Dense Fog Advisory issued December 13 at 10:50AM MST until December 13 at 3:00PM MST by NWS

…DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 4 PM CST THIS AFTERNOON… * WHAT…Visibility one quarter to one half mile in dense fog. * WHERE…Portions of east central and southeast South Dakota, northwest Iowa and southwest Minnesota. * WHEN…Until 4 PM CST this afternoon.