Hail, Hamilton
- When
- August 24, 1:25 PM EST to 1:30 PM EST
- Where
- Hamilton County, Wyoming
- Measured
- 1.5 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.230, -84.470
Tornadoes and Flash Flood in Ohio, August 24, 1999
5 thunderstorm wind, 2 hail, 2 tornado, 1 flash flood, as filed by the National Weather Service.
Where it happened
Every event with a place to put it; 1 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $95,000
- Crop damage
- None recorded
- Events
- 10
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.
The radar
The national radar mosaic for the moment the first event began.
Event by event
5 thunderstorm wind, 2 hail, 2 tornado, 1 flash flood. Local standard time, as filed.
Hail, Hamilton
- When
- August 24, 2:08 PM EST to 2:10 PM EST
- Where
- Hamilton County, Forestville
- Measured
- 0.75 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 39.070, -84.350
Tornado, Clermont
- When
- August 24, 2:28 PM EST to 2:33 PM EST
- Where
- Clermont County, Loveland to 2 mi NW of Goshen
- Rating
- F0
- Path length
- 2 mi
- Path width
- 500 yd
- Property damage
- $25,000
- Reported by
- NWS STORM SURVEY
- Coordinates
- 39.270, -84.220
A weak tornado affected the northwest part of the county before tracking into Warren county. Trees were downed and some homes and barns were damaged.
Tornado, Warren
- When
- August 24, 2:33 PM EST to 2:38 PM EST
- Where
- Warren County, Cozaddale to 1 mi NW of Pleasant Plain
- Measured
- 50
- Rating
- F0
- Path length
- 3 mi
- Path width
- 500 yd
- Property damage
- $25,000
- Reported by
- NWS STORM SURVEY
- Coordinates
- 39.250, -84.180
A weak tornado tracked out of Clermont county into the south-central part of the county. Trees were downed and some damage occurred to homes and barns.
Thunderstorm Wind, Clinton
- When
- August 24, 3:03 PM EST
- Where
- Clinton County, Wlmngtn Indus Arpt
- Measured
- 52 kt (60 mph)
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 39.430, -83.800
Thunderstorm Wind, Brown
- When
- August 24, 3:30 PM EST to 3:35 PM EST
- Where
- Brown County, Sardinia
- Measured
- 50 kt (58 mph)
- Property damage
- $20,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.000, -83.800
Numerous large limbs and a tree were knocked down. The tree fell on a house causing damage.
Thunderstorm Wind, Adams
- When
- August 24, 4:30 PM EST to 4:35 PM EST
- Where
- Adams County, West Union
- Measured
- 50 kt (58 mph)
- Property damage
- $15,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 38.800, -83.530
Trees and power lines downed. One tree fell on a house causing damage.
Thunderstorm Wind, Ross
- When
- August 24, 5:10 PM EST to 5:15 PM EST
- Where
- Ross County, Chillicothe
- Measured
- 50 kt (58 mph)
- Property damage
- $5,000
- Reported by
- UTILITY COMPANY
- Coordinates
- 39.330, -82.980
Several large trees downed.
Thunderstorm Wind, Scioto
- When
- August 24, 5:30 PM EST to 5:35 PM EST
- Where
- Scioto County, Portsmouth
- Measured
- 50 kt (58 mph)
- Property damage
- $5,000
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 38.730, -82.980
Tree knocked down.
Flash Flood, Scioto
- When
- August 24, 6:17 PM EST to 7:00 PM EST
- Where
- Scioto County, Portsmouth
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 38.804, -82.993 (the zone’s center; the record gives no point)
Several hours of heavy rainfall caused water to collect on streets and underpasses.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- 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.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flood and Damaging Winds in New York, August 24, 1999
- Flash Flooding in Texas, August 24, 1999
- Flash Flooding and Hail in Tennessee, August 24, 1999
- Hail in Mississippi, August 24, 1999
- Hail and Damaging Winds in Kentucky, August 24, 1999
- Hail and Damaging Winds in Georgia, August 24, 1999
- Damaging Winds in Ohio, August 24, 1999
- Tornado in Florida, August 24, 1999
- Flood in California, August 24, 1999
- Damaging Wind in Louisiana, August 24, 1999
- Lightning Strike in Alabama, August 24, 1999
- Hail in Texas, August 24, 1999
More
Every storm in Ohio in 1999Every state in 1999This day in weather historyThe tornado archive for Ohio, 1999Warnings in Ohio, August 1999
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: 5707430, 5707431, 5707432, 5707438, 5707433, 5707434, 5707435, 5707436, 5707437, 5707439.