Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 90, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2023, 8:41 AM EDT for 4 counties in Pennsylvania. It was in force for 49 min. 8 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 26, 2023, 8:41 AM EDT (12:41 UTC)
- Expired
- Jun 26, 2023, 9:30 AM EDT
- In force
- 49 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), 127 km from the middle of the area, began a volume at 12:42 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 26, 8:45 AM EDT | TSTM WND DMG | 3 Ne Upper Macungie Twp, PA | Tree down in South Whitehall Township. |
| Jun 26, 8:45 AM EDT | TSTM WND DMG | 3 Ne Upper Macungie Twp, PA | Tree down in South Whitehall Township. |
| Jun 26, 9:08 AM EDT | TSTM WND DMG | Towamensing Twp, PA | Corrects previous tstm wnd dmg report from Towamensing Twp to correct the time of occurrence. Tree down in Towamensing Township. |
| Jun 26, 9:08 AM EDT | TSTM WND DMG | Towamensing Twp, PA | Corrects previous tstm wnd dmg report from Towamensing Twp to correct the time of occurrence. Tree down in Towamensing Township. |
| Jun 26, 9:13 AM EDT | TSTM WND DMG | Kunkletown, PA | Pole on wires and large branches down in Kunkletown/Eldred Township. |
| Jun 26, 9:13 AM EDT | TSTM WND DMG | Kunkletown, PA | Pole on wires and large branches down in Kunkletown/Eldred Township. |
| Jun 26, 9:15 AM EDT | HAIL 0.5 | 2 N Kunkletown, PA | Report from mPING: Half-inch (0.50 in.). |
| Jun 26, 9:15 AM EDT | HAIL 0.5 | 2 N Kunkletown, PA | Report from mPING: Half-inch (0.50 in.). |
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, 0.7 hours before the alert went out and 216 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
- 369 J/kg
- Mixed-layer CIN
- -76 J/kg
- Mixed-layer LCL
- 807 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
995
WUUS51 KPHI 261241
SVRPHI
PAC025-077-089-095-261330-
/O.NEW.KPHI.SV.W.0090.230626T1241Z-230626T1330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
841 AM EDT Mon Jun 26 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Lehigh County in eastern Pennsylvania...
Southeastern Carbon County in northeastern Pennsylvania...
Southwestern Monroe County in northeastern Pennsylvania...
Central Northampton County in eastern Pennsylvania...
* Until 930 AM EDT.
* At 840 AM EDT, a severe thunderstorm was located over Claussville,
or 8 miles west of Allentown, moving northeast 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...
Allentown, Bethlehem, Northampton, Nazareth, Palmerton, Bangor,
Slatington, Pen Argyl, Wind Gap, Bath, Walnutport, Belfast, East
Bangor, Steuben, Neffs, Coffeetown, Ancient Oaks, Kresgeville, Sun
Valley and Beltzville State Park.
This includes the following highways...
Northeast Extension between mile markers 54 and 71.
Interstate 78 in Pennsylvania between mile markers 45 and 57.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4088 7515 4049 7559 4059 7576 4106 7551
TIME...MOT...LOC 1240Z 214DEG 28KT 4063 7563
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL3 follow-up statements
389
WWUS51 KPHI 261307
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
907 AM EDT Mon Jun 26 2023
PAC025-077-089-095-261330-
/O.CON.KPHI.SV.W.0090.000000T0000Z-230626T1330Z/
Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
907 AM EDT Mon Jun 26 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 AM EDT
FOR CENTRAL LEHIGH...SOUTHEASTERN CARBON...SOUTHWESTERN MONROE AND
CENTRAL NORTHAMPTON COUNTIES...
At 906 AM EDT, a severe thunderstorm was located over Danielsville,
or 12 miles east of Lehighton, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Allentown, Bethlehem, Northampton, Nazareth, Palmerton, Bangor,
Slatington, Pen Argyl, Wind Gap, Bath, Walnutport, Belfast, East
Bangor, Steuben, Brodheadsville, Kunkletown, Neffs, Gilbert, Pocono
Raceway and Coffeetown.
This includes the following highways...
Northeast Extension between mile markers 54 and 71.
Interstate 78 in Pennsylvania between mile markers 52 and 57.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4052 7555 4067 7572 4106 7551 4088 7515
TIME...MOT...LOC 1306Z 214DEG 28KT 4080 7548
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL699
WWUS51 KPHI 261320
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
920 AM EDT Mon Jun 26 2023
PAC077-261329-
/O.CAN.KPHI.SV.W.0090.000000T0000Z-230626T1330Z/
Lehigh PA-
920 AM EDT Mon Jun 26 2023
...THE SEVERE THUNDERSTORM WARNING FOR 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 4088 7515 4065 7541 4067 7544 4066 7548
4071 7552 4074 7553 4072 7556 4074 7559
4079 7561 4078 7566 4106 7551
TIME...MOT...LOC 1319Z 214DEG 28KT 4089 7540
$$
PAC025-089-095-261330-
/O.CON.KPHI.SV.W.0090.000000T0000Z-230626T1330Z/
Carbon PA-Monroe PA-Northampton PA-
920 AM EDT Mon Jun 26 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 AM EDT
FOR SOUTHEASTERN CARBON...SOUTHWESTERN MONROE AND CENTRAL NORTHAMPTON
COUNTIES...
