Special Weather Statement issued February 19 at 3:26PM EST by NWS Morristown TN

Another storm system will move across the region late tonight and
Thursday morning bringing with it scattered snow showers.
Additional snow accumulations of 1/2 inch are expected, possibly
locally higher across the Plateau counties. Also, the melting snow
will refreeze tonight as very cold air moves into the region.
Patchy areas of black ice are expected.

Some slick travel conditions are possible, especially during the
morning commute Thursday. If traveling, allow extra time to reach
your destination. Keep extra space between you and other
vehicles. Drive with caution and slow down.