Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 53, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 23, 2024, 8:42 PM EDT for New Castle County, Delaware; Cumberland County, Gloucester County, Salem County, New Jersey; Delaware County, Pennsylvania. It was in force for 48 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, 8:42 PM EDT (00:42 UTC)
- Expired
- Jun 23, 2024, 9:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties New Castle County, DE, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA
The radar
The Dover AFB radar (KDOX), 94 km from the middle of the area, began a volume at 00:45 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, 9:05 PM EDT | TSTM WND GST 43 | Lower Alloways Creek, NJ | NJWXNET Mesonet: Lower Alloways Creek. |
| Jun 23, 9:05 PM EDT | MARINE TSTM WIND 43 | Lower Alloways Creek, NJ | NJWXNET Mesonet: Lower Alloways Creek. |
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
Washington/Dulle, VA (KIAD), launched 00:00Z, 0.7 hours before the alert went out and 183 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
- 46 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 2331 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted.
126
WUUS51 KPHI 240042
SVRPHI
DEC003-NJC011-015-033-PAC045-240130-
/O.NEW.KPHI.SV.W.0053.240624T0042Z-240624T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
842 PM EDT Sun Jun 23 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
New Castle County in northern Delaware...
Northwestern Cumberland County in southern New Jersey...
Salem County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
South central Delaware County in southeastern Pennsylvania...
* Until 930 PM EDT.
* At 842 PM EDT, a severe thunderstorm was located over Cayots, or
near Middletown, moving northeast 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...
Wilmington, Newark, Middletown, Chester, Pennsville, Carneys Point,
Elsmere, New Castle, Penns Grove, Salem, Woodstown, Alloway,
Quinton, Swedesboro, Delaware City, Elmer, Newport, Shiloh, Arden,
and Stanton.
This includes the following highways...
New Jersey Turnpike near exit 1.
Interstate 95 in Pennsylvania between mile markers 0 and 6.
Interstate 95 in Delaware between mile markers 0 and 23.
Interstate 295 in New Jersey between mile markers 0 and 14.
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 3989 7537 3949 7511 3939 7577 3968 7579
TIME...MOT...LOC 0042Z 246DEG 40KT 3947 7582
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann3 follow-up statements
353
WWUS51 KPHI 240101
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
901 PM EDT Sun Jun 23 2024
DEC003-NJC011-015-033-PAC045-240130-
/O.CON.KPHI.SV.W.0053.000000T0000Z-240624T0130Z/
New Castle DE-Cumberland NJ-Salem NJ-Gloucester NJ-Delaware PA-
901 PM EDT Sun Jun 23 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR NEW CASTLE...NORTHWESTERN CUMBERLAND...SALEM...NORTHWESTERN
GLOUCESTER AND SOUTH CENTRAL DELAWARE COUNTIES...
At 901 PM EDT, a severe thunderstorm was located over Port Penn, or 9
miles northeast of Middletown, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Wilmington, Newark, Middletown, Chester, Pennsville, Carneys Point,
Elsmere, New Castle, Penns Grove, Salem, Woodstown, Alloway, Quinton,
Swedesboro, Delaware City, Elmer, Newport, Shiloh, Arden, and
Stanton.
This includes the following highways...
New Jersey Turnpike near exit 1.
Interstate 95 in Pennsylvania between mile markers 0 and 6.
Interstate 95 in Delaware between mile markers 0 and 23.
Interstate 295 in New Jersey between mile markers 0 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3989 7537 3949 7511 3939 7577 3968 7579
TIME...MOT...LOC 0101Z 248DEG 38KT 3954 7557
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann172
WWUS51 KPHI 240114
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
914 PM EDT Sun Jun 23 2024
DEC003-NJC011-015-033-PAC045-240130-
/O.CON.KPHI.SV.W.0053.000000T0000Z-240624T0130Z/
New Castle DE-Cumberland NJ-Salem NJ-Gloucester NJ-Delaware PA-
914 PM EDT Sun Jun 23 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR EASTERN NEW CASTLE...NORTHWESTERN CUMBERLAND...SALEM...
NORTHWESTERN GLOUCESTER AND SOUTH CENTRAL DELAWARE COUNTIES...
At 914 PM EDT, a severe thunderstorm was located near Alloway, or 11
miles southeast of Wilmington, moving northeast 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...
Wilmington, Chester, Pennsville, Carneys Point, Elsmere, New Castle,
Penns Grove, Salem, Woodstown, Alloway, Quinton, Swedesboro, Delaware
City, Elmer, Newport, Shiloh, Arden, Stanton, Hancocks Bridge, and
Port Penn.
This includes the following highways...
New Jersey Turnpike near exit 1.
Interstate 95 in Pennsylvania between mile markers 0 and 6.
Interstate 95 in Delaware between mile markers 7 and 23.
Interstate 295 in New Jersey between mile markers 0 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3989 7537 3949 7511 3941 7566 3974 7568
TIME...MOT...LOC 0114Z 246DEG 40KT 3960 7539
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann093 WWUS51 KPHI 240122 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 922 PM EDT Sun Jun 23 2024 DEC003-NJC011-015-033-PAC045-240132- /O.EXP.KPHI.SV.W.0053.000000T0000Z-240624T0130Z/ New Castle DE-Cumberland NJ-Salem NJ-Gloucester NJ-Delaware PA- 922 PM EDT Sun Jun 23 2024 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN NEW CASTLE... NORTHWESTERN CUMBERLAND...SALEM...NORTHWESTERN GLOUCESTER AND SOUTH CENTRAL DELAWARE COUNTIES WILL EXPIRE AT 930 PM EDT... The storm which prompted the warning has weakened below severe limits, and is exiting the warned area. Therefore, the warning will be allowed to expire. However gusty winds and heavy rain are still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for southern New Jersey...and southeastern Pennsylvania. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service Mount Holly NJ. LAT...LON 3989 7537 3949 7511 3941 7566 3974 7568 TIME...MOT...LOC 0122Z 246DEG 40KT 3963 7530 $$ Staarmann
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:34 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Cumberland, Ocean | 71 min |
| Jun 23, 8:44 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jun 23, 8:48 PM EDT | Special Marine Warning | PHI | 117 min | |
| Jun 23, 10:17 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Ocean | 43 min |
| Jun 23, 10:26 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jun 24, 1:14 AM EDT | Special Marine Warning | PHI | 61 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2024Severe Thunderstorm Warnings in Delaware, 2024Severe Thunderstorm Warnings in Pennsylvania, 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.