At 919 AM EDT, a severe thunderstorm was located over Rossland, or 16
miles south of Mount Pocono, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Northampton, Nazareth, Palmerton, Bangor, Pen Argyl, Wind Gap, Bath,
Walnutport, Belfast, East Bangor, Steuben, Brodheadsville,
Kunkletown, Gilbert, Pocono Raceway, Rossland, Berlinsville,
Kresgeville, Sun Valley and Jonas.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4088 7515 4065 7541 4067 7544 4066 7548
4071 7552 4074 7553 4072 7556 4074 7559
4079 7561 4078 7566 4106 7551
TIME...MOT...LOC 1319Z 214DEG 28KT 4089 7540
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL407
WWUS51 KPHI 261330
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
930 AM EDT Mon Jun 26 2023
PAC025-089-095-261337-
/O.EXP.KPHI.SV.W.0090.000000T0000Z-230626T1330Z/
Carbon PA-Monroe PA-Northampton PA-
930 AM EDT Mon Jun 26 2023
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CARBON...
SOUTHWESTERN MONROE AND CENTRAL NORTHAMPTON COUNTIES WILL EXPIRE AT
930 AM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
Remember, a Severe Thunderstorm Warning still remains in effect for
southern Monroe and northern Northampton counties until 1000 AM EDT.
LAT...LON 4088 7515 4065 7541 4067 7544 4066 7548
4071 7552 4074 7553 4072 7556 4074 7559
4079 7561 4078 7566 4106 7551
TIME...MOT...LOC 1327Z 214DEG 28KT 4093 7536
$$
MJLThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 3:33 AM EDT | Flood Watch | PHI | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 23 hr |
| Jun 26, 9:18 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 42 min |
| Jun 26, 9:47 AM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 43 min |
| Jun 26, 1:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 47 min |
| Jun 26, 1:35 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 40 min |
| Jun 26, 2:04 PM EDT | Severe Thunderstorm Warning | PHI | Berks | 41 min |
| Jun 26, 2:06 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 39 min |
| Jun 26, 2:12 PM EDT | Tornado Warning | PHI | Berks, Lehigh | 21 min |
| Jun 26, 2:21 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 54 min |
| Jun 26, 2:23 PM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh | 107 min |
| Jun 26, 2:31 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 44 min |
| Jun 26, 2:32 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh | 67 min |
| Jun 26, 2:40 PM EDT | Special Weather Statement | PHI | Bucks | 35 min |
| Jun 26, 2:58 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 47 min |
| Jun 26, 3:02 PM EDT | Tornado Warning | PHI | Northampton | 28 min |
| Jun 26, 3:03 PM EDT | Areal Flood Advisory | PHI | Monroe | 104 min |
| Jun 26, 3:25 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 41 min |
| Jun 26, 3:56 PM EDT | Areal Flood Advisory | PHI | Monroe, Northampton | 2 hr |
| Jun 26, 4:04 PM EDT | Special Weather Statement | PHI | Northampton | 41 min |
| Jun 26, 4:50 PM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 73 min |
| Jun 26, 5:47 PM EDT | Special Weather Statement | PHI | Lebanon | 28 min |
| Jun 26, 5:59 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 24 min |
| Jun 26, 6:00 PM EDT | Areal Flood Advisory | PHI | Monroe, Northampton | 4 hr |
| Jun 26, 6:03 PM EDT | Flash Flood Warning | PHI | Lehigh, Northampton | 6 hr |
| Jun 26, 6:16 PM EDT | Special Weather Statement | PHI | Delaware | 29 min |
| Jun 26, 6:26 PM EDT | Special Weather Statement | PHI | Chester | 34 min |
| Jun 26, 6:37 PM EDT | Flash Flood Warning | PHI | Chester, Delaware | 2 hr |
| Jun 26, 6:50 PM EDT | Special Weather Statement | PHI | Montgomery | 25 min |
| Jun 26, 6:51 PM EDT | Special Weather Statement | PHI | Northampton | 24 min |
| Jun 26, 7:13 PM EDT | Special Weather Statement | PHI | Bucks | 32 min |
| Jun 26, 7:26 PM EDT | Special Weather Statement | PHI | Montgomery | 34 min |
| Jun 26, 7:44 PM EDT | Special Weather Statement | PHI | Delaware, Montgomery | 31 min |
| Jun 26, 7:59 PM EDT | Special Weather Statement | PHI | Lehigh | 31 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2023Every 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.