Dense fog has enveloped roads across Louisiana, significantly reducing visibility and posing challenges for drivers. According to the source, the fog is particularly thick in low-lying areas and near water bodies, creating hazardous driving conditions. The National Weather Service has issued a fog advisory, urging motorists to exercise caution. The fog is expected to persist throughout the morning, gradually lifting as temperatures rise. Drivers are advised to use headlights and maintain a safe distance from other vehicles. The advisory highlights the importance of staying informed about local weather conditions and adjusting travel plans accordingly.