Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 7, 2012Warren County, New Jersey; Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 7, 2012, 10:50 PM EDT for Warren County, New Jersey; Monroe County, Northampton County, Pennsylvania. It was in force for 55 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, 10:50 PM EDT (02:50 UTC)
Expired
Jul 7, 2012, 11:45 PM EDT
In force
55 min
Issued by
NWS Philadelphia/Mount Holly

Counties Warren County, NJ, Monroe County, PA, Northampton County, PA

The radar

The Binghamton radar (KBGM), 133 km from the middle of the area, began a volume at 02:51 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, 2.8 hours before the alert went out and 210 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.

869 
WWUS81 KPHI 080250
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1050 PM EDT SAT JUL 7 2012

NJZ001-007-PAZ054-055-062-080345-
CARBON PA-MONROE PA-NORTHAMPTON PA-SUSSEX NJ-WARREN NJ-
1050 PM EDT SAT JUL 7 2012

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

AT 1043 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH THE LEAD STORM ABOUT 5 MILES EAST OF 
WILKES-BARRE. THE STORMS WERE MOVING SOUTHEAST AT AROUND 40 MPH. 
THEY WILL BE NEAR BLAKESLEE AND TOBYHANNA AROUND 1100 PM...POCONO 
PINES AND SCOTRUN AROUND 1115 PM...DELAWARE WATER GAP AROUND 1130 PM 
AND HOPE AROUND 1145 PM.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM.

DANGEROUS CLOUD TO GROUND LIGHTNING WAS OCCURRING WITH THE STORMS. 
IF YOU HEAR THUNDER...MOVE INDOORS. 

LAT...LON 4123 7513 4115 7514 4115 7508 4109 7503
      4117 7490 4112 7474 4065 7517 4100 7578
      4101 7574 4105 7578 4109 7577 4113 7570
      4113 7564 4123 7554 4125 7523

$$

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, 10:53 PM EDTSpecial Weather StatementPHIOcean52 min
Jul 7, 11:04 PM EDTSpecial Weather StatementPHIMiddlesex, Monmouth56 min
Jul 7, 11:36 PM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset, Sussex, Warren54 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 Pennsylvania, 2012Special Weather Statements in New Jersey, 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.