Alert archive / New Jersey / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 5, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 18, 1989, 3:51 PM EST for Gloucester County, Salem County, New Jersey. It was in force for 69 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, 3:51 PM EST (20:51 UTC)
- Expired
- Mar 18, 1989, 5:00 PM EST
- In force
- 69 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Gloucester County, NJ, Salem 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, 3:55 PM EST | Tornado F1 | Gloucester, NJ | |
| Mar 18, 4:10 PM EST | Tornado F1 | Gloucester, 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, 8.9 hours before the alert went out and 68 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 182056 RRA
SVRPHL
NJC015-033-182200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHILADELPHIA PA
351 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
...GLOUCESTER...SALEM
WEATHER SERVICE RADAR AND SPOTTER REPORTS AT 345 THIS AFTERNOON
INDICATED SEVERE THUNDERSTORMS WERE MOVING THROUGH GLOUCESTER AND
SALEM COUNTIES IN SOUTHERN NEW JERSEY. SPOTTER REPORTS OF WIND GUSTS
TO 60 MILES AND HOUR AND PEA SIZED HAIL WERE REPORTED IN WESTERN AND
CENTRAL PORTIONS OF GLOUCESTER COUNTY AT 345 PM.
THE THUNDERSTORMS WERE MOVING EAST AT 50 MILES AN HOUR AND SHOULD
MOVE THROUGH GLOUCESTER AND SALEM COUNTIES BY 445 THIS AFTERNOON.
THIS IS A DANGEROUS STORM. IF YOU ARE IN THE WARNED AREA...BE
PREPARED FOR STRONG DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN
AND DANGEROUS LIGHTNING. SHOULD THE STORM APPROACH YOU...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, 4:04 PM EST | Severe Thunderstorm Warning | PHI | Burlington, Camden | 56 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.