Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 143, NWS Philadelphia/Mount Holly

July 25, 20164 counties in New Jersey; Bucks County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2016, 5:58 PM EDT for 4 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 47 min. 1 report 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, 5:58 PM EDT (21:58 UTC)
Expired: Jul 25, 2016, 6:45 PM EDT
In force: 47 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

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

The radar

The Philadelphia radar (KDIX), 45 km from the middle of the area, began a volume at 21:59 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
Jul 25, 5:59 PM EDT	TSTM WND GST 56	Trenton Airport, NJ

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.

Issued	Product	Office	Lasted
Jul 25, 12:43 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 171 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: 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.

581 
WUUS51 KPHI 252158
SVRPHI
NJC005-021-023-025-PAC017-252245-
/O.NEW.KPHI.SV.W.0143.160725T2158Z-160725T2245Z/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

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

* UNTIL 645 PM EDT

* AT 558 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER EWING...OR
  NEAR TRENTON...MOVING EAST AT 25 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  TRENTON AND LAWRENCEVILLE AROUND 605 PM EDT. BORDENTOWN AND WHITE
  HORSE AROUND 615 PM EDT. PRINCETON AND MERCERVILLE-HAMILTON SQUARE
  AROUND 620 PM EDT. EDINBURG AND CROSSWICKS AROUND 625 PM EDT.
  WINDSOR...PLAINSBORO CENTER AND PRINCETON MEADOWS AROUND 630 PM
  EDT. ALLENTOWN AROUND 635 PM EDT.
  HIGHTSTOWN...CRANBURY...IMLAYSTOWN AND CREAM RIDGE AROUND 640 PM
  EDT. ROOSEVELT...TWIN RIVERS...CLARKSBURG AND CLEARBROOK PARK
  AROUND 645 PM EDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
ROSSMOOR...FIELDSBORO...CONCORDIA...YARDVILLE-GROVEVILLE...PRINCETON
JUNCTION...WOODBOURNE...LANGHORNE MANOR...NEWTOWN GRANT...VILLAGE
SHIRES AND MORRISVILLE.

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 4014 7445 4008 7455 4019 7508 4038 7496
      4034 7494 4035 7486 4038 7487 4038 7482
      4033 7439
TIME...MOT...LOC 2158Z 277DEG 20KT 4026 7482 

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

MEOLA

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 4:46 AM EDT	Special Weather Statement	PHI	Burlington, Camden, Mercer	59 min
Jul 25, 4:54 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	51 min
Jul 25, 5:27 AM EDT	Special Weather Statement	PHI	Burlington, Ocean	63 min
Jul 25, 6:17 AM EDT	Special Marine Warning	PHI		88 min
Jul 25, 7:11 AM EDT	Special Marine Warning	PHI		64 min
Jul 25, 7:59 AM EDT	Special Weather Statement	PHI	Ocean	61 min
Jul 25, 8:04 AM EDT	Special Marine Warning	PHI		56 min
Jul 25, 9:00 AM EDT	Special Marine Warning	PHI		60 min
Jul 25, 3:52 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Warren	53 min
Jul 25, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	56 min
Jul 25, 4:37 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	38 min
Jul 25, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	41 min
Jul 25, 5:15 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	45 min
Jul 25, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	46 min
Jul 25, 5:57 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	48 min
Jul 25, 6:01 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	44 min
Jul 25, 6:04 PM EDT	Special Marine Warning	PHI		56 min
Jul 25, 6:17 PM EDT	Flash Flood Warning	PHI	Mercer, Middlesex, Monmouth, Somerset	4 hr
Jul 25, 6:39 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Somerset	40 min
Jul 25, 6:43 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Ocean	62 min
Jul 25, 6:54 PM EDT	Special Marine Warning	PHI		66 min
Jul 25, 6:55 PM EDT	Areal Flood Advisory	PHI	Burlington	2 hr
Jul 25, 7:12 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Ocean	63 min
Jul 25, 7:17 PM EDT	Flash Flood Warning	PHI	Burlington, Camden	4 hr
Jul 25, 7:53 PM EDT	Special Weather Statement	PHI	Atlantic	37 min
Jul 25, 7:58 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	44 min
Jul 25, 3:21 AM EDT	Special Weather Statement	PHI	Chester, Montgomery	39 min
Jul 25, 3:55 AM EDT	Special Weather Statement	PHI	Bucks, Delaware, Montgomery, Philadelphia	50 min
Jul 25, 4:19 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	41 min
Jul 25, 3:15 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	45 min
Jul 25, 4:00 PM EDT	Special Weather Statement	PHI	Lehigh	30 min
Jul 25, 5:19 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Northampton	56 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.