An area of low pressure deepened rapidly today off the Washington/Oregon border. The front associated with the system will slash across the Central Coast on Thursday (primarily in the afternoon).
My forecast is largely unchanged, I expect .25-1" of rain with locally higher amounts on south facing slopes and at higher elevations.
Snow levels could lower to 3,000 feet with heavy mountain snow that could impact travel elsewhere in California. Resort snows in the Sierra could be 1-3 feet.
High pressure returns Friday and hangs around into Sunday. There is a front around on Monday but there is some question if it will be capable of producing rain, right now I just have mostly cloudy skies.