The April 9, 1999 tornado
F4Hamilton and Warren counties, Ohio
An F4 tornado on a 10.0-mile path that killed 4 and injured 65. It was one of 9 tornadoes recorded in the U.S. that day, 3 of them rated F3/EF3 or stronger.
Watch how it happenedF4 tornado · April 9, 1999
How it happened
Follow the tornado’s path, minute by minute.
The tornado
- Rating
- F4
- Fujita scale
- Path length
- 10.0 mi
- Width up to 270 yards
- Killed
- 4
- Along the whole path
- Injured
- 65
- Along the whole path
- Date and time
- Friday, April 9, 1999
- 4:12 AM EST
The National Weather Service account
Written by the local Weather Service office after its damage survey.
A tornado began with F2 intensity in Blue Ash in the northeast corner of the county. This tornado moved through Montgomery, Symmes Township, and Loveland before entering Warren county. The intensity of the tornado was F2 and F3 at many points along the track, intensifying to a low end F4 while in Montgomery. The width of the tornado ranged from 100 yards to 1/4 mile wide. Four fatalities occurred; two in a home and the other two in vehicles. About 91 homes and apartments were destroyed along with 37 businesses. Additionally, 197 homes and apartments suffered major damage with 477 others also incurring damage. Twenty six businesses had major damage with 18 others also incurring damage.
NOAA NCEI Storm Events Database.
Counties on its path
Storm Prediction Center severe weather database. Path drawn as a straight line from the recorded start to end point.