Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 80, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 7, 2012, 6:25 PM EDT for Hunterdon County, Somerset County, Warren County, New Jersey. It was in force for 37 min. 2 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
- Jul 7, 2012, 6:25 PM EDT (22:25 UTC)
- Expired
- Jul 7, 2012, 7:02 PM EDT
- In force
- 37 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Somerset County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 93 km from the middle of the area, began a volume at 22:25 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 |
|---|---|---|---|
| Jul 7, 6:35 PM EDT | TSTM WND DMG | Flemington, NJ | TREES DOWN |
| Jul 7, 6:45 PM EDT | TSTM WND DMG | Skillman, NJ | TREES DOWN. |
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 |
|---|---|---|---|
| Jul 7, 11:41 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 7, 6:14 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.4 hours before the alert went out and 171 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
- 335 J/kg
- Mixed-layer CIN
- -291 J/kg
- Mixed-layer LCL
- 1325 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
679
WUUS51 KPHI 072225
SVRPHI
NJC019-035-041-072330-
/O.NEW.KPHI.SV.W.0080.120707T2225Z-120707T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
625 PM EDT SAT JUL 7 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOMERSET COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF SOMERVILLE...
HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
SOUTHERN WARREN COUNTY IN NORTHWEST NEW JERSEY...
* UNTIL 730 PM EDT
* AT 621 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM HARMONY TO 6 MILES WEST OF
CLINTON TO 12 MILES WEST OF FLEMINGTON TO 16 MILES WEST OF
FLEMINGTON...AND MOVING SOUTHEAST AT 40 MPH.
* SEVERE THUNDERSTORMS WILL BE NEAR...
PLEASANT VALLEY...BRASS CASTLE AND WASHINGTON AROUND 630 PM EDT...
HAMPTON...GLEN GARDNER AND FLEMINGTON AROUND 635 PM EDT...
ANNANDALE...HIGH BRIDGE AND CLINTON AROUND 640 PM EDT...
LEBANON AROUND 645 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...LARGE HAIL...AND DEADLY CLOUD TO
GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
SATURDAY EVENING FOR NORTHERN NEW JERSEY AND EASTERN PENNSYLVANIA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SUNDAY MORNING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND SOUTHEASTERN PENNSYLVANIA.
&&
LAT...LON 4051 7448 4037 7461 4039 7467 4048 7487
4077 7518 4077 7513 4083 7508 4085 7510
4086 7505 4090 7508 4091 7505 4080 7487
4078 7488 4074 7483 4074 7479
TIME...MOT...LOC 2224Z 300DEG 35KT 4073 7509 4059 7498
4047 7505 4042 7512
$$
HAYES2 follow-up statements
285
WWUS51 KPHI 072243
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
643 PM EDT SAT JUL 7 2012
NJC019-035-041-072330-
/O.CON.KPHI.SV.W.0080.000000T0000Z-120707T2330Z/
WARREN NJ-HUNTERDON NJ-SOMERSET NJ-
643 PM EDT SAT JUL 7 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR SOMERSET...HUNTERDON AND SOUTHERN WARREN COUNTIES...
AT 638 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM 15 MILES EAST OF EASTON TO
12 MILES WEST OF SOMERVILLE TO 14 MILES NORTHWEST OF TRENTON...
MOVING SOUTHEAST AT 40 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
WHITE HOUSE STATION AND SKILLMAN BY 650 PM EDT...
BELLE MEAD AND ROCKY HILL BY 655 PM EDT...
RARITAN...BRIDGEWATER...FLAGTOWN AND KINGSTON BY 700 PM EDT...
MANVILLE AND SOMERVILLE BY 705 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 700 PM EDT
SATURDAY EVENING FOR NORTHERN NEW JERSEY AND EASTERN PENNSYLVANIA. A
SEVERE THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SUNDAY MORNING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND SOUTHEASTERN PENNSYLVANIA.
&&
LAT...LON 4042 7456 4042 7459 4037 7461 4048 7487
4077 7518 4077 7513 4083 7508 4085 7510
4086 7505 4090 7508 4091 7505 4080 7487
4079 7489 4074 7483 4074 7479 4051 7448
TIME...MOT...LOC 2243Z 300DEG 35KT 4063 7488 4049 7478
4037 7485 4032 7492
$$
HAYES779
WWUS51 KPHI 072302
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
702 PM EDT SAT JUL 7 2012
NJC019-035-041-072312-
/O.CAN.KPHI.SV.W.0080.000000T0000Z-120707T2330Z/
WARREN NJ-HUNTERDON NJ-SOMERSET NJ-
702 PM EDT SAT JUL 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOMERSET...HUNTERDON AND
SOUTHERN WARREN COUNTIES IS CANCELLED...
THE STORMS THAT PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
SUNDAY MORNING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND NEW
JERSEY AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 4042 7456 4042 7459 4037 7461 4048 7487
4077 7518 4077 7513 4083 7508 4085 7510
4086 7505 4090 7508 4091 7505 4080 7487
4079 7489 4074 7483 4074 7479 4051 7448
TIME...MOT...LOC 2302Z 300DEG 35KT 4053 7467 4039 7458
4027 7465 4022 7472
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 12:30 PM EDT | Special Weather Statement | PHI | Morris, Sussex | 90 min |
| Jul 7, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Warren | 63 min |
| Jul 7, 6:54 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Ocean, Somerset | 46 min |
| Jul 7, 7:03 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Gloucester | 57 min |
| Jul 7, 7:22 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 53 min |
| Jul 7, 7:24 PM EDT | Special Marine Warning | PHI | 96 min | |
| Jul 7, 7:42 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 63 min |
| Jul 7, 7:55 PM EDT | Special Weather Statement | PHI | Atlantic | 65 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2012Every severe thunderstorm warning in 2012
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.