Lightning could worsen Line Fire east of L.A. already threatening 35K homes, buildings NBC NewsPhotos: Line Fire threatens thousands of homes in San Bernardino County KTLA Los AngelesTerrible air quality, smoky conditions in parts of Southern California due to fires Los Angeles TimesLine Fire near Highland burns more than 20,000 acres, forces evacuation: live updates ABC7 Los AngelesThousands evacuate as wildfires rage across Northern and Southern California Yahoo! Voices