Portland, OR – Motorists traveling through Oregon on Saturday morning should prepare for dense fog, particularly along Highway 101 and I-5. A fog advisory is in effect until 10 a.m., with visibility dropping below a quarter mile in some areas. Drivers are urged to exercise caution as conditions could be hazardous.
According to the National Weather Service, the fog will be heaviest in low-lying regions, especially near rivers and along the coast. The advisory affects Portland, the Willamette Valley, and other key areas in the state. Drivers are advised to slow down, use fog lights, and allow extra time for travel, particularly on Highway 101 and I-5, where visibility may be significantly impaired.
Pedestrians and cyclists should wear bright or reflective clothing to increase their chances of being seen in poor visibility conditions. Delays are expected, and travelers are encouraged to check local traffic updates before heading out. Those who can should consider delaying non-essential trips until after the advisory lifts at 10 a.m.



