Dense Fog Advisories Impact Multiple Northwest, Midwest Counties During Morning Commute

Dense fog advisories have been issued across multiple regions including northeast Washington, the Idaho Panhandle, parts of Missouri, and Oregon, with visibility often reduced to one-quarter of a mile or less, creating hazardous driving conditions. The National Weather Service advises drivers to slow down, use low-beam headlights or fog lights, maintain extra distance from vehicles ahead, and avoid high-beam headlights to prevent glare. Pedestrians and cyclists are urged to wear bright or reflective clothing to increase visibility. In cases of extremely dense fog, motorists are recommended to turn on hazard lights and pull over safely if visibility becomes near zero. This fog is expected to lift by late morning in most affected areas, though an atmospheric river system will bring rain to parts of the Northwest later in the week, potentially impacting outdoor activities such as Halloween. Authorities emphasize caution on the roads during the fog advisory periods to ensure safety.