Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 47, NWS Philadelphia/Mount Holly

June 23, 2024Gloucester County, Salem County, New Jersey; New Castle County, Delaware; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 23, 2024, 6:03 PM EDT for Gloucester County, Salem County, New Jersey; New Castle County, Delaware; Delaware County, Philadelphia County, Pennsylvania. It was in force for 42 min. 11 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, 6:03 PM EDT (22:03 UTC)
Expired: Jun 23, 2024, 6:45 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties New Castle County, DE, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 22:04 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, 6:10 PM EDT	TSTM WND DMG	1 N Farnhurst, DE	Pictures sent in of large power poles down near Wilmington. Time estimated from radar.
Jun 23, 6:12 PM EDT	TSTM WND DMG	New Castle, DE	Report of small to medium sized branches down in Old New Castle. Time estimated from radar.
Jun 23, 6:14 PM EDT	TSTM WND DMG	Newport, DE	Pictures passed along from media of several trees down across Newport, DE. Time estimated from radar.
Jun 23, 6:14 PM EDT	MARINE TSTM WIND 40	2 Ene Simonds Gardens, DE	Port of Wilmington mesonet measured a 34 kt gust.
Jun 23, 6:25 PM EDT	TSTM WND DMG	1 Ne Woodstown, NJ	Several trees down in Pilesgrove, NJ. Time estimated from radar.
Jun 23, 6:26 PM EDT	TSTM WND DMG	Woodstown, NJ	Large tree down across a road in Woodstown. Time estimated.
Jun 23, 6:26 PM EDT	TSTM WND DMG	Woodstown, NJ	Pictures sent in of trees down on a house in Woodstown, causing damage to the roof. Time estimated from radar.
Jun 23, 6:34 PM EDT	TSTM WND DMG	1 W Harrison Twp, NJ	Report from mPING: 1-inch tree limbs broken; Shingles blown off. Time adjusted based on radar data.
Jun 23, 6:40 PM EDT	TSTM WND DMG	1 S Mullica Hill, NJ	Report from mPING: 1-inch tree limbs broken; Shingles blown off.
Jun 23, 6:43 PM EDT	TSTM WND DMG	1 W Pitman, NJ	Tree snapped and lying across the road at intersection of Cedar Ave and Holly Ave. Time estimated.
Jun 23, 6:43 PM EDT	TSTM WND DMG	Pitman, NJ	Trained spotter trees down around Pitman. Time estimated from radar.

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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.1 hours before the alert went out and 200 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 555 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1226 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -43 m²/s²
0-3 km storm-relative helicity: -38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

529 
WUUS51 KPHI 232203
SVRPHI
DEC003-NJC015-033-PAC045-101-232245-
/O.NEW.KPHI.SV.W.0047.240623T2203Z-240623T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
603 PM EDT Sun Jun 23 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern New Castle County in northern Delaware...
  Salem County in southern New Jersey...
  Gloucester County in southern New Jersey...
  South central Philadelphia County in southeastern Pennsylvania...
  Southeastern Delaware County in southeastern Pennsylvania...

* Until 645 PM EDT.

* At 603 PM EDT, a severe thunderstorm was located over Wilmington
  Manor, or near Wilmington, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Philadelphia, Wilmington, Newark, Chester, Deptford, West Deptford,
  Glassboro, Pennsville, Bellmawr, Woodbury, Pitman, Clayton, Carneys
  Point, Elsmere, Paulsboro, New Castle, Penns Grove, Salem,
  Westville, and Woodstown.

This includes the following highways...
 New Jersey Turnpike between exits 1 and 2.
 Interstate 95 in Pennsylvania between mile markers 0 and 1, between
mile markers 11 and 12, and between mile markers 14 and 18.
 Interstate 95 in Delaware between mile markers 3 and 23.
 Interstate 76 in Pennsylvania near mile marker 351.
 Interstate 295 in New Jersey between mile markers 0 and 25.

