Alert archive / Pennsylvania / Special Weather Statements in 2015

Special Weather Statement, NWS State College, PA

January 7, 20154 counties in Pennsylvania

NWS State College, PA issued this special weather statement at Jan 7, 2015, 5:39 PM EST for 4 counties in 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
Jan 7, 2015, 5:39 PM EST (22:39 UTC)
Expired
Jan 7, 2015, 6:30 PM EST
In force
51 min
Issued by
NWS State College, PA

Counties Blair County, PA, Cambria County, PA, Cumberland County, PA, Huntingdon County, PA

The radar

The State College radar (KCCX), 71 km from the middle of the area, began a volume at 22:41 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, 10.7 hours before the alert went out and 164 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 2015-01-07Temperature 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, Washington/Dulle, VA at 12:00Z on 2015-01-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939587897117136156175Sfc1 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
1452 m above ground
0-6 km bulk shear
114 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
34 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.

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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 6, 10:35 PM ESTLake Effect Snow WarningCTPWarren23 hr
Jan 7, 7:31 AM ESTSpecial Weather StatementCTPMcKean59 min
Jan 7, 8:46 AM ESTSpecial Weather StatementCTPWarren29 min
Jan 7, 9:42 AM ESTSpecial Weather StatementCTPCameron, Elk, McKean, Potter, Tioga63 min
Jan 7, 10:47 AM ESTSpecial Weather StatementCTPCambria, Cameron, Centre, Clearfield, Clinton, Columbia and 6 more73 min
Jan 7, 11:58 AM ESTSpecial Weather StatementCTPCentre, Clearfield, Columbia, Montour, Northumberland, Snyder and 1 more62 min
Jan 7, 1:04 PM ESTSpecial Weather StatementCTPBlair, Cambria, Columbia, Dauphin, Huntingdon, Juniata and 6 more26 min
Jan 7, 1:50 PM ESTSpecial Weather StatementCTPBlair, Cambria, Cumberland, Dauphin, Huntingdon, Juniata and 2 more25 min
Jan 7, 2:40 PM ESTSpecial Weather StatementCTPBlair, Cambria, Cumberland, Huntingdon, York80 min
Jan 7, 4:59 PM ESTSpecial Weather StatementCTPBlair, Cambria, Huntingdon31 min
Jan 7, 6:51 PM ESTSpecial Weather StatementCTPAdams, Blair, Cambria54 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.