My posting from yesterday is pretty much on track. The first storm has come through quickly, but the next is already moving east in the Pacific.
Please check my posting from yesterday if you missed it as my expectations for rainfall amounts have not changed much. The models today are wetter than they were yesterday for areas south of Point Conception, especially dealing with the caboose storm on Sunday. There is a difference in the GFS and European Friday south of Pt. Conception as well. The Euro makes more of that storm bringing a period of steady rain through. The GFS has just spotty showers at best. In the end, the big story is still going to be farther north where heavy rains compound over time and lead to serious flooding problems as well as the increased danger for rock slides, and in burn areas mud and debris flows.
Snow levels in the Sierra will be high, much of the time through Saturday night at, or above, 7,500 feet. Snow accumulations above 8,000 feet will be in many feet, probably 4 to 8 feet at least.
With such high amounts of water vapor, thunderstorms will bring locally very heavy rain that can cause flash flooding.
Many areas east of the Cascades this weekend will be over 100 F.
some of the moisture from Andres and newly formed Blanca could influence the weather in the Southwest
A powerful second punch is offshore right now and comes inland during the early morning hours. It will bring moderate to heavy rain for the Friday morning rush.
The main storm will move in off the Pacific Thursday and Friday.
Last year by the end of April the drought in California was very bad. Since then it has become even worse.