Alert archive / New Jersey / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 37, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 24, 2004, 6:27 PM EDT for Hunterdon County, Mercer County, Somerset County, New Jersey; Bucks County, Pennsylvania. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 24, 2004, 6:27 PM EDT (22:27 UTC)
- Expired
- May 24, 2004, 7:30 PM EDT
- In force
- 63 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
Counties Hunterdon County, NJ, Mercer County, NJ, Somerset County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 68 km from the middle of the area, began a volume at 22:30 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 24, 4:55 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.5 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
- 15 J/kg
- Mixed-layer CIN
- -87 J/kg
- Mixed-layer LCL
- 1572 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 119 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 242227 SVRPHI NJC019-021-035-PAC017-242330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 625 PM EDT MON MAY 24 2004 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN MERCER COUNTY IN CENTRAL NEW JERSEY SOMERSET COUNTY IN NORTHERN NEW JERSEY SOUTHERN HUNTERDON COUNTY IN NORTHWEST NEW JERSEY CENTRAL BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA * UNTIL 730 PM EDT * AT 620 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM. THIS STORM WAS LOCATED NEAR STOCKTON...OR ABOUT 21 MILES NORTHWEST OF TRENTON...AND MOVING EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... STOCKTON BY 635 PM EDT NEW HOPE BY 640 PM EDT 8 MILES SOUTH OF FLEMINGTON BY 655 PM EDT HOPEWELL AND PENNINGTON BY 715 PM EDT LAWRENCEVILLE BY 725 PM EDT PRINCETON AND ROCKY HILL BY 730 PM EDT OTHER THUNDERSTORMS WILL TRACK NORTH TO THE PATHCAST LOCATIONS. LAT...LON 4049 7508 4029 7507 4026 7469 4066 7454 $$ RPW
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 52 min |
| May 24, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 59 min |
| May 24, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | Somerset | 35 min |
| May 24, 7:32 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 43 min |
| May 24, 7:44 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 61 min |
| May 24, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Lehigh | 47 min |
| May 24, 4:46 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 44 min |
| May 24, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery | 53 min |
| May 24, 6:04 PM EDT | Tornado Warning | PHI | Bucks | 26 min |
| May 24, 7:41 PM EDT | Special Marine Warning | PHI | 64 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2004Severe Thunderstorm Warnings in Pennsylvania, 2004Every severe thunderstorm warning in 2004
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; radar from the NEXRAD Level II archive.