Active AlertsClayton Lake, ME

What: Visibility of a quarter-mile or less in dense fog.
Where: Northern Penobscot, Southeast Aroostook, Northeast Aroostook, Northwest Aroostook, Northern Piscataquis, and Northern Somerset Counties.
When: Until 8 AM EDT Thursday.
Impacts: Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.