Sunday thru Tuesday – A cold morning (Sunday) followed by a cool spring day with light winds. Two more weak shortwaves will transit the region move into the Pacific Northwest Monday thru Tuesday with precipitation will remain north of the forecast region. Temperatures will continue their warming trend back to near average for Tuesday. Winds will increase a bit Tuesday as the pressure gradient tightens over the region ahead of the next storm system with winds of 20-30 mph range.
Wednesday thru Friday - Low-pressure system deepens off the Pacific Coast and starts to move inland on Wednesday, bringing another round of gusty winds, valley rains and mountain snow for the middle part of the week. Models are in pretty good agreement with very high chances for precipitation in the forecast in the Sierra. Subtropical moisture will get pulled up into this system and push into the Sierra Wednesday into Thursday. Total precipitation has been a little less certain, but this still look to be rather significant for an April storm. Storm total precipitation in the Sierra looks to exceed one inch, with over a foot of snow likely for the high Sierra during this time. The storm system moves out of the area on Thursday night with some lingering light showers continuing in the Sierra into Friday.