Alert archive / New Jersey / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 53, NWS Philadelphia/Mount Holly

June 29, 1994Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 29, 1994, 9:50 PM EDT for Burlington County, New Jersey. It was in force for 40 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1994, 9:50 PM EDT (01:50 UTC)
Expired
Jun 29, 1994, 10:30 PM EDT
In force
40 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Burlington County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 00:00Z, 1.8 hours before the alert went out and 50 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 00:00Z on 1994-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1176 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 00:00Z on 1994-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 120 square meters per square second.19395878Sfc1 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
1176 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
120 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KPHL 300153 RRA
SVRPHL
NJC005-300230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
950 PM EDT WED JUN 29 1994
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH NEW JERSEY
 
   ...CENTRAL AND SOUTHERN BURLINGTON COUNTY
 
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN INTENSIFYING
SEVERE THUNDERSTORM WAS LOCATED IN SOUTHERN CAMDEN COUNTY NEAR
ATCO.  THIS THUNDERSTORM HAS HAD A HISTORY OF PRODUCING LARGE HAIL
AND STRONG GUSTY WINDS.
 
MOVEMENT WAS EAST AT 35 MILES AN HOUR AND SHOULD MOVE THROUGH TABERNACLE
AND PEMBERTON DURING THE NEXT 45 MINUTES.
 
THIS IS A 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.
 
A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR SOUTHERN NEW JERSEY UNTIL
1 AM EDT.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 9:26 PM EDTSevere Thunderstorm WarningPHICamden49 min
Jun 29, 9:26 PM EDTSevere Thunderstorm WarningPHIGloucester39 min
Jun 29, 10:19 PM EDTSevere Thunderstorm WarningPHIOcean41 min
Jun 30, 5:03 PM EDTSevere Thunderstorm WarningPHICumberland42 min
Jun 30, 5:43 PM EDTSevere Thunderstorm WarningPHIMercer47 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1994Every severe thunderstorm warning in 1994

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.