Streamers fished on slow sinking lines are effective all day. Best access is with a float tube or pram. Look for callibaetis hatch in coming weeks. Good flows are 300 cfs or below. Current flow info.
Fishing is tough due to high water.
Be sure to use enough split shot to get to the bottom. With no more rain, water levels might drop in the next week, and fishing should pick up quickly. Access below the New Hogan Dam. Good flows below the Afterbay are 2000 cfs or below. Concentrate on fishing the riffles and behind spawning steelhead.