Riffle fishing has not reached its peak on the river. Best riffle fishing method these days is to use dry-dropper combination. Otherwise try hitting the banks with your favorite chernobyl type big enough to support a small bead head dropper. This technique has been working very well on the upper river. Be ready to break out streamers at the end of the day.
From a fishing standpoint we have been fortunate to have stable flows below Palisades Dam for several weeks. According to US Bureau of Reclamation it is likely that flow out of Palisades could remain constant through August to replenish water in American Falls Reservoir and to maintain flows for irrigation just above the reservoir. When water in the reservoir is at a comfortable volume to cover irrigation and demand for it just above the reservoir slows, look for flow out of Palisades to drop. We will be in contact with US Bureau of Reclamation to keep on top of flows in the South Fork.