Areas of dense fog in the southern Willamette Valley, including lowland potions of Benton, Linn, and Lane Counties, may result in hazardous travel conditions due to visibility of one half mile or less. If encountering fog, drivers should slow down, increase following distance between vehicles, and remember to use low beams to minimize glare. Pedestrians and cyclists should wear reflective clothing and use lights to increase visibility to drivers. Fog is expected to diminish in coverage by 10 AM PDT this morning.