While overcast conditions have prevented fog from being widespread the last few days, areas of patchy dense fog and reduced visibilities continue to be possible in the San Joaquin Valley and Sierra foothills. Remain cautious if you experience dense fog while driving.

A Dense Fog Advisory is now in effect until 10 AM PST Saturday for the San Joaquin Valley. Visibility of one quarter mile or less due to dense fog is expected once again tonight into Saturday morning. If you encounter dense fog while driving, remember to slow down, turn on your low beams, and keep plenty of distance between you and surrounding vehicles.