A persistent Low Pressure system is moving onshore and poised to dump a reasonable amount of snow in the Sierra, especially the central Sierra around Mammoth. This little low moved down the coast and was originally forecast to have little effect on our weather. However it moved onshore and held together nicely. Mammoth could receive up to 3 feet of snow from this system. Tahoe is looking at about half that by Monday morning.
Looking ahead, a ridge of high pressure will dominate our weather from Tuesday through Friday. After that another decent system will move into the area for next weekend. I will update this week.