Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 188, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 14, 2023, 5:54 AM EDT for 4 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 14, 2023, 5:54 AM EDT (09:54 UTC)
- Expired
- Jul 14, 2023, 6:45 AM EDT
- In force
- 51 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Somerset County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 09:56 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.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 9.9 hours before the alert went out and 179 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
- 1347 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 910 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 202 m²/s²
- 0-3 km storm-relative helicity
- 222 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 11.4
The text
As transmitted.
815
WUUS51 KPHI 140954
SVRPHI
NJC005-021-023-035-PAC017-141045-
/O.NEW.KPHI.SV.W.0188.230714T0954Z-230714T1045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
554 AM EDT Fri Jul 14 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Mercer County in central New Jersey...
North central Burlington County in southern New Jersey...
Southwestern Somerset County in northern New Jersey...
Southwestern Middlesex County in northern New Jersey...
Southeastern Bucks County in southeastern Pennsylvania...
* Until 645 AM EDT.
* At 554 AM EDT, a severe thunderstorm was located over Bristol, or 8
miles southwest of Trenton, 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...
Trenton, Ewing, Princeton, Florence, Burlington, Bristol,
Hightstown, Bordentown, Pennington, Yardley, Tullytown, Langhorne,
Windsor, Florence-Roebling, Plainsboro Center, Woodside, Edinburg,
White Horse, Twin Rivers and Mercerville-Hamilton Square.
This includes the following highways...
New Jersey Turnpike between exits 6 and 6A, and near exit 8A.
Pennsylvania Turnpike between mile markers 352 and 359.
Interstate 95 in Pennsylvania between mile markers 38 and 40.
Interstate 195 in New Jersey between mile markers 0 and 6.
Interstate 295 in New Jersey between mile markers 57 and 76.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4005 7486 4014 7498 4041 7470 4026 7448
TIME...MOT...LOC 0954Z 226DEG 24KT 4013 7486
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB3 follow-up statements
337
WWUS51 KPHI 141005
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
605 AM EDT Fri Jul 14 2023
NJC005-021-023-035-PAC017-141045-
/O.CON.KPHI.SV.W.0188.000000T0000Z-230714T1045Z/
Mercer NJ-Burlington NJ-Somerset NJ-Middlesex NJ-Bucks PA-
605 AM EDT Fri Jul 14 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM EDT
FOR MERCER...NORTH CENTRAL BURLINGTON...SOUTHWESTERN SOMERSET...
SOUTHWESTERN MIDDLESEX AND SOUTHEASTERN BUCKS COUNTIES...
At 604 AM EDT, a severe thunderstorm was located over Tullytown, or
near Trenton, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Trenton, Ewing, Princeton, Florence, Hightstown, Bordentown,
Pennington, Yardley, Tullytown, Langhorne, Windsor,
Florence-Roebling, Plainsboro Center, Woodside, Edinburg, White
Horse, Twin Rivers, Mercerville-Hamilton Square, Levittown and
Lawrenceville.
This includes the following highways...
New Jersey Turnpike exit 6A and near exit 8A.
Interstate 195 in New Jersey between mile markers 0 and 6.
Interstate 295 in New Jersey between mile markers 57 and 76.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4009 7479 4019 7493 4041 7470 4026 7448
TIME...MOT...LOC 1004Z 226DEG 24KT 4018 7479
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB276
WWUS51 KPHI 141021
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
621 AM EDT Fri Jul 14 2023
NJC005-PAC017-141030-
/O.CAN.KPHI.SV.W.0188.000000T0000Z-230714T1045Z/
Burlington NJ-Bucks PA-
621 AM EDT Fri Jul 14 2023
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BURLINGTON AND
SOUTHEASTERN BUCKS COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4016 7466 4018 7470 4027 7483 4041 7470
4026 7448
TIME...MOT...LOC 1020Z 226DEG 24KT 4026 7468
$$
NJC021-023-035-141045-
/O.CON.KPHI.SV.W.0188.000000T0000Z-230714T1045Z/
Mercer NJ-Somerset NJ-Middlesex NJ-
621 AM EDT Fri Jul 14 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM EDT
FOR MERCER...SOUTHWESTERN SOMERSET AND SOUTHWESTERN MIDDLESEX
COUNTIES...
At 620 AM EDT, a severe thunderstorm was located over
Mercerville-Hamilton Square, or near Trenton, moving northeast at 30
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Trenton, Ewing, Princeton, Hightstown, Pennington, Edinburg, White
Horse, Windsor, Twin Rivers, Mercerville-Hamilton Square, Plainsboro
Center, Lawrenceville, Princeton Meadows, Princeton Junction,
Princeton North and Yardville-Groveville.
This includes the following highways...
New Jersey Turnpike between exits 8 and 8A.
