The 48-h total precipitation ending 11:48 PM last night from Seattle Rainwatch shows the big differences over the lowlands (this is not valid over the mountains or south of Olympia). Some locations got to 5 inches or more. And there was a well-defined rainshadow NE of the Olympics.
The forecast worked out quite well, both for precipitation and wind. The air was quite unstable after the system went by and there are reports of a tornado at the Frederickson Boeing plant in Puyallup, Washington. (see pic)