Special Weather Statement issued January 23 at 3:45AM EST by NWS Greenville-Spartanburg SC

Another very cold morning is expected across the area with temperatures
forecast to drop into the teens. Some shaded secondary and less traveled
roads still have wet spots on them that will quickly freeze as temperatures
fall. If traveling across the area this morning, use extra caution.
Road surfaces that appear damp are likely to be covered in black ice.
Slow down and allow for plenty of space between you and other vehicles
if black ice is encountered.