
By Jason Thatcher
The first few months of 2019 have been wet ones. Reservoirs are at, or near, max-pool. Rivers and streams are running higher than usual, and probably will be for most of the spring and summer. The high water presents both unique challenges and unique opportunities for the fly angler.
One of the first things we should all be aware of is safety around the higher, colder water. Moving water becomes even less forgiving and extra care should be taken when boating or wading. When boating, the increased flows will make a river far more pushy and an operator will need to plan movements such as obstacle avoidance well in advance. Looking even farther ahead and thinking a few moves ahead than usual is critical to avoid getting in trouble. If wading, consider wearing a PFD, use a wading staff, and always wear your wading belt. Pretty common sense stuff, right?
A great advantage to fishing in high flows is it tends to concentrate fish in the soft water. Sometimes soft water is at a premium and it holds all the fish. For example, I often fish the Sacramento River at very high flows from a drift boat with nymphing gear. Every soft spot has trout in it. The flows become so heavy in 90% of the water, it pushes the trout to the edges. We will throw our rigs into the back eddies created by flooded blackberry bushes and trees. If the cast is accurate, its fish on.
When breaking down a particular piece of high water, look for current breaks, structure, back eddies, and softer water mere feet from the banks. Anything that offers relief from the big water. You might be shocked at how tightly the fish get sucked up to a bank. The inside bends and the downstream side of islands should be targeted as well. I recall one particular summer of guiding in Alaska where there was an excess of water early in the trout fishing.