Dense Fog Advisory issued December 08 at 1:00AM MST until December 08 at 9:00AM MST by NWS

…DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING… The National Weather Service in Sioux Falls has issued a Dense Fog Advisory, which is in effect until 10 AM CST this morning. * VISIBILITY…Several areas with 1/4 mile or less at times. * IMPACTS…Freezing fog could lead to patchy black ice and difficult travel.