Ohio, 2000

Tornado and Flash Flooding in Ohio, August 9, 2000

August 9, 2000 · NWS ILN · 51 events in 28 counties and zones

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.

Where it happened

Every event with a place to put it; 5 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
5
Property damage
$1.3 million
Crop damage
None recorded
Events
51

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS ILN wrote it up.

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.

The radar

The Cincinnati radar (KILN), 122 km away, was scanning. The volume nearest the first event began at 13:34 UTC.

Open the radar archive at this moment

Event by event

37 thunderstorm wind, 8 hail, 3 flash flood, 2 lightning, 1 tornado. Local standard time, as filed.

Thunderstorm Wind, Darke

When
August 9, 8:35 AM EST to 8:55 AM EST
Where
Darke County, Union City
Measured
50 kt (58 mph)
Property damage
$30,000
Reported by
TRAINED SPOTTER
Coordinates
40.217, -84.800

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.

Thunderstorm Wind, Mercer

When
August 9, 8:40 AM EST to 8:45 AM EST
Where
Mercer County, Sharpsburg
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
40.367, -84.700

Large limbs were knocked down due to thunderstorm winds.

Thunderstorm Wind, Preble

When
August 9, 9:00 AM EST to 9:20 AM EST
Where
Preble County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
EMERGENCY MANAGER
Coordinates
39.750, -84.633

Many trees knocked down across the county.

Thunderstorm Wind, Montgomery

When
August 9, 9:00 AM EST to 9:20 AM EST
Where
Montgomery County, Little York
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
TRAINED SPOTTER
Coordinates
39.850, -84.267

Thunderstorms knocked down trees and large limbs.

Thunderstorm Wind, Shelby

When
August 9, 9:10 AM EST to 9:30 AM EST
Where
Shelby County, Ft Loramie
Measured
50 kt (58 mph)
Property damage
$60,000
Reported by
LAW ENFORCEMENT
Coordinates
40.350, -84.367

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, Miami

When
August 9, 9:11 AM EST to 9:25 AM EST
Where
Miami County, Piqua
Measured
50 kt (58 mph)
Property damage
$50,000
Reported by
TRAINED SPOTTER
Coordinates
40.150, -84.233

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, Champaign

When
August 9, 9:15 AM EST to 9:20 AM EST
Where
Champaign County, St Paris
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
40.117, -83.950

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

Thunderstorm Wind, Greene

When
August 9, 9:30 AM EST to 9:45 AM EST
Where
Greene County, Fairborn
Measured
50 kt (58 mph)
Property damage
$25,000
Reported by
TRAINED SPOTTER
Coordinates
39.817, -84.017

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, Clark

When
August 9, 9:35 AM EST to 9:40 AM EST
Where
Clark County, 3 mi NW of Springfield
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
TRAINED SPOTTER
Coordinates
39.950, -83.833

Numerous trees were knocked down in Jacksonville.

Thunderstorm Wind, Madison

When
August 9, 9:45 AM EST to 10:00 AM EST
Where
Madison County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.883, -83.450

Trees and power lines knocked down across the county.

Thunderstorm Wind, Franklin

When
August 9, 10:10 AM EST to 10:25 AM EST
Where
Franklin County, Hilliard
Measured
52 kt (60 mph)
Injuries
5 direct, 0 indirect
Property damage
$50,000
Reported by
EMERGENCY MANAGER
Coordinates
40.033, -83.150

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, Pickaway

When
August 9, 10:15 AM EST to 10:20 AM EST
Where
Pickaway County, Ashville
Measured
60 kt (69 mph)
Property damage
$50,000
Reported by
TRAINED SPOTTER
Coordinates
39.717, -82.950

Thunderstorm winds blew the roof off a house.

Thunderstorm Wind, Ross

When
August 9, 10:15 AM EST to 10:30 AM EST
Where
Ross County, Chillicothe
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
BROADCAST MEDIA
Coordinates
39.333, -82.983

Strong winds blew trailers over at the county fair.

Thunderstorm Wind, Fairfield

When
August 9, 10:27 AM EST to 10:45 AM EST
Where
Fairfield County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.733, -82.567

Numerous trees downed across the county.

Thunderstorm Wind, Licking

When
August 9, 10:30 AM EST to 10:50 AM EST
Where
Licking County, Newark
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
40.067, -82.400

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

Thunderstorm Wind, Hocking

When
August 9, 10:40 AM EST to 11:00 AM EST
Where
Hocking County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.517, -82.450

Trees were knocked down at numerous locations across the county.