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 3992 7513 3990 7513 3989 7514 3987 7512
      3954 7507 3954 7522 3956 7524 3955 7525
      3956 7573 3973 7576
TIME...MOT...LOC 2203Z 260DEG 32KT 3969 7557 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

2 follow-up statements

198 
WWUS51 KPHI 232215
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
615 PM EDT Sun Jun 23 2024

DEC003-NJC015-033-PAC045-101-232245-
/O.CON.KPHI.SV.W.0047.000000T0000Z-240623T2245Z/
New Castle DE-Salem NJ-Gloucester NJ-Philadelphia PA-Delaware PA-
615 PM EDT Sun Jun 23 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR NORTHEASTERN NEW CASTLE...SALEM...GLOUCESTER...SOUTH CENTRAL
PHILADELPHIA AND SOUTHEASTERN DELAWARE COUNTIES...

At 615 PM EDT, a severe thunderstorm was located over Carneys Point,
or near Wilmington, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Philadelphia, Wilmington, Chester, Deptford, West Deptford,
Glassboro, Pennsville, Woodbury, Pitman, Clayton, Carneys Point,
Folcroft, Elsmere, Paulsboro, New Castle, Penns Grove, Salem,
Westville, Woodstown, and Alloway.

This includes the following highways...
 New Jersey Turnpike between exits 1 and 2.
 Interstate 95 in Pennsylvania between mile markers 0 and 1, between
mile markers 11 and 12, and between mile markers 14 and 18.
 Interstate 95 in Delaware between mile markers 11 and 23.
 Interstate 76 in Pennsylvania near mile marker 351.
 Interstate 295 in New Jersey between mile markers 0 and 25.

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.

&&

LAT...LON 3980 7554 3992 7513 3989 7514 3986 7512
      3983 7511 3954 7507 3958 7557 3976 7562
TIME...MOT...LOC 2215Z 260DEG 31KT 3968 7547 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

708 
WWUS51 KPHI 232227
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
627 PM EDT Sun Jun 23 2024

DEC003-232237-
/O.CAN.KPHI.SV.W.0047.000000T0000Z-240623T2245Z/
New Castle DE-
627 PM EDT Sun Jun 23 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEW CASTLE COUNTY
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 3977 7544 3985 7537 3992 7513 3988 7514
      3984 7511 3954 7507 3957 7545
TIME...MOT...LOC 2227Z 258DEG 32KT 3971 7533 

$$

NJC015-033-PAC045-101-232245-
/O.CON.KPHI.SV.W.0047.000000T0000Z-240623T2245Z/
Salem NJ-Gloucester NJ-Philadelphia PA-Delaware PA-
627 PM EDT Sun Jun 23 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR CENTRAL SALEM...GLOUCESTER...SOUTH CENTRAL PHILADELPHIA AND
SOUTHEASTERN DELAWARE COUNTIES...

At 627 PM EDT, a severe thunderstorm was located over Swedesboro, or
10 miles east of Wilmington, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Philadelphia, Chester, Deptford, West Deptford, Glassboro, Woodbury,
Pitman, Clayton, Carneys Point, Folcroft, Paulsboro, Westville,
Woodstown, Alloway, Woodbury Heights, National Park, Swedesboro,
Elmer, Beckett, and Philadelphia International Arpt.

This includes the following highways...
 New Jersey Turnpike between exits 1 and 2.
 Interstate 95 in Pennsylvania between mile markers 10 and 12, and
between mile markers 14 and 18.
 Interstate 76 in Pennsylvania near mile marker 351.
 Interstate 295 in New Jersey between mile markers 5 and 25.

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.

&&

LAT...LON 3977 7544 3985 7537 3992 7513 3988 7514
      3984 7511 3954 7507 3957 7545
TIME...MOT...LOC 2227Z 258DEG 32KT 3971 7533 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

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, 6:32 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 Considerable damage threat	PHI	Atlantic, Burlington, Camden, Gloucester, Ocean	62 min
Jun 23, 7:14 PM EDT	Special Marine Warning	PHI		2 hr
Jun 23, 7:24 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	51 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2024 Severe Thunderstorm Warnings in Pennsylvania, 2024 Severe Thunderstorm Warnings in Delaware, 2024 Every 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.