Special Weather Statement issued January 22 at 5:11PM EST by NWS Columbia SC

There has been some melting snow this afternoon but as
temperatures quickly fall below freezing tonight, expect any
lingering water on roadways to refreeze. This could create
hazardous travel conditions especially on secondary roads,
bridges, and overpasses. This is more likely to occur in the
eastern Midlands and CSRA where the higher snowpack is located.

Black ice is difficult to see and distinguish from dry surfaces.
The deceptive nature of black ice can catch you unaware while you
are driving or walking, causing you to lose control of your motor
vehicle or to slip and fall.