Active AlertsJamesan, CA

What: Visibility one quarter mile or less in dense fog. Visibilities below 200 feet expected in some areas.
Where: Much of San Joaquin Valley, including from Merced County south to Kern County.
When: From midnight tonight to 11 AM PST Monday.
Impacts: Low visibility could make driving conditions hazardous.
Additional Details: Highways include, but are not limited to, Interstate 5, State Routes 99, 41, 43, 46, 58, 59, 140, 152, 165, 168, 180, and 198.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.