The primary threat for today will be hail of 1-2" in diameter, with the potential for a few larger hail stones. As the thunderstorms move east, the threat for winds of 60-70 mph increases and there is also the potential for a tornado or two. The timing for the thunderstorms will be during the 2 to 5 PM CDT time frame over central SD, then the storms will move eastward through the rest of the afternoon and evening, departing the area by midnight.