A Mesoscale Convective System developed along a surface wave over Illinois and Indiana during mid to late afternoon. It evolved into a squall line as it moved into the area, although there were some discrete storms that developed out ahead of the squall line. The squall line weakened as it progressed east across the area through the evening hours.

Thunderstorm Wind in PREBLE, OHIO
From 15-JUN-10 20:25:00 to 15-JUN-10 20:28:00 (EST-5)
Location: WEST ALEXANDRIA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two trees were reported down due to damaging thunderstorm winds.

Thunderstorm Wind in BROWN, OHIO
From 15-JUN-10 20:26:00 to 15-JUN-10 20:28:00 (EST-5)
Location: ABERDEEN
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The damage surveyed consisted of large and small tree limbs blown down in an area along the Ohio River which extended from Ferry Street to one-half mile west of Market Street.  Also, on Mountain Street, several small and large tree limbs were blown down.  In addition, the police department had several windows broken during the storm.  All the damage surveyed in these locations indicated straight line wind damage.

Thunderstorm Wind in MONTGOMERY, OHIO
From 15-JUN-10 20:42:00 to 15-JUN-10 20:46:00 (EST-5)
Location: ENGLEWOOD
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

A large tree limb fell onto a house.

Thunderstorm Wind in MONTGOMERY, OHIO
From 15-JUN-10 20:46:00 to 15-JUN-10 20:50:00 (EST-5)
Location: MIAMISBURG
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down due to damaging thunderstorm winds.

Thunderstorm Wind in MONTGOMERY, OHIO
From 15-JUN-10 20:56:00 to 15-JUN-10 21:00:00 (EST-5)
Location: FT MC KINLEY
Magnitude: 53.00 MG
Reported by: Amateur Radio

Thunderstorm Wind in GREENE, OHIO
From 15-JUN-10 21:08:00 to 15-JUN-10 21:12:00 (EST-5)
Location: BEAVERCREEK
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A roof was torn off of a garden pagoda due to damaging thunderstorm winds.

Thunderstorm Wind in ADAMS, OHIO
From 15-JUN-10 21:00:00 to 15-JUN-10 21:04:00 (EST-5)
Location: PEEBLES
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were reported down due to damaging thunderstorm winds.

Hail in SCIOTO, OHIO
From 15-JUN-10 20:58:00 to 15-JUN-10 21:02:00 (EST-5)
Location: FRANKLIN FURNACE
Magnitude: 0.75 
Reported by: Public

Hail in ADAMS, OHIO
From 15-JUN-10 20:40:00 to 15-JUN-10 20:50:00 (EST-5)
Location: WINCHESTER
Magnitude: 0.88 
Reported by: Trained Spotter

Thunderstorm Wind in MONTGOMERY, OHIO
From 15-JUN-10 21:27:00 to 15-JUN-10 21:36:00 (EST-5)
Location: FOREST PARK
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were reported down in the area.

Thunderstorm Wind in GREENE, OHIO
From 15-JUN-10 21:12:00 to 15-JUN-10 21:16:00 (EST-5)
Location: FAIRBORN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees were reported down due to damaging thunderstorm winds.

Thunderstorm Wind in CLARK, OHIO
From 15-JUN-10 21:20:00 to 15-JUN-10 21:25:00 (EST-5)
Location: ENON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Amateur Radio

A tree was uprooted and large branches were reported down due to damaging thunderstorm winds.

Thunderstorm Wind in CHAMPAIGN, OHIO
From 15-JUN-10 21:37:00 to 15-JUN-10 21:41:00 (EST-5)
Location: CATAWBA STATION
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were reported down with one tree falling onto a power line.

Flash Flood in HAMILTON, OHIO
From 15-JUN-10 20:49:00 to 16-JUN-10 00:00:00 (EST-5)
Location: CINCINNATI
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

High water was reported over Interstate 74 and Interstate 75.