Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 51, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 23, 2024, 7:24 PM EDT for 4 counties in New Jersey; New Castle County, Delaware; Delaware County, Montgomery County, Philadelphia 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
- Jun 23, 2024, 7:24 PM EDT (23:24 UTC)
- Expired
- Jun 23, 2024, 8:15 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 New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 53 km from the middle of the area, began a volume at 23:23 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 23, 7:25 PM EDT | TSTM WND GST 54 | Logan Twp, NJ | Logan Twp NJWXNET Site. |
| Jun 23, 7:34 PM EDT | TSTM WND GST 44 | Philadelphia Internatio, PA | ASOS station KPHL Philadelphia International Airport. |
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 |
|---|---|---|---|
| Jun 23, 4:33 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 11.4 hours before the alert went out and 210 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
- 414 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 814 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted.
623
WUUS51 KPHI 232324
SVRPHI
DEC003-NJC005-007-015-033-PAC045-091-101-240015-
/O.NEW.KPHI.SV.W.0051.240623T2324Z-240624T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
724 PM EDT Sun Jun 23 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern New Castle County in northern Delaware...
North central Salem County in southern New Jersey...
Camden County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
Northwestern Burlington County in southern New Jersey...
Southeastern Montgomery County in southeastern Pennsylvania...
Philadelphia County in southeastern Pennsylvania...
Southern Delaware County in southeastern Pennsylvania...
* Until 815 PM EDT.
* At 724 PM EDT, a severe thunderstorm was located over Beckett, or
10 miles northeast of Wilmington, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Philadelphia, Camden, Gloucester City, Cherry Hill, Evesham, Mount
Laurel, Chester, Deptford, Voorhees, West Deptford, Lindenwold,
Bellmawr, Yeadon, Woodbury, Pitman, Riverside, Carneys Point,
Berlin, Palmyra, and Folcroft.
This includes the following highways...
New Jersey Turnpike between exits 2 and 4.
Pennsylvania Turnpike near mile marker 346.
Interstate 95 in Pennsylvania between mile markers 0 and 33.
Interstate 95 in Delaware between mile markers 19 and 23.
Interstate 76 in Pennsylvania between mile markers 337 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 5 and 43.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
Interstate 476 in Pennsylvania between mile markers 0 and 9.
Atlantic City Expressway between mile markers 42 and 44.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3978 7473 3970 7544 3985 7554 4017 7506
4008 7496 4006 7498 4005 7497 4007 7492
TIME...MOT...LOC 2324Z 254DEG 38KT 3979 7535
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann4 follow-up statements
724
WWUS51 KPHI 232337
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
737 PM EDT Sun Jun 23 2024
DEC003-NJC033-232347-
/O.CAN.KPHI.SV.W.0051.000000T0000Z-240624T0015Z/
New Castle DE-Salem NJ-
737 PM EDT Sun Jun 23 2024
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEW CASTLE AND
NORTH CENTRAL SALEM COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southern New Jersey...and southeastern Pennsylvania.
LAT...LON 3973 7529 3989 7535 4015 7503 4008 7496
4006 7498 4005 7497 4007 7492 3978 7473
TIME...MOT...LOC 2337Z 248DEG 37KT 3988 7521
$$
NJC005-007-015-PAC045-091-101-240015-
/O.CON.KPHI.SV.W.0051.000000T0000Z-240624T0015Z/
Camden NJ-Gloucester NJ-Burlington NJ-Montgomery PA-Philadelphia PA-
Delaware PA-
737 PM EDT Sun Jun 23 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR CAMDEN...NORTHWESTERN GLOUCESTER...NORTHWESTERN BURLINGTON...
SOUTHEASTERN MONTGOMERY...PHILADELPHIA AND SOUTHEASTERN DELAWARE
COUNTIES...
At 737 PM EDT, a severe thunderstorm was located over National Park,
or near Gloucester City, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Camden, Gloucester City, Cherry Hill, Evesham, Mount
Laurel, Deptford, Voorhees, West Deptford, Lindenwold, Bellmawr,
Yeadon, Woodbury, Pitman, Riverside, Berlin, Palmyra, Folcroft,
Swarthmore, and Paulsboro.
This includes the following highways...
New Jersey Turnpike between exits 2 and 4.
Interstate 95 in Pennsylvania between mile markers 7 and 33.
Interstate 76 in Pennsylvania between mile markers 340 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 14 and 43.
Interstate 676 in Pennsylvania between mile markers 0 and 1.
Interstate 676 in New Jersey between mile markers 0 and 4.
Atlantic City Expressway between mile markers 43 and 44.
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 3973 7529 3989 7535 4015 7503 4008 7496
4006 7498 4005 7497 4007 7492 3978 7473
TIME...MOT...LOC 2337Z 248DEG 37KT 3988 7521
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann232
WWUS51 KPHI 232348
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
748 PM EDT Sun Jun 23 2024
PAC045-091-232358-
/O.CAN.KPHI.SV.W.0051.000000T0000Z-240624T0015Z/
Montgomery PA-Delaware PA-
748 PM EDT Sun Jun 23 2024
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONTGOMERY AND
SOUTHEASTERN DELAWARE COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southern New Jersey...and southeastern Pennsylvania.
