Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 6, NWS Philadelphia/Mount Holly

April 15, 2024Cumberland County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 15, 2024, 4:21 PM EDT for Cumberland County, Salem County, New Jersey. It was in force for 22 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
Apr 15, 2024, 4:21 PM EDT (20:21 UTC)
Expired
Apr 15, 2024, 4:43 PM EDT
In force
22 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Cumberland County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 68 km from the middle of the area, began a volume at 20:23 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, 8.4 hours before the alert went out and 168 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 2024-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2024-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2119 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

929 
WUUS51 KPHI 152021
SVRPHI
NJC011-033-152115-
/O.NEW.KPHI.SV.W.0006.240415T2021Z-240415T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
421 PM EDT Mon Apr 15 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Western Cumberland County in southern New Jersey...
  Southern Salem County in southern New Jersey...

* Until 515 PM EDT.

* At 421 PM EDT, a severe thunderstorm was located over Mount
  Pleasant, or near Middletown, moving east at 35 mph.

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

  SOURCE...Trained weather spotters.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Vineland, Millville, Bridgeton, Greenwich, Shiloh, Newport,
  Hancocks Bridge, Newport Meadows, Hope Creek, Fairton, Cedarville,
  Rosenhayn, and Seabrook Farms.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3953 7556 3948 7504 3923 7514 3940 7553
      3941 7553 3944 7558 3944 7557 3946 7559
      3949 7559
TIME...MOT...LOC 2021Z 287DEG 32KT 3951 7570 

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

$$

RCM
1 follow-up statement
545 
WWUS51 KPHI 152043
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
443 PM EDT Mon Apr 15 2024

NJC011-033-152053-
/O.CAN.KPHI.SV.W.0006.000000T0000Z-240415T2115Z/
Cumberland NJ-Salem NJ-
443 PM EDT Mon Apr 15 2024

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CUMBERLAND AND
SOUTHERN SALEM 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.

LAT...LON 3953 7556 3948 7504 3923 7514 3940 7553
      3941 7553 3944 7558 3944 7557 3946 7559
      3949 7559
TIME...MOT...LOC 2039Z 287DEG 32KT 3945 7545 

$$

RCM

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 14, 8:26 PM EDTSpecial Weather StatementPHIHunterdon34 min
Apr 14, 9:04 PM EDTSpecial Weather StatementPHIBurlington, Camden, Gloucester, Salem41 min
Apr 14, 9:43 PM EDTSpecial Weather StatementPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem47 min
Apr 14, 10:20 PM EDTSpecial Marine WarningPHI64 min
Apr 14, 10:26 PM EDTSpecial Marine WarningPHI64 min
Apr 15, 3:55 PM EDTSpecial Marine WarningPHI65 min
Apr 15, 4:10 PM EDTSpecial Weather StatementPHISalem50 min
Apr 15, 4:44 PM EDTSpecial Weather StatementPHICumberland61 min
Apr 15, 4:47 PM EDTSpecial Weather StatementPHIAtlantic, Salem58 min
Apr 15, 5:59 PM EDTSpecial Weather StatementPHICape May46 min
Apr 15, 6:00 PM EDTSpecial Marine WarningPHI60 min

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.