South Dakota's Tornado Alley region includes much of the Sioux Empire in the southeast of the state. If you live in one of these 10 counties there's a pretty good chance of being near a tornado.
Greenfield, Iowa was hit by an EF4 tornado back in May. That tornado must have picked up corn seeds and several of them landed on lawns in the torn up town of Greenfield.
Six people died and nearly a whole town was destroyed by one of the deadliest tornados in South Dakota history. Remember the Spencer tornado with these videos.
The tornado that hit Greenfield, Iowa on Tuesday, May 21st, was rated an EF-4 and sadly killed 5 people. As cleanup begins, reports are coming in of items from the destroyed houses being found in Minnesota, 185 miles away.