A Severe Thunderstorm Watch is in effect for all of South Dakota along and west of the James River until 4pm today. 80 mph wind gusts and baseball size hail are possible in the watch area.
Storms have already developed across western South Dakota and have a history of producing grapefruit size hail. Storms will move across South Dakota from west to east throughout the day.
Visit KSFY's weather page for more information: http://www.ksfy.com/weather.
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