Dense Fog Advisory issued December 09 at 2:23PM EST until December 10 at 1:00AM EST by NWS

…DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM EST TUESDAY… * WHAT…Visibility one quarter mile or less in dense fog. * WHERE…Portions of southern Vermont, northwestern Connecticut, eastern New York except for the southwest Adirondacks, and western Massachusetts. * WHEN…Until 1 AM EST Tuesday.

Source: National Weather Service Alerts for Vermont