Alert archive / New Jersey / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 40, NWS Philadelphia/Mount Holly

November 28, 1993Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 28, 1993, 7:50 AM EST for Camden County, Gloucester County, New Jersey. It was in force for 45 min.

The area

The counties it named.

The facts

Issued
Nov 28, 1993, 7:50 AM EST (12:50 UTC)
Expired
Nov 28, 1993, 8:35 AM EST
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Camden County, NJ, Gloucester County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 0.8 hours before the alert went out and 58 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, Atlantic City In, NJ at 12:00Z on 1993-11-28Temperature 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 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 12:00Z on 1993-11-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 620 square meters per square second.1939587897117Sfc1 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
539 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
620 m²/s²
0-3 km storm-relative helicity
974 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS1 KPHL 281251 RRA
SVRPHL
NJC007-015-281335-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA PA
750 AM EST SUN NOV 28 1993
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  835 AM EST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH NEW JERSEY
 
   ...CAMDEN COUNTY...GLOUCESTER COUNTY
 
AT 750 AM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERTORM MOVING ACROSS SALEM COUNTY IN SOUTHERN NEW JERSEY. THIS
SEVERE THUNDERSTORM IS EXPECTED TO MOVE OVER PARTS OF GLOUCESTER
AND CAMDEN COUNTIES DURING THE NEXT 30 TO 45 MINUTES. THE
SEVERE THUNDERSTORM IS MOVING TO THE NORTH AROUND 35 MPH.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN THE WARNED AREA...PREPARE
FOR STRONG DAMAGING WINDS...HAIL...VERY HEAVY RAIN AND LIGHTNING.
SHOULD THE STORM APPROACH YOU...SEEK IMMEDIATE SHELTER
INDOORS...BUT DO NOT STAND NEAR WINDOWS.  MOBILE HOMES ARE MOST
VULNERABLE TO HIGH WINDS AND SHOULD BE AVOIDED.
 
$$
 
IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 28, 7:35 AM ESTSevere Thunderstorm WarningPHISalem30 min
Nov 28, 8:10 AM ESTSevere Thunderstorm WarningPHIBurlington35 min
Nov 28, 8:14 AM ESTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cape May61 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1993Every severe thunderstorm warning in 1993

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.