Western San Gabriel Mountains/Highway 14 Corridor and Eastern San Gabriel Mountains are included in a winter weather advisory issued by the National Weather Service on Saturday at 9:27 p.m. The advisory is valid from Sunday 6 a.

San Bernardino County Mountains and Riverside County Mountains are the focus of an updated winter weather advisory issued at 5:27 a.m. on Monday by the National Weather Service. The advisory is in effect until 10 a.