Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 166, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 4, 2023, 4:24 PM EDT for 4 counties in New Jersey. It was in force for 36 min. 19 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
- Jul 4, 2023, 4:24 PM EDT (20:24 UTC)
- Expired
- Jul 4, 2023, 5:00 PM EDT
- In force
- 36 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Camden County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 8 km from the middle of the area, began a volume at 20:23 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 |
|---|---|---|---|
| Jul 4, 4:37 PM EDT | TSTM WND GST 54 | 2 E Fort Dix, NJ | 54 mph thunderstorm wind gust measured at Joint Base. |
| Jul 4, 4:37 PM EDT | TSTM WND GST 54 | 2 E Fort Dix, NJ | 54 mph thunderstorm wind gust measured at Joint Base. |
| Jul 4, 4:37 PM EDT | TSTM WND GST 54 | 2 E Fort Dix, NJ | 54 mph thunderstorm wind gust measured at Joint Base. |
| Jul 4, 4:37 PM EDT | TSTM WND GST 54 | 2 E Fort Dix, NJ | 54 mph thunderstorm wind gust measured at Joint Base. |
| Jul 4, 4:47 PM EDT | HAIL 1 | 1 Nw Jacksonville, NJ | Hail estimated to be quarter size in Westampton township in the Deerwood area. Time estimated from radar. |
| Jul 4, 4:47 PM EDT | HAIL 1 | 1 Nw Jacksonville, NJ | Hail estimated to be quarter size in Westampton township in the Deerwood area. Time estimated from radar. |
| Jul 4, 4:47 PM EDT | HAIL 1 | 1 Nw Jacksonville, NJ | Hail estimated to be quarter size in Westampton township in the Deerwood area. Time estimated from radar. |
| Jul 4, 4:47 PM EDT | HAIL 1 | 1 Nw Jacksonville, NJ | Hail estimated to be quarter size in Westampton township in the Deerwood area. Time estimated from radar. |
| Jul 4, 4:55 PM EDT | TSTM WND DMG | Lumberton Twp, NJ | Tree down on Landing Street in Lumberton. Time estimated from radar. |
| Jul 4, 4:55 PM EDT | TSTM WND DMG | Lumberton Twp, NJ | Tree down on Landing Street in Lumberton. Time estimated from radar. |
| Jul 4, 4:55 PM EDT | TSTM WND DMG | Lumberton Twp, NJ | Tree down on Landing Street in Lumberton. Time estimated from radar. |
| Jul 4, 5:00 PM EDT | HAIL 0.5 | Lumberton, NJ | Hail up to half inch in Lumberton. Time estimated from radar. |
| Jul 4, 5:00 PM EDT | HAIL 0.5 | Lumberton, NJ | Hail up to half inch in Lumberton. Time estimated from radar. |
| Jul 4, 5:00 PM EDT | HAIL 0.5 | Lumberton, NJ | Hail up to half inch in Lumberton. Time estimated from radar. |
| Jul 4, 5:00 PM EDT | HAIL 0.5 | Lumberton, NJ | Hail up to half inch in Lumberton. Time estimated from radar. |
| Jul 4, 5:10 PM EDT | TSTM WND DMG | Mount Laurel, NJ | Tree down onto wires near Union Mill Road. Time estimated from radar. |
| Jul 4, 5:10 PM EDT | TSTM WND DMG | Mount Laurel, NJ | Tree down onto wires near Union Mill Road. Time estimated from radar. |
| Jul 4, 5:10 PM EDT | TSTM WND DMG | Mount Laurel, NJ | Tree down onto wires near Union Mill Road. Time estimated from radar. |
| Jul 4, 5:10 PM EDT | TSTM WND DMG | Mount Laurel, NJ | Tree down onto wires near Union Mill Road. 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, 8.4 hours before the alert went out and 159 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
- 489 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 701 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
The text
As transmitted.
