Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 156, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 2012, 6:23 PM EDT for Hunterdon County, Mercer County, New Jersey; Bucks County, Philadelphia County, Pennsylvania. It was in force for 43 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 3, 2012, 6:23 PM EDT (22:23 UTC)
- Expired
- Aug 3, 2012, 7:06 PM EDT
- In force
- 43 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Hunterdon County, NJ, Mercer County, NJ, Bucks County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 43 km from the middle of the area, began a volume at 22:26 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 3, 6:30 PM EDT | TSTM WND DMG | Middletown Twp, PA | TREE LIMBS AND WIRES DOWN. |
| Aug 3, 6:40 PM EDT | TSTM WND DMG | Falls Twp, PA | TREE LIMBS AND WIRES DOWN. |
| Aug 3, 6:50 PM EDT | TSTM WND DMG | Bristol Twp, PA | TREE LIMBS AND WIRES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.4 hours before the alert went out and 134 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
- 1112 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 961 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
803
WUUS51 KPHI 032223
SVRPHI
NJC019-021-PAC017-101-032330-
/O.NEW.KPHI.SV.W.0156.120803T2223Z-120803T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
623 PM EDT FRI AUG 3 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MERCER COUNTY IN CENTRAL NEW JERSEY...
THIS INCLUDES THE CITY OF TRENTON...
SOUTH CENTRAL HUNTERDON COUNTY IN NORTHWEST NEW JERSEY...
SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA...
NORTHEASTERN PHILADELPHIA COUNTY IN SOUTHEAST PENNSYLVANIA...
* UNTIL 730 PM EDT
* AT 622 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
LANGHORNE...OR 11 MILES SOUTHWEST OF TRENTON...AND MOVING NORTHEAST
AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
LANGHORNE AND LANGHORNE AROUND 630 PM EDT...
LEVITTOWN AROUND 635 PM EDT...
NEWTOWN AND TULLYTOWN AROUND 640 PM EDT...
WOODSIDE AROUND 655 PM EDT...
YARDLEY AROUND 700 PM EDT...
EWING AND TRENTON AROUND 710 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.
&&
LAT...LON 4018 7469 4018 7471 4016 7471 4013 7476
4013 7482 4008 7487 4007 7495 4012 7503
4014 7501 4018 7508 4043 7486 4026 7456
TIME...MOT...LOC 2223Z 224DEG 11KT 4016 7494
$$
HEAVENER2 follow-up statements
327
WWUS51 KPHI 032247
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
647 PM EDT FRI AUG 3 2012
NJC019-PAC101-032257-
/O.CAN.KPHI.SV.W.0156.000000T0000Z-120803T2330Z/
HUNTERDON NJ-PHILADELPHIA PA-
647 PM EDT FRI AUG 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PHILADELPHIA AND
SOUTH CENTRAL HUNTERDON COUNTIES IS CANCELLED...
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 4018 7469 4018 7471 4016 7471 4013 7476
4013 7482 4008 7487 4017 7503 4036 7480
4024 7459
TIME...MOT...LOC 2247Z 224DEG 11KT 4021 7487
$$
NJC021-PAC017-032330-
/O.CON.KPHI.SV.W.0156.000000T0000Z-120803T2330Z/
MERCER NJ-BUCKS PA-
647 PM EDT FRI AUG 3 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR SOUTHEASTERN BUCKS AND MERCER COUNTIES...
AT 643 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR WOODBOURNE...OR 7 MILES WEST OF TRENTON...MOVING
NORTHEAST AT 15 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
WOODSIDE BY 655 PM EDT...
MORRISVILLE AND YARDLEY BY 700 PM EDT...
EWING...TRENTON AND 7 MILES NORTHWEST OF WHITE HORSE BY 710 PM
EDT...
PENNINGTON AND 7 MILES NORTHWEST OF MERCERVILLE-HAMILTON SQUARE BY
725 PM EDT...
LAWRENCEVILLE AND 8 MILES NORTHWEST OF EDINBURG BY 730 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.
&&
LAT...LON 4018 7469 4018 7471 4016 7471 4013 7476
4013 7482 4008 7487 4017 7503 4036 7480
4024 7459
TIME...MOT...LOC 2247Z 224DEG 11KT 4021 7487
$$
HEAVENER367
WWUS51 KPHI 032306
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
706 PM EDT FRI AUG 3 2012
NJC021-PAC017-032315-
/O.CAN.KPHI.SV.W.0156.000000T0000Z-120803T2330Z/
MERCER NJ-BUCKS PA-
706 PM EDT FRI AUG 3 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BUCKS AND MERCER
COUNTIES IS CANCELLED...
THE STORM THAT PROMPTED THE WARNING HAS ALL BUT DISSIPATED. THERE
COULD STILL BE A FEW CLOUD TO GROUND LIGHTNING STRIKES AND A WIND
GUST UPWARDS OF 30 MPH.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
LAT...LON 4018 7469 4018 7471 4016 7471 4013 7476
4013 7482 4008 7487 4017 7503 4036 7480
4024 7459
TIME...MOT...LOC 2305Z 224DEG 11KT 4025 7482
$$
HEAVENERThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 3:38 PM EDT | Special Weather Statement | PHI | Burlington | 67 min |
| Aug 3, 4:17 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 58 min |
| Aug 3, 4:21 PM EDT | Special Marine Warning | PHI | 84 min | |
| Aug 3, 4:35 PM EDT | Special Weather Statement | PHI | Monmouth | 55 min |
| Aug 3, 4:45 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 60 min |
| Aug 3, 5:12 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 63 min |
| Aug 3, 5:35 PM EDT | Special Weather Statement | PHI | Mercer | 55 min |
| Aug 3, 5:42 PM EDT | Special Weather Statement | PHI | Mercer | 63 min |
| Aug 3, 5:46 PM EDT | Areal Flood Advisory | PHI | Gloucester | 101 min |
| Aug 3, 5:55 PM EDT | Special Weather Statement | PHI | Burlington | 65 min |
| Aug 3, 6:20 PM EDT | Areal Flood Advisory | PHI | Burlington, Mercer | 2 hr |
| Aug 3, 2:39 PM EDT | Special Weather Statement | PHI | Chester | 66 min |
| Aug 3, 4:15 PM EDT | Special Weather Statement | PHI | Delaware | 60 min |
| Aug 3, 7:33 PM EDT | Special Weather Statement | PHI | Bucks | 57 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2012Severe Thunderstorm Warnings in Pennsylvania, 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.