Special Weather Statement issued September 18 at 5:29AM EDT by NWS

…Locally dense fog this morning… Fog has developed across much of east central New York and western New England especially in the river valleys with some of it locally dense fog, visibilities less than a half of a mile. Motorists are urged to be prepared for rapid changes in visibilities and to give themselves some extra time to reach

Source: National Weather Service Alerts for Vermont