This hazardous weather outlook is for extreme southwest Nebraska... northwest Kansas and east central Colorado. .DAY ONE...TODAY AND TONIGHT... Locally dense fog may persist along portions of the Interstate 70 corridor this morning, mainly between Colby and Quinter. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY... Fog may develop along and west of Highway 27 early Saturday morning. Locally dense fog is possible. A Winter Weather Advisory is in effect for Rawlins, Thomas, Logan Decatur, Norton, Sheridan, Graham and Gove counties beginning at noon CST Saturday and ending at 6 PM CST Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed.