Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 299, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 13, 2021, 8:16 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 44 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
- Sep 13, 2021, 8:16 PM EDT (00:16 UTC)
- Expired
- Sep 13, 2021, 9:00 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Carbon County, PA, Monroe County, PA
The radar
The Binghamton radar (KBGM), 143 km from the middle of the area, began a volume at 00:19 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 |
|---|---|---|---|
| Sep 13, 8:32 PM EDT | TSTM WND DMG | Beaver Meadows, PA | TREE ON WIRES IN BEAVER MEADOWS. TIME ESTIMATED FROM RADAR. |
| Sep 13, 8:40 PM EDT | TSTM WND DMG | Summit Hill, PA | TREES DOWN. |
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 |
|---|---|---|---|
| Sep 13, 7:44 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 0.3 hours before the alert went out and 225 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
- 90 J/kg
- Mixed-layer CIN
- -236 J/kg
- Mixed-layer LCL
- 1411 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
045
WUUS51 KPHI 140016
SVRPHI
PAC025-089-140100-
/O.NEW.KPHI.SV.W.0299.210914T0016Z-210914T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
816 PM EDT Mon Sep 13 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 900 PM EDT.
* At 815 PM EDT, a severe thunderstorm was located near Nuremburg, or
7 miles west of Hazleton, moving southeast 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...
Lehighton, Palmerton, Jim Thorpe, Nesquehoning, Weatherly,
Stormville, Brodheadsville, New Mahoning, Kunkletown, Gilbert,
Pocono Raceway, Lake Harmony, Rossland, Long Pond, Albrightsville,
Kresgeville, Sun Valley, Arrowhead Lake, Jonas and Meckesville.
This includes the following highways...
Northeast Extension between mile markers 72 and 97.
Interstate 80 in Pennsylvania between mile markers 277 and 296.
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 4094 7519 4093 7522 4090 7523 4087 7528
4082 7544 4078 7567 4073 7576 4091 7599
4101 7573 4105 7577 4108 7577 4113 7569
4112 7564 4117 7559
TIME...MOT...LOC 0015Z 308DEG 33KT 4097 7612
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse3 follow-up statements
756
WWUS51 KPHI 140038
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
838 PM EDT Mon Sep 13 2021
PAC025-089-140100-
/O.CON.KPHI.SV.W.0299.000000T0000Z-210914T0100Z/
Carbon PA-Monroe PA-
838 PM EDT Mon Sep 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR CARBON AND SOUTHWESTERN MONROE COUNTIES...
At 837 PM EDT, a severe thunderstorm was located over Nesquehoning,
or 7 miles west of Lehighton, moving southeast at 40 mph. Additional
storms were moving across much of Monroe County.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Lehighton, Palmerton, Jim Thorpe, Nesquehoning, Weatherly,
Stormville, Brodheadsville, New Mahoning, Kunkletown, Gilbert, Pocono
Raceway, Lake Harmony, Rossland, Long Pond, Albrightsville,
Kresgeville, Sun Valley, Jonas, Meckesville and Beltzville State
Park.
This includes the following highways...
Northeast Extension between mile markers 72 and 96.
Interstate 80 in Pennsylvania between mile markers 277 and 295.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 4090 7598 4100 7573 4101 7574 4101 7573
4105 7577 4107 7577 4112 7569 4111 7564
4116 7559 4094 7520 4093 7522 4090 7523
4087 7528 4082 7544 4078 7567 4073 7576
TIME...MOT...LOC 0037Z 305DEG 33KT 4087 7585
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse372
WWUS51 KPHI 140043
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
843 PM EDT Mon Sep 13 2021
PAC025-089-140100-
/O.CON.KPHI.SV.W.0299.000000T0000Z-210914T0100Z/
Carbon PA-Monroe PA-
843 PM EDT Mon Sep 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR CARBON AND SOUTHWESTERN MONROE COUNTIES...
At 843 PM EDT, severe thunderstorms were located along a line
extending from near Stormville to near New Mahoning, moving southeast
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...
Lehighton, Palmerton, Jim Thorpe, Nesquehoning, Weatherly,
Stormville, Brodheadsville, New Mahoning, Kunkletown, Gilbert, Pocono
Raceway, Rossland, Long Pond, Albrightsville, Kresgeville, Sun
Valley, Jonas, Meckesville, Beltzville State Park and Saylorsburg.
This includes the following highways...
Northeast Extension between mile markers 72 and 90.
Interstate 80 in Pennsylvania between mile markers 292 and 295.
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.
&&
LAT...LON 4100 7573 4101 7574 4101 7573 4109 7547
4094 7520 4093 7522 4090 7523 4087 7528
4082 7544 4078 7567 4073 7576 4090 7598
TIME...MOT...LOC 0043Z 303DEG 34KT 4093 7528 4081 7588
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse686
WWUS51 KPHI 140054
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
854 PM EDT Mon Sep 13 2021
PAC025-089-140103-
/O.EXP.KPHI.SV.W.0299.000000T0000Z-210914T0100Z/
Carbon PA-Monroe PA-
854 PM EDT Mon Sep 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR CARBON AND SOUTHWESTERN MONROE
COUNTIES WILL EXPIRE AT 900 PM EDT...
The storms which prompted the warning will be moving out of this
warning shortly. Therefore, this warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 100 AM EDT for
eastern and northeastern Pennsylvania.
Remember, another Severe Thunderstorm Warning still remains in
effect for the southeastern portions of Carbon and Monroe counties
until 930 PM.
LAT...LON 4100 7573 4101 7574 4101 7573 4109 7547
4094 7520 4093 7522 4090 7523 4087 7528
4082 7544 4078 7567 4073 7576 4090 7598
TIME...MOT...LOC 0053Z 308DEG 33KT 4089 7522 4077 7582
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 8:41 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 49 min |
| Sep 13, 8:51 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 108 min |
| Sep 13, 9:03 PM EDT | Areal Flood Advisory | PHI | Monroe, Northampton | 109 min |
| Sep 13, 9:12 PM EDT | Flash Flood Warning | PHI | Northampton | 114 min |
| Sep 13, 9:21 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Northampton | 38 min |
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.