Special Weather Statement issued December 10 at 1:13PM EST by NWS

…Icy Spots Expected Overnight… Across south-central Vermont, temperatures will rapidly fall below freezing beginning around 9 PM this evening. As temperatures plummet, any areas of standing water will rapidly freeze, creating icy spots on roads and sidewalks. For those traveling, use caution tonight as black ice can be difficult to spot,

Source: National Weather Service Alerts for Vermont