Alert archive / New Jersey / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 35, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 9, 1987, 9:08 PM EDT for Burlington County, New Jersey. It was in force for 67 min. 2 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, 9:08 PM EDT (01:08 UTC)
- Expired
- Aug 9, 1987, 10:15 PM EDT
- In force
- 67 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 9, 9:10 PM EDT | Thunderstorm Wind 52 | Burlington, NJ | |
| Aug 9, 9:30 PM 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, 1.1 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.
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPHL 100110 COR SVRPHL NJC005-100215- BULLETIN - IMMEDIATE BROADCAST REQUESTED...CORRECTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHILADELPHIA PA 908 PM EDT SUN AUG 9 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM EDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTHWEST NEW JERSEY...WESTERN BURLINGTON AT 9 PM EDT RADAR INDICATED A SEVERE THUNDERSTORM ON THE BORDER OF CAMDEN AND BURLINGTON COUNTY AND MOVING EASTNORTHEAST AROUND 30 MILES AN HOUR. AT 9 PM A WEATHER SPOTTER FROM MARLTON IN BURLINGTON COUNTY ESTIMATED WINDS OF AROUND 60 MILES AN HOUR IN THIS THUNDERSTORM. THIS IS A DANGEROUS STORM AND PEOPLE IN THE WARNED AREA SHOULD BE PREPARED FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN AND LIGHTNING. SHOULD THE STORM APPROACH YOU...SEEK IMMEDIATE SHELTER. MOBILE HOMES ARE MOST VULNERABLE TO HIGH WINDS AND SHOULD BE AVOIDED. A SEVERE THUNDERSTORM WATCH CONTINUES FOR THE AREA UNTIL 11 PM EDT ACS
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 11:12 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 48 min |
| Aug 9, 11:43 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 62 min |
| Aug 10, 2:18 AM EDT | Flash Flood Warning | PHI | Mercer | 4 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 1987Every 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.