Another weak cold front moved through Southern California on Monday morning, bringing the first rain of the season to a large swath of the state. Drivers were met with light rain and slick roads that jammed traffic in parts of Los Angeles and caused multiple crashes. A collision on the 710 Freeway caused a major closure near Atlantic Boulevard in Vernon. The crash occurred around 2:30 a.m. and was cleared just before 4 a.m., according to the California Highway Patrol. Another crash on the eastbound 91 Freeway in Long Beach left all lanes closed around 2 a.m., the CHP said.