Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 51, NWS Philadelphia/Mount Holly

June 8, 20164 counties in New Jersey; Bucks County, Montgomery County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 8, 2016, 11:33 AM EDT for 4 counties in New Jersey; Bucks County, Montgomery County, Northampton County, Pennsylvania. It was in force for 42 min. 4 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: Jun 8, 2016, 11:33 AM EDT (15:33 UTC)
Expired: Jun 8, 2016, 12:15 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Somerset County, NJ, Bucks County, PA, Montgomery County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 15:35 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

Time	Report	Where	Remark
Jun 8, 11:55 AM EDT	TSTM WND DMG	Lower Gwynedd Twp, PA	TREES AND WIRES DOWN. TIME CHECKED VIA RADAR.
Jun 8, 11:55 AM EDT	HAIL 0.25	Richboro, PA
Jun 8, 12:10 PM EDT	TSTM WND DMG	Branchburg, NJ	WIRES DOWN WITH TRANSFORMER FIRE
Jun 8, 12:20 PM EDT	TSTM WND GST 53	Red Lion, NJ

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 3.6 hours before the alert went out and 149 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1275 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

300 
WUUS51 KPHI 081533
SVRPHI
NJC019-021-023-035-PAC017-091-095-081615-
/O.NEW.KPHI.SV.W.0051.160608T1533Z-160608T1615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1133 AM EDT WED JUN 8 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  HUNTERDON COUNTY IN NORTHWESTERN NEW JERSEY...
  SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  WESTERN MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  SOUTH CENTRAL NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...
  CENTRAL MONTGOMERY COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 1215 PM EDT

* AT 1132 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER ROBESONIA...
  OR 22 MILES SOUTH OF EASTON...MOVING EAST AT 45 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...RADAR INDICATED. 

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

* LOCATIONS IMPACTED INCLUDE...
  TRENTON...NEW BRUNSWICK...SOMERVILLE...SOMERSET...BETHLEHEM...EAST
  BRUNSWICK...BRIDGEWATER...SOUTH BRUNSWICK...NORTH BRUNSWICK...EWING...
  LANSDALE...MIDDLESEX...PRINCETON...BOUND BROOK...MANVILLE...QUAKERTOWN...
  PERKASIE...DOYLESTOWN...BYRAM AND SOUDERTON.

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.

&&

LAT...LON 4023 7450 4022 7453 4018 7457 4018 7462
      4022 7538 4053 7536 4054 7533 4055 7536
      4062 7535 4062 7520 4059 7519 4062 7516
      4061 7444 4060 7446 4059 7442
TIME...MOT...LOC 1532Z 275DEG 40KT 4036 7515 

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

ROBERTSON

1 follow-up statement

173 
WWUS51 KPHI 081552
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1152 AM EDT WED JUN 8 2016

PAC095-081601-
/O.CAN.KPHI.SV.W.0051.000000T0000Z-160608T1615Z/
NORTHAMPTON PA-
1152 AM EDT WED JUN 8 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL NORTHAMPTON
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 4024 7450 4021 7455 4019 7456 4018 7464
      4020 7502 4021 7514 4021 7516 4022 7531
      4062 7513 4061 7444 4060 7446 4059 7442
TIME...MOT...LOC 1551Z 274DEG 38KT 4034 7491 

$$

NJC019-021-023-035-PAC017-091-081615-
/O.CON.KPHI.SV.W.0051.000000T0000Z-160608T1615Z/
MERCER NJ-HUNTERDON NJ-SOMERSET NJ-MIDDLESEX NJ-BUCKS PA-
MONTGOMERY PA-
1152 AM EDT WED JUN 8 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT
FOR MERCER...HUNTERDON...SOMERSET...WESTERN MIDDLESEX...CENTRAL BUCKS
AND EAST CENTRAL MONTGOMERY COUNTIES...

AT 1151 AM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER NEW HOPE...OR
11 MILES NORTHWEST OF TRENTON...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

LOCATIONS IMPACTED INCLUDE...
TRENTON...NEW BRUNSWICK...SOMERVILLE...SOMERSET...EAST BRUNSWICK...
BRIDGEWATER...SOUTH BRUNSWICK...NORTH BRUNSWICK...EWING...LANSDALE...
MIDDLESEX...PRINCETON...BOUND BROOK...MANVILLE...DOYLESTOWN...BYRAM...
BEDMINSTER...HIGHTSTOWN...FLEMINGTON AND CHALFONT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4024 7450 4021 7455 4019 7456 4018 7464
      4020 7502 4021 7514 4021 7516 4022 7531
      4062 7513 4061 7444 4060 7446 4059 7442
TIME...MOT...LOC 1551Z 274DEG 38KT 4034 7491 

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

ROBERTSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 10:26 AM EDT	Special Weather Statement	PHI	Warren	49 min
Jun 8, 11:12 AM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Warren	48 min
Jun 8, 11:23 AM EDT	Special Marine Warning	PHI		97 min
Jun 8, 11:23 AM EDT	Special Weather Statement	PHI	Salem	37 min
Jun 8, 11:27 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	48 min
Jun 8, 12:01 PM EDT	Special Weather Statement	PHI	Cumberland	29 min
Jun 8, 12:02 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more	43 min
Jun 8, 12:04 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth, Somerset	56 min
Jun 8, 12:24 PM EDT	Severe Thunderstorm Warning	PHI	Cape May, Cumberland	51 min
Jun 8, 12:28 PM EDT	Special Marine Warning	PHI		92 min
Jun 8, 12:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean	38 min
Jun 8, 12:47 PM EDT	Gale Warning	PHI		8 hr
Jun 8, 12:47 PM EDT	Small Craft Advisory	PHI		45 hr
Jun 8, 12:47 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	28 min
Jun 8, 2:11 PM EDT	Special Marine Warning	PHI		64 min
Jun 8, 2:25 PM EDT	Special Weather Statement	PHI	Cumberland, Salem	50 min
Jun 8, 3:07 PM EDT	Special Marine Warning	PHI		83 min
Jun 8, 5:18 PM EDT	Special Weather Statement	PHI	Ocean	27 min
Jun 8, 10:36 AM EDT	Special Weather Statement	PHI	Chester	39 min
Jun 8, 11:03 AM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware	42 min
Jun 8, 3:04 PM EDT	Special Weather Statement	PHI	Montgomery, Philadelphia	26 min

Nearby

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