Morning commuters across the Bay Area should prepare for reduced visibility due to dense fog expected to linger through the early hours. This atmospheric condition is anticipated to impact key highways and surface streets, particularly in low-lying and coastal regions. Drivers are advised to exercise caution, reduce speeds, and allow extra travel time as the fog may cause sudden drops in visibility, increasing the risk of accidents.

The National Weather Service highlights several critical zones where the fog is likely to be thickest:

  • Highway 101 corridor between San Francisco and San Jose
  • Interstate 280 near Daly City
  • Bay Bridge approaches during early morning commutes
Time Window Visibility Recommended Action
4:30 AM – 7:00 AM Under 1/4 mile Use fog lights, drive with caution
7:00 AM – 9:00 AM 1/4 to 1/2 mile Maintain safe following distance
After 9:00 AM Visibility improves Normal driving conditions resume