Despite late season snow - with many Californian resorts receiving up to a metre of new snow in the past week following on from more good snowfalls over the past month, it seems unlikely that there'll be anything like the repeat of last season's late Spring and early summer opening in the area.
Currently Alpine Meadows, which has said it will stay open at weekends to at least May 13th, is the only Tahoe resort to announce plans to stay open beyond the end of the month. Mammoth Mountain to the south which has also received 90cm of new snow in the past week has said it will stay open to at least May 28th (Memorial Day) however.
Colorado's ski areas have largely closed - Arapahoe Basin, Loveland and Winter Park remain open with mid-mountain bases around 1.2m (four feet). Also open and planning to stay open in to May at least are Crystal Mountain in Washington State and Timberline in Oregon.
In Utah only Brighton and snowbird are open with Alta saying they'll re-open the next few weekends. The state has seen good snowfall of up to 61cm (two feet - at Alta) in the past week and Snowbird says it will be open weekends through May while the snowpack - currently averaging 2.5m mid-mountain - remains.
On the East Coast with the closure of Sugarloaf and Sunday River in Maine at the weekend (Sunday River pointing out that despite a tough snowfall season it had in fact opened in late October and been able to make snow on more than 200 days of its near six month season) only Killington in Vermont is still open with conditions rather more wintery that much of the winter at present. Two lifts and six runs are open there.