Environment Canada has issued a fog advisory for the southern Kawarthas region for Monday evening (October 31) into Tuesday morning.
The fog advisory is in effect for southern Peterborough County, southern Kawartha Lakes, and Northumberland County.
Dense fog is expected with visibility near zero.
With high pedestrian activity due to Halloween, motorists are encouraged to exercise increased caution when driving.
When trick-or-treating, pick brightly coloured costumes that can be clearly seen by motorists. Add reflective tape to the costume to increase visibility.
Give each child a flashlight to carry to make them more visible to motorists and others.
If travelling, be prepared for areas of near-zero visibility. If visibility is reduced while driving, slow down, watch for tail lights ahead and be prepared to stop.