Special Weather Statement issued February 12 at 9:21PM EST by NWS Columbia SC

Widespread low clouds are leading to reduced visibilities across
much of the forecast area this evening. Areas of patchy fog may
develop through the overnight hours ahead of a slowly moving warm
front. The southeastern Midlands are most likely to see locally
dense fog prior to the frontal passage and will be monitored for a
Dense Fog Advisory later tonight. If traveling tonight, be
prepared for the possibility of reduced visibilities. Should you
encounter dense fog, drive slow and leave plenty of distance
ahead of you.