I grew up on the western slope. Our complaint, as kids, was that we rarely got any measurable snow. The big storms always came from the east and dumped their snow over the eastern slope and crest of the Sierras before getting to us. We got only leftovers, usually in the form of rain.
CALIFORNIA MAJOR WATER SUPPLY RESERVOIRS
CURRENT CONDITIONS:
https://cdec.water.ca.gov/reportapp/javareports?name=rescond.pdf