Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

October 4, 2012Carbon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Oct 4, 2012, 12:56 PM EDT for Carbon County, Pennsylvania. It was in force for 64 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
Oct 4, 2012, 12:56 PM EDT (16:56 UTC)
Expired
Oct 4, 2012, 2:00 PM EDT
In force
64 min
Issued by
NWS Philadelphia/Mount Holly

County Carbon County, PA

The radar

The Binghamton radar (KBGM), 149 km from the middle of the area, began a volume at 17:00 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 4.9 hours before the alert went out and 158 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 331 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
331 J/kg
Mixed-layer CIN
-38 J/kg
Mixed-layer LCL
814 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
-19 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

348 
WWUS81 KPHI 041656
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1256 PM EDT THU OCT 4 2012

PAZ054-055-060-061-041800-
BERKS PA-CARBON PA-LEHIGH PA-MONROE PA-
1256 PM EDT THU OCT 4 2012

...SHOWERS WITH HEAVY RAINFALL WILL AFFECT BERKS...LEHIGH...MONROE
AND CARBON COUNTIES...

AT 1254 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS WITH HEAVY RAINFALL ALONG A LINE EXTENDING FROM 11 MILES
SOUTHEAST OF WILKES-BARRE TO 19 MILES NORTH OF READING...MOVING EAST
AT 20 MPH. THE SHOWERS WILL BE NEAR WEATHERLY...SHOEMAKERSVILLE...
LANSFORD...HAMBURG AROUND 100 PM...SUMMIT HILL...NESQUEHONING AROUND
105 PM...NEW MAHONING...LENHARTSVILLE AROUND 115 PM...WANAMAKERS AND
ARROWHEAD LAKE AROUND 120 PM.

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

LOCALLY GUSTY WINDS ARE ALSO POSSIBLE WITH THESE SHOWERS.

LAT...LON 4125 7533 4081 7553 4078 7560 4072 7557
      4050 7567 4044 7626 4054 7619 4058 7602
      4065 7599 4074 7577 4088 7597 4091 7598
      4093 7596 4101 7575 4109 7577 4113 7570
      4113 7564 4123 7554

$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 2:49 PM EDTSpecial Weather StatementPHIWarren71 min
Oct 4, 3:07 PM EDTSpecial Weather StatementPHISussex53 min
Oct 4, 3:32 PM EDTAreal Flood AdvisoryPHISussex92 min
Oct 4, 3:41 PM EDTSpecial Weather StatementPHIMorris79 min
Oct 4, 4:05 PM EDTAreal Flood AdvisoryPHIMorris94 min
Oct 4, 1:55 PM EDTSpecial Weather StatementPHICarbon, Lehigh, Monroe50 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.