Fog rolled through portions of the area this morning as you could easily tell by watching Adam Caskey out in Centreville this morning on Good Morning Washington. Fairfax County wasn't the only place to see fog.. There was a Dense Fog Advisory through 10am this morning for Fauquier County in VA and points south and west to the Blue Ridge. Check out some of these awesome timelapses from the National Park Service camera on the Blue Ridge as well as Great Falls (Fairfax Co., VA) and Middletown (Frederick Co., MD) weatherbug cameras.
This was actually radiation fog as we had plenty of moisture at the surface from the showers overnight. When the skies cleared, the temperatures dropped and reached the dew point at the surface creating the layer of fog that finally burned off in the late morning hours.