Interstate 195 in New Jersey between mile markers 1 and 6.
Interstate 295 in New Jersey between mile markers 61 and 73.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4016 7466 4018 7470 4027 7483 4041 7470
4026 7448
TIME...MOT...LOC 1020Z 226DEG 24KT 4026 7468
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB342
WWUS51 KPHI 141037
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
637 AM EDT Fri Jul 14 2023
NJC021-023-035-141047-
/O.EXP.KPHI.SV.W.0188.000000T0000Z-230714T1045Z/
Mercer NJ-Somerset NJ-Middlesex NJ-
637 AM EDT Fri Jul 14 2023
...THE SEVERE THUNDERSTORM WARNING FOR MERCER...SOUTHWESTERN SOMERSET
AND SOUTHWESTERN MIDDLESEX COUNTIES WILL EXPIRE AT 645 AM EDT...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.
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 4016 7466 4018 7470 4027 7483 4041 7470
4026 7448
TIME...MOT...LOC 1037Z 226DEG 24KT 4034 7457
$$
MLBThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 8:39 PM EDT | Coastal Flood Advisory | PHI | Ocean | 5 hr |
| Jul 13, 8:53 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 67 min |
| Jul 13, 9:57 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 48 min |
| Jul 13, 10:49 PM EDT | Special Weather Statement | PHI | Sussex | 26 min |
| Jul 14, 1:09 AM EDT | Special Weather Statement | PHI | Sussex | 21 min |
| Jul 14, 1:52 AM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Jul 14, 6:02 AM EDT | Special Weather Statement | PHI | Mercer | 28 min |
| Jul 14, 6:20 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Morris, Somerset | 40 min |
| Jul 14, 6:33 AM EDT | Special Weather Statement | PHI | Warren | 27 min |
| Jul 14, 6:35 AM EDT | Special Weather Statement | PHI | Middlesex | 25 min |
| Jul 14, 6:40 AM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 50 min |
| Jul 14, 6:55 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren | 50 min |
| Jul 14, 6:59 AM EDT | Special Weather Statement | PHI | Warren | 31 min |
| Jul 14, 7:22 AM EDT | Special Weather Statement | PHI | Sussex | 23 min |
| Jul 14, 7:27 AM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 18 min |
| Jul 14, 7:41 AM EDT | Special Weather Statement | PHI | Sussex | 34 min |
| Jul 14, 4:21 PM EDT | Special Weather Statement | PHI | Somerset | 39 min |
| Jul 14, 4:54 PM EDT | Special Weather Statement | PHI | Somerset | 51 min |
| Jul 14, 6:06 PM EDT | Special Weather Statement | PHI | Morris | 24 min |
| Jul 14, 6:07 PM EDT | Special Weather Statement | PHI | Warren | 38 min |
| Jul 14, 6:20 PM EDT | Special Weather Statement | PHI | Sussex | 25 min |
| Jul 14, 6:22 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 38 min |
| Jul 14, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 49 min |
| Jul 14, 6:46 PM EDT | Special Weather Statement | PHI | Sussex | 29 min |
| Jul 14, 6:52 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 53 min |
| Jul 14, 7:03 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 41 min |
| Jul 14, 7:08 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 39 min |
| Jul 14, 7:20 PM EDT | Special Weather Statement | PHI | Warren | 25 min |
| Jul 14, 7:40 PM EDT | Flash Flood Warning | PHI | Morris, Sussex, Warren | 6 hr |
| Jul 14, 7:46 PM EDT | Areal Flood Advisory | PHI | Sussex | 2 hr |
| Jul 13, 8:13 PM EDT | Special Weather Statement | PHI | Monroe | 32 min |
| Jul 13, 8:20 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 25 min |
| Jul 13, 9:28 PM EDT | Special Weather Statement | PHI | Monroe | 32 min |
| Jul 13, 10:01 PM EDT | Special Weather Statement | PHI | Monroe | 44 min |
| Jul 13, 10:48 PM EDT | Special Weather Statement | PHI | Monroe | 27 min |
| Jul 14, 5:30 AM EDT | Special Weather Statement | PHI | Philadelphia | 30 min |
| Jul 14, 3:43 PM EDT | Special Weather Statement | PHI | Montgomery | 32 min |
| Jul 14, 4:40 PM EDT | Special Weather Statement | PHI | Carbon | 35 min |
| Jul 14, 5:10 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 50 min |
| Jul 14, 5:33 PM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 29 min |
| Jul 14, 5:35 PM EDT | Special Weather Statement | PHI | Monroe | 25 min |
| Jul 14, 5:54 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 51 min |
| Jul 14, 6:02 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 6 hr |
| Jul 14, 7:16 PM EDT | Special Weather Statement | PHI | Lehigh | 29 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2023Severe 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.