Alert archive / West Virginia / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 46, NWS Pittsburgh, PA

June 8, 2015Preston County, West Virginia

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jun 8, 2015, 2:20 PM EDT for Preston County, West Virginia. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 8, 2015, 2:20 PM EDT (18:20 UTC)
Expired
Jun 8, 2015, 2:45 PM EDT
In force
25 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Preston County, WV

The radar

The Pittsburgh radar (KPBZ), 127 km from the middle of the area, began a volume at 18:21 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

Pittsburgh, PA (KAGC), launched 12:00Z, 6.3 hours before the alert went out and 111 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, Pittsburgh, PA at 12:00Z on 2015-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 269 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, Pittsburgh, PA at 12:00Z on 2015-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 322 square meters per square second.193958Sfc1 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
269 J/kg
Mixed-layer CIN
-74 J/kg
Mixed-layer LCL
1140 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
322 m²/s²
0-3 km storm-relative helicity
321 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.2

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 1:19 PM EDTSpecial Weather StatementPBZWestmoreland26 min
Jun 8, 2:01 PM EDTSpecial Weather StatementPBZWashington29 min
Jun 8, 3:06 PM EDTSpecial Weather StatementPBZWestmoreland39 min
Jun 8, 4:49 PM EDTSpecial Weather StatementPBZArmstrong26 min
Jun 8, 6:28 PM EDTSpecial Weather StatementPBZAllegheny, Beaver32 min
Jun 8, 1:46 PM EDTSpecial Weather StatementPBZMonongalia14 min
Jun 8, 1:51 PM EDTSpecial Weather StatementPBZMarion24 min
Jun 8, 2:09 PM EDTSpecial Weather StatementPBZPreston21 min
Jun 8, 2:38 PM EDTSpecial Weather StatementPBZPreston37 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2015Every severe thunderstorm warning 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.