Alert archive / New Jersey / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 162, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 4, 2012, 4:01 PM EDT for Middlesex County, Morris County, Somerset County, New Jersey. It was in force for 59 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
- Aug 4, 2012, 4:01 PM EDT (20:01 UTC)
- Expired
- Aug 4, 2012, 5:00 PM EDT
- In force
- 59 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Middlesex County, NJ, Morris County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 20:02 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, 8.0 hours before the alert went out and 133 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
- 2028 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 802 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
041
WUUS51 KPHI 042001
SVRPHI
NJC023-027-035-042100-
/O.NEW.KPHI.SV.W.0162.120804T2001Z-120804T2100Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
401 PM EDT SAT AUG 4 2012
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF NEW BRUNSWICK...
SOUTH CENTRAL MORRIS COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF MORRISTOWN...
SOMERSET COUNTY IN NORTHERN NEW JERSEY...
THIS INCLUDES THE CITY OF SOMERVILLE...
* UNTIL 500 PM EDT
* AT 358 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
NORTH BRUNSWICK...AND MOVING NORTH AT 25 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
SOCIETY HILL AND MANVILLE AROUND 410 PM EDT...
MIDDLESEX AND BOUND BROOK AROUND 415 PM EDT...
MARTINSVILLE AROUND 420 PM EDT...
MILLINGTON AROUND 430 PM EDT...
BASKING RIDGE AROUND 435 PM EDT...
CHATHAM AROUND 445 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 4034 7439 4040 7473 4087 7464 4081 7434
4078 7437 4073 7437 4067 7445 4067 7440
4061 7442 4062 7431 4060 7430 4060 7426
TIME...MOT...LOC 2001Z 194DEG 22KT 4048 7452
$$
IOVINO1 follow-up statement
978
WWUS51 KPHI 042022
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
422 PM EDT SAT AUG 4 2012
NJC023-027-035-042100-
/O.CON.KPHI.SV.W.0162.000000T0000Z-120804T2100Z/
MORRIS NJ-SOMERSET NJ-MIDDLESEX NJ-
422 PM EDT SAT AUG 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTHEASTERN MIDDLESEX...EASTERN SOMERSET AND SOUTH CENTRAL
MORRIS COUNTIES...
AT 419 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR DUNELLEN...MOVING NORTH AT 25 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
WATCHUNG AND MILLINGTON BY 430 PM EDT...
BASKING RIDGE BY 435 PM EDT...
CHATHAM BY 445 PM EDT...
MADISON...FLORHAM PARK AND MORRISTOWN BY 450 PM EDT...
HANOVER TOWNSHIP AND MORRIS PLAINS BY 455 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.
&&
LAT...LON 4046 7436 4049 7466 4087 7464 4081 7434
4078 7437 4073 7437 4067 7445 4067 7440
4061 7442 4062 7431 4060 7430 4060 7426
TIME...MOT...LOC 2022Z 194DEG 22KT 4060 7448
$$
IOVINOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 1:26 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 34 min |
| Aug 4, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 62 min |
| Aug 4, 2:28 PM EDT | Special Marine Warning | PHI | 62 min | |
| Aug 4, 2:53 PM EDT | Special Weather Statement | PHI | Mercer | 67 min |
| Aug 4, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 54 min |
| Aug 4, 3:35 PM EDT | Special Marine Warning | PHI | 38 min | |
| Aug 4, 3:42 PM EDT | Special Weather Statement | PHI | Middlesex, Somerset | 63 min |
| Aug 4, 3:47 PM EDT | Small Craft Advisory | PHI | 39 hr | |
| Aug 4, 5:30 PM EDT | Small Craft Advisory | PHI | 4 hr |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.