Tornado record · Original Fujita scale
F1 tornado, Union County, South Dakota, May 8, 1964
RatingF1
Deaths0
Injuries0
Length0.1 mi
Width10 yd
Path
Drawn as a straight line from the recorded start point (42.80, -97.78) to the end point (42.80, -97.78), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- May 8, 1964, 11:00 AM (as recorded, Central Standard Time)
- Rating
- F1
- States
- South Dakota
- Counties
- Union County
- Path
- 0.1 miles long, up to 10 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on May 8, 1964
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 8, 1964 | F4 | Michigan | 3.3 mi | 833 yd | 11 | 224 |
| May 8, 1964 | F3 | Iowa | 9.3 mi | 200 yd | 0 | 0 |
| May 8, 1964 | F2 | Iowa | 5.1 mi | 200 yd | 0 | 0 |
| May 8, 1964 | F2 | Michigan | 0.1 mi | 500 yd | 0 | 1 |
| May 8, 1964 | F2 | Michigan | 3.3 mi | 400 yd | 0 | 1 |
| May 8, 1964 | F2 | Wisconsin | 12.3 mi | 500 yd | 0 | 0 |
| May 8, 1964 | F2 | Wisconsin | 3.3 mi | 200 yd | 0 | 1 |
| May 8, 1964 | F2 | Wisconsin | 23.5 mi | 150 yd | 0 | 0 |
| May 8, 1964 | F2 | Wisconsin | 20.3 mi | 300 yd | 0 | 2 |
| May 8, 1964 | F2 | Wisconsin | 30.6 mi | 63 yd | 0 | 5 |
| May 8, 1964 | F2 | Michigan | 16.6 mi | 440 yd | 0 | 0 |
| May 8, 1964 | F2 | Michigan | 17.9 mi | 400 yd | 0 | 0 |
| May 8, 1964 | F1 | Kansas | 0.1 mi | 10 yd | 0 | 0 |
| May 8, 1964 | F1 | South Dakota | 1.5 mi | 10 yd | 0 | 0 |
| May 8, 1964 | F1 | South Dakota | 21.5 mi | 10 yd | 0 | 0 |
| May 8, 1964 | F0 | Texas | 1 mi | 13 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.