Background
A pilot who did not hold an instrument rating received a weather briefing and filed a visual flight rules (VFR) flight plan. During the flight, the pilot was advised multiple times that fog was moving into the area. The pilot acknowledged the fog and stated the intention to continue to the destination.
ATC Communications
Air traffic control (ATC) repeatedly warned the pilot about the fog and provided the location of an airport where VFR weather conditions existed. The pilot informed ATC that he would overfly the planned destination and decide whether to land under VFR or change to an instrument flight rules (IFR) flight plan. Subsequently, the pilot reported seeing the lights of the destination airport and requested a frequency change. No request for an IFR clearance was made.
Flight Maneuvers
The airplane was observed maneuvering in the vicinity of the airport. At the time, a passenger on board held an instrument rating but it was not current.
Witness Reports
Witnesses in the area reported the presence of fog.