Drought conditions have continued to expand over the last week in South Dakota officials say the drought is currently expected to get worse before it starts getting better. Since last week the drought in South Dakota has expanded throughout the state with little rain to help lessen its effects. Travis Tarver is a meteorologist for the National Weather Service in Aberdeen. He says drought conditions have worsened across the state with the northern part of the state seeing the worst of it. “The biggest change was the expansion of the…