Alert archive / New Jersey / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 2, NWS Philadelphia/Mount Holly

April 4, 1995Warren County, New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 4, 1995, 1:11 PM EDT for Warren County, New Jersey; Northampton County, Pennsylvania. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Apr 4, 1995, 1:11 PM EDT (17:11 UTC)
Expired
Apr 4, 1995, 2:00 PM EDT
In force
49 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

Counties Warren County, NJ, Northampton County, PA

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 5.2 hours before the alert went out and 193 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 12:00Z on 1995-04-04Temperature 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 12:00Z on 1995-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 square meters per square second.1939587897117136Sfc1 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
1146 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
241 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 
WUUS1 KPHL 041713 RRA
SVRPHL
NJC037-041-PAC095-041800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA/MOUNT HOLLY NJ
111 PM EDT TUE APR 4 1995
 
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA/MOUNT HOLLY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  200 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  NEW JERSEY
 
   ...SUSSEX COUNTY...WARREN COUNTY
 
IN  PENNSYLVANIA
 
   ...NORTHAMPTON COUNTY
 
AT 1:00 PM...WEATHER SERVICE RADAR AT MT. HOLLY...NEW JERSEY INDICATED A
LINE OF STRONG TO SEVERE THUNDERSTORMS EXTENDING FROM THE EXTREME
NORTHERN NEW JERSEY/PENNSYLVANIA BORDER SOUTHWEST THROUGH ALLENTOWN.
THIS LINE IS MOVING EAST AT AROUND 45 MPH. AT 1:00 PM... THE WEATHER
SERVICE OFFICE IN ALLENTOWN REPORTED A WIND GUST TO 54 MPH. LARGE TREES
WERE REPORTED DOWN IN PIKE COUNTY DURING THE PAST FEW MINUTES.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN THE WARNED AREA...PREPARE
FOR STRONG DAMAGING WINDS...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.
 
AMC
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 1:11 PM EDTSevere Thunderstorm WarningPHISussex49 min
Apr 4, 1:25 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset50 min
Apr 4, 2:10 PM EDTSevere Thunderstorm WarningPHIMiddlesex35 min
Apr 4, 2:35 PM EDTSevere Thunderstorm WarningPHIMonmouth40 min
Apr 4, 12:05 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe40 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1995Severe Thunderstorm Warnings in Pennsylvania, 1995Every severe thunderstorm warning in 1995

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.