Alert archive / New Jersey / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 40, NWS Philadelphia/Mount Holly

June 27, 1994Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 27, 1994, 1:22 PM EDT for Gloucester County, New Jersey. It was in force for 38 min.

The area

The counties it named.

The facts

Issued
Jun 27, 1994, 1:22 PM EDT (17:22 UTC)
Expired
Jun 27, 1994, 2:00 PM EDT
In force
38 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Gloucester County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 5.4 hours before the alert went out and 63 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 1994-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 935 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 1994-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
935 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 271724 RRA
SVRPHL
NJC015-271800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
122 PM EDT MON JUN 27 1994
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH NEW JERSEY
 
   ...GLOUCESTER COUNTY
 
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A SEVERE THUNDERSTORM
NEAR DARETOWN IN SALEM COUNTY. THE SEVERE THUNDESTORM IS MOVING TO THE
NORTH NORTHEAST AT 50 MPH AND WILL PASS THROUGH GLOUCESTER COUNTY
BY 2 PM.
 
 
A SEVERE THUNDERSTORM WATCH CONTINUES FOR SOUTHEASTERN
PENNSYLVANIA AND SOUTHERN NEW JERSEY UNTIL 8 PM EDT.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCED WARNING.
 
 
GCH

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 27, 1:12 PM EDTSevere Thunderstorm WarningPHISalem33 min
Jun 27, 1:14 PM EDTSevere Thunderstorm WarningPHICumberland61 min
Jun 27, 1:34 PM EDTSevere Thunderstorm WarningPHICamden26 min
Jun 27, 1:42 PM EDTSevere Thunderstorm WarningPHIAtlantic63 min
Jun 27, 1:48 PM EDTSevere Thunderstorm WarningPHIBurlington42 min
Jun 27, 2:57 PM EDTSevere Thunderstorm WarningPHICape May63 min
Jun 27, 3:13 PM EDTSevere Thunderstorm WarningPHICumberland62 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.