The Cascade Corner is starting to shape up. Flows have been dropping and the water is clearing up. While things are certainly better than they were last week, the river is only going to improve with time.
Mayflies such as green and brown drakes and PMDs are beginning to show up in great numbers over on the Fall. Look for good dry fly action in the mornings and evenings. Nymphs are also very productive all day.
The Cascade Corner is just about to come into its prime. While it is fishable now, I would wait another few days for it to really turn on.