The weather pattern is shifting into spring mode with warmer temperatures and more rain than snow in many locations. The bulk of new snow falls in Idaho, Montana and Wyoming between Sunday and Wednesday.  

Wyoming, Montana, Idaho: This is where the bulk of new snow will occur over the next seven days. I'm forecasting warm and dry conditions to start and then one to two storm systems move in and stall for a few days. It starts Saturday night and continues through Wednesday delivering heavy rain/snow accumulation. Expect heavy snow accumulations at higher elevations. The colder days are Monday, Tuesday and Wednesday.  

Pacific Northwest: One slow-moving storm system delivers rain/snow between Saturday and Tuesday. I'm forecasting moderate to heavy snow accumulation on the higher volcanoes and Cascade peaks.  

Northeast: I'm forecasting two storm systems, but both deliver mostly rain to the ski areas and mountains. The first storm continues with rain on Thursday. The second storm delivers mostly rain between Friday night and Sunday morning. Colder air will temporarily move in on Sunday.  

Colorado, Utah: Loveland and Arapahoe Basin could see a snow shower Thursday then it's mostly dry and warming up significantly. Then it's a spring mix of afternoon rain/snow showers plus one storm system between Sunday and Tuesday. Snow amounts look light to moderate and occur at higher elevations. A second storm system is possible Wednesday.

California: One storm system affects the mountains over the weekend with rain and snow accumulation. Snow amounts look light to moderate at higher elevations from Tahoe to Mammoth. A second storm could arrive by the middle of next week.

Whistler/Blackcomb: One slow-moving storm system delivers rain/snow between Saturday and Tuesday. It looks like mostly rain lower on the mountain and snow on the upper mountain. 

Tomer's Take: On Friday ski in the sunshine at Loveland or A-Basin, the Pacific Northwest on Saturday and Idaho or Tahoe on Sunday. As a bonus, ski Idaho or Montana on Monday in the heavy snow.   

 Copyright: Meteorologist Chris Tomer