Additional rounds of thunderstorms are expected Thursday and Thursday night across Oklahoma and north Texas, with risks for both large hail and flash flooding. Strong winds may accompany any storms from east Texas northeast through the lower Great Lakes. Read More >
First EF4/F4 Tornado Reported in South Dakota Since 2003
On 22 May 2010, a strong supercell thunderstorm produced an EF4 tornado in Edmunds County near Bowdle, SD. This was the first EF4 tornado in South Dakota since the destructive F4 tornado on 24 June 2003 near Manchester, SD. Looking back at tornado records since 1950, there have only been seven other F4 or F5 tornadoes in South Dakota:
Location | Date | Rating |
Tripp County | 5/8/1965 | F5 |
Yankton County | 6/7/1965 | F4 |
Turner County | 6/7/1965 | F4 |
Harding County | 7/7/1969 | F4 |
McCook County (Spencer) | 5/30/1998 | F4 |
Brown County (Barnard) | 6/23/2002 | F4 |
Kingsbury County (Manchester) | 6/24/2003 | F4 |
Edmunds County (Bowdle) | 5/22/2010 | EF4 |
Fact Sheet:
A couple other interesting tornado facts are listed below:
Radar Loops:
The images below are from the NWS Doppler Radar in Aberdeen, SD (KABR). The image loop runs from 6PM CDT (2200 UTC) through 930PM CDT (0230 UTC). Figure 1 is the 0.5° base reflectivity data, and Figure 2 below shows 0.5° base velocity data. Click on the images for a higher resolution image loop.
Figure 1:
Figure 2: