An atmospheric river brought heavy rain, serious mountain snow and strong winds to California that flooded roads and rivers and triggered landslides, with at least two storm-related deaths reported – and more rain is on the way. Cuase: Over 10 inches of rain fell in some areas, including 10.87 (276 mm) at Manchester, on the coast west of Sacramento, and 9.89 inches at Mining Ridge, 90 miles south of San Jose," AccuWeather Meteorologist and Digital Producer Jesse Ferrell said.55 in (140 cm) of snow at Mammoth Mountain.