Alert archive / New Jersey / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 21, NWS New York, NY

June 20, 1993Morris County, Warren County, New Jersey

NWS New York, NY issued this severe thunderstorm warning at Jun 20, 1993, 8:26 PM EDT for Morris County, Warren County, New Jersey. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Jun 20, 1993, 8:26 PM EDT (00:26 UTC)
Expired
Jun 20, 1993, 9:30 PM EDT
In force
64 min
Issued by
NWS New York, NY
Area
Whole counties

Counties Morris County, NJ, Warren County, NJ

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 00:00Z, 0.4 hours before the alert went out and 158 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 00:00Z on 1993-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 335 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 00:00Z on 1993-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
335 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
1172 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
82 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 KNYC 210028
SVRNYC
NJC027-041-210130-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NEW YORK NY
826 PM EDT SUN JUN 20 1993
 
THE NATIONAL WEATHER SERVICE IN NEW YORK HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTH CENTRAL NEW JERSEY
 
   ...MORRIS COUNTY
 
IN NORTHWEST NEW JERSEY
 
   ...WARREN COUNTY
 
A LINE OF THUNDERSTORMS WILL BE THROUGH WARREN AND MORRIS COUNTIES
BETWEEN 830 PM AND 930 PM. THESE THUNDERSTORMS COULD PRODUCE STRONG
GUSTY WINDS...HEAVY RAIN AND POSSIBLE HAIL.
 
THESE STORMS WERE MOVING TO THE EAST AT AROUND 25 TO 30 MPH.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
ES/MAC

The office that day

Everything else NWS New York, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 5:54 PM EDTTornado WarningOKXMorris, Somerset51 min
Jun 21, 6:23 PM EDTSevere Thunderstorm WarningOKXEssex, Union52 min
Jun 21, 6:50 PM EDTSevere Thunderstorm WarningOKXHudson55 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1993Every severe thunderstorm warning in 1993

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.