Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 94, NWS Philadelphia/Mount Holly

June 30, 20246 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 30, 2024, 6:06 PM EDT for 6 counties in New Jersey. It was in force for 39 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 30, 2024, 6:06 PM EDT (22:06 UTC)
Expired: Jun 30, 2024, 6:45 PM EDT
In force: 39 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 22:10 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 30, 6:08 PM EDT	TSTM WND DMG	1 S Mullica Hill, NJ	Pictures shared on social media showed trees down in the vicinity of Commissioners Road and Bridgeton Pike in Mullica Hill. One tree took down wires and a pole. Some road closures. Time estimated from radar.
Jun 30, 6:15 PM EDT	TSTM WND DMG	1 S Mullica Hill, NJ	Report from mPING: Trees uprooted.
Jun 30, 6:52 PM EDT	TSTM WND DMG	4 Ese Batsto, NJ	Wires down on Route 563 near Washington Township. 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 30, 11:09 AM EDT	Severe Thunderstorm Watch	SPC	10 hr
Jun 30, 3:21 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.1 hours before the alert went out and 195 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: 1755 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 1355 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 145 m²/s²
0-3 km storm-relative helicity: 149 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

054 
WUUS51 KPHI 302206
SVRPHI
NJC001-005-007-011-015-033-302245-
/O.NEW.KPHI.SV.W.0094.240630T2206Z-240630T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
606 PM EDT Sun Jun 30 2024

The National Weather Service in Mount Holly NJ has issued a

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

* Until 645 PM EDT.

* At 606 PM EDT, severe thunderstorms were located along a line
  extending from Evesham to near Mullica Hill to near Carneys Point,
  moving southeast at 30 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...
  Vineland, Millville, Bridgeton, Cumberland, Glassboro, Lindenwold,
  Hammonton, Pennsville, Pitman, Clayton, Berlin, Shamong, Buena, Egg
  Harbor City, Woodstown, Alloway, Weymouth, Estell Manor,
  Chesilhurst, and Newfield.

This includes the following highways...
 New Jersey Turnpike near exit 1.
 Garden State Parkway between mile markers 44 and 55.
 Atlantic City Expressway between mile markers 13 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 these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

&&

LAT...LON 3957 7440 3957 7442 3955 7441 3943 7469
      3932 7514 3965 7551 3977 7519 3989 7483
      3968 7439 3962 7439
TIME...MOT...LOC 2206Z 308DEG 28KT 3986 7492 3974 7518 3968 7545 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hoeflich

2 follow-up statements

947 
WWUS51 KPHI 302226
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
626 PM EDT Sun Jun 30 2024

NJC011-033-302235-
/O.CAN.KPHI.SV.W.0094.000000T0000Z-240630T2245Z/
Cumberland NJ-Salem NJ-
626 PM EDT Sun Jun 30 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CUMBERLAND AND
CENTRAL SALEM COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
southern New Jersey. A Severe Thunderstorm Watch also remains in
effect until 1100 PM EDT for southern New Jersey.

LAT...LON 3958 7440 3957 7442 3955 7442 3946 7463
      3953 7501 3964 7516 3965 7511 3987 7478
      3968 7439
TIME...MOT...LOC 2225Z 269DEG 28KT 3984 7477 3966 7504 3962 7524 

$$

NJC001-005-007-015-302245-
/O.CON.KPHI.SV.W.0094.000000T0000Z-240630T2245Z/
Atlantic NJ-Camden NJ-Gloucester NJ-Burlington NJ-
626 PM EDT Sun Jun 30 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM EDT
FOR CENTRAL ATLANTIC...SOUTHEASTERN CAMDEN...SOUTHEASTERN GLOUCESTER
AND SOUTHEASTERN BURLINGTON COUNTIES...

