Alert archive / New Jersey / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 39, NWS Philadelphia/Mount Holly

August 9, 1987Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 9, 1987, 11:43 PM EDT for Burlington County, Ocean County, New Jersey. It was in force for 62 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: Aug 9, 1987, 11:43 PM EDT (03:43 UTC)
Expired: Aug 10, 1987, 12:45 AM EDT
In force: 62 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
Aug 9, 11:43 PM EDT	Thunderstorm Wind 0	Burlington, NJ
Aug 10, 12:10 AM EDT	Thunderstorm Wind 0	Ocean, NJ
Aug 10, 12:20 AM EDT	Thunderstorm Wind 0	Burlington, 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, 3.7 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: 2260 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 839 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KACY 100351
SVRACY
NJC005-029-100445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE ATLANTIC CITY NJ
1143 PM EDT SUN AUG 9 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM AND
SPECIAL MARINE WARNING EFFECTIVE UNTIL 1245 AM EDT FOR PEOPLE IN THE
FOLLOWING COUNTIES OF

NEW JERSEY...NORTHEAST BURLINGTON AND CENTRAL OCEAN
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTIES JUST MENTIONED

AT 1140 PM EDT RADAR WAS SHOWING A SEVERE THUNDERSTORM NEAR
PEMBERTON NEW JERSEY AND MOVING EAST AT 25 TO 30 MPH.

IF YOU ARE IN AN AREA THREATENED BY THE STORM..GO TO A REINFORCED
SHELTER AND PREPARE FOR DAMAGING WINzD...LARGE HAIL...VERY HEAVY
RAIN AND LIGHTNING.

REMEMBER...SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING SO BE ON THE LOOKOUT.

RWK

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 9:08 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	67 min
Aug 9, 11:12 PM EDT	Severe Thunderstorm Warning	PHI	Burlington	48 min
Aug 10, 2:18 AM EDT	Flash Flood Warning	PHI	Mercer	4 hr

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.