Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 68, NWS Philadelphia/Mount Holly

June 16, 2023Atlantic County, Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 16, 2023, 11:04 AM EDT for Atlantic County, Cape May County, New Jersey. It was in force for 41 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
Jun 16, 2023, 11:04 AM EDT (15:04 UTC)
Expired
Jun 16, 2023, 11:45 AM EDT
In force
41 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Atlantic County, NJ, Cape May County, NJ

The radar

The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 15:04 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, 3.1 hours before the alert went out and 167 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 2023-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1057 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 2023-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
1057 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.9

Open this sounding in Storm Lab

The text

As transmitted.

797 
WUUS51 KPHI 161504
SVRPHI
NJC001-009-161545-
/O.NEW.KPHI.SV.W.0068.230616T1504Z-230616T1545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1104 AM EDT Fri Jun 16 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southeastern Atlantic County in southern New Jersey...
  Northeastern Cape May County in southern New Jersey...

* Until 1145 AM EDT.

* At 1104 AM EDT, a severe thunderstorm was located over Marmora, or
  near Ocean City, moving northeast at 20 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...
  Atlantic City, Ocean City, Pleasantville, Somers Point, Ventnor
  City, Brigantine, Northfield, Absecon, Margate City, Estell Manor,
  Longport, Corbin City, Beesleys Point, Seaville, Marmora,
  Strathmere, Pomona and Linwood.

This includes the following highways...
 Garden State Parkway between mile markers 21 and 40.
 Atlantic City Expressway between mile markers 0 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3916 7460 3922 7473 3947 7460 3939 7431
TIME...MOT...LOC 1504Z 213DEG 19KT 3923 7463 

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

$$

MLB
2 follow-up statements
116 
WWUS51 KPHI 161519
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1119 AM EDT Fri Jun 16 2023

NJC001-009-161545-
/O.CON.KPHI.SV.W.0068.000000T0000Z-230616T1545Z/
Atlantic NJ-Cape May NJ-
1119 AM EDT Fri Jun 16 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR SOUTHEASTERN ATLANTIC AND NORTHEASTERN CAPE MAY COUNTIES...

At 1119 AM EDT, a severe thunderstorm was located over Longport, or
near Ocean City, moving northeast at 20 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...
Atlantic City, Ocean City, Pleasantville, Somers Point, Ventnor City,
Brigantine, Northfield, Absecon, Margate City, Longport, Pomona and
Linwood.

This includes the following highways...
 Garden State Parkway between mile markers 36 and 39.
 Atlantic City Expressway between mile markers 0 and 7.

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 3920 7455 3920 7456 3925 7463 3945 7454
      3939 7432 3938 7432
TIME...MOT...LOC 1519Z 215DEG 19KT 3928 7454 

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

$$

Staarmann
091 
WWUS51 KPHI 161534
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1134 AM EDT Fri Jun 16 2023

NJC009-161544-
/O.CAN.KPHI.SV.W.0068.000000T0000Z-230616T1545Z/
Cape May NJ-
1134 AM EDT Fri Jun 16 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CAPE MAY 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 600 PM EDT for
southern New Jersey.

LAT...LON 3925 7449 3928 7455 3943 7447 3939 7433
      3939 7432 3938 7432
TIME...MOT...LOC 1534Z 216DEG 19KT 3932 7445 

$$

NJC001-161545-
/O.CON.KPHI.SV.W.0068.000000T0000Z-230616T1545Z/
Atlantic NJ-
1134 AM EDT Fri Jun 16 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR SOUTHEASTERN ATLANTIC COUNTY...

At 1134 AM EDT, a severe thunderstorm was located over Ventnor City,
or near Atlantic City, moving northeast at 20 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...
Atlantic City, Pleasantville, Ventnor City, Brigantine, Absecon,
Margate City and Longport.

This includes Atlantic City Expressway between mile markers 0 and 3.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3925 7449 3928 7455 3943 7447 3939 7433
      3939 7432 3938 7432
TIME...MOT...LOC 1534Z 216DEG 19KT 3932 7445 

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.

IssuedProductOfficeCountiesLasted
Jun 16, 10:39 AM EDTSpecial Weather StatementPHICape May36 min
Jun 16, 11:01 AM EDTSpecial Marine WarningPHI44 min
Jun 16, 11:20 AM EDTSevere Thunderstorm WarningPHIGloucester, Salem40 min
Jun 16, 11:43 AM EDTSpecial Marine WarningPHI62 min
Jun 16, 11:46 AM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem59 min
Jun 16, 11:54 AM EDTSpecial Marine WarningPHI66 min
Jun 16, 11:58 AM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer47 min
Jun 16, 12:25 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more65 min
Jun 16, 12:30 PM EDTSpecial Marine WarningPHI90 min
Jun 16, 12:41 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean49 min
Jun 16, 12:46 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Salem3 hr
Jun 16, 12:55 PM EDTTornado WarningPHIBurlington, Ocean35 min
Jun 16, 1:13 PM EDTSpecial Marine WarningPHI2 hr
Jun 16, 1:15 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cape May, Cumberland, Mercer, Middlesex and 2 more60 min
Jun 16, 1:29 PM EDTSpecial Marine WarningPHI2 hr
Jun 16, 2:53 PM EDTSpecial Marine WarningPHI67 min
Jun 16, 3:54 PM EDTSpecial Marine WarningPHI66 min
Jun 16, 5:07 PM EDTSpecial Marine WarningPHI53 min
Jun 16, 6:01 PM EDTSpecial Marine WarningPHI59 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.