As temperatures drop to or slightly below freezing tonight, black ice may form on secondary and untreated surfaces, especially in sheltered or valley locations. The most likely areas for sub freezing temperatures are across southern Indiana and portions of north central Kentucky. Slick and icy roads could impact the Tuesday morning commute. Drivers should use caution driving overnight or early Tuesday morning if temperatures are below freezing.
In addition, fog is likely to form this evening and especially overnight. The recent rainfall, light winds, and cold ground will all contribute to fog formation, which may become dense overnight. Visibilities are likely to be less than 1 mile and could be as low as 1/4 mile at times. Drivers should use caution as there may be sudden changes in driving conditions and visibilities. Dense fog is most likely across southern Indiana and north central Kentucky.
Lexington city road crews will be on standby to treat slick roadways as needed through the evening and morning rush hour.