958
WWUS51 KPHI 061926
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
326 PM EDT Tue May 6 2025
PAC025-061945-
/O.CON.KPHI.SV.W.0037.000000T0000Z-250506T1945Z/
Carbon PA-
326 PM EDT Tue May 6 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHEASTERN CARBON COUNTY...
At 325 PM EDT, a severe thunderstorm was located over Albrightsville,
or 14 miles north of Lehighton, moving north at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Lake Harmony, Christmans, and Albrightsville.
This includes the following highways...
Northeast Extension between mile markers 85 and 97.
Interstate 80 in Pennsylvania between mile markers 277 and 287.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4109 7560 4103 7554 4092 7559 4096 7568
4101 7573 4103 7574 4105 7577 4108 7577
4113 7567
TIME...MOT...LOC 1925Z 197DEG 31KT 4102 7562
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann313
WWUS51 KPHI 061935
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
335 PM EDT Tue May 6 2025
PAC025-061945-
/O.EXP.KPHI.SV.W.0037.000000T0000Z-250506T1945Z/
Carbon PA-
335 PM EDT Tue May 6 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CARBON COUNTY
WILL EXPIRE AT 345 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
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.
LAT...LON 4109 7560 4103 7554 4092 7559 4096 7568
4101 7573 4103 7574 4105 7577 4108 7577
4113 7567
TIME...MOT...LOC 1935Z 194DEG 30KT 4110 7559
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 1:08 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 37 min |
| May 6, 1:31 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 44 min |
| May 6, 2:12 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 48 min |
| May 6, 3:41 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 49 min |
| May 6, 3:57 PM EDT | Tornado Warning | PHI | Monroe, Northampton | 33 min |
| May 6, 4:18 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 57 min |
| May 6, 4:19 PM EDT | Tornado Warning | PHI | Monroe | 26 min |
| May 6, 4:31 PM EDT | Tornado Warning | PHI | Monroe | 44 min |
| May 6, 4:44 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 46 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2025Every severe thunderstorm warning in 2025
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.