Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

July 12, 2012Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jul 12, 2012, 5:51 PM EDT for Monroe 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 12, 2012, 5:51 PM EDT (21:51 UTC)
Expired
Jul 12, 2012, 6:45 PM EDT
In force
54 min
Issued by
NWS Philadelphia/Mount Holly

County Monroe County, PA

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 9.9 hours before the alert went out and 193 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 2012-07-12Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2012-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 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
1598 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
-31 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.

640 
WWUS81 KPHI 122151
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
551 PM EDT THU JUL 12 2012

PAZ055-122245-
MONROE PA-
551 PM EDT THU JUL 12 2012

...A STRONG THUNDERSTORM WILL AFFECT MONROE COUNTY...

AT 548 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 2 MILES EAST OF MOUNT POCONO...MOVING SOUTHEAST
AT 10 MPH. THE THUNDERSTORM WILL BE NEAR PARADISE VALLEY...SCOTRUN
AROUND 600 PM...TANNERSVILLE AROUND 610 PM...HENRYVILLE...ALPINE
MOUNTAIN AROUND 615 PM AND ANALOMINK AROUND 635 PM.

VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. DO
NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS
WHEN A THUNDERSTORM APPROACHES.

LAT...LON 4115 7514 4115 7508 4110 7504 4108 7500
      4107 7500 4103 7504 4099 7513 4104 7544
      4123 7543 4124 7513

$$

FORECASTER:PO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 9:53 AM EDTSmall Craft Advisory for Hazardous SeasPHI6 hr
Jul 12, 5:06 PM EDTSpecial Weather StatementPHIMonroe39 min
Jul 12, 5:49 PM EDTAreal Flood AdvisoryPHIMonroe116 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.