Two clusters of thunderstorms caused significant damage on the 9th.  During the morning hours, a large bow echo raced across the area causing widespread wind damage.  During the afternoon and evening hours, a large cluster of storms formed causing widespread wind damage and hail along with some flooding.

Thunderstorm Wind in HOCKING, OHIO
From 09-AUG-00 18:30:00 to 09-AUG-00 18:45:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Trees downed across the county.

Thunderstorm Wind in HIGHLAND, OHIO
From 09-AUG-00 17:20:00 to 09-AUG-00 17:30:00 (EST)
Location: BUFORD
Magnitude: 50 E
Property damage: 5K
Reported by: LAW ENFORCEMENT

Trees were knocked down by thunderstorm winds.

Thunderstorm Wind in BROWN, OHIO
From 09-AUG-00 18:45:00 to 09-AUG-00 19:00:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees downed.

Thunderstorm Wind in BROWN, OHIO
From 09-AUG-00 17:15:00 to 09-AUG-00 18:00:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: TRAINED SPOTTER

Thunderstorm winds knocked down trees in numerous locations.

Thunderstorm Wind in ADAMS, OHIO
From 09-AUG-00 18:00:00 to 09-AUG-00 18:30:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees knocked down across the county.

Thunderstorm Wind in MERCER, OHIO
From 09-AUG-00 08:40:00 to 09-AUG-00 08:45:00 (EST)
Location: SHARPSBURG
Magnitude: 50 E
Property damage: 5K
Reported by: LAW ENFORCEMENT

Large limbs were knocked down due to thunderstorm winds.

Thunderstorm Wind in PREBLE, OHIO
From 09-AUG-00 09:00:00 to 09-AUG-00 09:20:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: EMERGENCY MANAGER

Many trees knocked down across the county.

Thunderstorm Wind in SCIOTO, OHIO
From 09-AUG-00 18:15:00 to 09-AUG-00 18:40:00 (EST)
Location: MC DERMOTT
Magnitude: 60 E
Property damage: 50K
Reported by: EMERGENCY MANAGER

Hundreds of trees were knocked down across the county, including around 100 in West Portsmouth alone.  Nearly every road in the county with a ridge had trees across the road. Quarter size hail also fell around Mc Dermott.

Thunderstorm Wind in CHAMPAIGN, OHIO
From 09-AUG-00 09:15:00 to 09-AUG-00 09:20:00 (EST)
Location: ST PARIS
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Trees were knocked down by thunderstorm winds, some of which fell across roads.

Hail in CLERMONT, OHIO
From 09-AUG-00 17:00:00 to 09-AUG-00 18:45:00 (EST)
Location: COUNTYWIDE
Magnitude: 1.00 
Property damage: 25K
Reported by: TRAINED SPOTTER

A thunderstorm remained over the county for nearly two hours producing quarter size hail in Amelia and Batavia, nickel size in Felicity, and hail large enough to knock out windows of a school building in Williamsburg.  Trees were also knocked down in various locations across the county.

Thunderstorm Wind in MIAMI, OHIO
From 09-AUG-00 09:11:00 to 09-AUG-00 09:25:00 (EST)
Location: PIQUA
Magnitude: 50 E
Property damage: 50K
Reported by: TRAINED SPOTTER

Many trees and power lines  were blown down across the county.  In Piqua alone, at least 130 trees were knocked down, 12 homes damaged severely, and 3 vehicles were nearly destroyed.

Thunderstorm Wind in DARKE, OHIO
From 09-AUG-00 08:35:00 to 09-AUG-00 08:55:00 (EST)
Location: UNION CITY
Magnitude: 50 E
Property damage: 30K
Reported by: TRAINED SPOTTER

Numerous trees and large limbs were knocked down in many locations across the county, including Hollansburg, New Madison,Versailles, Union City and Arcanum. One tree fell on a house in Arcanum.

Lightning in HAMILTON, OHIO
From 09-AUG-00 19:08:00 to 09-AUG-00 19:08:00 (EST)
Location: CINCINNATI
Property damage: 80K
Reported by: FIRE DEPT/RESCUE SQUAD

Lightning struck a home causing a fire on the second floor.

Thunderstorm Wind in HAMILTON, OHIO
From 09-AUG-00 18:35:00 to 09-AUG-00 19:30:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 50K
Reported by: NEWSPAPER

Severe thunderstorms continued across the county knocking down numerous trees.

Thunderstorm Wind in ROSS, OHIO
From 09-AUG-00 10:15:00 to 09-AUG-00 10:30:00 (EST)
Location: CHILLICOTHE
Magnitude: 50 E
Property damage: 10K
Reported by: BROADCAST MEDIA

Strong winds blew trailers over at the county fair.

