Sacramento, CA…From the National Weather Service…”The key to the storm door for northern California may have been found with the first in a series of weather systems expected to move into northern California late today and tonight. Another system will move through the north state late Friday into Saturday. Neither of these systems is expected to contain a lot of rainfall or high elevation snow but most of Norcal should get some precipitation. After a brief break, more possibly wetter systems are expected early next week.”