Alert archive / New Jersey / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 4, NWS Philadelphia/Mount Holly

May 10, 1990Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 10, 1990, 7:33 PM EDT for Burlington County, New Jersey. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
May 10, 1990, 7:33 PM EDT (23:33 UTC)
Expired
May 10, 1990, 8:30 PM EDT
In force
57 min
Issued by
NWS Philadelphia/Mount Holly
Area
Whole counties

County Burlington County, NJ

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 12:00Z, 11.6 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 1990-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 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 1990-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 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
39 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
903 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
199 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 102339 COR
SVRACY
NJC005-110030-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
733 PM EDT THU MAY 10 1990

THE NATIONAL WEATHER SERVICE IN ATLANTIC CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM EDT
FOR PEOPLE IN THE FOLLOWING COUNTY...

IN SOUTH NEW JERSEY
          ...BURLINGTON

AT 735 PM EDT ATLANTIC CITY RADAR SHOWED A STRONG THUNDERSTORM NEAR
HAMMONTON NJ. THIS STORM IS MOVING NORTHEAST AT 40 MILES PER HOUR.

THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 6:49 PM EDTSevere Thunderstorm WarningPHIAtlantic, Cumberland56 min
May 10, 7:10 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester35 min
May 10, 7:10 PM EDTSevere Thunderstorm WarningPHISalem35 min
May 10, 7:54 PM EDTSevere Thunderstorm WarningPHIOcean66 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1990Every severe thunderstorm warning in 1990

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.