Special Weather Statement issued February 10 at 9:36PM EST by NWS

…Patchy Dense Fog and Black Ice Possible Overnight… Areas of patchy dense fog and black ice are possible overnight. Ground surfaces remain wet due to rainfall and snowmelt from earlier today and combined with sub-freezing temperatures untreated surfaces may become slick. In addition to black ice, areas of dense fog have also been reported with visibilities

Source: National Weather Service Alerts for Vermont