Alert archive / New Jersey / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 6, NWS Philadelphia/Mount Holly

June 13, 1987Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 13, 1987, 9:12 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 58 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 13, 1987, 9:12 PM EDT (01:12 UTC)
Expired: Jun 13, 1987, 10:10 PM EDT
In force: 58 min
Issued by: NWS Philadelphia/Mount Holly
Area: Whole counties

Counties Burlington County, NJ, Ocean County, NJ

The radar

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

What was reported inside it

Time	Report	Where
Jun 13, 9:12 PM EDT	Thunderstorm Wind 0	Burlington, NJ
Jun 13, 9:20 PM EDT	Thunderstorm Wind 60	Ocean, NJ
Jun 13, 10:00 PM EDT	Thunderstorm Wind 0	Ocean, NJ

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Atlantic City In, NJ (KACY), launched 00:00Z, 1.2 hours before the alert went out and 47 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1839 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1070 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KACY 140113
SVRACY
NJC005-029-140210-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
912 PM EDT SAT JUN 13 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1010 PM EDT FOR THE FOLLOWING COUNTIES OF
 
SOUTHERN NEW JERSEY... EASTERN BURLINGTON... OCEAN
 
...AND ADJACENT COASTAL WATERS.
                                                                         
AT 905 PM RADAR SHOWED A NARROW LINE OF STRONG THUNDERSTORMS MOVING  
INTO BURLINGTON COUNTY. THIS LINE HAS A HISTORY OF GUSTY WINDS...HAIL 
AND HEAVY RAIN WITH DOWNPOURS THIS EVENING. THE THUNDERSTORMS WILL PASS 
DIRECTLY OVER MCGUIRE AFB AND CONTINUE THROUGH BURLINGTON COUNTY AND 
ONTO OCEAN COUNTY BEFORE 10 PM. 
 
THIS IS A DANGEROUS STORM AND PEOPLE IN THE WARNED AREA SHOULD
PREPARE FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN
AND LIGHTNING.  SHOULD THE STORM APPROACH YOU...SEEK IMMEDIATE
SHELTER.  MOBILE TRAILERS ARE MOST VULNERABLE TO HIGH WINDS AND
SHOULD BE AVOIDED.
 
JAE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 8:51 PM EDT	Severe Thunderstorm Warning	PHI	Mercer	15 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 1987 Every severe thunderstorm warning in 1987

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.