Alert archive / New Jersey / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 7, 20125 counties in New Jersey; Carbon County, Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 7, 2012, 11:36 PM EDT for 5 counties in New Jersey; Carbon County, Monroe County, Northampton County, Pennsylvania. It was in force for 54 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 7, 2012, 11:36 PM EDT (03:36 UTC)
Expired
Jul 8, 2012, 12:30 AM EDT
In force
54 min
Issued by
NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 119 km from the middle of the area, began a volume at 03:39 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 00:00Z, 3.6 hours before the alert went out and 164 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-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2012-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2012-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1859 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
233 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

722 
WWUS81 KPHI 080336
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1136 PM EDT SAT JUL 7 2012

NJZ001-007>010-PAZ054-055-062-080430-
CARBON PA-HUNTERDON NJ-MONROE PA-MORRIS NJ-NORTHAMPTON PA-SOMERSET NJ-
SUSSEX NJ-WARREN NJ-
1136 PM EDT SAT JUL 7 2012

...THUNDERSTORMS WILL AFFECT PARTS OF CARBON...HUNTERDON...MONROE...
MORRIS...NORTHAMPTON...SOMERSET...SUSSEX AND WARREN COUNTIES...

AT 1130 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN 
AREA OF THUNDERSTORMS MOVING SOUTHEAST THROUGH THE POCONOS AND 
NORTHWEST NEW JERSEY. THE LEADING EDGE OF MOST OF THE STORMS WAS 
FROM AROUND 10 MILES SOUTHEAST OF NEWTON TO ABOUT 10 MILES NORTHEAST 
OF LEHIGHTON...AND THEY WERE MOVING SOUTHEAST AT 40 MPH. 

THUNDERSTORMS WILL BE NEAR LAKE TELEMARK...GILBERT...BELTZVILLE 
STATE PARK AND COLUMBIA AROUND 1140 PM...KINNELON...BUTLER...
SAYLORSBURG AND HOPE AROUND 1145 PM...AND BOONTON AND PEQUANNOCK 
TOWNSHIP AROUND 1150 PM. THEY WILL CONTINUE TO DROP INTO THE 
SOUTHERN POCONOS...THE LEHIGH VALLEY AND NORTHWEST AND NORTH CENTRAL 
NEW JERSEY THROUGH 1230 AM. 

WIND GUSTS TO 45 MPH AND SMALL HAIL ARE POSSIBLE WITH THE STRONGER 
STORMS. DANGEROUS CLOUD TO GROUND LIGHTNING WILL OCCUR WITH THESE 
STORMS. IF YOU HEAR THUNDER...PLEASE MOVE INDOORS. DO NOT SEEK 
SHELTER UNDER TREES WHEN LIGHTNING THREATENS.

LAT...LON 4121 7437 4104 7450 4100 7430 4091 7427
      4090 7433 4074 7436 4067 7445 4067 7440
      4062 7442 4055 7453 4053 7506 4092 7598
      4101 7575 4108 7578 4123 7554 4125 7512
      4115 7514 4109 7502 4135 7475 4136 7469

$$

MPD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 8:33 PM EDTSpecial Marine WarningPHI44 min
Jul 7, 10:50 PM EDTSpecial Weather StatementPHIWarren55 min
Jul 7, 10:53 PM EDTSpecial Weather StatementPHIOcean52 min
Jul 7, 11:04 PM EDTSpecial Weather StatementPHIMiddlesex, Monmouth56 min
Jul 8, 1:06 AM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset, Sussex, Warren54 min
Jul 7, 8:45 PM EDTSpecial Weather StatementPHIChester60 min
Jul 7, 9:05 PM EDTSevere Thunderstorm WarningPHIChester, Delaware32 min
Jul 8, 7:33 PM EDTSpecial Weather StatementPHISussex57 min
Jul 8, 6:16 PM EDTSpecial Weather StatementPHITalbot59 min

Nearby

Special Weather Statements in New Jersey, 2012Special Weather Statements in Pennsylvania, 2012Every special weather statement in 2012

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.