pA a class="link" rel="nofollow" target="blank" href="" target="blank"confirmed tornadoa touched down in Alpena, South Dakota, on Wednesday, June 18. Around 100 soldiers from the South Dakota National Guard were deployed to nearby Wessington Springs after a second tornado ripped through the town, leveling buildings and injuring one person.ppThis video, shot in Gann Valley, around 40 miles west of Alpena, shows the tornado approaching the town.