Alert archive / New Jersey / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 18, 1989, 4:04 PM EST for Burlington County, Camden County, New Jersey. It was in force for 56 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
- Mar 18, 1989, 4:04 PM EST (21:04 UTC)
- Expired
- Mar 18, 1989, 5:00 PM EST
- In force
- 56 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Burlington County, NJ, Camden 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 |
|---|---|---|---|
| Mar 18, 4:05 PM EST | Thunderstorm Wind 96 | Camden, NJ | |
| Mar 18, 4:05 PM EST | 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 12:00Z, 9.1 hours before the alert went out and 51 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1331 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 2 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KPHL 182110
SVRPHL
NJC005-007-182200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA PA
404 PM EST SAT MAR 18 1989
THE NATIONAL WEATHER SERVICE IN PHILADELPHIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 500 PM EST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH NEW JERSEY
...BURLINGTON...CAMDEN
WEATHER SERVICE RADAR AT 400 PM INDICATED A LINE OF SEVERE
THUNDERSTORMS MOVING THROUGH BURLINGTON AND CAMDEN COUNTIES OF
SOUTHERN NEW JERSEY. THE LINE OF THUNDERSTORMS WAS MOVING EAST AT 50
MILES AN HOUR...AND PRODUCED 60 MILE AN HOUR WINDS IN PHILADELPHIA
COUNTY IN SOUTHEASTERN PENNSYLVANIA SHORTLY BEFORE 400 PM.
THESE THUNDERSTORMS SHOULD MOVE EAST OF CAMDEN AND BURLINGTON COUNTIES
BY 500 PM THIS AFTERNOON.
THESE ARE DANGEROUS STORMS. IF YOU ARE IN THE WARNED AREA...BE
PREPARED FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN
AND DANGEROUS LIGHTNING. IF THESE STORMS APPROACH YOU...PLEASE SEEK
IMMEDIATE SHELTER. MOBILE HOMES ARE MOST VULNERABLE TO HIGH WINDS
AND SHOULD BE AVOIDED.
WERTThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 3:51 PM EST | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 69 min |
| Mar 18, 4:18 PM EST | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 57 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 1989Every severe thunderstorm warning in 1989
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.