Dense fog advisory in place for Delta until Monday midday visibility limited to 1/4 mile
Dense fog advisory until noon with quarter-mile-or-less visibility; driving can be hazardous—slow down, use low-beams, keep distance, and pull over if necessary.
Delta placed under a frost advisory Monday temperatures at a low of 33
A frost advisory covers multiple Sacramento and San Joaquin Valley areas for Dec. 29, 1–9 a.m., with temperatures forecast near 33–36°F threatening sensitive outdoor plants.