Thunderstorm Wind, Scioto

When
August 9, 10:57 AM EST to 11:15 AM EST
Where
Scioto County, 3 mi N of Clifford
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
EMERGENCY MANAGER
Coordinates
38.967, -83.017

Numerous trees and power lines downed.

Thunderstorm Wind, Mercer

When
August 9, 12:00 PM EST to 12:15 PM EST
Where
Mercer County, Countywide
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
40.550, -84.617

Thunderstorm winds knocked down several large limbs across the county.

Hail, Auglaize

When
August 9, 12:40 PM EST to 12:50 PM EST
Where
Auglaize County, St Marys
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.533, -84.383

Lightning, Logan

When
August 9, 12:50 PM EST
Where
Logan County, Huntsville
Property damage
$50,000
Reported by
NEWSPAPER
Coordinates
40.388, -83.766 (the zone’s center; the record gives no point)

Lightning struck a house causing a fire in the attic.

Thunderstorm Wind, Logan

When
August 9, 1:30 PM EST to 1:45 PM EST
Where
Logan County, Countywide
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
40.383, -83.750

Trees were knocked down in many locations across the county.

Hail, Mercer

When
August 9, 2:43 PM EST to 2:50 PM EST
Where
Mercer County, Coldwater
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.400, -84.617

Hail, Union

When
August 9, 2:59 PM EST to 3:05 PM EST
Where
Union County, Marysville
Measured
0.88 in hail
Reported by
LAW ENFORCEMENT
Coordinates
40.233, -83.367

Hail, Delaware

When
August 9, 3:00 PM EST to 3:05 PM EST
Where
Delaware County, 7 mi N of Sunbury
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
40.333, -82.850

Hail, Franklin

When
August 9, 3:21 PM EST to 3:30 PM EST
Where
Franklin County, Dublin
Measured
0.88 in hail
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
40.100, -83.117

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

Thunderstorm Wind, Shelby

When
August 9, 3:30 PM EST to 3:45 PM EST
Where
Shelby County, Sidney
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
40.283, -84.150

Numerous trees and power lines downed.

Thunderstorm Wind, Clark

When
August 9, 4:15 PM EST to 4:20 PM EST
Where
Clark County, Springfield
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
39.917, -83.800

Thunderstorm winds knocked down several trees.

Thunderstorm Wind, Preble

When
August 9, 4:45 PM EST to 5:15 PM EST
Where
Preble County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.750, -84.633

Numerous trees knocked down across the county.

Thunderstorm Wind, Fairfield

When
August 9, 4:50 PM EST to 5:10 PM EST
Where
Fairfield County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
GENERAL PUBLIC
Coordinates
39.733, -82.567

Trees knocked down across the county.

Hail, Butler

When
August 9, 4:55 PM EST to 5:25 PM EST
Where
Butler County, Countywide
Measured
1 in hail
Property damage
$10,000
Reported by
TRAINED SPOTTER
Coordinates
39.450, -84.583

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

Hail, Clermont

When
August 9, 5:00 PM EST to 6:45 PM EST
Where
Clermont County, Countywide
Measured
1 in hail
Property damage
$25,000
Reported by
TRAINED SPOTTER
Coordinates
38.983, -84.150

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, Hamilton

When
August 9, 5:00 PM EST to 5:45 PM EST
Where
Hamilton County, Countywide
Measured
50 kt (58 mph)
Property damage
$50,000
Reported by
TRAINED SPOTTER
Coordinates
39.150, -84.533

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

Thunderstorm Wind, Hocking

When
August 9, 5:05 PM EST to 5:15 PM EST
Where
Hocking County, Rockbridge
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
39.583, -82.533

Thunderstorm winds knocked down trees in Rockbridge.

Thunderstorm Wind, Brown

When
August 9, 5:15 PM EST to 6:00 PM EST
Where
Brown County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
TRAINED SPOTTER
Coordinates
38.950, -83.883

Thunderstorm winds knocked down trees in numerous locations.

Thunderstorm Wind, Adams

When
August 9, 5:15 PM EST to 5:30 PM EST
Where
Adams County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
38.850, -83.483

Numerous trees downed across the county.

Thunderstorm Wind, Highland

When
August 9, 5:20 PM EST to 5:30 PM EST
Where
Highland County, Buford
Measured
50 kt (58 mph)
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
39.067, -83.850

Trees were knocked down by thunderstorm winds.

