Alert archive / New Jersey / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 65, NWS Philadelphia/Mount Holly

July 9, 1994Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 9, 1994, 6:03 PM EDT for Camden County, Gloucester County, New Jersey. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1994, 6:03 PM EDT (22:03 UTC)
Expired
Jul 9, 1994, 6:45 PM EDT
In force
42 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, 10.1 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 1994-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 685 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 1994-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 square meters per square second.1939Sfc1 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
685 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
1028 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 092209 COR
SVRPHL
NJC007-015-092245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
603 PM EDT SAT JUL 9 1994

THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTH NEW JERSEY

   ...WESTERN CAMDEN COUNTY...NORTHERN GLOUCESTER COUNTY

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A PAIR OF SEVERE TORM
THUNDERSTORMS WERE DEVELOPING OVER THE DELAWARE RIVER WEST OF WOODBURY
AND ON THE CAMDEN/GLOUCESTER COUNTY LINE JUST TO THE EAST OF DEPTFORD.
A WIND GUST OF 42 MPH WAS JUST RECEIVED FROM DEPTFORD AND THIS
THUNDERSTORM WAS SHOWING SIGNS OF INTENSIFYING.
MOVEMENT WAS TO THE EAST AT 15 TO 20 MPH AND SHOULD MOVE THROUGH
WOODBURY...RUNNEMEDE...SOMERDALE AND SPRINGDALE.

REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
LITTLE OR NO ADVANCED WARNING.
$$
CORRECTION FOR WESTERN CAMDEN

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.