For your protection move to an interior room on the lowest floor of a building.

High pressure is building into the area. This is combining with light winds and lingering low-level moisture, helping areas of dense fog to develop early this morning. Visibilities will be below a quarter of a mile in many locations, and down to hundreds of feet in the thickest of the fog. If you are driving early this morning, be sure to slow down and use your low beam headlights when you encounter any fog. The fog will slowly start to clear after 9 AM EDT.