Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 312, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 7, 2023, 5:57 PM EDT for Lehigh County, Monroe County, Northampton County, Pennsylvania; Warren County, New Jersey. It was in force for 34 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
- Sep 7, 2023, 5:57 PM EDT (21:57 UTC)
- Expired
- Sep 7, 2023, 6:31 PM EDT
- In force
- 34 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Warren County, NJ, Lehigh County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 141 km from the middle of the area, began a volume at 21:57 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 7, 5:57 PM EDT | TSTM WND DMG | 1 Se Hernyville, PA | PA-191 in Monroe Country is closed in both directions, between the intersections of Creek Road (PA-447) in Stroud Township and PA-715 in Paradise Township, due to a downed tree in wires. |
| Sep 7, 6:00 PM EDT | TSTM WND DMG | 1 Sse Stroudsburg, PA | Corrects previous tstm wnd dmg report from 1 SSE Stroudsburg. Downed tree in wires on Cherry Valley Road. Time estimated from radar. |
| Sep 7, 6:01 PM EDT | TSTM WND DMG | 2 Se Smithfield Twp, PA | Downed tree in wires on Hollow Road. Time estimated from radar. |
| Sep 7, 6:23 PM EDT | HAIL 0.25 | 3 Nne Coolbaugh Twp, PA |
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 7, 1:14 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 197 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
- 2039 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1218 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
204
WUUS51 KPHI 072157
SVRPHI
NJC041-PAC077-089-095-072245-
/O.NEW.KPHI.SV.W.0312.230907T2157Z-230907T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
557 PM EDT Thu Sep 7 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Warren County in northwestern New Jersey...
East central Lehigh County in eastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
Northampton County in eastern Pennsylvania...
* Until 645 PM EDT.
* At 557 PM EDT, severe thunderstorms were located along a line
extending from Tobyhanna to near McMichael to near Northampton,
moving northeast 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...
Mount Pocono, Northampton, East Stroudsburg, Tobyhanna, Nazareth,
Bangor, Pen Argyl, Wind Gap, Bath, Belvidere, Oxford, Belfast,
Tatamy, East Bangor, Steuben, Stormville, Werry Lake, Skytop,
Tannersville and Reeders.
This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 297 and 314.
Interstate 80 in New Jersey between mile markers 0 and 9.
Interstate 380 in Pennsylvania between mile markers 0 and 8.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.
&&
LAT...LON 4115 7515 4114 7509 4108 7503 4109 7500
4109 7497 4079 7502 4063 7554 4097 7540
4123 7544 4124 7543 4125 7513
TIME...MOT...LOC 2157Z 237DEG 33KT 4118 7538 4099 7536 4071 7545
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS2 follow-up statements
442
WWUS51 KPHI 072216
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
616 PM EDT Thu Sep 7 2023
PAC077-072225-
/O.CAN.KPHI.SV.W.0312.000000T0000Z-230907T2245Z/
Lehigh PA-
616 PM EDT Thu Sep 7 2023
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LEHIGH COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northwestern New Jersey...and eastern and northeastern Pennsylvania.
LAT...LON 4070 7531 4102 7521 4124 7529 4125 7513
4115 7515 4114 7509 4108 7503 4109 7500
4109 7497 4079 7502
TIME...MOT...LOC 2215Z 252DEG 33KT 4125 7522 4104 7515 4076 7524
$$
NJC041-PAC089-095-072245-
/O.CON.KPHI.SV.W.0312.000000T0000Z-230907T2245Z/
Warren NJ-Monroe PA-Northampton PA-
616 PM EDT Thu Sep 7 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHWESTERN WARREN...EASTERN MONROE AND NORTHEASTERN NORTHAMPTON
COUNTIES...
At 615 PM EDT, severe thunderstorms were located along a line
extending from Skytop to near East Stroudsburg to Tatamy, moving east
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...
East Stroudsburg, Nazareth, Bangor, Pen Argyl, Belvidere, Oxford,
Belfast, Tatamy, East Bangor, Werry Lake, Delaware Water Gap, Skytop,
Mountainhome, Alpine Mountain, Analomink, Canadensis, Roxburg,
Columbia, Echo Lake and Stroudsburg.
This includes the following highways...
Interstate 80 in Pennsylvania between mile markers 310 and 314.
Interstate 80 in New Jersey between mile markers 0 and 9.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
&&
LAT...LON 4070 7531 4102 7521 4124 7529 4125 7513
4115 7515 4114 7509 4108 7503 4109 7500
4109 7497 4079 7502
TIME...MOT...LOC 2215Z 252DEG 33KT 4125 7522 4104 7515 4076 7524
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS825
WWUS51 KPHI 072231
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
631 PM EDT Thu Sep 7 2023
NJC041-PAC089-095-072241-
/O.CAN.KPHI.SV.W.0312.000000T0000Z-230907T2245Z/
Warren NJ-Monroe PA-Northampton PA-
631 PM EDT Thu Sep 7 2023
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WARREN...EASTERN
MONROE AND NORTHEASTERN NORTHAMPTON COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northwestern New Jersey...and eastern and northeastern Pennsylvania.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4070 7531 4102 7521 4124 7529 4125 7513
4115 7515 4114 7509 4108 7503 4109 7500
4109 7497 4079 7502
TIME...MOT...LOC 2228Z 237DEG 33KT 4132 7508 4111 7501 4083 7510
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 1:10 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 33 min |
| Sep 7, 1:38 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 19 min |
| Sep 7, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 50 min |
| Sep 7, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 47 min |
| Sep 7, 2:52 PM EDT | Severe Thunderstorm Warning | PHI | Monroe, Northampton | 24 min |
| Sep 7, 4:35 PM EDT | Special Weather Statement | PHI | Berks | 25 min |
| Sep 7, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh | 43 min |
| Sep 7, 5:17 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Carbon, Lehigh, Monroe | 43 min |
| Sep 7, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 31 min |
| Sep 7, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 41 min |
| Sep 7, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Lehigh, Montgomery, Northampton | 46 min |
| Sep 7, 5:48 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 42 min |
| Sep 7, 6:06 PM EDT | Special Weather Statement | PHI | Bucks, Montgomery | 24 min |
| Sep 7, 6:18 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 42 min |
| Sep 7, 6:24 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Monroe, Northampton | 24 min |
| Sep 7, 7:00 PM EDT | Special Weather Statement | PHI | Montgomery | 30 min |
| Sep 7, 7:36 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 39 min |
| Sep 7, 1:52 PM EDT | Special Weather Statement | PHI | Warren | 23 min |
| Sep 7, 3:17 PM EDT | Special Weather Statement | PHI | Sussex | 28 min |
| Sep 7, 6:21 PM EDT | Special Weather Statement | PHI | Warren | 24 min |
| Sep 7, 6:30 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 45 min |
| Sep 7, 7:05 PM EDT | Special Weather Statement | PHI | Morris | 25 min |
| Sep 7, 7:11 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 34 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2023Severe Thunderstorm Warnings in New Jersey, 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.