SIOUX FALLS, S.D. (KELO) -- A major storm system is expected to move through KELOLAND this weekend. This system will have to be remembered as we head into the winter months. Our summer weather will soon be replaced by cool and wet conditions this weekend. The looks of this latest storm for this weekend will be remembered as we head into the cooler months ahead. That's because it's about pattern recognition for the late fall and into winter. In s…