Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 262, NWS Philadelphia/Mount Holly

July 29, 20234 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 29, 2023, 6:28 PM EDT for 4 counties in New Jersey. It was in force for 47 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
Jul 29, 2023, 6:28 PM EDT (22:28 UTC)
Expired
Jul 29, 2023, 7:15 PM EDT
In force
47 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, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 44 km from the middle of the area, began a volume at 22:29 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 29, 2:48 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.5 hours before the alert went out and 198 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 12:00Z on 2023-07-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 90 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 12:00Z on 2023-07-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
90 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
1183 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

768 
WUUS51 KPHI 292228
SVRPHI
NJC001-005-007-029-292315-
/O.NEW.KPHI.SV.W.0262.230729T2228Z-230729T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
628 PM EDT Sat Jul 29 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Atlantic County in southern New Jersey...
  Southeastern Ocean County in southern New Jersey...
  Southeastern Camden County in southern New Jersey...
  Southeastern Burlington County in southern New Jersey...

* Until 715 PM EDT.

* At 627 PM EDT, a severe thunderstorm was located near
  Elwood-Magnolia, or 14 miles northeast of Vineland, moving east at
  40 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, Egg Harbor City, Tuckerton, Weymouth, Surf City, Port
  Republic, Pomona, Elwood-Magnolia, Wading River, Bass River State
  Forest, Batsto, New Gretna, Beach Haven West, Mizpah, Mystic
  Island, Folsom, Manahawkin, Collings Lakes and Ocean Acres.

This includes the following highways...
 Garden State Parkway between mile markers 42 and 64.
 Atlantic City Expressway between mile markers 14 and 31.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3944 7417 3949 7488 3967 7488 3973 7411
TIME...MOT...LOC 2227Z 265DEG 34KT 3957 7477 

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

$$

MLB
1 follow-up statement
972 
WWUS51 KPHI 292305
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
705 PM EDT Sat Jul 29 2023

NJC007-292315-
/O.CAN.KPHI.SV.W.0262.000000T0000Z-230729T2315Z/
Camden NJ-
705 PM EDT Sat Jul 29 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CAMDEN 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 900 PM EDT for
southern New Jersey.

LAT...LON 3944 7417 3948 7472 3961 7468 3971 7443
      3973 7411
TIME...MOT...LOC 2305Z 269DEG 31KT 3955 7436 

$$

NJC001-005-029-292315-
/O.CON.KPHI.SV.W.0262.000000T0000Z-230729T2315Z/
Atlantic NJ-Ocean NJ-Burlington NJ-
705 PM EDT Sat Jul 29 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR CENTRAL ATLANTIC...SOUTHEASTERN OCEAN AND SOUTHEASTERN BURLINGTON
COUNTIES...

At 705 PM EDT, a severe thunderstorm was located near Tuckerton, or
12 miles north of Atlantic City, moving east at 35 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...
Egg Harbor City, Tuckerton, Surf City, Port Republic, Bass River
State Forest, Pomona, New Gretna, Wading River, Beach Haven West,
Mystic Island, Manahawkin and Ocean Acres.

This includes the following highways...
 Garden State Parkway between mile markers 42 and 64.
 Atlantic City Expressway between mile markers 14 and 18.

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, and
the storm will affect the beaches. For your safety, immediately move
off the beach and seek shelter indoors.

&&

LAT...LON 3944 7417 3948 7472 3961 7468 3971 7443
      3973 7411
TIME...MOT...LOC 2305Z 269DEG 31KT 3955 7436 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 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.

IssuedProductOfficeCountiesLasted
Jul 28, 8:04 PM EDTSevere Thunderstorm WarningPHISalem41 min
Jul 28, 8:33 PM EDTSpecial Weather StatementPHICumberland, Gloucester, Salem42 min
Jul 28, 8:36 PM EDTSpecial Marine WarningPHI54 min
Jul 28, 9:02 PM EDTSpecial Weather StatementPHICamden43 min
Jul 28, 9:18 PM EDTSpecial Weather StatementPHICape May, Cumberland, Salem42 min
Jul 28, 9:32 PM EDTSpecial Marine WarningPHI58 min
Jul 28, 9:44 PM EDTSpecial Weather StatementPHIBurlington, Camden, Mercer, Middlesex61 min
Jul 28, 10:00 PM EDTSpecial Weather StatementPHIAtlantic, Cape May45 min
Jul 28, 10:28 PM EDTSpecial Marine WarningPHI62 min
Jul 28, 10:54 PM EDTSpecial Weather StatementPHICumberland, Salem36 min
Jul 28, 11:15 PM EDTSpecial Weather StatementPHICape May30 min
Jul 28, 11:26 PM EDTSpecial Marine WarningPHI94 min
Jul 29, 12:43 AM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland47 min
Jul 29, 12:55 AM EDTSpecial Marine WarningPHI65 min
Jul 29, 4:55 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem50 min
Jul 29, 5:05 PM EDTSpecial Marine WarningPHI85 min
Jul 29, 5:38 PM EDTSevere Thunderstorm WarningPHIAtlantic, Camden, Cumberland, Gloucester, Salem52 min
Jul 29, 5:44 PM EDTSevere Thunderstorm Warning Considerable damage threatPHISalem46 min
Jul 29, 5:51 PM EDTSpecial Marine WarningPHI114 min
Jul 29, 6:07 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cape May, Cumberland, Salem68 min
Jul 29, 6:13 PM EDTSpecial Weather StatementPHIMorris, Sussex32 min
Jul 29, 6:13 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset47 min
Jul 29, 6:26 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem49 min
Jul 29, 6:33 PM EDTSevere Thunderstorm WarningPHICape May42 min
Jul 29, 6:41 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Somerset49 min
Jul 29, 6:46 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester44 min
Jul 29, 6:51 PM EDTSpecial Marine WarningPHI54 min
Jul 29, 7:19 PM EDTSpecial Marine WarningPHI56 min
Jul 29, 7:19 PM EDTSevere Thunderstorm WarningPHIMonmouth26 min
Jul 29, 7:35 PM EDTSpecial Weather StatementPHIMonmouth70 min
Jul 29, 7:53 PM EDTSpecial Marine WarningPHI97 min
Jul 29, 7:54 PM EDTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean40 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2023Every severe thunderstorm warning in 2023

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.