Alert archive / New Jersey / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 132, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Dec 17, 2000, 11:47 AM EST for Mercer County, Middlesex County, New Jersey. It was in force for 28 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Dec 17, 2000, 11:47 AM EST (16:47 UTC)
- Expired
- Dec 17, 2000, 12:15 PM EST
- In force
- 28 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Mercer County, NJ, Middlesex County, NJ
The radar
The Philadelphia radar (KDIX), 46 km from the middle of the area, began a volume at 16:50 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 |
|---|---|---|---|
| Dec 17, 11:55 AM EST | Thunderstorm Wind 50 E | Countywide, 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 12:00Z, 4.8 hours before the alert went out and 149 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
- 313 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 453 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- 582 m²/s²
- 0-3 km storm-relative helicity
- 603 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 171648 SVRPHL NJC021-023-171715- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 1147 AM EST SUN DEC 17 2000 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL MERCER COUNTY IN CENTRAL NEW JERSEY. SOUTHERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY. * UNTIL 1215 PM EST. * AT 1145 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM... 4 MILES SOUTHWEST OF TWIN RIVERS...MOVING NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... TWIN RIVERS AT 1155 AM. CLEARBROOK PARK AT NOON. DAYTON...JAMESBURG AT 1205 PM. NORTH BRUNSWICK AT 1210 PM. EAST BRUNSWICK...NEW BRUNSWICK...OLD BRIDGE...SAYREVILLE AT 1215 PM. TORNADOES CAN OCCUR WITH LITTLE OR NO ADVANCED WARNING. FOR THE LATEST STORM INFORMATION...PLEASE TUNE TO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. LAT...LON 4030 7465 4020 7451 4048 7422 4050 7443
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 6:55 AM EST | Flash Flood Warning | PHI | Hunterdon, Warren | 3 hr |
| Dec 17, 7:42 AM EST | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Mercer | 3 hr |
| Dec 17, 7:55 AM EST | Severe Thunderstorm Warning | PHI | Burlington, Camden | 35 min |
| Dec 17, 9:25 AM EST | Severe Thunderstorm Warning | PHI | Salem | 35 min |
| Dec 17, 10:20 AM EST | Flash Flood Warning | PHI | Sussex | 3 hr |
| Dec 17, 11:01 AM EST | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Mercer | 3 hr |
| Dec 17, 11:16 AM EST | Flash Flood Warning | PHI | Warren | 3 hr |
| Dec 17, 11:50 AM EST | Flash Flood Warning | PHI | Middlesex, Somerset | 3 hr |
| Dec 17, 12:26 PM EST | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 34 min |
| Dec 17, 12:49 PM EST | Severe Thunderstorm Warning | PHI | Monmouth | 26 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2000Every severe thunderstorm warning in 2000
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.