Here is the weather service's outlook on the first system.
Some Rain and Mountain Snow Tuesday Night through Wednesday
Minor snow accumulations above 6500 feet Wednesday.
Cooler temperatures Wednesday.
Timing and Strength
Precipitation beginning Tuesday night with most of the precipitation on Wednesday.
Dry and milder Thursday and Friday.
Snow levels lowering below the trans-Sierra passes on Wednesday.
A moderate (modest) weather system will bring some rain and mountain snow to interior northern California beginning Tuesday night and continuing on Wednesday. See the attached graphic for additional information. Showers may linger into Wednesday evening, but will end on Thursday.