Environment Canada has ended its fog advisory for London-Middlesex, Elgin County, Oxford County and Norfolk County.
It issued the advisory Friday morning, noting that near zero visibility is expected in some areas until conditions improve later on.
Middlesex OPP also issued a statement on road conditions Friday morning, reminding drivers to make sure their headlights and taillights are on and to slow down and give yourself some extra space on the road.
Drivers should also watch for tail lights ahead and be prepared to stop.
More foggy conditions are expected again Saturday morning.