Tornado record · Enhanced Fujita scale
EF1 tornado, Haakon County, South Dakota, May 9, 2011
RatingEF1
Deaths0
Injuries0
Length2.55 mi
Width30 yd
Path
Drawn as a straight line from the recorded start point (44.14, -101.70) to the end point (44.16, -101.66), which is all NOAA's record holds. The real track may have curved.
The record
- Date
- May 9, 2011, 8:55 PM (as recorded, Central Standard Time)
- Rating
- EF1
- States
- South Dakota
- Counties
- Haakon County
- Path
- 2.55 miles long, up to 30 yards wide
- Casualties
- 0 deaths, 0 injuries
Other tornadoes on May 9, 2011
| Date | Rating | State | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| May 9, 2011 | EF0 | Nebraska | 0.01 mi | 20 yd | 0 | 0 |
| May 9, 2011 | EF0 | Nebraska | 0.01 mi | 20 yd | 0 | 0 |
| May 9, 2011 | EF0 | South Dakota | 0.01 mi | 20 yd | 0 | 0 |
| May 9, 2011 | EF0 | South Dakota | 1.52 mi | 30 yd | 0 | 0 |
Tornado history nearby
Source: NOAA Storm Prediction Center severe weather database, 1950 to 2025.