Alert archive / Delaware / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 131, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Dec 17, 2000, 9:25 AM EST for New Castle County, Delaware; Salem County, New Jersey. It was in force for 35 min. No storm report in the archive falls 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.
The facts
- Issued
- Dec 17, 2000, 9:25 AM EST (14:25 UTC)
- Expired
- Dec 17, 2000, 10:00 AM EST
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties New Castle County, DE, Salem County, NJ
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 17, 7:00 AM EST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 2.4 hours before the alert went out and 162 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
- 483 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 171426 SVRPHL DEC003-NJC033-171500- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 925 AM EST SUN DEC 17 2000 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN NEW CASTLE COUNTY IN NORTHERN DELAWARE. SOUTHWESTERN SALEM COUNTY IN SOUTHERN NEW JERSEY. * UNTIL 1000 AM EST. * AT 920 AM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM...17 MILES SOUTHWEST OF DELAWARE CITY... MOVING NORTHEAST AT 50 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DELAWARE CITY...SALEM AT 940 AM. FOR THE LATEST STORM INFORMATION...PLEASE TUNE ThO NOAA WEATHER RADIO...YOUR LOCAL RADIO OR TELEVISION STATION...OR YOUR CABLE TELEVISION OUTLET. LAT...LON 3936 7578 3930 7568 3949 7536 3965 7556
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 7:03 AM EST | Flash Flood Warning | PHI | New Castle | 3 hr |
| Dec 17, 10:00 AM EST | Flash Flood Warning | PHI | New Castle | 3 hr |
| 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, 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, 11:47 AM EST | Severe Thunderstorm Warning | PHI | Mercer, Middlesex | 28 min |
| 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 Delaware, 2000Severe 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; the sounding from the Mesonet's radiosonde archive.