Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Philadelphia/Mount Holly

April 2, 20166 counties in New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 2, 2016, 11:56 PM EDT for 6 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 34 min. 2 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: Apr 2, 2016, 11:56 PM EDT (03:56 UTC)
Expired: Apr 3, 2016, 12:30 AM EDT
In force: 34 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Somerset County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 03:55 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
Apr 3, 12:06 AM EDT	HAIL 0.75	Lawrence Twp, NJ	HAIL RANGED FROM PEA TO PENNY SIZE.
Apr 3, 12:17 AM EDT	TSTM WND DMG	Franklin Twp, NJ	EXTENSIVE TREES/POLES DAMAGE WESTON CANAL RD-WESTON RD INTSECTN TO I-287-EASTON RD. RADAR TIME EST.

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 00:00Z, 3.9 hours before the alert went out and 124 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: 31 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 623 m above ground
0-6 km bulk shear: 81 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: -98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

595 
WUUS51 KPHI 030356
SVRPHI
NJC005-021-023-025-029-035-PAC017-030430-
/O.NEW.KPHI.SV.W.0021.160403T0356Z-160403T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1156 PM EDT SAT APR 2 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MERCER COUNTY IN CENTRAL NEW JERSEY...
  MONMOUTH COUNTY IN CENTRAL NEW JERSEY...
  SOUTHEASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY...
  MIDDLESEX COUNTY IN NORTHERN NEW JERSEY...
  NORTHWESTERN OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  NORTH CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN BUCKS COUNTY IN SOUTHEASTERN PENNSYLVANIA...

* UNTIL 1230 AM EDT

* AT 1155 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
  PENNINGTON TO MARLTON...AND MOVING NORTHEAST AT 70 TO 75 MPH.
  PEA TO PENNY SIZE HAIL MAY ALSO ACCOMPANY THE DAMAGING WINDS.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  PRINCETON...PENNINGTON...HOPEWELL...ROCKY HILL...SKILLMAN...KINGSTON 
  AND PLAINSBORO CENTER AROUND 1200 AM EDT. 
  SOUTH BRUNSWICK...NORTH BRUNSWICK...FLORENCE...BURLINGTON...BRISTOL...
  WRIGHTSTOWN...MILLSTONE...COLUMBUS...JOBSTOWN AND BELLE MEAD AROUND 
  1205 AM EDT. 
  NEW BRUNSWICK...SOMERSET...EAST BRUNSWICK...MIDDLESEX...BOUND BROOK...
  MANVILLE...BORDENTOWN...SOCIETY HILL...CROSSWICKS AND GEORGETOWN 
  AROUND 1210 AM EDT. 
  EDISON...ALLENTOWN...IMLAYSTOWN...CREAM RIDGE...WINDSOR...COLONIA...
  EDINBURG...SIX FLAGS THEME PARK AND MERCERVILLE-HAMILTON SQUARE 
  AROUND 1215 AM EDT. 
  MANALAPAN...HIGHTSTOWN...CRANBURY...ROOSEVELT...TWIN RIVERS...
  CLEARBROOK PARK AND CLARKSBURG AROUND 1220 AM EDT. 
  JAMESBURG...YORKETOWN...ROBERTSVILLE...WHITTINGHAM...WEST FREEHOLD AND 
  EAST FREEHOLD AROUND 1225 AM EDT. 
  OLD BRIDGE...SAYREVILLE...MARLBORO...HOLMDEL...MATAWAN...BROWNVILLE...
  MORGANVILLE AND LINCROFT AROUND 1230 AM EDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE FORDS...
WATCHUNG...ROSSMOOR...FREEHOLD...SHREWSBURY...METUCHEN...LAURENCE HARBOR...
EATONTOWN...SOUTH RIVER AND YARDVILLE-GROVEVILLE.

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.

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 4042 7404 4041 7402 4038 7403 4036 7407
      4035 7407 4037 7403 4025 7406 3990 7489
      4039 7477 4067 7443 4066 7441 4060 7446
      4059 7420 4050 7428 4046 7426 4045 7413
      4043 7404 4048 7401 4047 7400
TIME...MOT...LOC 0355Z 225DEG 72KT 4035 7477 3991 7491 

$$

DRAG

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 2, 9:45 PM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more	2 hr
Apr 2, 10:02 PM EDT	Special Weather Statement	PHI	Gloucester, Salem	88 min
Apr 2, 10:08 PM EDT	Special Weather Statement	PHI	Cumberland	37 min
Apr 2, 10:27 PM EDT	Special Weather Statement	PHI	Atlantic, Cumberland	33 min
Apr 2, 10:51 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	39 min
Apr 2, 11:02 PM EDT	Special Marine Warning	PHI		88 min
Apr 2, 11:09 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Mercer, Salem	51 min
Apr 2, 11:24 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	51 min
Apr 2, 11:40 PM EDT	Special Marine Warning	PHI		65 min
Apr 3, 12:08 AM EDT	Special Weather Statement	PHI	Cape May	22 min
Apr 3, 12:14 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Ocean	31 min
Apr 3, 12:19 AM EDT	Special Weather Statement	PHI	Union	26 min
Apr 3, 12:23 AM EDT	Special Marine Warning	PHI		52 min
Apr 3, 12:30 AM EDT	Special Marine Warning	PHI		60 min
Apr 3, 12:39 AM EDT	Special Weather Statement	PHI	Monmouth	21 min
Apr 3, 12:46 AM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	14 min
Apr 3, 12:52 AM EDT	Special Weather Statement	PHI	Ocean	8 min
Apr 3, 1:12 AM EDT	Special Marine Warning	PHI		33 min
Apr 3, 5:45 AM EDT	Low Water Advisory	PHI		9 hr
Apr 3, 11:34 AM EDT	Wind Advisory	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	4 hr
Apr 3, 11:37 AM EDT	Gale Warning	PHI		4 hr
Apr 3, 3:07 PM EDT	Low Water Advisory	PHI		113 min
Apr 3, 3:40 PM EDT	Freeze Watch	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more	12 hr
Apr 3, 3:54 PM EDT	Gale Watch	PHI		12 hr
Apr 3, 3:54 PM EDT	Small Craft Advisory	PHI		5 hr

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.