Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 190, NWS Philadelphia/Mount Holly

September 14, 2016Morris County, Sussex County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 14, 2016, 4:31 PM EDT for Morris County, Sussex County, New Jersey. It was in force for 29 min. 5 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
Sep 14, 2016, 4:31 PM EDT (20:31 UTC)
Expired
Sep 14, 2016, 5:00 PM EDT
In force
29 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Morris County, NJ, Sussex County, NJ

The radar

The Philadelphia radar (KDIX), 116 km from the middle of the area, began a volume at 20:32 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
Sep 14, 4:31 PM EDTTSTM WND DMGLake Mohawk, NJSEVERAL TREES DOWN WITH SOME BLOCKING ACCESS TO THE LAKE MOHAWK MARINA. NEXT DOOR TO THE MARINA... TWO BOATS FLOATED DOWN THE LAKE AFTER THE DOCK FINGER THEY WERE ATTACHED TO WAS TORN OFF. TIME ESTIMATED BY RADAR.
Sep 14, 4:31 PM EDTTSTM WND GST 731 E Lake Mohawk, NJ
Sep 14, 4:33 PM EDTTSTM WND DMGSparta Twp, NJSEVERAL TREES DOWN
Sep 14, 4:33 PM EDTHAIL 0.5Sparta Twp, NJ
Sep 14, 4:43 PM EDTTSTM WND DMGLake Telemark, NJLARGE TREE LIMBS 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, 8.5 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.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2016-09-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2016-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 square meters per square second.193958Sfc1 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
972 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

623 
WUUS51 KPHI 142031
SVRPHI
NJC027-037-142100-
/O.NEW.KPHI.SV.W.0190.160914T2031Z-160914T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
431 PM EDT WED SEP 14 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTH CENTRAL SUSSEX COUNTY IN NORTHWESTERN NEW JERSEY...
  NORTHEASTERN MORRIS COUNTY IN NORTHERN NEW JERSEY...

* UNTIL 500 PM EDT

* AT 430 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM OGDENSBURG TO LAKE MOHAWK...MOVING EAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* SEVERE THUNDERSTORMS WILL BE NEAR...
  GREEN POND AROUND 440 PM EDT. 
  LAKE TELEMARK AROUND 445 PM EDT. 
  KINNELON AROUND 450 PM EDT. 
  BOONTON...BUTLER...RIVERDALE AND PEQUANNOCK TOWNSHIP AROUND 455 PM 
  EDT. 
  LINCOLN PARK AROUND 500 PM EDT. 

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 THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4090 7435 4100 7472 4104 7462 4107 7461
      4107 7449 4104 7450 4105 7445 4102 7443
      4103 7442 4100 7430 4097 7428 4092 7429
      4090 7427
TIME...MOT...LOC 2030Z 285DEG 32KT 4107 7459 4102 7460 4100 7468 

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

DRAG
1 follow-up statement
087 
WWUS51 KPHI 142044
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
444 PM EDT WED SEP 14 2016

NJC037-142052-
/O.CAN.KPHI.SV.W.0190.000000T0000Z-160914T2100Z/
SUSSEX NJ-
444 PM EDT WED SEP 14 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL SUSSEX COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED EAST OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

LAT...LON 4090 7435 4097 7460 4104 7450 4105 7445
      4102 7443 4103 7442 4100 7430 4097 7428
      4092 7429 4090 7427
TIME...MOT...LOC 2042Z 281DEG 37KT 4103 7449 4100 7446 4097 7455 

$$

NJC027-142100-
/O.CON.KPHI.SV.W.0190.000000T0000Z-160914T2100Z/
MORRIS NJ-
444 PM EDT WED SEP 14 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR NORTHEASTERN MORRIS COUNTY...

AT 442 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM GREEN POND TO NEAR KINNELON TO NEAR LAKE TELEMARK...
MOVING EAST AT 40 MPH.  THERE HAS BEEN A RECENT REPORT OF SEVERAL
TREES DOWNED IN SPARTA TOWNSHIP OF SUSSEX COUNTY NEW JERSEY. 

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

THESE SEVERE STORMS WILL BE NEAR...
  KINNELON AROUND 450 PM EDT. 
  BOONTON...BUTLER...RIVERDALE AND PEQUANNOCK TOWNSHIP AROUND 455 PM 
  EDT. 
  LINCOLN PARK AROUND 500 PM EDT. 

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 THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4090 7435 4097 7460 4104 7450 4105 7445
      4102 7443 4103 7442 4100 7430 4097 7428
      4092 7429 4090 7427
TIME...MOT...LOC 2042Z 281DEG 37KT 4103 7449 4100 7446 4097 7455 

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

DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 13, 9:36 PM EDTSmall Craft AdvisoryPHI53 hr
Sep 14, 3:58 PM EDTSpecial Weather StatementPHISussex47 min
Sep 14, 4:20 PM EDTSpecial Weather StatementPHISussex25 min
Sep 14, 4:49 PM EDTSpecial Weather StatementPHIMorris26 min

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.