Dense Fog Advisory issued January 11 at 3:31AM MST until January 11 at 9:00AM MST by NWS

…DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM CST THIS MORNING… * WHAT…Visibility one quarter mile or less in dense fog. * WHERE…Portions of northwest Iowa and east central and southeast South Dakota. * WHEN…Until 10 AM CST this morning.