Alert archive / New Jersey / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 171, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 2, 2002, 11:25 PM EDT for Burlington County, New Jersey. It was in force for 65 min. 1 report 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 2, 2002, 11:25 PM EDT (03:25 UTC)
- Expired
- Aug 3, 2002, 12:30 AM EDT
- In force
- 65 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties
County Burlington County, NJ
The radar
The Philadelphia radar (KDIX), 23 km from the middle of the area, began a volume at 03:25 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 2, 11:30 PM EDT | Thunderstorm Wind 50 E | Medford Lakes, 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
Brookhaven, NY (KOKX), launched 00:00Z, 3.4 hours before the alert went out and 188 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
- 2399 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
004 WUUS51 KPHI 030325 SVRPHI NJC005-030430- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1124 PM EDT FRI AUG 2 2002 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BURLINGTON COUNTY IN SOUTHERN NEW JERSEY. * UNTIL 1230 AM EDT. * AT 1120 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... 6 MILES SOUTHEAST OF MARLTON...MOVING SOUTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LEISURETOWNE AT 1135 PM. BROWNS MILLS AT 1140 PM. PRESIDENTIAL LAKES AT 1150 PM. WHARTON STATE FOREST AT MIDNIGHT. CHATSWORTH AT 1205 AM. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. $$ LAT...LON 3994 7500 3962 7461 3980 7441 4014 7471
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:01 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 29 min |
| Aug 2, 8:09 PM EDT | Severe Thunderstorm Warning | PHI | Somerset | 66 min |
| Aug 2, 8:32 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 43 min |
| Aug 2, 8:38 PM EDT | Special Marine Warning | PHI | 67 min | |
| Aug 2, 8:40 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 65 min |
| Aug 2, 9:18 PM EDT | Special Marine Warning | PHI | 87 min | |
| Aug 2, 9:55 PM EDT | Special Marine Warning | PHI | 65 min | |
| Aug 2, 10:45 PM EDT | Special Marine Warning | PHI | 90 min | |
| Aug 2, 10:45 PM EDT | Special Marine Warning | PHI | 90 min | |
| Aug 3, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester | 53 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.