Water flow and temperature conditions have been constant for several days now, and fishing success seems to be good anywhere on the river. Choosing time of day is more important than where to fish on the river. Afternoons into evenings lately have been best times to fish for a couple of reasons. First the evening caddis emergence still attracts fish throughout the river. Second terrestrial insects are more active during the PM hours. A strategy we hear that is working well is to trail a black ant pattern about eighteen inches to two feet behind your favorite hopper pattern. Once again, choose patterns for both that you believe are visible to your eyes, and consider that fish may refuse that larger, more visible hopper pattern for the smaller less visible ant pattern. Reasons for declining riffle fishing success include slightly warmer water coming from the reservoir (warmer water means les dissolved oxygen), and that PMD and albert hatches have peaked for the year. The next big mayfly hatches, BWO and mahogany duns are a few weeks away.
Be aware that the upcoming three-day weekend is a “last hurrah” for a lot of enthusiasts. Thus expect a lot of traffic at boat launches and around popular fishing locations on the river. Patience will help, and so will considering the above comments about targeting evenings for being a good choice of when to fish.