LAT...LON 3981 7508 3982 7517 3991 7520 3998 7513
4005 7497 4006 7496 4007 7492 3985 7478
TIME...MOT...LOC 2348Z 253DEG 37KT 3991 7509
$$
NJC005-007-015-PAC101-240015-
/O.CON.KPHI.SV.W.0051.000000T0000Z-240624T0015Z/
Camden NJ-Gloucester NJ-Burlington NJ-Philadelphia PA-
748 PM EDT Sun Jun 23 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR NORTHWESTERN CAMDEN...NORTH CENTRAL GLOUCESTER...NORTHWESTERN
BURLINGTON AND CENTRAL PHILADELPHIA COUNTIES...
At 748 PM EDT, a severe thunderstorm was located over Audubon Park,
or over Gloucester City, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Camden, Gloucester City, Cherry Hill, Evesham, Mount
Laurel, Deptford, Voorhees, Lindenwold, Bellmawr, Woodbury,
Riverside, Palmyra, Magnolia, Westville, Woodbury Heights, National
Park, Beverly, Brooklawn, and Audubon Park.
This includes the following highways...
New Jersey Turnpike between exits 3 and 4.
Interstate 95 in Pennsylvania between mile markers 15 and 26.
Interstate 76 in Pennsylvania between mile markers 349 and 351.
Interstate 76 in New Jersey between mile markers 0 and 3.
Interstate 295 in New Jersey between mile markers 23 and 43.
Interstate 676 in New Jersey between mile markers 0 and 4.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3981 7508 3982 7517 3991 7520 3998 7513
4005 7497 4006 7496 4007 7492 3985 7478
TIME...MOT...LOC 2348Z 253DEG 37KT 3991 7509
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann941
WWUS51 KPHI 240002
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
802 PM EDT Sun Jun 23 2024
NJC007-015-PAC101-240011-
/O.CAN.KPHI.SV.W.0051.000000T0000Z-240624T0015Z/
Camden NJ-Gloucester NJ-Philadelphia PA-
802 PM EDT Sun Jun 23 2024
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CAMDEN...NORTH
CENTRAL GLOUCESTER AND CENTRAL PHILADELPHIA COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southern New Jersey.
LAT...LON 3984 7490 3998 7499 4001 7488 3985 7478
TIME...MOT...LOC 0001Z 254DEG 39KT 3991 7487
$$
NJC005-240015-
/O.CON.KPHI.SV.W.0051.000000T0000Z-240624T0015Z/
Burlington NJ-
802 PM EDT Sun Jun 23 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR WEST CENTRAL BURLINGTON COUNTY...
At 801 PM EDT, a severe thunderstorm was located near Evesham, or 12
miles east of Camden, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Evesham, Mount Laurel, Marlton, Ramblewood, Medford Lakes, and
Moorestown-Lenola.
This includes the following highways...
New Jersey Turnpike near exit 4.
Interstate 295 in New Jersey between mile markers 38 and 43.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3984 7490 3998 7499 4001 7488 3985 7478
TIME...MOT...LOC 0001Z 254DEG 39KT 3991 7487
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann821 WWUS51 KPHI 240011 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 811 PM EDT Sun Jun 23 2024 NJC005-240020- /O.EXP.KPHI.SV.W.0051.000000T0000Z-240624T0015Z/ Burlington NJ- 811 PM EDT Sun Jun 23 2024 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL BURLINGTON COUNTY WILL EXPIRE AT 815 PM EDT... The storm which prompted the warning has weakened below severe limits, and has exited the warned area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for southern New Jersey. LAT...LON 3984 7490 3998 7499 4001 7488 3985 7478 TIME...MOT...LOC 0010Z 254DEG 38KT 3993 7479 $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 8:49 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 26 min |
| Jun 22, 8:55 PM EDT | Flash Flood Warning | PHI | Hunterdon, Warren | 4 hr |
| Jun 23, 3:16 AM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Ocean | 17 hr |
| Jun 23, 4:48 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 42 min |
| Jun 23, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 53 min |
| Jun 23, 5:52 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jun 23, 5:56 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 49 min |
| Jun 23, 6:03 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 42 min |
| Jun 23, 6:32 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Mercer, Middlesex, Monmouth and 1 more | 58 min |
| Jun 23, 6:35 PM EDT | Special Marine Warning | PHI | 115 min | |
| Jun 23, 6:36 PM EDT | Special Marine Warning | PHI | 114 min | |
| Jun 23, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Salem | 51 min |
| Jun 23, 7:13 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 62 min |
| Jun 23, 7:14 PM EDT | Special Marine Warning | PHI | 2 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2024Severe Thunderstorm Warnings in Pennsylvania, 2024Severe Thunderstorm Warnings in Delaware, 2024Every severe thunderstorm warning in 2024
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.