Moderate Expected Likely Dense Fog Advisory Dense Fog Advisory issued December 24 at 9:15AM CST until December 25 at 10:00AM CST by NWS New Orleans LA Dec 24, 7:00 PM → Dec 25, 10:00 AM WHAT: Visibility one quarter mile or less in dense fog. WHERE: Portions of southeast Louisiana and southern Mississippi. WHEN: Until 11 AM CST this morning, and again from 7 PM thisevening to 10 AM CST Thursday. IMPACTS: Low visibility could make driving conditions hazardous,especially in areas where smoke can mix with fog to reducevisibilities to near zero. + Read More If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you. Updated: Dec 24, 2:07 PM Source: NWS Alert