Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 145, NWS Philadelphia/Mount Holly

July 2, 20234 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2023, 4:01 PM EDT for 4 counties in New Jersey. It was in force for 29 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 2, 2023, 4:01 PM EDT (20:01 UTC)
Expired
Jul 2, 2023, 4:30 PM EDT
In force
29 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Atlantic County, NJ, Cumberland 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 20:02 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.0 hours before the alert went out and 185 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, Wallops Is Stn, VA at 12:00Z on 2023-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 212 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, Wallops Is Stn, VA at 12:00Z on 2023-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939Sfc1 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
212 J/kg
Mixed-layer CIN
-110 J/kg
Mixed-layer LCL
1096 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

081 
WUUS51 KPHI 022001
SVRPHI
NJC001-011-015-033-022045-
/O.NEW.KPHI.SV.W.0145.230702T2001Z-230702T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
401 PM EDT Sun Jul 2 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Atlantic County in southern New Jersey...
  Central Cumberland County in southern New Jersey...
  East central Salem County in southern New Jersey...
  Southeastern Gloucester County in southern New Jersey...

* Until 445 PM EDT.

* At 401 PM EDT, a severe thunderstorm was located over Bridgeton,
  moving northeast at 35 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, Hammonton, Buena, Weymouth,
  Newfield, Greenwich, Shiloh, Victory Lakes, Olivet, Malaga,
  Fairton, Cedarville, Mizpah, Seabrook Farms, Monroe Township, South
  Vineland, Rosenhayn and Franklinville.

This includes Atlantic City Expressway between mile markers 21 and
29.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3953 7471 3927 7527 3942 7540 3970 7494
      3966 7491 3964 7491 3961 7488 3965 7483
TIME...MOT...LOC 2001Z 234DEG 30KT 3940 7526 

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

$$

Fitzsimmons
1 follow-up statement
799 
WWUS51 KPHI 022030
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
430 PM EDT Sun Jul 2 2023

NJC001-011-015-033-022040-
/O.CAN.KPHI.SV.W.0145.000000T0000Z-230702T2045Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Gloucester NJ-
430 PM EDT Sun Jul 2 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ATLANTIC...
CENTRAL CUMBERLAND...EAST CENTRAL SALEM AND SOUTHEASTERN GLOUCESTER
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.

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

LAT...LON 3953 7471 3927 7527 3942 7540 3970 7494
      3966 7491 3964 7491 3961 7488 3965 7483
TIME...MOT...LOC 2028Z 234DEG 30KT 3954 7500 

$$

Hoeflich

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 3:23 PM EDTSpecial Weather StatementPHIBurlington37 min
Jul 2, 4:50 PM EDTSpecial Weather StatementPHIMonmouth25 min
Jul 2, 4:57 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean29 min
Jul 2, 5:17 PM EDTSpecial Marine WarningPHI31 min
Jul 2, 5:20 PM EDTSpecial Weather StatementPHIMonmouth25 min
Jul 2, 5:55 PM EDTSpecial Weather StatementPHIMonmouth35 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.