Alert archive / New Jersey / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

August 6, 2016Hunterdon County, Morris County, Somerset County, New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 6, 2016, 3:21 PM EDT for Hunterdon County, Morris County, Somerset County, New Jersey; Northampton County, Pennsylvania. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 6, 2016, 3:21 PM EDT (19:21 UTC)
Expired: Aug 6, 2016, 4:00 PM EDT
In force: 39 min
Issued by: NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 105 km from the middle of the area, began a volume at 19:21 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.

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.4 hours before the alert went out and 139 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: 252 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 685 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

854 
WWUS81 KPHI 061921
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
321 PM EDT SAT AUG 6 2016
 
NJZ001-007>010-012-PAZ061-062-105-062000-
SUSSEX-SOMERSET-MORRIS-HUNTERDON-WARREN-MIDDLESEX-NORTHAMPTON-LEHIGH-
UPPER BUCKS-
321 PM EDT SAT AUG 6 2016

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN WARREN...
HUNTERDON...SOUTHEASTERN SUSSEX...NORTHERN SOMERSET...MORRIS...NORTH
CENTRAL MIDDLESEX...SOUTHERN NORTHAMPTON...NORTHEASTERN LEHIGH AND
NORTHERN BUCKS COUNTIES...

AT 320 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS ALONG A LINE
EXTENDING FROM NEAR POUGHKEEPSIE--NEWBURGH TO NEAR WASHINGTON TO
BATH...AND MOVING EAST AT 35 MPH.

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
EASTON...MORRISTOWN...SOMERVILLE...NEWTON...BETHLEHEM...
BRIDGEWATER...DOVER...MADISON...HOPATCONG...FORKS...MIDDLESEX...
FLORHAM PARK...EAST HANOVER...LINCOLN PARK...BOUND BROOK...
MANVILLE...KINNELON...NORTHAMPTON...HACKETTSTOWN AND CHATHAM.

THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 4117 7441 4109 7450 4104 7450 4105 7445
      4103 7442 4100 7430 4097 7428 4090 7427
      4091 7433 4075 7436 4067 7446 4066 7440
      4060 7446 4060 7434 4050 7489 4071 7553
      4081 7501 4121 7459
TIME...MOT...LOC 1920Z 284DEG 31KT 4106 7441 4075 7493 4071 7538 
$$

SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 2:24 PM EDT	Special Weather Statement	PHI	Sussex	36 min
Aug 6, 2:50 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	40 min
Aug 6, 3:55 PM EDT	Special Weather Statement	PHI	Hunterdon, Middlesex, Morris, Somerset	50 min
Aug 6, 4:40 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth	50 min
Aug 6, 5:40 PM EDT	Special Weather Statement	PHI	Mercer	50 min
Aug 6, 5:41 PM EDT	Special Weather Statement	PHI	Monmouth	49 min
Aug 6, 6:32 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester	4 hr
Aug 6, 6:52 PM EDT	Special Weather Statement	PHI	Mercer	23 min
Aug 6, 7:10 PM EDT	Special Weather Statement	PHI	Ocean	50 min
Aug 6, 7:33 PM EDT	Special Marine Warning	PHI		57 min
Aug 6, 7:40 PM EDT	Special Weather Statement	PHI	Ocean	35 min
Aug 6, 4:26 PM EDT	Special Weather Statement	PHI	Lehigh	34 min
Aug 6, 4:30 PM EDT	Special Weather Statement	PHI	Berks	30 min
Aug 6, 4:51 PM EDT	Special Weather Statement	PHI	Montgomery	24 min
Aug 6, 4:55 PM EDT	Special Weather Statement	PHI	Lehigh	35 min
Aug 6, 4:59 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	46 min
Aug 6, 5:26 PM EDT	Special Weather Statement	PHI	Berks	34 min
Aug 6, 5:56 PM EDT	Special Weather Statement	PHI	Montgomery	34 min
Aug 6, 6:25 PM EDT	Special Weather Statement	PHI	Delaware, Montgomery, Philadelphia	35 min
Aug 6, 6:49 PM EDT	Special Weather Statement	PHI	Kent	26 min

Nearby

Special Weather Statements in New Jersey, 2016 Special Weather Statements in Pennsylvania, 2016 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.