A pair of powerful storm systems will crash into the West Coast through early next week. First storm dropping into California has already plastered parts of the Pacific Northwest with snow. Second storm this weekend will deliver blinding mountain snow in the Sierras and rain in the lowlands. Moderate to heavy snow will push eastward into the Intermountain West and Rockies. Heavy snow, in addition to strong winds, likely leads to backcountry avalanches. Record to near-record cold is a good bet Friday morning from Washington state into Northern California.
