Alert archive / New Jersey / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 52, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 1, 1998, 1:15 AM EDT for Gloucester County, Salem County, New Jersey. It was in force for 35 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
- Jun 1, 1998, 1:15 AM EDT (05:15 UTC)
- Expired
- Jun 1, 1998, 1:50 AM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
Counties Gloucester County, NJ, Salem County, NJ
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 1, 1:18 AM EDT | Thunderstorm Wind 55 | Harmersville, NJ | |
| Jun 1, 1:18 AM EDT | Thunderstorm Wind 55 | Woodbury, 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.
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 5.3 hours before the alert went out and 191 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
- 1496 J/kg
- Mixed-layer CIN
- -97 J/kg
- Mixed-layer LCL
- 919 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
253 WUUS1 KPHL 010516 RRA SVRPHL NJC007-015-033-PAC101-010550- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 115 AM EDT MON JUN 1 1998 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... PHILADELPHIA COUNTY IN PENNSYLVANIA SALEM COUNTY IN NEW JERSEY GLOUCESTER COUNTY IN NEW JERSEY CAMDEN COUNTY IN NEW JERSEY * UNTIL 150 AM EDT * AT 110 AM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORM IN DELAWARE AND NEW CASTLE COUNTIES...MOVING EAST AT 45 MPH. THE STORMS HAVE A HISTORY OF PRODUCING DAMAGING WINDS. A TORNADO WATCH REMAINS IN EFFECT FOR THE AREA. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. THIS IS A DANGEROUS STORM. MOVE INSIDE A STRONG BUILDING AND DO NOT STAND NEAR WINDOWS. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATIONS...OR YOUR CABLE TELEVISION OUTLET. KRAUS/DELISI
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 8:42 PM EDT | Tornado Warning | PHI | Sussex | 33 min |
| May 31, 10:31 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 19 min |
| May 31, 11:01 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 34 min |
| May 31, 11:24 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 31 min |
| Jun 1, 1:10 AM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex | 50 min |
| Jun 1, 1:15 AM EDT | Severe Thunderstorm Warning | PHI | Camden | 35 min |
| Jun 1, 1:26 AM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 49 min |
| Jun 1, 1:30 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington | 65 min |
| Jun 1, 1:37 AM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 63 min |
| Jun 1, 1:37 AM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 63 min |
| Jun 1, 1:42 AM EDT | Severe Thunderstorm Warning | PHI | Cape May | 48 min |
| Jun 1, 1:44 AM EDT | Severe Thunderstorm Warning | PHI | Mercer | 36 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 1998Every severe thunderstorm warning in 1998
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.