Alert archive / New Jersey / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 114, NWS Philadelphia/Mount Holly

September 27, 1994Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 27, 1994, 5:55 AM EDT for Sussex County, New Jersey. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Sep 27, 1994, 5:55 AM EDT (09:55 UTC)
Expired
Sep 27, 1994, 6:45 AM EDT
In force
50 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Sussex County, NJ

The nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 9.9 hours before the alert went out and 156 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, Brookhaven, NY at 00:00Z on 1994-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Brookhaven, NY at 00:00Z on 1994-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
941 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
102 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 270957 RRA
SVRPHL
NJC037-271045-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
555 AM EDT TUE SEP 27 1994
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  645 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST NEW JERSEY
 
   ...SOUTHERN SUSSEX COUNTY
 
AT 554 AM EDT DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM OVER SOUTHERN
SUSSEX COUNTY AND WAS MOVING NORTH NORTH EAST AT 25 TO 30 MILES AN HOUR.
THIS STORM WILL MAINLY AFFECT THE SOUTHERN PORTION OF SUSSEX COUNTY.
 
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.
 
MR

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 26, 8:07 PM EDTSevere Thunderstorm WarningPHISalem53 min
Sep 27, 5:23 AM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Warren52 min
Sep 27, 1:42 PM EDTSevere Thunderstorm WarningPHIAtlantic48 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.