Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 199, NWS Philadelphia/Mount Holly

August 6, 2024Burlington County, Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 6, 2024, 9:32 PM EDT for Burlington County, Camden County, New Jersey. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 6, 2024, 9:32 PM EDT (01:32 UTC)
Expired
Aug 6, 2024, 9:59 PM EDT
In force
27 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Burlington County, NJ, Camden County, NJ

The radar

The Philadelphia radar (KDIX), 40 km from the middle of the area, began a volume at 01:35 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 1.5 hours before the alert went out and 199 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-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2024-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 123 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2024-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
123 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
553 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.8

Open this sounding in Storm Lab

The text

As transmitted.

239 
WUUS51 KPHI 070132
SVRPHI
NJC005-007-070215-
/O.NEW.KPHI.SV.W.0199.240807T0132Z-240807T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
932 PM EDT Tue Aug 6 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Camden County in southern New Jersey...
  Northern Burlington County in southern New Jersey...

* Until 1015 PM EDT.

* At 931 PM EDT, a severe thunderstorm was located over Audubon Park,
  or over Gloucester City, moving east at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Camden, Gloucester City, Cherry Hill, Evesham, Mount Laurel,
  Willingboro, Medford, Lumberton, Bellmawr, Burlington, Mount Holly,
  Riverside, Palmyra, Magnolia, Westville, Bordentown, Presidential
  Lakes Estates, Brooklawn, Pemberton, and Audubon Park.

This includes the following highways...
 New Jersey Turnpike between exits 3 and 7A.
 Interstate 76 in New Jersey between mile markers 0 and 3.
 Interstate 295 in New Jersey between mile markers 26 and 57.
 Interstate 676 in New Jersey between mile markers 0 and 4.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to 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 7446 3985 7510 3988 7513 3996 7513
      3998 7507 4000 7505 4016 7467
TIME...MOT...LOC 0131Z 254DEG 20KT 3990 7508 

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

$$

Gorse
2 follow-up statements
286 
WWUS51 KPHI 070146
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
946 PM EDT Tue Aug 6 2024

NJC005-007-070215-
/O.CON.KPHI.SV.W.0199.000000T0000Z-240807T0215Z/
Camden NJ-Burlington NJ-
946 PM EDT Tue Aug 6 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM EDT
FOR NORTHWESTERN CAMDEN AND NORTHERN BURLINGTON COUNTIES...

At 945 PM EDT, a severe thunderstorm was located over Ramblewood, or
near Camden, moving east at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Camden, Cherry Hill, Mount Laurel, Willingboro, Medford, Lumberton,
Burlington, Mount Holly, Riverside, Palmyra, Bordentown, Presidential
Lakes Estates, Pemberton, Wrightstown, Barclay-Kingston, Cherry Hill
Mall, Golden Triangle, Marlton, Leisuretowne, and Jacksonville.

This includes the following highways...
 New Jersey Turnpike between exits 4 and 7A.
 Interstate 295 in New Jersey between mile markers 33 and 57.

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 3989 7446 3988 7508 3997 7509 3998 7507
      4000 7505 4016 7467
TIME...MOT...LOC 0145Z 251DEG 18KT 3993 7498 

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

$$

Gorse
165 
WWUS51 KPHI 070159
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
959 PM EDT Tue Aug 6 2024

NJC005-007-070209-
/O.CAN.KPHI.SV.W.0199.000000T0000Z-240807T0215Z/
Camden NJ-Burlington NJ-
959 PM EDT Tue Aug 6 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CAMDEN AND
NORTHERN BURLINGTON COUNTIES IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 3989 7446 3988 7508 3997 7509 3998 7507
      4000 7505 4016 7467
TIME...MOT...LOC 0157Z 254DEG 20KT 3995 7488 

$$

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 8:29 PM EDTFlash Flood WarningPHIBurlington4 hr
Aug 6, 8:49 PM EDTFlash Flood Warning Considerable damage threatPHIMiddlesex, Somerset4 hr
Aug 6, 9:12 PM EDTFlash Flood Warning Considerable damage threatPHIBurlington, Camden3 hr
Aug 6, 11:37 PM EDTAreal Flood WarningPHIHunterdon, Mercer, Middlesex, Morris, Somerset4 hr
Aug 7, 12:07 AM EDTAreal Flood WarningPHIBurlington, Camden, Gloucester4 hr
Aug 7, 12:27 AM EDTAreal Flood WarningPHIBurlington, Mercer, Middlesex, Monmouth5 hr
Aug 7, 2:29 AM EDTFlash Flood WarningPHICape May, Cumberland113 min
Aug 7, 8:49 AM EDTMarine Dense Fog AdvisoryPHI21 hr
Aug 7, 2:09 PM EDTGale WatchPHI13 hr
Aug 7, 2:09 PM EDTSmall Craft AdvisoryPHI40 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.