Two storms will roll ashore from the Pacific this week, with one aiming for Southern California followed by a second larger storm that will blast much of the West Coast with drenching rain and heavy mountain snow.

California is facing a series of storms bringing rain and snow, with a second, more intense storm impacting the entire state by Wednesday and Thursday. Heavy rain may cause urban flooding and landslides,

Several feet of snow will fall across parts of the Sierra on Wednesday and Thursday in what will be one of the most powerful storm systems to impact California’s mountains so far this winter. The midweek storm system won’t have an excessive amount of moisture and will qualify only as a weak atmospheric river event.