Hail in DELAWARE, OHIO
From 09-AUG-00 15:00:00 to 09-AUG-00 15:05:00 (EST)
Location: SUNBURY
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Tornado in SCIOTO, OHIO
From 09-AUG-00 18:50:00 to 09-AUG-00 19:00:00 (EST)
Location: SCIOTOVILLE
Tornado F-scale: F1
Property damage: 300K
Reported by: EMERGENCY MANAGER

A tornado was embedded in an area of straight line winds near Wheelersburg.  Trees and power lines were knocked down on vehicles, damage occurred to a few homes, and two rail cars were knocked off their tracks.

Thunderstorm Wind in HOCKING, OHIO
From 09-AUG-00 19:05:00 to 09-AUG-00 19:30:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees knocked down across the county.

Thunderstorm Wind in ADAMS, OHIO
From 09-AUG-00 17:15:00 to 09-AUG-00 17:30:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees downed across the county.

Thunderstorm Wind in CLARK, OHIO
From 09-AUG-00 09:35:00 to 09-AUG-00 09:40:00 (EST)
Location: SPRINGFIELD
Magnitude: 50 E
Property damage: 5K
Reported by: TRAINED SPOTTER

Numerous trees were knocked down in Jacksonville.

Thunderstorm Wind in MADISON, OHIO
From 09-AUG-00 09:45:00 to 09-AUG-00 10:00:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Trees and power lines knocked down across the county.

Thunderstorm Wind in PICKAWAY, OHIO
From 09-AUG-00 10:15:00 to 09-AUG-00 10:20:00 (EST)
Location: ASHVILLE
Magnitude: 60 E
Property damage: 50K
Reported by: TRAINED SPOTTER

Thunderstorm winds blew the roof off a house.

Thunderstorm Wind in ROSS, OHIO
From 09-AUG-00 17:30:00 to 09-AUG-00 17:40:00 (EST)
Location: CLARKSBURG
Magnitude: 50 E
Property damage: 50K
Reported by: BROADCAST MEDIA

Thunderstorm winds knocked trees down and blew a roof of a garage.

Thunderstorm Wind in GREENE, OHIO
From 09-AUG-00 09:30:00 to 09-AUG-00 09:45:00 (EST)
Location: FAIRBORN
Magnitude: 50 E
Property damage: 25K
Reported by: TRAINED SPOTTER

Numerous trees and power lines were knocked down at several locations across the county.  Some of the trees fell across roads in Xenia.

Thunderstorm Wind in HAMILTON, OHIO
From 09-AUG-00 17:00:00 to 09-AUG-00 17:45:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 50K
Reported by: TRAINED SPOTTER

Severe thunderstorms began and lasted for nearly 3 hours, knocking down numerous trees.

Flash Flood in BROWN, OHIO
From 09-AUG-00 18:45:00 to 09-AUG-00 19:15:00 (EST)
Location: COUNTYWIDE
Property damage: 5K
Reported by: LAW ENFORCEMENT

Heavy rainfall caused flooded roads across the county.

Flash Flood in CLERMONT, OHIO
From 09-AUG-00 19:00:00 to 09-AUG-00 19:45:00 (EST)
Location: COUNTYWIDE
Property damage: 5K
Reported by: LAW ENFORCEMENT

Heavy rainfall flooded roads across the county.

Hail in AUGLAIZE, OHIO
From 09-AUG-00 12:40:00 to 09-AUG-00 12:50:00 (EST)
Location: ST MARYS
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in LOGAN, OHIO
From 09-AUG-00 13:30:00 to 09-AUG-00 13:45:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 5K
Reported by: LAW ENFORCEMENT

Trees were knocked down in many locations across the county.

Flash Flood in ADAMS, OHIO
From 09-AUG-00 19:10:00 to 09-AUG-00 20:30:00 (EST)
Location: COUNTYWIDE
Property damage: 5K
Reported by: LAW ENFORCEMENT

Heavy rain caused flooded roads across the county.

Lightning in LOGAN, OHIO
From 09-AUG-00 12:50:00 to 09-AUG-00 12:50:00 (EST)
Location: HUNTSVILLE
Property damage: 50K
Reported by: NEWSPAPER

Lightning struck a house causing a fire in the attic.

Thunderstorm Wind in SCIOTO, OHIO
From 09-AUG-00 10:57:00 to 09-AUG-00 11:15:00 (EST)
Location: CLIFFORD
Magnitude: 50 E
Property damage: 10K
Reported by: EMERGENCY MANAGER

Numerous trees and power lines downed.

Thunderstorm Wind in MERCER, OHIO
From 09-AUG-00 12:00:00 to 09-AUG-00 12:15:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 5K
Reported by: LAW ENFORCEMENT

Thunderstorm winds knocked down several large limbs across the county.

Hail in UNION, OHIO
From 09-AUG-00 14:59:00 to 09-AUG-00 15:05:00 (EST)
Location: MARYSVILLE
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT

Hail in FRANKLIN, OHIO
From 09-AUG-00 15:21:00 to 09-AUG-00 15:30:00 (EST)
Location: DUBLIN
Magnitude: 0.88 
Property damage: 5K
Reported by: LAW ENFORCEMENT

Nickel size hail fell and some trees were knocked down in Dublin.

