Overview
- The National Weather Service reports a fog bank stretching from Bakersfield to north of Sacramento that has now pushed into parts of the Bay Area, with patches noted in interior North and East Bay valleys.
- Dense fog advisories remain in the San Joaquin Valley with warnings of high transportation risk, reducing visibility along Interstate 5, Highway 99 and connecting routes.
- Visibility is projected around half a mile under Level 3 conditions, with localized drops to as little as 10 feet possible, according to the weather service.
- The California Highway Patrol urges motorists to postpone nonessential travel, use low beams, avoid stopping on highways, and follow pace vehicles where deployed.
- Meteorologists attribute the persistence to recent rainfall trapping moisture near the surface under light winds, and air districts have flagged deteriorating air quality even as officials report no major pile-ups so far.