Deeper Marine Layer
Areas of dense fog will develop along the coastal and the coastal basin. Western portions of the inland valleys will also see some intrusion tonight and persist into Tuesday morning where visibility may fall below a quarter-mile. Interstates impacted by the fog include but may not be limited to the 5, 8, 405, and 15. Use caution and slow down if your plans require that you drive during these hazardous conditions. Remember to use your low beams.