Alert archive / Pennsylvania / Special Weather Statements in 2015

Special Weather Statement, NWS Pittsburgh, PA

May 16, 2015Fayette County, Pennsylvania

NWS Pittsburgh, PA issued this special weather statement at May 16, 2015, 1:21 PM EDT for Fayette County, Pennsylvania. It was in force for 24 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 16, 2015, 1:21 PM EDT (17:21 UTC)
Expired: May 16, 2015, 1:45 PM EDT
In force: 24 min
Issued by: NWS Pittsburgh, PA

County Fayette County, PA

The radar

The Pittsburgh radar (KPBZ), 99 km from the middle of the area, began a volume at 17:24 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, 5.4 hours before the alert went out and 202 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 20 J/kg
Mixed-layer CIN: -210 J/kg
Mixed-layer LCL: 1233 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 95 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 Pittsburgh, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 16, 11:38 AM EDT	Special Weather Statement	PBZ	Washington, Westmoreland	52 min
May 16, 12:45 PM EDT	Special Weather Statement	PBZ	Westmoreland	45 min
May 16, 7:05 PM EDT	Areal Flood Advisory	PBZ	Fayette, Washington, Westmoreland	3 hr
May 16, 6:22 PM EDT	Special Weather Statement	PBZ	Belmont	38 min

Nearby

Special Weather Statements in Pennsylvania, 2015 Every 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.