The NWS Fort Worth TX issued a dense fog advisory at 7:12 a.m. on Tuesday in effect until 10 a.m. The advisory is for Grayson, Fannin, Denton, Collin, Parker, Tarrant, Erath, Hood, Somervell and Comanche counties.

On Tuesday at 3:05 a.m. a dense fog advisory was issued by the National Weather Service in effect until 10 a.m. The advisory is for West Cameron, East Cameron, Northern Calcasieu, Northern Jefferson Davis,

The widespread fog can cause low visibility for drivers who are advised to slow down, use low beams and leave plenty of distance ahead of you.