Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 83, NWS Philadelphia/Mount Holly

July 8, 2016Morris County, Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 8, 2016, 3:45 PM EDT for Morris County, Somerset County, New Jersey. It was in force for 45 min. 8 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 8, 2016, 3:45 PM EDT (19:45 UTC)
Expired
Jul 8, 2016, 4:30 PM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Morris County, NJ, Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 101 km from the middle of the area, began a volume at 19:48 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

TimeReportWhereRemark
Jul 8, 3:50 PM EDTTSTM WND DMGRoxbury Twp, NJTREES DOWN. TIME ESTIMATED FROM RADAR.
Jul 8, 3:52 PM EDTHAIL 0.75Budd Lake, NJ
Jul 8, 3:55 PM EDTTSTM WND DMGBudd Lake, NJMULTIPLE TREES DOWN. TIME ESTIMATED FROM RADAR
Jul 8, 4:00 PM EDTTSTM WND DMGFlanders, NJSOME TREES DOWN. TIME ESTIMATED FROM RADAR.
Jul 8, 4:00 PM EDTTSTM WND DMGMount Olive, NJTREES DOWN. TIME ESTIMATED FROM RADAR
Jul 8, 4:00 PM EDTHAIL 0.75Flanders, NJ
Jul 8, 4:06 PM EDTTSTM WND DMGChester, NJMULTIPLE TREES DOWN. TIME ESTIMATED FROM RADAR
Jul 8, 4:10 PM EDTTSTM WND DMGMendham, NJMULTIPLE TREES DOWN. TIME ESTIMATED FROM RADAR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.8 hours before the alert went out and 151 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 2016-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 387 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -67 square meters per square second.1939Sfc1 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
387 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
884 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-67 m²/s²
0-3 km storm-relative helicity
-38 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

678 
WUUS51 KPHI 081945
SVRPHI
NJC027-035-082030-
/O.NEW.KPHI.SV.W.0083.160708T1945Z-160708T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
345 PM EDT FRI JUL 8 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  CENTRAL MORRIS COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 430 PM EDT

* AT 345 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BUDD
  LAKE...OR 12 MILES SOUTH OF NEWTON...MOVING SOUTHEAST AT 10 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  MORRISTOWN...DOVER...MADISON...FLORHAM PARK...HACKETTSTOWN...
  WHARTON...ROCKAWAY...MORRIS PLAINS...MOUNT ARLINGTON...MENDHAM...
  MOUNTAIN LAKES...STANHOPE...NETCONG...PEAPACK AND GLADSTONE...
  CHESTER...VICTORY GARDENS...FAR HILLS...SUCCASUNNA...
  LONG VALLEY AND MILLINGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4072 7442 4061 7463 4076 7475 4082 7484
      4086 7480 4087 7481 4090 7478 4092 7473
      4090 7471 4092 7465 4095 7463 4086 7435
TIME...MOT...LOC 1945Z 299DEG 10KT 4087 7470 

HAIL...0.75IN
WIND...60MPH
 
$$

JRK
2 follow-up statements
054 
WWUS51 KPHI 082006
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
406 PM EDT FRI JUL 8 2016

NJC027-035-082030-
/O.CON.KPHI.SV.W.0083.000000T0000Z-160708T2030Z/
SOMERSET NJ-MORRIS NJ-
406 PM EDT FRI JUL 8 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTH CENTRAL SOMERSET AND SOUTHERN MORRIS COUNTIES...

AT 404 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER CHESTER...OR 9
MILES WEST OF MORRISTOWN...MOVING SOUTHEAST AT 15 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. AT 352 PM...DIME SIZE HAIL WAS REPORTED
         AT BUDD LAKE. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MORRISTOWN...DOVER...MADISON...MORRIS PLAINS...MENDHAM...PEAPACK AND
GLADSTONE...CHESTER...FAR HILLS...SUCCASUNNA...MILLINGTON...
SUCCASUNNA-KENVIL...BASKING RIDGE...LONG VALLEY AND BERNARDSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

