735 AM PST Sun Jan 7 2018 Los Angeles County San Fernando Valley- Los Angeles County San Gabriel Valley- Including the cities of Woodland Hills, Northridge, Burbank, Universal City, Pasadena, San Gabriel, and Pomona 735 AM PST Sun Jan 7 2018 .NOW... Patchy dense fog will continue across the San Fernando and San Gabriel Valleys through 900 AM PST. Visibilities of one quarter mile or less can be expected across local roadways, including the 101 and 134. If dense fog is encountered, slow down, keep plenty of distance between vehicles and use low beam headlights.