A large upper air trough over eastern Canada helped maintain an east to west front across the lower Great Lakes.  South of this boundary was warm, moist and unstable. Dew points were near 70 degrees. A mesoscale convective system raced out of Indiana and across Ohio during the late night and predawn hours.  Cloud top temperatures on satellite imagery reached their coldest just west of Perry County, then began to warm as the complex crossed southeast Ohio. Bow echoes were noted on the leading edge of the complex, causing wind damage.
In the aftermath, Perry County Sheriff Barker declared a Level 2 road emergency.  Perry County commissioners and the mayors of Junction City and New Lexington declared a state of emergency.  Many residents were without electricity.  Later Governor Ted Stickland issued an emergency declaration for Perry County in order to gain the support of the Ohio Department of Transportion in tree removal from roadways.
Near the Vinton and Jackson County line, a boy scout camp was hit, but thankfully there was just one minor injury.

Thunderstorm Wind in PERRY, OHIO
From 22-JUL-08 03:11:00 to 22-JUL-08 03:11:00 (EST-5)
Location: NEW LEXINGTON
Magnitude: 70.00 EG
Property damage: 200.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several large trees fell about town. A roof to a funeral home was also blown off.

Thunderstorm Wind in ATHENS, OHIO
From 22-JUL-08 03:20:00 to 22-JUL-08 03:20:00 (EST-5)
Location: THE PLAINS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Numerous trees or branches fell across roads.

Thunderstorm Wind in JACKSON, OHIO
From 22-JUL-08 03:16:00 to 22-JUL-08 03:16:00 (EST-5)
Location: BYER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees fell across Route 327.

Thunderstorm Wind in MORGAN, OHIO
From 22-JUL-08 03:30:00 to 22-JUL-08 03:30:00 (EST-5)
Location: STOCKPORT
Magnitude: 74.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several trees were snapped or uprooted.  A few trees damaged homes.

Thunderstorm Wind in WASHINGTON, OHIO
From 22-JUL-08 04:15:00 to 22-JUL-08 04:15:00 (EST-5)
Location: MARIETTA
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees fell in scattered locations about the town.  Two large umbrellas, used to shelter kids from the sun, were ripped from their tables and blew away at the YMCA.

Thunderstorm Wind in VINTON, OHIO
From 22-JUL-08 03:10:00 to 22-JUL-08 03:10:00 (EST-5)
Location: RAY
Magnitude: 91.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Two microbursts hit the Chief Logan Reservation, a summer camp for Boy Scouts. It occurred during the predawn hours. Luckily, only one scout received a minor injury, despite the large number of occupied tents in the damage paths. One large tree fell right onto a tent cot, but the boys had left earlier to seek safer shelter.
There was extensive softwood tree damage found in 2 distinct paths in the campground.  Numerous pine trees were snapped and uprooted in a diverging pattern.  Three tents were destroyed by fallen trees.  The damage paths of both microbursts were approximately 500 yards in length with a width of 25 to 40 yards.

Thunderstorm Wind in MEIGS, OHIO
From 22-JUL-08 03:50:00 to 22-JUL-08 03:50:00 (EST-5)
Location: POMEROY
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and large branches were blown down.

Thunderstorm Wind in WASHINGTON, OHIO
From 22-JUL-08 04:05:00 to 22-JUL-08 04:05:00 (EST-5)
Location: BEVERLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and large branches were blown down.  Some of the trees knocked down power lines.  The community was without power for about 4 to 5 hours.

Thunderstorm Wind in PERRY, OHIO
From 22-JUL-08 02:58:00 to 22-JUL-08 02:58:00 (EST-5)
Location: JUNCTION CITY
Magnitude: 96.00 EG
Property damage: 300.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Most of the damage was concentrated along Route 94 or Garey Road, to the north and east of the town of Junction City. Trees were uprooted, power lines downed, and a roof was blown off a farm house.  Several other roofs were damaged.  Bales of hay were thrown about pastures.

Thunderstorm Wind in VINTON, OHIO
From 22-JUL-08 03:05:00 to 22-JUL-08 03:05:00 (EST-5)
Location: MC ARTHUR
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees and large branches were blown down.