Alert archive / Pennsylvania / Special Weather Statements in 2012

Special Weather Statement, NWS State College, PA

July 8, 2012Lebanon County, Pennsylvania

NWS State College, PA issued this special weather statement at Jul 8, 2012, 8:21 AM EDT for Lebanon County, Pennsylvania. It was in force for 39 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 8, 2012, 8:21 AM EDT (12:21 UTC)
Expired
Jul 8, 2012, 9:00 AM EDT
In force
39 min
Issued by
NWS State College, PA

County Lebanon County, PA

The radar

The Philadelphia radar (KDIX), 154 km from the middle of the area, began a volume at 12:23 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 0.4 hours before the alert went out and 176 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, Washington/Dulle, VA at 12:00Z on 2012-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2503 joules per kilogram.LCLLFCEL10008507005003002001001 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, Washington/Dulle, VA at 12:00Z on 2012-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
2503 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1631 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
70 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.

855 
WWUS81 KCTP 081221
SPSCTP

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
821 AM EDT SUN JUL 8 2012

PAZ059-066-081300-
LANCASTER PA-LEBANON PA-
821 AM EDT SUN JUL 8 2012

...A LINE OF THUNDERSTORMS WITH BRIEF HEAVY RAIN WILL AFFECT 
NORTHERN LANCASTER AND SOUTHEASTERN LEBANON COUNTIES THROUGH 
9 AM...

AT 819 AM EDT...A LINE OF THUNDERSTORMS WAS LOCATED FROM STRAUSSTOWN 
TO MOUNT GRETNA...MOVING EAST SOUTHEAST AT 40 MPH.

BRIEF WIND GUSTS TO 30 MPH AND HEAVY DOWNPOURS ARE POSSIBLE WITH 
THESE STORMS. THESE STORMS WILL AFFECT KLEINFELTERSVILLE... 
ROTHSVILLE AND TERRE HILL.

THIS WILL IMPACT THE PENNSYLVANIA TURNPIKE BETWEEN MILE MARKERS 261
AND 295.

LAT...LON 4011 7593 4004 7593 4002 7595 4022 7658
      4023 7658 4024 7658 4038 7646 4044 7634
      4037 7623 4037 7621 4030 7613 4015 7588
      4013 7587

$$

FORECASTER: LAMBERT

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 7, 8:59 PM EDTSevere Thunderstorm WarningCTPLancaster16 min
Jul 8, 12:56 PM EDTSpecial Weather StatementCTPFranklin49 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.