Tornado record · Enhanced Fujita scale
EF4 tornado, Walworth County, South Dakota, May 22, 2010
RatingEF4
Deaths0
Injuries0
Length5.7 mi
Width1,200 yd
Path
Drawn as a straight line from the recorded start point (45.45, -99.75) to the end point (45.48, -99.64), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- May 22, 2010, 5:21 PM (as recorded, Central Standard Time)
- Rating
- EF4
- States
- South Dakota
- Counties
- Walworth County, Edmunds County
- Path
- 5.7 miles long, up to 1,200 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on May 22, 2010
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 22, 2010 | EF2 | South Dakota | 18.64 mi | 200 yd | 0 | 0 |
| May 22, 2010 | EF2 | South Dakota | 1.29 mi | 100 yd | 0 | 0 |
| May 22, 2010 | EF2 | South Dakota | 2.85 mi | 150 yd | 0 | 0 |
| May 22, 2010 | EF2 | Nebraska | 9.01 mi | 20 yd | 0 | 0 |
| May 22, 2010 | EF1 | South Dakota | 0.5 mi | 100 yd | 0 | 0 |
| May 22, 2010 | EF1 | South Dakota | 1.62 mi | 100 yd | 0 | 0 |
| May 22, 2010 | EF0 | South Dakota | 0.48 mi | 50 yd | 0 | 0 |
| May 22, 2010 | EF0 | Texas | 1.77 mi | 150 yd | 0 | 0 |
| May 22, 2010 | EF0 | South Dakota | 0.28 mi | 30 yd | 0 | 0 |
| May 22, 2010 | EF0 | South Dakota | 0.21 mi | 10 yd | 0 | 0 |
| May 22, 2010 | EF0 | South Dakota | 0.19 mi | 30 yd | 0 | 0 |
| May 22, 2010 | EF0 | Texas | 0.25 mi | 150 yd | 0 | 0 |
| May 22, 2010 | EF0 | Nebraska | 1.03 mi | 20 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.