Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 269, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 26, 2021, 6:09 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 51 min. 2 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
- Aug 26, 2021, 6:09 PM EDT (22:09 UTC)
- Expired
- Aug 26, 2021, 7:00 PM EDT
- In force
- 51 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Carbon County, PA, Monroe County, PA
The radar
The Binghamton radar (KBGM), 139 km from the middle of the area, began a volume at 22:09 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 |
|---|---|---|---|
| Aug 26, 6:25 PM EDT | TSTM WND DMG | 2 Sw Penn Forest Reserv, PA | DOWNED TREES AND WIRES NEAR LAKE DRIVE. TIME ESTIMATED FROM RADAR. |
| Aug 26, 6:35 PM EDT | TSTM WND DMG | 2 Nw Beltzville State P, PA | A COUPLE OF TREES DOWN IN FRANKLIN TOWNSHIP. TIME ESTIMATED FROM RADAR. |
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, 10.2 hours before the alert went out and 238 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
- 844 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1230 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
388
WUUS51 KPHI 262209
SVRPHI
PAC025-089-262300-
/O.NEW.KPHI.SV.W.0269.210826T2209Z-210826T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
609 PM EDT Thu Aug 26 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Carbon County in northeastern Pennsylvania...
Southwestern Monroe County in northeastern Pennsylvania...
* Until 700 PM EDT.
* At 609 PM EDT, a severe thunderstorm was located over Christmans,
or 11 miles northeast of Lehighton, moving east at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Jim Thorpe, Nesquehoning, Weatherly, Brodheadsville, Beltzville
State Park, Gilbert, Pocono Raceway, Lake Harmony, Rossland, Penn
Forest Reservoir, Long Pond, Albrightsville, Kresgeville,
Christmans, Sun Valley, Jonas, Meckesville, Beaver Meadows, Effort
and Trachsville.
This includes the following highways...
Northeast Extension between mile markers 78 and 93.
Interstate 80 in Pennsylvania between mile markers 277 and 280, and
between mile markers 287 and 293.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4086 7533 4085 7591 4095 7591 4098 7582
4098 7580 4101 7573 4103 7574 4104 7576
4106 7577 4109 7548
TIME...MOT...LOC 2209Z 267DEG 13KT 4097 7562
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse3 follow-up statements
262
WWUS51 KPHI 262223
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
623 PM EDT Thu Aug 26 2021
PAC025-089-262300-
/O.CON.KPHI.SV.W.0269.000000T0000Z-210826T2300Z/
Carbon PA-Monroe PA-
623 PM EDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CARBON AND SOUTHWESTERN MONROE COUNTIES...
At 622 PM EDT, a severe thunderstorm was located over Meckesville,
or 13 miles southwest of Mount Pocono, moving east at 15 mph.
Additional thunderstorms were covering much of central Carbon County.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Jim Thorpe, Nesquehoning, Weatherly, Brodheadsville, Beltzville State
Park, Gilbert, Pocono Raceway, Lake Harmony, Rossland, Penn Forest
Reservoir, Long Pond, Albrightsville, Kresgeville, Christmans, Sun
Valley, Jonas, Meckesville, Beaver Meadows, Effort and Trachsville.
This includes the following highways...
Northeast Extension between mile markers 78 and 93.
Interstate 80 in Pennsylvania between mile markers 277 and 280, and
between mile markers 287 and 293.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4086 7533 4085 7591 4095 7591 4098 7582
4098 7580 4101 7573 4103 7574 4104 7576
4106 7577 4109 7548
TIME...MOT...LOC 2222Z 250DEG 14KT 4100 7556
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse389
WWUS51 KPHI 262238
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
638 PM EDT Thu Aug 26 2021
PAC025-089-262300-
/O.CON.KPHI.SV.W.0269.000000T0000Z-210826T2300Z/
Carbon PA-Monroe PA-
638 PM EDT Thu Aug 26 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR CENTRAL CARBON AND SOUTHWESTERN MONROE COUNTIES...
At 637 PM EDT, a severe thunderstorm was located near Lehighton,
moving east at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Jim Thorpe, Nesquehoning, Weatherly, Penn Forest Reservoir,
Albrightsville, Beltzville State Park, Lake Harmony, Christmans,
Meckesville and Trachsville.
This includes Northeast Extension between mile markers 78 and 92.
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 4085 7591 4091 7591 4101 7573 4103 7574
4107 7557 4086 7550
TIME...MOT...LOC 2237Z 277DEG 11KT 4086 7567
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse067
WWUS51 KPHI 262251
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
651 PM EDT Thu Aug 26 2021
PAC025-089-262301-
/O.EXP.KPHI.SV.W.0269.000000T0000Z-210826T2300Z/
Carbon PA-Monroe PA-
651 PM EDT Thu Aug 26 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CARBON AND
SOUTHWESTERN MONROE COUNTIES WILL EXPIRE AT 700 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 4085 7591 4091 7591 4101 7573 4103 7574
4107 7557 4086 7550
TIME...MOT...LOC 2251Z 267DEG 13KT 4086 7561
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 1:20 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 40 min |
| Aug 26, 3:30 PM EDT | Flash Flood Watch | PHI | Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 2 more | 48 hr |
| Aug 26, 5:02 PM EDT | Special Weather Statement | PHI | Monroe | 28 min |
| Aug 26, 5:29 PM EDT | Special Weather Statement | PHI | Monroe | 31 min |
| Aug 26, 5:35 PM EDT | Special Weather Statement | PHI | Carbon | 25 min |
| Aug 26, 5:59 PM EDT | Special Weather Statement | PHI | Carbon | 31 min |
| Aug 26, 6:24 PM EDT | Areal Flood Advisory | PHI | Carbon | 3 hr |
| Aug 26, 6:56 PM EDT | Special Weather Statement | PHI | Philadelphia | 34 min |
| Aug 26, 7:29 PM EDT | Areal Flood Advisory | PHI | Carbon | 2 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2021Every severe thunderstorm warning in 2021
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.