Alert archive / New Jersey / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 10, NWS Philadelphia/Mount Holly

June 9, 1993Burlington County, Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 9, 1993, 4:56 PM EDT for Burlington County, Camden County, Gloucester County, New Jersey. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Jun 9, 1993, 4:56 PM EDT (20:56 UTC)
Expired
Jun 9, 1993, 5:45 PM EDT
In force
49 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 8.9 hours before the alert went out and 53 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 1993-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 366 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 1993-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 116 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
366 J/kg
Mixed-layer CIN
-215 J/kg
Mixed-layer LCL
971 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
116 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 092104 COR
SVRPHL
NJC005-007-015-092145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA PA
456 PM EDT WED JUN 9 1993

THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH NEW JERSEY

   ...BURLINGTON COUNTY...CAMDEN COUNTY...GLOUCESTER COUNTY

AT 455 PM RADAR SHOWED A LINE OF VERY STRONG THUNDERSTORMS OVER
SOUTHEAST PENNSYLVANIA. THIS LINE WILL MOVE EAST 45 MPH AND AFFECT
THE SOUTHWESTERN NEW JERSEY COUNTIES WITHIN THE NEXT 15 TO 20 MINUTES.

THESE STORMS HAVE A HISTORY OF LARGE HAIL...VERY HEAVY RAIN...AND
DAMAGING WINDS.

THESE ARE DANGEROUS STORM.  IF YOU ARE IN THE WARNED AREA...PREPARE
FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN AND DEADLY
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.


EBERWINE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 5:50 PM EDTSevere Thunderstorm WarningPHISalem40 min
Jun 9, 6:06 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland69 min
Jun 9, 7:53 PM EDTSevere Thunderstorm WarningPHIBurlington67 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.