Dense Fog Advisory Louisiana, Mississippi | Effective 03/26/2026 08:42

Headline: 
Dense Fog Advisory issued March 26 at 10:42AM CDT until March 27 at 9:00AM CDT by NWS New Orleans LA
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
March 26, 2026 - 8:42am
Expires: 
March 26, 2026 - 11:00pm
Description: 
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of southeast Louisiana and southern Mississippi. * WHEN...From 1 AM to 9 AM CDT Friday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Localized areas of super fog may occur near ongoing marsh fires.
Instruction: 
If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.
Area Description: 
Pointe Coupee; West Feliciana; East Feliciana; St. Helena; Washington; Iberville; West Baton Rouge; East Baton Rouge; Assumption; St. James; St. John The Baptist; Upper Lafourche; St. Charles; Upper St. Bernard; Upper Terrebonne; Lower Terrebonne; Lower Lafourche; Coastal Jefferson; Lower Plaquemines; Lower St. Bernard; Northern Tangipahoa; Southeast St. Tammany; Western Orleans; Eastern Orleans; Northern St. Tammany; Southwestern St. Tammany; Central Tangipahoa; Lower Tangipahoa; Northern Livingston; Southern Livingston; Western Ascension; Eastern Ascension; Upper Jefferson; Lower Jefferson; Upper Plaquemines; Central Plaquemines; Wilkinson; Amite; Pike; Walthall; Pearl River; Northern Hancock; Northern Harrison; Northern Jackson; Southern Hancock; Southern Harrison; Southern Jackson
Forcast Office: 
NWS New Orleans LA