IN ADDITION TO DAMAGING WINDS...SMALL HAIL TO DIME SIZE AND FREQUENT
CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4080 7481 4090 7462 4079 7439 4072 7442
      4061 7463 4076 7475
TIME...MOT...LOC 2004Z 326DEG 14KT 4079 7467 

HAIL...<.75IN
WIND...60MPH
 
$$

JRK
290 
WWUS51 KPHI 082018
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
418 PM EDT FRI JUL 8 2016

NJC027-035-082030-
/O.CON.KPHI.SV.W.0083.000000T0000Z-160708T2030Z/
SOMERSET NJ-MORRIS NJ-
418 PM EDT FRI JUL 8 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTH CENTRAL SOMERSET AND SOUTH CENTRAL MORRIS COUNTIES...

AT 417 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MENDHAM...OR 7
MILES SOUTHWEST OF MORRISTOWN...MOVING SOUTHEAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. AT 352 PM...DIME SIZE HAIL WAS REPORTED AT
         BUDD LAKE. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MADISON...MENDHAM...PEAPACK AND GLADSTONE...FAR HILLS...MILLINGTON...
BASKING RIDGE AND BERNARDSVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

IN ADDITION TO DAMAGING WINDS...SMALL HAIL TO DIME SIZE AND FREQUENT
CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE
ENOUGH TO BE STRUCK BY LIGHTNING.

TORRENTIAL RAINFALL IS OCCURRING WITH THIS STORM...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4077 7470 4082 7458 4074 7441 4072 7442
      4061 7463 4070 7471
TIME...MOT...LOC 2017Z 325DEG 17KT 4075 7460 

HAIL...<.75IN
WIND...60MPH
 
$$

JRK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 1:30 PM EDTSpecial Weather StatementPHICamden, Gloucester, Hunterdon, Salem, Warren3 hr
Jul 8, 2:30 PM EDTAreal Flood AdvisoryPHIBurlington, Camden4 hr
Jul 8, 2:46 PM EDTAreal Flood AdvisoryPHIMorris4 hr
Jul 8, 3:08 PM EDTSpecial Weather StatementPHIMorris37 min
Jul 8, 3:12 PM EDTAreal Flood AdvisoryPHIMorris, Sussex, Warren4 hr
Jul 8, 3:25 PM EDTSpecial Weather StatementPHIBurlington35 min
Jul 8, 3:32 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden43 min
Jul 8, 3:42 PM EDTSpecial Weather StatementPHIMorris33 min
Jul 8, 3:43 PM EDTAreal Flood AdvisoryPHIWarren4 hr
Jul 8, 4:08 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington4 hr
Jul 8, 4:10 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington50 min
Jul 8, 4:25 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Warren4 hr
Jul 8, 4:29 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Morris, Somerset, Warren46 min
Jul 8, 4:56 PM EDTFlash Flood WarningPHIHunterdon, Middlesex, Morris, Somerset, Warren4 hr
Jul 8, 4:59 PM EDTSpecial Weather StatementPHIAtlantic46 min
Jul 8, 5:12 PM EDTSpecial Weather StatementPHIHunterdon, Mercer, Somerset48 min
Jul 8, 5:18 PM EDTFlash Flood WarningPHIHunterdon, Mercer, Middlesex, Somerset4 hr
Jul 8, 5:25 PM EDTSpecial Weather StatementPHIMorris50 min
Jul 8, 5:28 PM EDTAreal Flood AdvisoryPHIAtlantic4 hr
Jul 8, 5:48 PM EDTAreal Flood AdvisoryPHIBurlington, Mercer, Middlesex, Monmouth4 hr
Jul 8, 5:54 PM EDTSpecial Weather StatementPHIMercer36 min
Jul 8, 6:22 PM EDTSpecial Weather StatementPHIBurlington, Camden23 min
Jul 8, 6:36 PM EDTAreal Flood AdvisoryPHIBurlington, Camden4 hr
Jul 8, 7:29 PM EDTSpecial Weather StatementPHIAtlantic31 min
Jul 8, 7:38 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden4 hr
Jul 8, 7:48 PM EDTFlash Flood WarningPHIAtlantic, Burlington, Camden4 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2016Every severe thunderstorm warning in 2016

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.