Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 49, NWS Philadelphia/Mount Holly

June 23, 20245 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 23, 2024, 6:39 PM EDT for 5 counties in New Jersey. It was in force for 51 min. 3 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, 6:39 PM EDT (22:39 UTC)
Expired: Jun 23, 2024, 7:30 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 Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 63 km from the middle of the area, began a volume at 22:39 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, 6:40 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, 10.7 hours before the alert went out and 197 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.

240 
WUUS51 KPHI 232239
SVRPHI
NJC001-005-007-015-033-232330-
/O.NEW.KPHI.SV.W.0049.240623T2239Z-240623T2330Z/

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

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Atlantic County in southern New Jersey...
  Central Salem County in southern New Jersey...
  Southern Camden County in southern New Jersey...
  Gloucester County in southern New Jersey...
  Central Burlington County in southern New Jersey...

* Until 730 PM EDT.

* At 638 PM EDT, a severe thunderstorm was located near Mullica Hill,
  or 14 miles south of 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...
  Glassboro, Lindenwold, Hammonton, Pitman, Clayton, Berlin,
  Tabernacle, Shamong, Woodstown, Woodbury Heights, Swedesboro,
  Chesilhurst, Elmer, Franklinville, Sicklerville, Elwood-Magnolia,
  Atsion, Atco, Victory Lakes, and Williamstown.

This includes the following highways...
 New Jersey Turnpike near exit 2.
 Interstate 295 in New Jersey near mile marker 12.
 Atlantic City Expressway between mile markers 21 and 44.

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 3962 7535 3979 7534 3986 7464 3954 7467
TIME...MOT...LOC 2238Z 268DEG 33KT 3969 7521 

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

$$

Staarmann

2 follow-up statements

501 
WWUS51 KPHI 232253
SVSPHI

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

NJC033-232303-
/O.CAN.KPHI.SV.W.0049.000000T0000Z-240623T2330Z/
Salem NJ-
653 PM EDT Sun Jun 23 2024

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SALEM 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.

LAT...LON 3954 7467 3959 7509 3965 7518 3981 7516
      3986 7464
TIME...MOT...LOC 2253Z 267DEG 33KT 3969 7502 

$$

NJC001-005-007-015-232330-
/O.CON.KPHI.SV.W.0049.000000T0000Z-240623T2330Z/
Atlantic NJ-Camden NJ-Gloucester NJ-Burlington NJ-
653 PM EDT Sun Jun 23 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHWESTERN ATLANTIC...SOUTHERN CAMDEN...EASTERN GLOUCESTER AND
CENTRAL BURLINGTON COUNTIES...

At 653 PM EDT, a severe thunderstorm was located over Williamstown,
or 15 miles south of 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...
Glassboro, Lindenwold, Hammonton, Pitman, Clayton, Berlin,
Tabernacle, Shamong, Woodbury Heights, Chesilhurst, Franklinville,
Sicklerville, Elwood-Magnolia, Atsion, Atco, Victory Lakes,
Williamstown, Marlton Lakes, Turnersville, and Monroe Township.

This includes Atlantic City Expressway between mile markers 21 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.

&&

LAT...LON 3954 7467 3959 7509 3965 7518 3981 7516
      3986 7464
TIME...MOT...LOC 2253Z 267DEG 33KT 3969 7502 

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

$$

Staarmann

439 
WWUS51 KPHI 232306
SVSPHI

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

NJC001-005-007-015-232330-
/O.CON.KPHI.SV.W.0049.000000T0000Z-240623T2330Z/
Atlantic NJ-Camden NJ-Gloucester NJ-Burlington NJ-
706 PM EDT Sun Jun 23 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHWESTERN ATLANTIC...SOUTHEASTERN CAMDEN...EAST CENTRAL
GLOUCESTER AND SOUTH CENTRAL BURLINGTON COUNTIES...

At 706 PM EDT, a severe thunderstorm was located near Hammonton, or
17 miles northeast of Vineland, moving east at 40 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...
Hammonton, Berlin, Shamong, Chesilhurst, Atco, Elwood-Magnolia,
Atsion, Folsom, and Collings Lakes.

This includes Atlantic City Expressway between mile markers 21 and
35.
 
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 3957 7494 3978 7493 3985 7464 3954 7467
TIME...MOT...LOC 2306Z 268DEG 34KT 3968 7482 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 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, 6:03 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, 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 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.