Alert archive / New Jersey / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 197, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 24, 2002, 8:31 PM EDT for Gloucester County, New Jersey. It was in force for 44 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 24, 2002, 8:31 PM EDT (00:31 UTC)
- Expired
- Aug 24, 2002, 9:15 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Gloucester County, NJ
The radar
The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 00:30 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 24, 8:33 PM EDT | Hail 1 | Bells Lake, NJ | |
| Aug 24, 8:50 PM EDT | Hail 1 | Williamstown, NJ | |
| Aug 24, 8:50 PM EDT | Thunderstorm Wind 50 E | Williamstown, 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, 0.5 hours before the alert went out and 200 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
- 1640 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1080 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.5
The text
As transmitted, in the capitals the NWS used until 2016.
085 WUUS51 KPHI 250031 SVRPHI NJC015-250115- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 832 PM EDT SAT AUG 24 2002 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY. * UNTIL 915 PM EDT. * AT 825 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... 4 MILES NORTH OF GLASSBORO...MOVING SOUTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... VICTORY LAKES AT 840 PM. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. $$ LAT...LON 3980 7513 3969 7520 3956 7495 3961 7491
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 8:02 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 58 min |
| Aug 24, 8:26 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 49 min |
| Aug 24, 8:50 PM EDT | Special Marine Warning | PHI | 55 min | |
| Aug 24, 9:40 PM EDT | Special Marine Warning | PHI | 80 min | |
| Aug 24, 9:40 PM EDT | Special Marine Warning | PHI | 80 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2002Every severe thunderstorm warning in 2002
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; radar from the NEXRAD Level II archive.