At 625 PM EDT, severe thunderstorms were located along a line
extending from near Tabernacle to near Clayton to near Elmer, moving
east at 30 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Hammonton, Clayton, Berlin, Shamong, Buena, Egg Harbor City,
Weymouth, Chesilhurst, Newfield, Port Republic, Franklinville,
Sicklerville, Elwood-Magnolia, Atsion, Wading River, Atco, Victory
Lakes, Wharton State Forest, Williamstown, and Malaga.

This includes the following highways...
 Garden State Parkway between mile markers 45 and 55.
 Atlantic City Expressway between mile markers 13 and 39.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3958 7440 3957 7442 3955 7442 3946 7463
      3953 7501 3964 7516 3965 7511 3987 7478
      3968 7439
TIME...MOT...LOC 2225Z 269DEG 28KT 3984 7477 3966 7504 3962 7524 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Hoeflich

669 
WWUS51 KPHI 302243
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
643 PM EDT Sun Jun 30 2024

NJC001-005-007-015-302252-
/O.EXP.KPHI.SV.W.0094.000000T0000Z-240630T2245Z/
Atlantic NJ-Camden NJ-Gloucester NJ-Burlington NJ-
643 PM EDT Sun Jun 30 2024

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ATLANTIC...
SOUTHEASTERN CAMDEN...SOUTHEASTERN GLOUCESTER AND SOUTHEASTERN
BURLINGTON COUNTIES WILL EXPIRE AT 645 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 are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
southern New Jersey. A Severe Thunderstorm Watch also remains in
effect until 1100 PM EDT for southern New Jersey.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.

A new Severe Thunderstorm Warning was issued for central Atlantic, 
southeastern Camden, and southeastern Burlington County. Refer to 
that bulletin with the updated information. 

LAT...LON 3958 7440 3957 7442 3955 7442 3946 7463
      3953 7501 3964 7516 3965 7511 3987 7478
      3968 7439
TIME...MOT...LOC 2242Z 308DEG 28KT 3977 7465 3959 7492 3955 7512 

$$

Hoeflich

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 30, 7:23 AM EDT	Flash Flood Warning	PHI	Atlantic, Cape May, Cumberland	4 hr
Jun 30, 8:00 AM EDT	Special Marine Warning	PHI		49 min
Jun 30, 1:57 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	48 min
Jun 30, 2:10 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	50 min
Jun 30, 2:42 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	63 min
Jun 30, 3:16 PM EDT	Small Craft Advisory	PHI		21 hr
Jun 30, 3:26 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	49 min
Jun 30, 4:10 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	35 min
Jun 30, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	50 min
Jun 30, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	53 min
Jun 30, 4:44 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	31 min
Jun 30, 4:53 PM EDT	Flash Flood Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	3 hr
Jun 30, 5:09 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	51 min
Jun 30, 5:11 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Somerset	49 min
Jun 30, 5:20 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	25 min
Jun 30, 5:26 PM EDT	Special Marine Warning	PHI		34 min
Jun 30, 5:51 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	39 min
Jun 30, 5:54 PM EDT	Flash Flood Warning	PHI	Burlington, Camden, Gloucester	3 hr
Jun 30, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth, Somerset	50 min
Jun 30, 6:17 PM EDT	Special Marine Warning	PHI		58 min
Jun 30, 6:26 PM EDT	Special Marine Warning	PHI		64 min
Jun 30, 6:35 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	40 min
Jun 30, 6:40 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Ocean	65 min
Jun 30, 6:42 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	48 min
Jun 30, 6:44 PM EDT	Special Marine Warning	PHI		2 hr
Jun 30, 6:49 PM EDT	Special Marine Warning	PHI		83 min
Jun 30, 7:00 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	45 min
Jun 30, 7:31 PM EDT	Severe Thunderstorm Warning	PHI	Salem	44 min
Jun 30, 7:34 PM EDT	Special Marine Warning	PHI		27 min
Jun 30, 7:37 PM EDT	Special Marine Warning	PHI		53 min
Jun 30, 7:43 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	24 min
Jun 30, 7:56 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Cumberland, Gloucester, Salem	49 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.