An active weather pattern will have several fast-moving storms move through both the East and the West. Timing is everything to catch the best conditions through this weekend.
Eastern U.S. & Canada
It's been active across the east, with more variable conditions expected in the days ahead. Temperatures will ebb and flow for the east, having you eyeing the weather closely for best conditions. A chilly and mainly dry Thursday and Friday will allow new snow making at night to give trails a bit of powder cushion. A large, mainly soggy storm starts the weekend (waterproof gear, anyone?) for most of the northeast ski areas, followed by a big cool down Sunday into Monday as a potent cold front blows through. This colder air will allow mountain-driven and lake-effect snow showers, particularly in New York's Adirondacks, and Vermont's Green Mountains. Look for variable conditions, and best bets at upstate New York and Midwest ski areas this weekend, including Caberfae Peaks and Boyne Mountain in Michigan on Saturday, with Gore, Whiteface, and Jay Peak by Sunday.
East Snow: Forecast general snow amounts through the weekend in the east vary due to frequent temperature changes (WeatherBell)
Once the cold returns by early next week (Dec 15-16), a weak, quick-moving system could bring more snow from Pennsylvania to southern New England around Tuesday (Dec 17). Totals could reach a few inches.
Western U.S. & Canada
The elevation of the western U.S. mountains will help generate snow at the ski areas. Most of the activity to end this week will be across the Pacific Northwest,western Canada, and northern Rockies. Scattered mountain snow Thursday-Friday will generally allow 3-7” inches from the Cascades to the northern Rockies. Locally higher (much needed) totals of 10-20”+ will fall in the Washington and Oregon Cascades, and likely the highest peaks of Idaho and western Wyoming. The very highest mountain tops will be measuring in feet before the weekend hits. Best bets, pre-weekend- include Schweitzer, Crystal Mountain, and Mt. Bachelor in the northwest -- plus Sundance, Park City, Snowbird, Vail, and Jackson Hole join in Friday.
Utah's peaks will also be a "high end" snow generator through the week's end, with hot spots over a foot through Friday (NWS Salt Lake City/Twitter)
The pacific northwest mountains will generate the most snow with a late-week storm with inches toward the bases, and feet at the peaks (NWS Seattle/Twitter)
By the weekend, snow spreads into California’s northern Sierra Nevada range and again hits the interior Rockies. Look for an additional 4-8” for many, with locally 8-14” at the highest peaks through the weekend. Best bets are Sierra-at-Tahoe, Kirkwood, and Heavenly in California, Colorado’s Beaver Creek, Cooper, and Monarch join in by Sunday.
Mountains will help generate these multi-day snow totals in the west through the weekend (WeatherBell)