A strong trough helped to produce a quasi linear convective system that moved across the Ohio Valley during the late evening hours into the early morning hours. The main threats from this system were damaging winds, sub severe hail, and isolated weak tornadoes.

Hail in MONTGOMERY, OHIO
From 07-SEP-12 23:12:00 to 07-SEP-12 23:16:00 (EST-5)
Location: WOODBOURNE
Magnitude: 0.88 
Reported by: Trained Spotter

Thunderstorm Wind in GREENE, OHIO
From 07-SEP-12 23:21:00 to 07-SEP-12 23:25:00 (EST-5)
Location: WRIGHT VIEW
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large branches were downed in south Fairborn due to damaging thunderstorm winds.

Thunderstorm Wind in CLERMONT, OHIO
From 07-SEP-12 23:46:00 to 07-SEP-12 23:50:00 (EST-5)
Location: GOSHEN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Large branches were broken near Goshen due to damaging thunderstorm winds.

Thunderstorm Wind in BROWN, OHIO
From 08-SEP-12 00:50:00 to 08-SEP-12 00:54:00 (EST-5)
Location: SLICKAWAY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

One tree was downed near Aberdeen due to damaging thunderstorm winds.

Thunderstorm Wind in MONTGOMERY, OHIO
From 07-SEP-12 23:13:00 to 07-SEP-12 23:17:00 (EST-5)
Location: BEAVERTOWN
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported downed in Kettering due to damaging thunderstorm winds.

Thunderstorm Wind in FRANKLIN, OHIO
From 08-SEP-12 01:11:00 to 08-SEP-12 01:15:00 (EST-5)
Location: GAHANNA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed on Crown Hill Court due to damaging thunderstorm winds.

Thunderstorm Wind in FRANKLIN, OHIO
From 08-SEP-12 01:06:00 to 08-SEP-12 01:10:00 (EST-5)
Location: GRANDVIEW HGTS
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A section of a roof was lifted off a U-Haul building and landed on an adjacent car wash business.

Thunderstorm Wind in CLERMONT, OHIO
From 07-SEP-12 23:42:00 to 07-SEP-12 23:46:00 (EST-5)
Location: NEWTONSVILLE
Magnitude: 50.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Damage occurred to several homes on Taylor Pike due to thunderstorm winds. The damage occurred to roofing shingles and flashing as well as four different garages all blown outward.

Thunderstorm Wind in FRANKLIN, OHIO
From 08-SEP-12 01:18:00 to 08-SEP-12 01:22:00 (EST-5)
Location: NEW ALBANY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Damage occurred to several trees and to a slate barn roof on Schleppi Road due to thunderstorm winds.

Tornado in CLERMONT, OHIO
From 07-SEP-12 23:36:00 to 07-SEP-12 23:37:00 (EST-5)
Location: WILLIAMS CORNERS
Tornado F-scale: EF0
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado touched down near the intersection of Route 131 and Belfast-Owensville Road. Three homes and a barn with a garage sustained anywhere from minor to major roof damage. A porch was lifted from a home and thrown several yards. Based on the damage surveyed, the maximum wind speed of this tornado was estimated at 70 to 75 miles per hour.

Thunderstorm Wind in FRANKLIN, OHIO
From 08-SEP-12 01:13:00 to 08-SEP-12 01:17:00 (EST-5)
Location: GAHANNA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed near the intersection of High and Walnut Streets due to damaging thunderstorm winds.