Hail, Warren

When
August 9, 5:25 PM EST to 5:35 PM EST
Where
Warren County, Mason
Measured
0.75 in hail
Reported by
TRAINED SPOTTER
Coordinates
39.367, -84.317

Thunderstorm Wind, Ross

When
August 9, 5:30 PM EST to 5:40 PM EST
Where
Ross County, Clarksburg
Measured
50 kt (58 mph)
Property damage
$50,000
Reported by
BROADCAST MEDIA
Coordinates
39.500, -83.150

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

Thunderstorm Wind, Pickaway

When
August 9, 5:40 PM EST to 5:50 PM EST
Where
Pickaway County, Ashville
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.717, -82.950

Numerous trees knocked down across the county.

Thunderstorm Wind, Hamilton

When
August 9, 5:50 PM EST to 6:30 PM EST
Where
Hamilton County, Groesbeck
Measured
53 kt (61 mph)
Property damage
$100,000
Reported by
OFFICIAL NWS OBS.
Coordinates
39.217, -84.583

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, Adams

When
August 9, 6:00 PM EST to 6:30 PM EST
Where
Adams County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
38.850, -83.483

Numerous trees knocked down across the county.

Thunderstorm Wind, Scioto

When
August 9, 6:15 PM EST to 6:40 PM EST
Where
Scioto County, Mc Dermott
Measured
60 kt (69 mph)
Property damage
$50,000
Reported by
EMERGENCY MANAGER
Coordinates
38.833, -83.067

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, Hocking

When
August 9, 6:30 PM EST to 6:45 PM EST
Where
Hocking County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.517, -82.450

Trees downed across the county.

Thunderstorm Wind, Hamilton

When
August 9, 6:35 PM EST to 7:30 PM EST
Where
Hamilton County, Countywide
Measured
50 kt (58 mph)
Property damage
$50,000
Reported by
NEWSPAPER
Coordinates
39.150, -84.533

Severe thunderstorms continued across the county knocking down numerous trees.

Thunderstorm Wind, Brown

When
August 9, 6:45 PM EST to 7:00 PM EST
Where
Brown County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
38.950, -83.883

Numerous trees downed.

Flash Flood, Brown

When
August 9, 6:45 PM EST to 7:15 PM EST
Where
Brown County, Countywide
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
38.934, -83.867 (the zone’s center; the record gives no point)

Heavy rainfall caused flooded roads across the county.

Tornado, Scioto

When
August 9, 6:50 PM EST to 7:00 PM EST
Where
Scioto County, Sciotoville
Rating
F1
Path length
2 mi
Path width
50 yd
Property damage
$300,000
Reported by
EMERGENCY MANAGER
Coordinates
38.767, -82.883

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.

Flash Flood, Clermont

When
August 9, 7:00 PM EST to 7:45 PM EST
Where
Clermont County, Countywide
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
39.047, -84.152 (the zone’s center; the record gives no point)

Heavy rainfall flooded roads across the county.

Thunderstorm Wind, Hocking

When
August 9, 7:05 PM EST to 7:30 PM EST
Where
Hocking County, Countywide
Measured
50 kt (58 mph)
Property damage
$10,000
Reported by
LAW ENFORCEMENT
Coordinates
39.517, -82.450

Numerous trees knocked down across the county.

Lightning, Hamilton

When
August 9, 7:08 PM EST
Where
Hamilton County, 5 mi NW of Cincinnati
Property damage
$80,000
Reported by
FIRE DEPT/RESCUE SQUAD
Coordinates
39.196, -84.543 (the zone’s center; the record gives no point)

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

Flash Flood, Adams

When
August 9, 7:10 PM EST to 8:30 PM EST
Where
Adams County, Countywide
Property damage
$5,000
Reported by
LAW ENFORCEMENT
Coordinates
38.846, -83.472 (the zone’s center; the record gives no point)

Heavy rain caused flooded roads across the county.

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Lightning
A lightning strike that killed, injured or caused damage.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Ohio in 2000Every state in 2000This day in weather historyThe tornado archive for Ohio, 2000Warnings in Ohio, August 2000

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5170746, 5170747, 5170748, 5170751, 5170750, 5170749, 5170752, 5170106, 5169626, 5169627, 5169710, 5169628, 5170397, 5169711, 5169712, 5169713, 5169714, 5169715, 5169716, 5170475, 5169717, 5169718, 5169719, 5170398, 5169720, 5169721, 5169722, 5169723, 5169724, 5169725, 5170037, 5170478, 5170094, 5170096, 5170104, 5170100, 5170095, 5170105, 5170093, 5170092, and more.