Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS Philadelphia/Mount Holly

May 22, 2012Carbon County, Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at May 22, 2012, 8:41 PM EDT for Carbon County, Lehigh 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
May 22, 2012, 8:41 PM EDT (00:41 UTC)
Expired
May 22, 2012, 9:45 PM EDT
In force
64 min
Issued by
NWS Philadelphia/Mount Holly

Counties Carbon County, PA, Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 143 km from the middle of the area, began a volume at 00:44 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, 0.7 hours before the alert went out and 241 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 2012-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 2012-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 square meters per square second.1939Sfc1 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
472 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
8 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.

124 
WWUS81 KPHI 230041
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
841 PM EDT TUE MAY 22 2012

PAZ054-060>062-230145-
BERKS PA-CARBON PA-LEHIGH PA-NORTHAMPTON PA-
841 PM EDT TUE MAY 22 2012

...AN AREA OF SHOWERS PRODUCING HEAVY RAINFALL WILL AFFECT BERKS...
LEHIGH...CARBON AND NORTHAMPTON COUNTIES...

AT 836 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN
AREA OF SHOWERS PRODUCING HEAVY RAINFALL 6 MILES WEST OF LEHIGHTON...
MOVING SOUTHEAST AT 10 MPH. THE SHOWERS WILL BE NEAR LEHIGHTON AROUND
900 PM...WEISSPORT EAST AROUND 905 PM...PARRYVILLE...WANAMAKERS
AROUND 910 PM...BOWMANSTOWN...BELTZVILLE STATE PARK AROUND 915 PM...
JORDAN VALLEY...NEW TRIPOLI AROUND 925 PM AND EMERALD AROUND 935 PM.

VERY HEAVY RAIN WILL FALL FROM THIS SHOWER...AND AS MUCH AS ONE AND 
ONE-HALF INCHES OF RAIN COULD FALL IN LESS THAN AN HOUR. THIS MUCH 
RAIN WOULD CAUSE WATER TO POND ON ROADS AND QUICKLY FILL ROADSIDE 
DITCHES AND SMALL STREAMS.

LAT...LON 4070 7540 4049 7572 4068 7591 4074 7577
      4084 7592 4087 7595 4103 7571

$$

HAYES/CARDINALE

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 2:06 PM EDTSpecial Weather StatementPHIMorris, Sussex54 min
May 23, 2:58 PM EDTSpecial Weather StatementPHIMercer, Somerset62 min
May 23, 3:58 PM EDTSpecial Weather StatementPHIHunterdon, Morris, Sussex, Warren2 hr
May 22, 8:45 PM EDTAreal Flood AdvisoryPHICarbon, Lehigh55 min
May 23, 3:07 PM EDTSpecial Weather StatementPHIBerks, Carbon, Lehigh, Monroe, Northampton113 min
May 23, 4:52 PM EDTSpecial Weather StatementPHIBerks, Lehigh, Northampton113 min
May 23, 5:55 PM EDTSpecial Weather StatementPHIMontgomery65 min
May 23, 6:41 PM EDTSpecial Weather StatementPHIBerks, Lehigh, Montgomery94 min
May 23, 2:36 PM EDTSpecial Weather StatementPHIKent54 min
May 23, 3:42 PM EDTSpecial Weather StatementPHICaroline, Queen Anne's, Talbot63 min
May 23, 4:40 PM EDTSpecial Weather StatementPHICaroline, Kent, Queen Anne's, Talbot110 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.