Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 77, NWS Philadelphia/Mount Holly

July 1, 2016Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 1, 2016, 3:55 PM EDT for Burlington County, New Jersey. It was in force for 35 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: Jul 1, 2016, 3:55 PM EDT (19:55 UTC)
Expired: Jul 1, 2016, 4:30 PM EDT
In force: 35 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 27 km from the middle of the area, began a volume at 19:57 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
Jul 1, 3:55 PM EDT	TSTM WND GST 40	Eastampton Twp, NJ
Jul 1, 3:55 PM EDT	HAIL 0.5	Eastampton Twp, NJ
Jul 1, 3:55 PM EDT	HAIL 0.75	Eastampton Twp, NJ
Jul 1, 4:00 PM EDT	HAIL 1.25	Eastampton Twp, 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 1, 1:56 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.9 hours before the alert went out and 182 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: 97 J/kg
Mixed-layer CIN: -57 J/kg
Mixed-layer LCL: 971 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 54 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

640 
WUUS51 KPHI 011955
SVRPHI
NJC005-012030-
/O.NEW.KPHI.SV.W.0077.160701T1955Z-160701T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
355 PM EDT FRI JUL 1 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 430 PM EDT

* AT 354 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER MOUNT
  HOLLY... OR 16 MILES SOUTH OF TRENTON...MOVING NORTHEAST AT 35 MPH.

  HAZARD...QUARTER SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED. 

* LOCATIONS IMPACTED INCLUDE...
  MEDFORD...LUMBERTON...MOUNT HOLLY...BORDENTOWN...PEMBERTON...
  WRIGHTSTOWN...CROSSWICKS...JACKSONVILLE...COLUMBUS...GEORGETOWN...
  JOBSTOWN...LEISURETOWNE...FIELDSBORO...MCGUIRE AFB...
  PEMBERTON HEIGHTS...FORT DIX AND NWS OFFICE.

QUARTER SIZED HAIL WAS REPORTED IN HAINESPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3986 7477 3998 7494 4015 7472 4017 7468
      4012 7459 4004 7453
TIME...MOT...LOC 1954Z 224DEG 29KT 3998 7479 

HAIL...1.00IN
WIND...<50MPH
 
$$

AMC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 1:37 AM EDT	Areal Flood Advisory	PHI	Cape May	4 hr
Jul 1, 2:25 AM EDT	Special Marine Warning	PHI		65 min
Jul 1, 11:55 AM EDT	Special Marine Warning	PHI		2 hr
Jul 1, 2:03 PM EDT	Special Weather Statement	PHI	Mercer, Middlesex	27 min
Jul 1, 2:19 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	41 min
Jul 1, 2:57 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	48 min
Jul 1, 3:05 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	40 min
Jul 1, 3:33 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	57 min
Jul 1, 4:09 PM EDT	Special Weather Statement	PHI	Monmouth	36 min
Jul 1, 4:36 PM EDT	Flash Flood Warning	PHI	Monmouth	4 hr
Jul 1, 4:36 PM EDT	Special Weather Statement	PHI	Morris	39 min
Jul 1, 4:50 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cumberland	3 hr
Jul 1, 4:58 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland	47 min
Jul 1, 5:14 PM EDT	Flash Flood Warning	PHI	Cumberland	4 hr
Jul 1, 5:32 PM EDT	Special Weather Statement	PHI	Atlantic	43 min
Jul 1, 5:37 PM EDT	Small Craft Advisory	PHI		2 hr
Jul 1, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic	38 min
Jul 1, 6:14 PM EDT	Special Weather Statement	PHI	Atlantic	61 min
Jul 1, 6:20 PM EDT	Flash Flood Warning	PHI	Atlantic, Burlington, Cumberland, Ocean	4 hr
Jul 1, 6:34 PM EDT	Special Weather Statement	PHI	Monmouth	26 min
Jul 1, 6:37 PM EDT	Special Marine Warning	PHI		53 min
Jul 1, 6:50 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	4 hr
Jul 1, 7:18 PM EDT	Special Weather Statement	PHI	Warren	27 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 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.