BATON ROUGE, La. – A thick blanket of dense fog covered much of Louisiana early Thursday morning, prompting Dense Fog Advisories from Lake Charles to New Orleans and north through Alexandria and Baton Rouge, with visibility dropping to a quarter mile or less in many areas.
According to the National Weather Service offices in Lake Charles and New Orleans, fog developed overnight under calm winds and clear skies, reducing visibility along Interstate 10, I-49, and U.S. 190. The advisory remains in effect until 9 a.m. CST, when improving sunlight and light mixing should gradually clear the fog.
“Low visibility could make driving conditions hazardous,” forecasters warned. “Motorists should slow down, use headlights, and maintain safe following distances.” Areas along rivers, bayous, and coastal marshes are expected to see the thickest fog, especially around Houma, Lafayette, Lake Charles, and Baton Rouge, extending into parts of southern Mississippi near Picayune and Bay St. Louis.
Commuters and early travelers should plan extra time for morning routes, particularly across bridges and rural highways where fog can linger longer. The remainder of the day will stay mostly sunny and mild, with highs in the upper 60s to low 70s.
