If the Hoh is running at about 6,000 CFS or less then the Bogie, Calawah and the Soleduc will be in fishing shape generally. Since the Hoh is the only river that has a gauge in the Forks area the Hoh is my datapoint for determining whether it's worth the trip over or not. When the Hoh is below about 3,500 CFS then the Forks rivers are going to be fairly clear. In the 3,000 to 3,500 CFS range the Hoh will be generally fishable.