Tornado record · Original Fujita scale
F3 tornado, Walworth County, South Dakota, June 20, 1968
RatingF3
Deaths0
Injuries0
Length8.8 mi
Width200 yd
Path
Drawn as a straight line from the recorded start point (45.53, -100.22) to the end point (45.50, -100.03), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- June 20, 1968, 10:00 PM (as recorded, Central Standard Time)
- Rating
- F3
- States
- South Dakota
- Counties
- Walworth County
- Path
- 8.8 miles long, up to 200 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on June 20, 1968
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| Jun 20, 1968 | F3 | South Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 20, 1968 | F3 | South Dakota | 9.9 mi | 2,667 yd | 0 | 0 |
| Jun 20, 1968 | F2 | South Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 20, 1968 | F2 | South Dakota | 13.1 mi | 100 yd | 0 | 0 |
| Jun 20, 1968 | F2 | South Dakota | 33.5 mi | 10 yd | 0 | 0 |
| Jun 20, 1968 | F2 | South Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 20, 1968 | F2 | South Dakota | 21.4 mi | 10 yd | 0 | 0 |
| Jun 20, 1968 | F1 | Louisiana | 0.5 mi | 100 yd | 0 | 0 |
| Jun 20, 1968 | F1 | Texas | 0.2 mi | 17 yd | 0 | 0 |
| Jun 20, 1968 | F1 | Minnesota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 20, 1968 | F0 | Minnesota | 0.1 mi | 10 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.