Tornado record · Original Fujita scale
F0 tornado, Boone County, Indiana, May 17, 1991
RatingF0
Deaths0
Injuries0
Length0.2 mi
Width20 yd
Path
Drawn as a straight line from the recorded start point (40.13, -86.60) to the end point (40.13, -86.60), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- May 17, 1991, 2:30 PM (as recorded, Central Standard Time)
- Rating
- F0
- States
- Indiana
- Counties
- Boone County
- Near the path
- Thorntown (approximate: towns the straight recorded line passes through)
- Path
- 0.2 miles long, up to 20 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on May 17, 1991
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 17, 1991 | F2 | Iowa | 9 mi | 60 yd | 0 | 0 |
| May 17, 1991 | F1 | Indiana | 0.1 mi | 40 yd | 0 | 0 |
| May 17, 1991 | F1 | Iowa | 0.1 mi | 17 yd | 0 | 0 |
| May 17, 1991 | F1 | Iowa | 14.5 mi | 30 yd | 0 | 0 |
| May 17, 1991 | F0 | Iowa | 0.1 mi | 17 yd | 0 | 0 |
| May 17, 1991 | F0 | Florida | 0.4 mi | 30 yd | 0 | 0 |
| May 17, 1991 | F0 | Florida | 0.2 mi | 23 yd | 0 | 0 |
| May 17, 1991 | F0 | Iowa | 0.3 mi | 20 yd | 0 | 0 |
| May 17, 1991 | F0 | Missouri | 0.5 mi | 13 yd | 0 | 0 |
| May 17, 1991 | F0 | Illinois | 1 mi | 50 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.