RENO (AP) - It may be the dead of winter, but federal land managers already are preparing for a repeat of summer drought conditions in the nation's most arid state.U.S. Bureau of Land Management officials said it's possible drought conditions could again force the removal of livestock or temporary closure of grazing allotments on some federal land in Nevada this summer.The agency's Elko District Office has released an environmental assessment detailing how it plans to respond to varied range conditions, and has asked grazing permit holders to meet with BLM staff to assess range conditions before turning out livestock.BLM officials …