Issue Date: 833 PM CST Sun Dec 16 2018
Expiration: 1100 GMT 17 2018
...Significant Weather Advisory for Patchy Dense Fog...
Patchy Dense Fog has or will develop across north Alabama and
southern middle Tennessee. Visibility will drop to 1/4 mile or less
in some areas. Fog could expand in coverage overnight, and a Dense
Fog Advisory may be needed.
Motorists are urged to drive with extreme caution, as visibility
will vary significantly given the patchy nature of the fog. Use low
beams, reduce driving speed, and allow for plenty of room between you
and other cars.