Alert archive / Pennsylvania / Special Weather Statements in 2015

Special Weather Statement, NWS Philadelphia/Mount Holly

June 12, 2015Lebanon County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 12, 2015, 9:39 PM EDT for Lebanon County, Pennsylvania. It was in force for 51 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
Jun 12, 2015, 9:39 PM EDT (01:39 UTC)
Expired
Jun 12, 2015, 10:30 PM EDT
In force
51 min
Issued by
NWS Philadelphia/Mount Holly

County Lebanon County, PA

The radar

The Philadelphia radar (KDIX), 162 km from the middle of the area, began a volume at 01:42 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 00:00Z, 1.7 hours before the alert went out and 203 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 00:00Z on 2015-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 226 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 00:00Z on 2015-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 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
226 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
1388 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
128 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.

197 
WWUS81 KPHI 130139
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
939 PM EDT FRI JUN 12 2015
 
PAZ060-130230-
BERKS-
939 PM EDT FRI JUN 12 2015

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN BERKS
COUNTY...

AT 938 PM EDT...A LINE OF SHOWERS AND SCATTERED STRONG THUNDERSTORMS 
WAS ALONG A LINE EXTENDING FROM NEAR REBUCK TO NEAR MARYSVILLE TO 
NEAR SCHLUSSER...AND MOVING EAST AT 40 MPH.

WIND GUSTS UP TO 45 MPH ARE POSSIBLE WITH THESE STORMS.

THESE STORMS WILL BE NEAR...
  NEWMANSTOWN AROUND 1030 PM EDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE PORT CLINTON.

LAT...LON 4052 7634 4052 7625 4058 7603 4064 7599
      4063 7599 4059 7602 4055 7603 4031 7614
      4036 7621 4037 7623 4049 7643
TIME...MOT...LOC 0138Z 281DEG 33KT 4073 7678 4038 7694 4026 7722 
$$

DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 9:55 PM EDTSpecial Weather StatementPHIBerks50 min
Jun 13, 6:40 PM EDTSpecial Weather StatementPHIKent, Queen Anne's35 min

Nearby

Special Weather Statements in Pennsylvania, 2015Every special weather statement in 2015

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.