Plan on patchy dense fog this morning west of the Blue Ridge and from the North Carolina foothills into central Virginia where there was rain Tuesday afternoon and evening. The fog will result in visibility less than one-half mile. Expect rapid changes in visibility when travelling this morning. Allow plenty of time to reach your destination, use low-beam headlights, and add extra space in front of your vehicle. A majority of the fog is expected to dissipate by 10AM.

Lingering moisture from yesterday's showers and light to calm winds have allowed fog to develop overnight across the area. At some locations in the NC mountain valleys, the visibility has been reduced to one quarter mile. This includes the city of Asheville. If the dense fog becomes more widespread, a Dense Fog Advisory may be issued. If you are traveling this morning, be on the lookout for reduced visibility and patchy dense fog. Slow down and leave extra room in front of your vehicle.