On Thursday at 1:32 a.m. a dense fog advisory was issued by the National Weather Service in effect until 9 a.m. for Benton County Lowlands, Linn County Lowlands and Lane County Lowlands.
The National Weather Service issued a dense fog advisory at 9:46 p.m. on Wednesday valid from 10 p.m. until Thursday 8 a.m. for Madison, Morgan, Marshall, Jackson, DeKalb and Cullman counties.