Here is an interesting link about Atmospheric Rivers and forecasting heavy rain events. 
The next four days look fantastic! In fact, Friday and Saturday will be warm with highs inland approaching the low 80s. Although morning fog will loom, I'm not expecting any rain.
The lastest imagery continues to show neutral conditions along the equatorial Pacific. This trend will probably persist for the next couple months. The winter forecast will be a challenge this year! I plan on posting my outlook by December 1st.
An isolated light shower will be possible Friday, otherwise, most of the day looks dry. A few showers are still possible Saturday into early Sunday. It doesn't look like a lot of rain, but you will want to keep your umbrella handy if you plan to be outdoors. As you can see on the image to the left, the vast majority of rain will hit the Central Coast and especilly Northern California. Snow levels will stay well above 5000 feet, so only the tallest mountains will see any accumulations.
INLAND
