A dense fog advisory is in effect for southeast Louisiana and southern Mississippi until Friday morning. The National Weather Service in New Orleans urges motorists to drive with caution due to reduced visibility and potentially hazardous conditions.

Early Wednesday morning, the National Weather Service issued a dense fog advisory for Hillsdale County. The advisory is effective until 6 a.m. EDT, warning residents of reduced visibility during this period.

The National Weather Service has issued a dense fog advisory for Erie and Chautauqua counties until 11:30 a.m. today, warning residents of reduced visibility.