Alert archive / New Jersey / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 60, NWS Philadelphia/Mount Holly

July 3, 1994Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 3, 1994, 2:39 PM EDT for Atlantic County, New Jersey. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Jul 3, 1994, 2:39 PM EDT (18:39 UTC)
Expired
Jul 3, 1994, 3:45 PM EDT
In force
66 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Atlantic County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 6.7 hours before the alert went out and 12 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 1994-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 402 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 1994-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
402 J/kg
Mixed-layer CIN
-102 J/kg
Mixed-layer LCL
1235 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS1 KACY 031839 RRA
SVRACY
NJC001-031945-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
239 PM EDT SUN JUL 3 1994
 
THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH NEW JERSEY
 
   ...ATLANTIC COUNTY
 
AND THE ADJACENT COASTAL WATERS
 
 
AT 235 PM...RADAR INDICATED A SEVERE THUNDERSTORM OVER ATLANTIC COUNTY 6
MILES NORTHWEST OF THE AC AIRPORT. MOVEMENT WAS SOUTH AT 5 MPH.
 
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 2:05 PM EDTSevere Thunderstorm WarningPHIBurlington, Ocean55 min
Jul 3, 2:52 PM EDTSevere Thunderstorm WarningPHIBurlington53 min
Jul 3, 3:26 PM EDTFlash Flood WarningPHIGloucester64 min
Jul 3, 3:26 PM EDTSevere Thunderstorm WarningPHIGloucester64 min
Jul 3, 3:42 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland63 min
Jul 3, 3:44 PM EDTFlash Flood WarningPHISalem61 min
Jul 3, 3:44 PM EDTSevere Thunderstorm WarningPHISalem61 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.