I personally don't like the prediction tables as much as I like to see actual river level data.
So I look at this: http://ahps2.wrh.noaa.gov/ahps2/index.php?wfo=pqr
Just put your pointer on the gage station your interested in, click, and up pops the data.
Add for Chinook Landing use the Vancouver Gage & ~1hr per day to the high for a prediction for the weekend.
The prediction tables have lied to me one too many times.