Alert archive / New Jersey / Special Weather Statements in 2014

Special Weather Statement, NWS Philadelphia/Mount Holly

July 23, 2014Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 23, 2014, 6:01 PM EDT for Warren County, New Jersey. It was in force for 59 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: Jul 23, 2014, 6:01 PM EDT (22:01 UTC)
Expired: Jul 23, 2014, 7:00 PM EDT
In force: 59 min
Issued by: NWS Philadelphia/Mount Holly

County Warren County, NJ

The radar

The Philadelphia radar (KDIX), 131 km from the middle of the area, began a volume at 22:03 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, 10.0 hours before the alert went out and 183 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: 75 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 800 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

448 
WWUS81 KPHI 232201
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
601 PM EDT WED JUL 23 2014

NJZ001-007-008-PAZ055-062-232300-
MONROE PA-MORRIS NJ-NORTHAMPTON PA-SUSSEX NJ-WARREN NJ-
601 PM EDT WED JUL 23 2014

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN
NORTHAMPTON...NORTHERN WARREN...SOUTHEASTERN MONROE...SOUTHWESTERN
SUSSEX AND WEST CENTRAL MORRIS COUNTIES...

AT 559 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
ARLINGTON HEIGHTS TO DELAWARE WATER GAP TO WIND GAP...MOVING EAST AT
20 MPH.

WIND GUSTS TO 40 MPH AND PEA SIZE HAIL ARE POSSIBLE WITH THESE
STORMS. 

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS. DO
NOT STAY IN THE OPEN NOR SEEK SHELTER UNDER TREES WHEN LIGHTNING
THREATENS...MOVE INDOORS WHEN A THUNDERSTORM APPROACHES. 

THESE STORMS WILL BE NEAR MARSHALLS CREEK AROUND 610 PM...HIDDEN LAKE
AROUND 620 PM...MILLBROOK AROUND 630 PM...OXFORD AROUND 640 PM...FIVE
POINTS AROUND 650 PM AND HACKETTSTOWN AROUND 700 PM.

LAT...LON 4112 7505 4109 7503 4110 7500 4112 7497
      4111 7479 4092 7472 4078 7482 4081 7534
      4096 7525 4114 7539

$$

FORECASTER:SFJ

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 7:01 PM EDT	Special Weather Statement	PHI	Somerset	59 min
Jul 23, 7:36 PM EDT	Special Weather Statement	PHI	Salem	54 min
Jul 23, 7:55 PM EDT	Special Marine Warning	PHI		65 min
Jul 23, 7:59 PM EDT	Special Weather Statement	PHI	Burlington, Camden, Gloucester, Mercer	61 min
Jul 23, 4:33 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	57 min
Jul 23, 4:42 PM EDT	Special Weather Statement	PHI	Berks, Lehigh	48 min
Jul 23, 5:17 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	58 min
Jul 23, 5:25 PM EDT	Special Weather Statement	PHI	Monroe	50 min
Jul 23, 6:14 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	61 min
Jul 23, 7:09 PM EDT	Special Weather Statement	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	51 min
Jul 23, 7:25 PM EDT	Special Weather Statement	PHI	Carbon, Lehigh, Monroe, Northampton	65 min
Jul 23, 7:49 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	38 min

Nearby

Special Weather Statements in New Jersey, 2014 Every special weather statement in 2014

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.