Fog is one of the leading causes of chain-reaction car accidents. The best safety strategy for dealing with dense fog is never driving in it. When there is a weather advisory for fog and if your trip isn’t necessary, stay home until the fog has cleared. Fog is often localized to lakes, coastlines, and lowlands and is sometimes avoided by taking alternate routes. When avoidance is impossible, these five safety tips will help: Reduce Your Speed Your stopping distance should never exceed your visibility distance through the fog. Since the fog obscures.