Alert archive / New Jersey / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 49, NWS Philadelphia/Mount Holly

August 11, 1992Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 11, 1992, 3:56 PM EDT for Burlington County, New Jersey. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Aug 11, 1992, 3:56 PM EDT (19:56 UTC)
Expired
Aug 11, 1992, 5:00 PM EDT
In force
64 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 12:00Z, 7.9 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 12:00Z on 1992-08-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 757 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 1992-08-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
757 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1177 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPHL 112006 COR
SVRPHL
NJC005-112100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE PHILADELPHIA PA
405 PM EDT TUE AUG 11 1992
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH NEW JERSEY
 
   ...BURLINGTON COUNTY
 
AT 355 PM...NATIONAL WEATHER SERVICE RADAR SHOWED A LINE OF STRONG
THUNDERSTORMS MOVING SOUTHEASTWARD ACROSS THE DELAWARE RIVER INTO
BURLINGTON COUNTY. THESE STORMS HAVE PRODUCED WIND GUSTS TO NEAR 60 MPH
IN PORTIONS OF SOUTHEASTERN PENNSYLVANIA.
 
IN ADDITION...THUNDERSTORMS ALREADY IN BURLINGTON COUNTY HAVE PRODUCED
WIND GUSTS TO NEAR 50 MPH NEAR MOUNT HOLLY.
 
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 CONTINUES FOR SOUTHEASTERN
PENNSYLVANIA AND SOUTHERN NEW JERSEY UNTIL 800 PM EDT.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCED WARNING.
 
KRAUS
 
CORRECTION IN LAST PARAGRAPH. SEVERE THUNDERSTORM WATCH IN EFFECT TIL 8
PM.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 4:24 PM EDTSevere Thunderstorm WarningPHIAtlantic, Ocean66 min
Aug 11, 4:24 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester36 min
Aug 11, 4:36 PM EDTSevere Thunderstorm WarningPHICumberland69 min
Aug 11, 4:55 PM EDTSevere Thunderstorm WarningPHIBurlington65 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1992Every severe thunderstorm warning in 1992

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.