293
WUUS51 KPHI 042024
SVRPHI
NJC005-007-025-029-042100-
/O.NEW.KPHI.SV.W.0166.230704T2024Z-230704T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
424 PM EDT Tue Jul 4 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Ocean County in southern New Jersey...
Central Camden County in southern New Jersey...
Burlington County in southern New Jersey...
Southern Monmouth County in central New Jersey...
* Until 500 PM EDT.
* At 423 PM EDT, severe thunderstorms were located along a line
extending from Ramtown to Lakehurst to near Willingboro, moving
southeast at 20 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...
Toms River, Lakewood, Jackson, Evesham, Mount Laurel, Willingboro,
Voorhees, Medford, Barnegat, Lindenwold, Lumberton, Beachwood,
Burlington, Mount Holly, Berlin, Tabernacle, Shamong, Manasquan,
Point Pleasant Beach and Presidential Lakes Estates.
This includes the following highways...
New Jersey Turnpike near exit 5.
Interstate 195 in New Jersey between mile markers 21 and 33.
Interstate 295 in New Jersey between mile markers 39 and 52.
Garden State Parkway between mile markers 68 and 97.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3989 7379 3976 7413 3976 7500 4006 7491
4014 7443 4020 7415
TIME...MOT...LOC 2023Z 330DEG 17KT 4009 7415 4002 7434 3999 7492
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL3 follow-up statements
107
WWUS51 KPHI 042041
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
441 PM EDT Tue Jul 4 2023
NJC025-042050-
/O.CAN.KPHI.SV.W.0166.000000T0000Z-230704T2100Z/
Monmouth NJ-
441 PM EDT Tue Jul 4 2023
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MONMOUTH COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3991 7420 3976 7413 3976 7500 4006 7491
4009 7428
TIME...MOT...LOC 2040Z 330DEG 17KT 4002 7410 3995 7429 3992 7487
$$
NJC005-007-029-042100-
/O.CON.KPHI.SV.W.0166.000000T0000Z-230704T2100Z/
Ocean NJ-Camden NJ-Burlington NJ-
441 PM EDT Tue Jul 4 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR CENTRAL OCEAN...CENTRAL CAMDEN AND BURLINGTON COUNTIES...
At 440 PM EDT, severe thunderstorms were located along a line
extending from near Dover Beaches North to Holiday City-Berkeley to
near Mount Laurel, moving southeast at 20 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...
Toms River, Jackson, Evesham, Mount Laurel, Willingboro, Voorhees,
Medford, Barnegat, Lindenwold, Lumberton, Beachwood, Mount Holly,
Berlin, Tabernacle, Shamong, Presidential Lakes Estates, Lakehurst,
Pemberton, Wrightstown and Marlton.
This includes the following highways...
New Jersey Turnpike near exit 5.
Interstate 295 in New Jersey between mile markers 39 and 50.
Garden State Parkway between mile markers 68 and 79.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.
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.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3991 7420 3976 7413 3976 7500 4006 7491
4009 7428
TIME...MOT...LOC 2040Z 330DEG 17KT 4002 7410 3995 7429 3992 7487
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL838
WWUS51 KPHI 042048
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
448 PM EDT Tue Jul 4 2023
NJC005-007-029-042100-
/O.CON.KPHI.SV.W.0166.000000T0000Z-230704T2100Z/
Ocean NJ-Camden NJ-Burlington NJ-
448 PM EDT Tue Jul 4 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTHWESTERN OCEAN...CENTRAL CAMDEN AND CENTRAL BURLINGTON
COUNTIES...
At 448 PM EDT, severe thunderstorms were located along a line
extending from Dover Beaches North to near Holiday City-Berkeley to
near Medford, moving southeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Evesham, Mount Laurel, Willingboro, Voorhees, Medford, Lindenwold,
Lumberton, Mount Holly, Berlin, Tabernacle, Shamong, Presidential
Lakes Estates, Pemberton, Wrightstown, Marlton, Leisuretowne,
Chatsworth, Jacksonville, Atco and Presidential Lakes.
