Tornado record · Original Fujita scale
F1 tornado, Walworth County, South Dakota, June 15, 1978
RatingF1
Deaths0
Injuries0
Length0.1 mi
Width10 yd
Path
Drawn as a straight line from the recorded start point (45.38, -99.88) to the end point (45.38, -99.88), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- June 15, 1978, 7:55 PM (as recorded, Central Standard Time)
- Rating
- F1
- States
- South Dakota
- Counties
- Walworth County
- Path
- 0.1 miles long, up to 10 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on June 15, 1978
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| Jun 15, 1978 | F2 | South Dakota | 0.1 mi | 10 yd | 0 | 15 |
| Jun 15, 1978 | F1 | North Dakota | 0.3 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F1 | North Dakota | 0.3 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F1 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F1 | South Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F0 | Iowa | 0.5 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F0 | North Dakota | 1 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F0 | South Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F0 | South Dakota | 0.1 mi | 10 yd | 0 | 0 |
| Jun 15, 1978 | F0 | North Dakota | 0.1 mi | 10 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.