Is that snow on the Santa Monica Mountains?! I don't remember that happening often driving down through there at least once a month growing up!
Neil M. thought it was odd for a Surfliner, and it is, notwithstanding it being the normal consist for 799/798.
Mountains with snow are not the Santa Monicas, and not the coastal range behind Oxnard/Ventura. From what I gather they could be the Topatopa Mountains, one of the "transverse ranges" (running east-west) in SoCal. That's from some cursory Googling and Wiki-ing around.