Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 115, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 29, 2008, 4:11 PM EDT for Mercer County, Middlesex County, Somerset County, New Jersey. It was in force for 64 min. 4 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
- Jun 29, 2008, 4:11 PM EDT (20:11 UTC)
- Expired
- Jun 29, 2008, 5:15 PM EDT
- In force
- 64 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Mercer County, NJ, Middlesex County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 67 km from the middle of the area, began a volume at 20:12 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 |
|---|---|---|---|
| Jun 29, 4:30 PM EDT | HAIL 0.88 | New Brunswick, NJ | NICKEL SIZED HAIL REPORTED IN NEW BRUNSWICK. ALSO, WINDS IN EXCESS OF 58 MPH REPORTED. |
| Jun 29, 4:35 PM EDT | TSTM WND DMG | Highland Park, NJ | POWER LINES REPORTED DOWN IN HIGHLAND PARK AND CRANBURY. MULTIPLE POWER OUTAGES REPORTED ACROSS THE COUNTY. |
| Jun 29, 4:35 PM EDT | HAIL 0.75 | Highland Park, NJ | DIME TO PENNY SIZED HAIL REPORTED IN HIGHLAND PARK. |
| Jun 29, 5:04 PM EDT | TSTM WND DMG | South Brunswick, NJ | MULTIPLE TREES REPORTED DOWN IN SOUTH BRUNSWICK. |
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 |
|---|---|---|---|
| Jun 29, 4:11 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.2 hours before the alert went out and 129 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
- 5 J/kg
- Mixed-layer CIN
- -298 J/kg
- Mixed-layer LCL
- 1853 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- -9 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 292011
SVRPHI
NJC021-023-035-292115-
/O.NEW.KPHI.SV.W.0115.080629T2011Z-080629T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
411 PM EDT SUN JUN 29 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN MERCER COUNTY IN CENTRAL NEW JERSEY...
MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
SOUTHEASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
* UNTIL 515 PM EDT
* AT 407 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
DAYTON...OR ABOUT 10 MILES SOUTHWEST OF NEW BRUNSWICK...AND MOVING
NORTHEAST AT 37 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
EAST BRUNSWICK...NORTH BRUNSWICK AND SOMERSET BY 420 PM...
NEW BRUNSWICK...SOCIETY HILL AND SAYREVILLE BY 425 PM...
EDISON BY 430 PM...
PERTH AMBOY BY 435 PM...
COLONIA AND CARTERET BY 440 PM...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 4054 7424 4050 7425 4025 7446 4033 7467
4067 7442 4066 7440 4064 7440 4059 7444
4060 7430 4059 7428 4060 7422 4059 7420
4057 7420
TIME...MOT...LOC 2011Z 214DEG 32KT 4038 7449
$$
SZATKOWSKI1 follow-up statement
000
WWUS51 KPHI 292049
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
446 PM EDT SUN JUN 29 2008
NJC021-292056-
/O.CAN.KPHI.SV.W.0115.000000T0000Z-080629T2115Z/
MERCER NJ-
446 PM EDT SUN JUN 29 2008
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MERCER COUNTY IS
CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
SUNDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.
LAT...LON 4054 7424 4050 7425 4040 7434 4045 7455
4067 7442 4067 7441 4064 7440 4059 7444
4060 7430 4059 7428 4060 7422 4059 7420
4057 7420
TIME...MOT...LOC 2046Z 214DEG 32KT 4047 7441
$$
NJC023-035-292115-
/O.CON.KPHI.SV.W.0115.000000T0000Z-080629T2115Z/
SOMERSET NJ-MIDDLESEX NJ-
446 PM EDT SUN JUN 29 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHERN MIDDLESEX AND EAST CENTRAL SOMERSET COUNTIES...
AT 443 PM EDT...THE PUBLIC REPORTED WINDS IN EXCESS OF 60 MILES AN
HOUR AND NICKEL SIZE HAIL IN NEW BRUNSWICK. THIS STORM WAS LOCATED
NEAR MILLTOWN...OR NEAR NEW BRUNSWICK...MOVING NORTHEAST AT 37 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
EDISON...METUCHEN...FORDS AND PERTH AMBOY BY 455 PM EDT...
ISELIN...COLONIA...WOODBRIDGE AND SEWAREN BY 500 PM EDT...
AVENEL AND PORT READING BY 505 PM EDT...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM EDT
SUNDAY EVENING FOR NEW JERSEY AND EASTERN PENNSYLVANIA.
LAT...LON 4054 7424 4050 7425 4040 7434 4045 7455
4067 7442 4067 7441 4064 7440 4059 7444
4060 7430 4059 7428 4060 7422 4059 7420
4057 7420
TIME...MOT...LOC 2046Z 214DEG 32KT 4047 7441
$$
SZATKOWSKIThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 1:47 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 29 min |
| Jun 29, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 44 min |
| Jun 29, 3:44 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 46 min |
| Jun 29, 4:56 PM EDT | Flash Flood Warning | PHI | Middlesex | 118 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.