HIDE Special Weather Statement issued May 23 at 4:09AM EDT by NWS Blacksburg
...Fog may impact travel this morning...
Fog will be at times dense across the mountains this morning.
Expect visibilities to fluctuate from a quarter mile or less to
over 4 miles. Rapid changes in visibility is expected, especially
along the I-77 corridor north of the Virginia, North Carolina
border, as well as I-81 between Chilhowie and Roanoke.
The fog should lift after 8am. Those heading to work this
morning should give yourself more time to get to your destination.
Slow down and stay alert.