Alert archive / New Jersey / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 16, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 12, 2004, 4:05 PM EDT for Middlesex County, New Jersey. It was in force for 55 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 12, 2004, 4:05 PM EDT (20:05 UTC)
- Expired
- May 12, 2004, 5:00 PM EDT
- In force
- 55 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Counties, with a storm outline in the text
County Middlesex County, NJ
The radar
The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 20:05 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 nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.1 hours before the alert went out and 130 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
- 1624 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 74 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
870
WUUS51 KPHI 122005
SVRPHI
NJC023-122100-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
404 PM EDT WED MAY 12 2004
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY
THIS INCLUDES THE CITIES OF...PERTH AMBOY...NEW BRUNSWICK
* UNTIL 500 PM EDT
* AT 400 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
RAPIDLY DEVELOPING SEVERE THUNDERSTORM CAPABLE OF PRODUCING
QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR SOCIETY HILL...
OR ABOUT OVER NEW BRUNSWICK...AND MOVING EAST AT 20 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
EDISON BY 420 PM EDT
COLONIA AND PERTH AMBOY BY 440 PM EDT
CARTERET BY 455 PM EDT
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR GUSTY WINDS...DESTRUCTIVE HAIL...DEADLY CLOUD
TO GROUND LIGHTNING AND HEAVY DOWNPOURS PRODUCING POOR DRAINAGE
FLOODING AND FLOODING OF ROADWAYS. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4057 7421 4054 7424 4049 7427 4046 7449
4049 7444 4052 7449 4056 7453 4059 7447
4059 7431 4058 7428 4059 7421
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 1:57 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 48 min |
| May 12, 2:26 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex | 19 min |
| May 12, 3:29 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 31 min |
| May 12, 4:31 PM EDT | Severe Thunderstorm Warning | PHI | Somerset | 44 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 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.