Rams fans won’t have Southern California’s blue skies and sunshine to comfort them after the team’s 13-3 Super Bowl loss to New England on Sunday. Scattered showers and snow in the mountains are expected throughout the Southland through Tuesday night as back-to-back cold troughs of low pressure move over the area, according to the National Weather Service. By noon, the heaviest rains had passed through Ventura and Los Angeles counties and a flash flood warning issued from Thousand Oaks and Agoura Hills to Pacific Coast Highway had been lifted.