This includes the following highways...
New Jersey Turnpike near exit 5.
Interstate 295 in New Jersey between mile markers 39 and 48.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3976 7430 3976 7500 4005 7491 4007 7438
TIME...MOT...LOC 2048Z 330DEG 17KT 4000 7408 3993 7427 3990 7485
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL955
WWUS51 KPHI 042101
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
501 PM EDT Tue Jul 4 2023
NJC005-007-029-042109-
/O.EXP.KPHI.SV.W.0166.000000T0000Z-230704T2100Z/
Ocean NJ-Camden NJ-Burlington NJ-
501 PM EDT Tue Jul 4 2023
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OCEAN...CENTRAL
CAMDEN AND BURLINGTON COUNTIES WILL EXPIRE AT 500 PM EDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
Remember, a Severe Thunderstorm Warning still remains in effect for
west central Ocean, Camden, and Burlington Counties in New Jersey
until 545 PM EDT.
LAT...LON 3976 7430 3976 7500 4005 7491 4007 7438
TIME...MOT...LOC 2059Z 270DEG 17KT 3997 7406 3990 7425 3987 7483
$$
MJLThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 8:27 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 48 min |
| Jul 3, 8:34 PM EDT | Special Marine Warning | PHI | 116 min | |
| Jul 3, 8:41 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 49 min |
| Jul 3, 8:50 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 115 min |
| Jul 3, 8:58 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 47 min |
| Jul 3, 9:02 PM EDT | Special Marine Warning | PHI | 118 min | |
| Jul 3, 9:07 PM EDT | Flash Flood Warning | PHI | Salem | 5 hr |
| Jul 3, 9:22 PM EDT | Areal Flood Advisory | PHI | Morris | 83 min |
| Jul 3, 9:25 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 35 min |
| Jul 3, 9:52 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Salem | 38 min |
| Jul 3, 10:36 PM EDT | Areal Flood Advisory | PHI | Gloucester, Salem | 4 hr |
| Jul 4, 1:58 PM EDT | Special Weather Statement | PHI | Monmouth | 32 min |
| Jul 4, 2:51 PM EDT | Special Weather Statement | PHI | Middlesex | 24 min |
| Jul 4, 2:58 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth | 3 hr |
| Jul 4, 3:09 PM EDT | Areal Flood Advisory | PHI | Middlesex, Morris, Somerset | 2 hr |
| Jul 4, 3:16 PM EDT | Special Weather Statement | PHI | Mercer, Middlesex, Monmouth | 29 min |
| Jul 4, 3:19 PM EDT | Special Weather Statement | PHI | Passaic | 26 min |
| Jul 4, 3:22 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Ocean | 38 min |
| Jul 4, 3:34 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth, Somerset | 2 hr |
| Jul 4, 3:45 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 45 min |
| Jul 4, 3:52 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 38 min |
| Jul 4, 4:11 PM EDT | Areal Flood Advisory | PHI | Mercer, Middlesex, Monmouth, Ocean | 2 hr |
| Jul 4, 4:19 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jul 4, 4:26 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 23 min |
| Jul 4, 4:43 PM EDT | Areal Flood Advisory | PHI | Burlington, Mercer, Monmouth, Ocean | 2 hr |
| Jul 4, 4:59 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Ocean | 46 min |
| Jul 4, 5:23 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 112 min |
| Jul 4, 5:30 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 33 min |
| Jul 4, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 46 min |
| Jul 4, 5:46 PM EDT | Flash Flood Warning | PHI | Burlington, Camden | 3 hr |
| Jul 4, 6:02 PM EDT | Special Weather Statement | PHI | Middlesex | 28 min |
| Jul 4, 6:06 PM EDT | Areal Flood Advisory | PHI | Warren | 114 min |
| Jul 4, 6:29 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 21 min |
| Jul 4, 7:05 PM EDT | Areal Flood Advisory | PHI | Camden, Gloucester | 2 hr |
Nearby
Severe 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.