Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 136, NWS Philadelphia/Mount Holly

July 25, 2016Bucks County, Lehigh County, Northampton County, Pennsylvania; 5 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2016, 4:34 PM EDT for Bucks County, Lehigh County, Northampton County, Pennsylvania; 5 counties in New Jersey. It was in force for 56 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 25, 2016, 4:34 PM EDT (20:34 UTC)
Expired
Jul 25, 2016, 5:30 PM EDT
In force
56 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Bucks County, PA, Lehigh County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 95 km from the middle of the area, began a volume at 20:33 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 25, 4:39 PM EDTTSTM WND GST 52Newburg, PA
Jul 25, 4:55 PM EDTTSTM WND DMGMilford, NJCOUNTY COMMUNICATIONS NOTED NUMEROUS TREE DAMAGE ACROSS THE COUNTY ALONG WITH DOWNED POLES.
Jul 25, 4:57 PM EDTTSTM WND DMGBranchburg, NJPREAKNESS CIRCLE- CHIMNEY RIPPED OFF HOUSE AND 2 CARS THROWN 100 FEET.
Jul 25, 5:10 PM EDTTSTM WND GST 50Flemington, NJ
Jul 25, 5:12 PM EDTTORNADO1 Nne Readington, NJEF1 TORNADO CONFIRMED IN READINGTON AND BRANCHBURG TOWNSHIPS
Jul 25, 5:15 PM EDTTSTM WND DMGReadington, NJNUMEROUS TREES DOWN.
Jul 25, 5:20 PM EDTTSTM WND GST 451 E North Branch, NJ
Jul 25, 5:27 PM EDTTSTM WND DMGMartinsville, NJWIDESPREAD TREE DAMAGE VICINTY WASHINGTON VALLEY ROAD AND TULLO ROAD

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.

IssuedProductOfficeLasted
Jul 25, 12:43 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.6 hours before the alert went out and 175 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 2016-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 136 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 2016-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
136 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1205 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

250 
WUUS51 KPHI 252034
SVRPHI
NJC019-027-035-037-041-PAC017-077-095-252130-
/O.NEW.KPHI.SV.W.0136.160725T2034Z-160725T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
434 PM EDT MON JUL 25 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WARREN COUNTY IN NORTHWESTERN NEW JERSEY...
  HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
  SOUTH CENTRAL SUSSEX COUNTY IN NORTHWESTERN NEW JERSEY...
  CENTRAL SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  SOUTHWESTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHEASTERN LEHIGH COUNTY IN EASTERN PENNSYLVANIA...
  NORTHWESTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 530 PM EDT

* AT 433 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM BANGOR TO SPRINGTOWN TO NEAR BECHTELSVILLE...MOVING
  EAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL. FREQUENT
           LIGHTNING IS OCCURRING.

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  EASTON...SOMERVILLE...BETHLEHEM...BRIDGEWATER...DOVER...
  HOPATCONG...FORKS...MANVILLE...HACKETTSTOWN...WILSON...WHARTON...
  WASHINGTON...ROCKAWAY...HELLERTOWN...NAZARETH...BANGOR...
  MOUNT ARLINGTON...MENDHAM...FLEMINGTON AND HIGH BRIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 4049 7458 4047 7545 4086 7529 4091 7524
      4096 7448
TIME...MOT...LOC 2033Z 268DEG 32KT 4087 7520 4054 7530 4041 7566 

HAIL...1.00IN
WIND...60MPH
 
$$

GORSE
1 follow-up statement
069 
WWUS51 KPHI 252106
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
506 PM EDT MON JUL 25 2016

NJC019-027-035-037-041-PAC017-077-095-252130-
/O.CON.KPHI.SV.W.0136.000000T0000Z-160725T2130Z/
WARREN NJ-HUNTERDON NJ-SUSSEX NJ-SOMERSET NJ-MORRIS NJ-
NORTHAMPTON PA-LEHIGH PA-BUCKS PA-
506 PM EDT MON JUL 25 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTHERN WARREN...HUNTERDON...SOUTH CENTRAL SUSSEX...CENTRAL
SOMERSET...SOUTHWESTERN MORRIS...SOUTHEASTERN NORTHAMPTON...
SOUTHEASTERN LEHIGH AND NORTHWESTERN BUCKS COUNTIES...