Thunderstorm Wind in LICKING, OHIO
From 09-AUG-00 10:30:00 to 09-AUG-00 10:50:00 (EST)
Location: NEWARK
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees downed around Newark.  Also, quarter size hail fell at Kirkersville.

Thunderstorm Wind in HOCKING, OHIO
From 09-AUG-00 10:40:00 to 09-AUG-00 11:00:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Trees were knocked down at numerous locations across the county.

Thunderstorm Wind in FRANKLIN, OHIO
From 09-AUG-00 10:10:00 to 09-AUG-00 10:25:00 (EST)
Location: HILLIARD
Magnitude: 52 M
Property damage: 50K
Reported by: EMERGENCY MANAGER

Numerous trees and power lines were knocked down around the county, especially around Dublin.  Also around Dublin, a roof of a strip mall was damaged and a tree fell on a home. A spotter reported a wind gust to 60 mph in Hilliard and dime size hail was reported in Reynoldsburg. A 100 foot tree was knocked down on to a tent at Ohio State University.  Four workers were injured.

Thunderstorm Wind in FAIRFIELD, OHIO
From 09-AUG-00 10:27:00 to 09-AUG-00 10:45:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees downed across the county.

Thunderstorm Wind in SHELBY, OHIO
From 09-AUG-00 09:10:00 to 09-AUG-00 09:30:00 (EST)
Location: FT LORAMIE
Magnitude: 50 E
Property damage: 60K
Reported by: LAW ENFORCEMENT

Numerous trees were downed in Ft. Loramie, Newport and Sidney and a barn was damaged near Hardin. In Sidney, some trees fell on houses, some falling trees ripped up sidewalks, and a roof was blown off a shed.

Thunderstorm Wind in MONTGOMERY, OHIO
From 09-AUG-00 09:00:00 to 09-AUG-00 09:20:00 (EST)
Location: LITTLE YORK
Magnitude: 50 E
Property damage: 10K
Reported by: TRAINED SPOTTER

Thunderstorms knocked down trees and large limbs.

Hail in MERCER, OHIO
From 09-AUG-00 14:43:00 to 09-AUG-00 14:50:00 (EST)
Location: COLDWATER
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in SHELBY, OHIO
From 09-AUG-00 15:30:00 to 09-AUG-00 15:45:00 (EST)
Location: SIDNEY
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees and power lines downed.

Thunderstorm Wind in HAMILTON, OHIO
From 09-AUG-00 17:50:00 to 09-AUG-00 18:30:00 (EST)
Location: GROESBECK
Magnitude: 53 M
Property damage: 100K
Reported by: OFFICIAL NWS OBS.

Severe thunderstorms remained across the county for nearly three hours causing around 5000 trees to be knocked down.  The locations with the most trees down were Madisonville, Hyde Park, Mount Lookout and Mount Washington.  Lunken Field Municipal Airport recorded a wind gust to 62 mph during the storm.  Also, quarter size hail fell in Colerain and walnut size hail fell in Groesbeck.

Thunderstorm Wind in PICKAWAY, OHIO
From 09-AUG-00 17:40:00 to 09-AUG-00 17:50:00 (EST)
Location: ASHVILLE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees knocked down across the county.

Thunderstorm Wind in HOCKING, OHIO
From 09-AUG-00 17:05:00 to 09-AUG-00 17:15:00 (EST)
Location: ROCKBRIDGE
Magnitude: 50 E
Property damage: 5K
Reported by: LAW ENFORCEMENT

Thunderstorm winds knocked down trees in Rockbridge.

Hail in WARREN, OHIO
From 09-AUG-00 17:25:00 to 09-AUG-00 17:35:00 (EST)
Location: MASON
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Thunderstorm Wind in CLARK, OHIO
From 09-AUG-00 16:15:00 to 09-AUG-00 16:20:00 (EST)
Location: SPRINGFIELD
Magnitude: 50 E
Property damage: 5K
Reported by: LAW ENFORCEMENT

Thunderstorm winds knocked down several trees.

Thunderstorm Wind in PREBLE, OHIO
From 09-AUG-00 16:45:00 to 09-AUG-00 17:15:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: LAW ENFORCEMENT

Numerous trees knocked down across the county.

Thunderstorm Wind in FAIRFIELD, OHIO
From 09-AUG-00 16:50:00 to 09-AUG-00 17:10:00 (EST)
Location: COUNTYWIDE
Magnitude: 50 E
Property damage: 10K
Reported by: GENERAL PUBLIC

Trees knocked down across the county.

Hail in BUTLER, OHIO
From 09-AUG-00 16:55:00 to 09-AUG-00 17:25:00 (EST)
Location: COUNTYWIDE
Magnitude: 1.00 
Property damage: 10K
Reported by: TRAINED SPOTTER

Quarter size hail occurred in Hamilton and West Chester.  Also, trees were knocked down across the county.