A mid and upper level low developed over West Virginia on the 12th, then drifted into southeast Ohio by that evening.  This stopped the expected dry air intrusion along the Ohio Valley.  The low level flow brought an increase in moisture again from the east.
Rain showers developed over the mountainous counties by midday.  Plenty of sunshine in the western lowlands increased instability.  Clusters of convection developed during the afternoon with a slow west or southwest drift.

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:01:00 to 12-JUL-13 18:01:00 (EST-5)
Location: CHARLESTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:05:00 to 12-JUL-13 18:05:00 (EST-5)
Location: GUTHRIE
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:07:00 to 12-JUL-13 18:07:00 (EST-5)
Location: RUTH
Magnitude: 0.88 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:12:00 to 12-JUL-13 18:12:00 (EST-5)
Location: (CRW) YEAGER ARPT
Magnitude: 1.00 
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Hail as large as quarters fell along Interstate 77.

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:24:00 to 12-JUL-13 18:24:00 (EST-5)
Location: RUTH
Magnitude: 1.00 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:32:00 to 12-JUL-13 18:32:00 (EST-5)
Location: ST ALBANS
Magnitude: 1.25 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 17:33:00 to 12-JUL-13 17:33:00 (EST-5)
Location: ELKVIEW
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:32:00 to 12-JUL-13 18:32:00 (EST-5)
Location: CHARLESTON
Magnitude: 0.88 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Flash Flood in KANAWHA, WEST VIRGINIA
From 12-JUL-13 18:15:00 to 12-JUL-13 20:00:00 (EST-5)
Location: SISSONVILLE
Flood cause: Heavy Rain
Property damage: 90.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Rains of 1.25 to 1.75 inches in an hour or less over wet terrain caused small streams to flood roads.  Streams such as Sugar Creek, Kanawha Two Mile, Legg Fork, and Magazine Branch flooded.
A couple of parked vehicles were damaged by flood waters from Kanawha Two Mile.  The water from Kanawha Two Mile also got under one mobile home and damaged some insulation.

Flash Flood in ROANE, WEST VIRGINIA
From 12-JUL-13 18:00:00 to 12-JUL-13 19:30:00 (EST-5)
Location: KETTLE
Flood cause: Heavy Rain
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Rains of 1 to 1.75 inches fell over wet terrain in about an hour.  This caused small streams in extreme southern Roane County to flood.
Green Creek flooded, especially its Left Fork.  Roads were flooded and driveways were blocked.  One truck was swept downstream.  The vehicle was destroyed.

Flash Flood in NICHOLAS, WEST VIRGINIA
From 12-JUL-13 22:00:00 to 13-JUL-13 01:30:00 (EST-5)
Location: MUDDLETY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Slow moving downpours caused streams to flood and block roads.
A spotter in Craigsville measured 2.42 inches of rain, while another spotter near Runa measured 2.37 inches.
For example, Route 55 south of Craigsville was flooded with water 6 to 12 inches deep.  Meadow Creek had several feet of water over Runa Road.  Muddlety Creek also flooded roads.
There was no damage to structures reported to the county emergency management.