AT 506 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
FLEMINGTON...OR 15 MILES WEST OF SOMERVILLE...MOVING EAST AT 35 MPH.

HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL. FREQUENT CLOUD TO
         GROUND LIGHTNING IS OCCURRING.

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
EASTON...SOMERVILLE...BRIDGEWATER...DOVER...HOPATCONG...MANVILLE...
HACKETTSTOWN...WHARTON...WASHINGTON...ROCKAWAY...HELLERTOWN...
MOUNT ARLINGTON...MENDHAM...FLEMINGTON...HIGH BRIDGE...STANHOPE...
NETCONG...CLINTON...BELVIDERE AND HARMONY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO 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.

&&

LAT...LON 4049 7458 4047 7545 4089 7499 4096 7448
TIME...MOT...LOC 2106Z 268DEG 32KT 4055 7491 

HAIL...0.88IN
WIND...60MPH
 
$$

GORSE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 3:21 AM EDTSpecial Weather StatementPHIChester, Montgomery39 min
Jul 25, 3:55 AM EDTSpecial Weather StatementPHIBucks, Delaware, Montgomery, Philadelphia50 min
Jul 25, 4:19 AM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia41 min
Jul 25, 4:54 AM EDTSevere Thunderstorm WarningPHIDelaware, Philadelphia51 min
Jul 25, 3:15 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe45 min
Jul 25, 3:52 PM EDTSevere Thunderstorm WarningPHICarbon, Lehigh, Monroe, Northampton53 min
Jul 25, 4:00 PM EDTSpecial Weather StatementPHILehigh30 min
Jul 25, 4:37 PM EDTSevere Thunderstorm WarningPHIBucks38 min
Jul 25, 5:15 PM EDTSevere Thunderstorm WarningPHIBucks45 min
Jul 25, 5:19 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Northampton56 min
Jul 25, 5:57 PM EDTSevere Thunderstorm WarningPHIBucks, Lehigh, Northampton48 min
Jul 25, 5:58 PM EDTSevere Thunderstorm WarningPHIBucks47 min
Jul 25, 6:01 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery, Philadelphia44 min
Jul 25, 6:39 PM EDTSevere Thunderstorm WarningPHIBucks40 min
Jul 25, 6:43 PM EDTSevere Thunderstorm WarningPHIBucks, Montgomery, Philadelphia62 min
Jul 25, 6:55 PM EDTAreal Flood AdvisoryPHIBucks, Montgomery, Philadelphia2 hr
Jul 25, 7:12 PM EDTSpecial Weather StatementPHIChester, Delaware, Philadelphia63 min
Jul 25, 7:17 PM EDTFlash Flood WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia4 hr
Jul 25, 4:46 AM EDTSpecial Weather StatementPHIBurlington, Camden, Mercer59 min
Jul 25, 5:27 AM EDTSpecial Weather StatementPHIBurlington, Ocean63 min
Jul 25, 6:17 AM EDTSpecial Marine WarningPHI88 min
Jul 25, 7:11 AM EDTSpecial Marine WarningPHI64 min
Jul 25, 7:59 AM EDTSpecial Weather StatementPHIOcean61 min
Jul 25, 8:04 AM EDTSpecial Marine WarningPHI56 min
Jul 25, 9:00 AM EDTSpecial Marine WarningPHI60 min
Jul 25, 5:04 PM EDTSevere Thunderstorm WarningPHISussex41 min
Jul 25, 5:39 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren46 min
Jul 25, 6:04 PM EDTSpecial Marine WarningPHI56 min
Jul 25, 6:17 PM EDTFlash Flood WarningPHIMercer, Middlesex, Monmouth, Somerset4 hr
Jul 25, 6:54 PM EDTSpecial Marine WarningPHI66 min
Jul 25, 7:53 PM EDTSpecial Weather StatementPHIAtlantic37 min
Jul 25, 7:58 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Ocean44 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2016Severe Thunderstorm Warnings in Pennsylvania, 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.