The storm track delivers two large storm systems to the West this weekend. That same storm track delivers two Alberta Clippers to the Northeast with lighter snows followed by a surge of warmer air.
Northeast: The first Alberta Clipper hits Friday night into Saturday with light snow accumulations at the ski areas. Note: The East Coast will experience a "near miss" by a powerful area of low pressure. At this point it stays offshore. The second Alberta Clipper brushes the ski areas with light snows on Saturday afternoon through Sunday morning. A surge of warmer air moves in during the day on Sunday. A third Clipper may brush the area with a rain/snow mix on Monday. The first two Clippers will drop the most snow in Vermont, New Hampshire and Maine.
California: I count three storm systems delivering snow between Thursday and Sunday. The first storm system on Thursday is minor and only brushes Northern California with light snow at Tahoe. The second storm is much stronger on Friday continuing on Saturday. It has the potential to deliver 1 to 3 feet of snow from Tahoe south to Mammoth. A third storm system hits on Sunday and trickles into Monday. This storm looks quite strong as well but takes a more southern track. That means some snow for Tahoe, but the heavier snow accumulations will be near Mammoth and south to around Big Bear.
Montana, Idaho and Wyoming: Two storm systems deliver snow between Thursday and Sunday. Snow levels with the first storm will run a little high with some mixing possible. The first storm system arrives Thursday afternoon and continues on Friday (hits Idaho first) with light to moderate snow accumulations from Schweitzer to Whitefish, Sun Valley, Big Sky and Jackson Hole. The second storm system looks stronger and arrives in Idaho Friday night then slides into Montana and Idaho through Saturday and maybe even Sunday morning. That storm delivers heavy snow accumulations and colder air.
Colorado, Utah and New Mexico: Two storms systems deliver snow between Saturday and Monday. The first storm arrives late Friday into Saturday in Utah and then slides into Colorado mid-day Saturday. This first storm looks really good for the Wasatch ski areas with up to 2 feet in Little Cottonwood Canyon at Alta and Snowbird.
The second storm system takes a more southern track and arrives in Utah and Colorado on Sunday afternoon and continues on Monday. The southern track of this storm may have an impact on snow totals for the Wasatch ski areas. It will focus the heaviest accumulations in Southern Utah and the Southern half of Colorado.
This second storm could deliver up to a few feet of snow to Silverton Mountain and Wolf Creek. Even further north along I-70, I expect significant accumulations between Sunday and Monday at Vail, Snowmass, Aspen, Crested Butte and Monarch. New Mexico is in for heavy snow accumulations at Taos and Angel Fire from Sunday into Monday.