Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 27, 2012Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 27, 2012, 7:00 PM EDT for Carbon County, Pennsylvania. It was in force for 60 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 27, 2012, 7:00 PM EDT (23:00 UTC)
Expired
Jul 27, 2012, 8:00 PM EDT
In force
60 min
Issued by
NWS Philadelphia/Mount Holly

County Carbon County, PA

The radar

The Binghamton radar (KBGM), 143 km from the middle of the area, began a volume at 23:00 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, 11.0 hours before the alert went out and 230 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 12:00Z on 2012-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 227 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2012-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 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
227 J/kg
Mixed-layer CIN
-172 J/kg
Mixed-layer LCL
658 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

589 
WWUS81 KPHI 272300
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
700 PM EDT FRI JUL 27 2012

PAZ054-055-061-062-280000-
CARBON PA-LEHIGH PA-MONROE PA-NORTHAMPTON PA-
700 PM EDT FRI JUL 27 2012

...A FEW STRONG THUNDERSTORMS WILL AFFECT CARBON...LEHIGH...MONROE 
AND NORTHAMPTON COUNTIES...

AT 652 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 10 MILES NORTH OF LEHIGHTON...MOVING EAST AT 20 
MPH. THE THUNDERSTORM WILL BE NEAR CHRISTMANS...ALBRIGHTSVILLE... 
WEISSPORT AROUND 705 PM...PARRYVILLE AROUND 710 PM...BELTZVILLE 
STATE PARK...MECKESVILLE...BOWMANSTOWN AROUND 715 PM...PENN FOREST 
RESERVOIR AND JONAS AROUND 720 PM.

YOU CAN EXPECT A FEW DOWNPOURS AND SOME LOCALLY GUSTY WINDS. GO 
INDOORS IF YOU HEAR THUNDER. 

LAT...LON 4100 7517 4059 7549 4089 7593 4099 7581
      4101 7574 4103 7575 4106 7572

$$

FORECASTER:PO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 10:59 PM EDTSpecial Weather StatementPHICamden, Gloucester, Salem91 min
Jul 26, 11:25 PM EDTAreal Flood AdvisoryPHIGloucester, Salem107 min
Jul 26, 11:44 PM EDTAreal Flood AdvisoryPHIAtlantic, Cumberland, Gloucester, Salem2 hr
Jul 26, 11:55 PM EDTSpecial Weather StatementPHIOcean65 min
Jul 27, 12:02 AM EDTSpecial Weather StatementPHIOcean58 min
Jul 27, 12:35 AM EDTAreal Flood AdvisoryPHIBurlington, Ocean117 min
Jul 26, 10:19 PM EDTAreal Flood AdvisoryPHIChester3 hr
Jul 27, 6:02 PM EDTSpecial Weather StatementPHICarbon58 min
Jul 26, 10:01 PM EDTSpecial Weather StatementPHICecil59 min
Jul 26, 10:24 PM EDTSpecial Weather StatementPHIKent, Queen Anne's96 min

Nearby

Special 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.