Alert archive / New Jersey / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 119, NWS Philadelphia/Mount Holly

November 10, 2015Mercer County, Middlesex County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 10, 2015, 2:27 PM EST for Mercer County, Middlesex County, Somerset County, New Jersey. It was in force for 33 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
Nov 10, 2015, 2:27 PM EST (19:27 UTC)
Expired
Nov 10, 2015, 3:00 PM EST
In force
33 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), 52 km from the middle of the area, began a volume at 19:27 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, 7.5 hours before the alert went out and 155 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2015-11-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2015-11-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1040 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

302 
WUUS51 KPHI 101927
SVRPHI
NJC021-023-035-102000-
/O.NEW.KPHI.SV.W.0119.151110T1927Z-151110T2000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
227 PM EST TUE NOV 10 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MERCER COUNTY IN CENTRAL NEW JERSEY...
  SOUTHEASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  CENTRAL MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 300 PM EST

* AT 226 PM EST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
  WAS LOCATED OVER KINGSTON...OR 12 MILES SOUTHWEST OF NEW
  BRUNSWICK...AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  NEW BRUNSWICK...SOMERSET...EAST BRUNSWICK...SOUTH BRUNSWICK...
  SAYREVILLE...NORTH BRUNSWICK...MIDDLESEX...PRINCETON...BOUND
  BROOK...MANVILLE...HOPEWELL...ROCKY HILL...MILLSTONE...SOCIETY
  HILL...NORTH BRUNSWICK TOWNSHIP...BELLE MEAD...KINGSTON...KENDALL
  PARK...DAYTON AND PLAINSBORO CENTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4027 7469 4039 7477 4057 7454 4046 7426
TIME...MOT...LOC 1926Z 234DEG 49KT 4037 7462 

$$

JJM
1 follow-up statement
008 
WWUS51 KPHI 101941
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
241 PM EST TUE NOV 10 2015

NJC021-101950-
/O.CAN.KPHI.SV.W.0119.000000T0000Z-151110T2000Z/
MERCER NJ-
241 PM EST TUE NOV 10 2015

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MERCER COUNTY IS
CANCELLED...
    
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4035 7455 4041 7467 4057 7454 4046 7426
TIME...MOT...LOC 1940Z 234DEG 49KT 4048 7442 

$$

NJC023-035-102000-
/O.CON.KPHI.SV.W.0119.000000T0000Z-151110T2000Z/
SOMERSET NJ-MIDDLESEX NJ-
241 PM EST TUE NOV 10 2015

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EST
FOR SOUTHEASTERN SOMERSET AND CENTRAL MIDDLESEX COUNTIES...

AT 240 PM EST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED OVER NEW BRUNSWICK...MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
NEW BRUNSWICK...SOMERSET...EAST BRUNSWICK...SOUTH BRUNSWICK...
SAYREVILLE...NORTH BRUNSWICK...MIDDLESEX...BOUND BROOK...ROCKY
HILL...MILLSTONE...KENDALL PARK...DAYTON...SOCIETY HILL...NORTH
BRUNSWICK TOWNSHIP...KINGSTON...SOUTH RIVER...HIGHLAND PARK...
MILLTOWN...SOUTH BOUND BROOK AND MONMOUTH JUNCTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

&&

LAT...LON 4035 7455 4041 7467 4057 7454 4046 7426
TIME...MOT...LOC 1940Z 234DEG 49KT 4048 7442 

$$

JJM

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 10, 7:35 AM ESTGale WarningPHI20 hr
Nov 10, 2:07 PM ESTSevere Thunderstorm WarningPHIMercer23 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2015Every severe thunderstorm warning in 2015

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.