Dense Fog Advisory issued February 18 at 10:40PM MST until February 19 at 5:00AM MST by NWS

…DENSE FOG ADVISORY IN EFFECT UNTIL 6 AM CST SUNDAY… * WHAT…Visibility one quarter to one half mile in dense fog. * WHERE…Portions of southwest Minnesota and east central, south central and southeast South Dakota. * WHEN…Until 6 AM CST Sunday. * IMPACTS…Hazardous driving conditions due to low visibility.