Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 198, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 2, 2008, 12:06 PM EDT for 5 counties in New Jersey. It was in force for 54 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 2, 2008, 12:06 PM EDT (16:06 UTC)
- Expired
- Aug 2, 2008, 1:00 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 52 km from the middle of the area, began a volume at 16:09 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, 12:19 PM EDT | TSTM WND DMG | Hopewell, NJ | TREE DOWN IN HOPEWELL TWP. |
| Aug 2, 12:23 PM EDT | TSTM WND DMG | 5 N Princeton, NJ | TREE DOWN IN MONTGOMERY TWP. |
| Aug 2, 12:28 PM EDT | HAIL 0.25 | Kendall Park, NJ | PEA SIZE HAIL IN KENDALL PARK. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 2, 10:39 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 4.1 hours before the alert went out and 150 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
- 84 J/kg
- Mixed-layer CIN
- -66 J/kg
- Mixed-layer LCL
- 1436 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 65 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 021606
SVRPHI
NJC019-021-023-025-035-021700-
/O.NEW.KPHI.SV.W.0198.080802T1606Z-080802T1700Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1206 PM EDT SAT AUG 2 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN MERCER COUNTY IN CENTRAL NEW JERSEY...
CENTRAL MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
SOUTHERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
EXTREME SOUTH CENTRAL HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 100 PM EDT
* AT 1204 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
HOPEWELL...OR ABOUT 12 MILES NORTH OF TRENTON...AND MOVING EAST AT
28 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
PRINCETON BY 1215 PM...
ROCKY HILL BY 1220 PM...
SOUTH BRUNSWICK AND KENDALL PARK BY 1230 PM...
DAYTON BY 1235 PM...
NORTH BRUNSWICK AND JAMESBURG BY 1240 PM...
EAST BRUNSWICK AND NEW BRUNSWICK BY 1245 PM...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM SATURDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
SOUTHEASTERN PENNSYLVANIA.
LAT...LON 4030 7430 4031 7491 4035 7491 4039 7481
4041 7479 4042 7475 4040 7475 4054 7425
4053 7423 4047 7426 4044 7422
TIME...MOT...LOC 1606Z 266DEG 24KT 4040 7476
$$
MPD1 follow-up statement
000
WWUS51 KPHI 021632
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1232 PM EDT SAT AUG 2 2008
NJC019-021641-
/O.CAN.KPHI.SV.W.0198.000000T0000Z-080802T1700Z/
HUNTERDON NJ-
1231 PM EDT SAT AUG 2 2008
...THE SEVERE THUNDERSTORM WARNING FOR EXTREME SOUTH CENTRAL
HUNTERDON COUNTY IS CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND SOUTHEASTERN PENNSYLVANIA.
TREES AND WIRES WERE REPORTED DOWN IN MILFORD AND HOLLAND TOWNSHIPS
WITH THE STORM.
LAT...LON 4030 7430 4031 7472 4035 7465 4040 7462
4041 7463 4043 7463 4054 7425 4053 7423
4047 7426 4043 7422
TIME...MOT...LOC 1631Z 266DEG 24KT 4041 7454
$$
NJC021-023-025-035-021700-
/O.CON.KPHI.SV.W.0198.000000T0000Z-080802T1700Z/
SOMERSET NJ-MERCER NJ-MIDDLESEX NJ-MONMOUTH NJ-
1231 PM EDT SAT AUG 2 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 PM EDT
FOR NORTH CENTRAL MONMOUTH...CENTRAL MIDDLESEX...NORTH CENTRAL MERCER
AND SOUTHEASTERN SOMERSET COUNTIES...
AT 1228 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR KENDALL PARK...OR 8 MILES SOUTHWEST OF NEW BRUNSWICK...
MOVING EAST AT 28 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
NORTH BRUNSWICK...JAMESBURG AND ROSSMOOR BY 1240 PM EDT...
EAST BRUNSWICK...MILLTOWN...HELMETTA AND NEW BRUNSWICK BY 1245 PM
EDT...
SPOTSWOOD AND SOUTH RIVER BY 1250 PM EDT...
MADISON PARK BY 1255 PM EDT...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
DAMAGING WINDS THAT DOWNED TREES AND WIRES IN HUNTERDON COUNTY WERE
REPORTED WITH THIS STORM. THIS IS A DANGEROUS STORM...SEEK SAFE
SHELTER AND STAY AWAY FROM WINDOWS
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT
SATURDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 4030 7430 4031 7472 4035 7465 4040 7462
4041 7463 4043 7463 4054 7425 4053 7423
4047 7426 4043 7422
TIME...MOT...LOC 1631Z 266DEG 24KT 4041 7454
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 6:55 AM EDT | Special Marine Warning | PHI | 65 min | |
| Aug 2, 7:20 AM EDT | Special Marine Warning | PHI | 115 min | |
| Aug 2, 7:40 AM EDT | Severe Thunderstorm Warning | PHI | Cape May | 65 min |
| Aug 2, 8:08 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 52 min |
| Aug 2, 8:31 AM EDT | Special Marine Warning | PHI | 119 min | |
| Aug 2, 9:22 AM EDT | Special Marine Warning | PHI | 24 min | |
| Aug 2, 10:51 AM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Aug 2, 11:31 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Somerset | 59 min |
| Aug 2, 12:54 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 66 min |
| Aug 2, 1:22 PM EDT | Special Marine Warning | PHI | 53 min | |
| Aug 2, 4:35 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 55 min |
| Aug 2, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 65 min |
| Aug 2, 5:50 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 55 min |
| Aug 2, 5:58 PM EDT | Special Marine Warning | PHI | 62 min | |
| Aug 2, 6:19 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 56 min |
| Aug 2, 6:35 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Warren | 26 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2008Every severe thunderstorm warning in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.