Flow out of Palisades Dam remains around 900 cfs and picks up to around 1200 cfs by Heise, But the reservoir above currently is only 25% full. Further upstream, Jackson Lake is only 20% full. So the Snake River drainage needs a lot more snow to fill both before irrigation demands begin. Let’s hope the remaining winter brings on enough to fill both and result in a good flow of water through the river below.
Flow out of Palisades Dam is holding around 900 cfs which is the likely flow for the rest of the winter. The reservoir is about 22% of capacity and snow pack in the drainage above is good. . Right now the Heise and Lorenzo gauges are iced up, so readings there will have to wait for warmer conditions. As expected, fishing is slow. Midge cluster patterns provide some top water action during nicer weather. Rubber leg and streamer patterns bring some action at times.
Sporadic midge activity will be the only time for top water action from now through the winter. “Blue Bird” days will provide times when such activity peaks. Otherwise, most fishing success will come from presenting streamer, woolly bugger, and rubber leg patterns.
Flow in the river is staying much the same as in recent weeks. The foremost thought in water manager’s minds is to fill Jackson and Palisades Reservoirs. All water users hope that this winter will provide enough snowfall in the drainage to do so.
Palisades Reservoir is gradually filling. Now it is at 12% of capacity. Today USGS flow gages show about 890 cfs at Irwin, 1400 cfs at Heise, and 950 cfs at Lorenzo. Flows throughout the winter will likely be around these amounts. We will keep track of these flows because of the huge public interest in how winter water conditions will impact to next year’s season.
With respect to fishing; streamer, rubber legs, and woolly bugger patterns will be most effective for months to come. During this time top water fishing will be somewhat sporadic and reduced to using midge life cycle patterns
We might be down to winter maintenance flows ( about 950 cfs at Irwin, 1400 cfs at Heise, 850 cfs at Lorenzo). Water is becoming too cold for BWO activity, so top water fishing may be down to only midge activity. Presenting streamer and woolly bugger patterns will get you more activity in these pre-winter days.
Flows along the river are about 950 cfs at Irwin, 1410 cfs at Heise and 900 cfs at Lorenzo. These could be much of what we will have during the winter as all effort will be made to fill Palisades Reservoir. Low flows or not, now is the time to present streamers as brown trout are migrating. On going further downstream, the more brown trout will be encountered.
Flow out of Palisades Dam was dropped to 825 cfs today. This decrease has yet to reach downstream, so is yet to be detected by Heise and Lorenzo flow gages. Flow into the Dry Bed has been stopped which will impact flows at these gages. This drop will certainly concentrate fish in deeper waters, dry up many side channels, impact aquatic life forms, and add dangers to boating.
Flow in the river is now at 1310 cfs at Irwin,1860 cfs at Heise, and 428 cfs at Lorenzo. These flows make walk-in wade fishing of holes and deep runs most attractive. Many side channels are de-watered. IDF&G salvage orders are in place for the entire canal system meaning fish in these waters, including cutthroat trout, can be creeled by any legal means. Refer to the IDF&G 2019-2021 Fishing Seasons and Regulations bulletin or web site to determine legal methods and regulations for doing so. Consider that these fish, if not harvested, will be wasted.
Flow out of Palisades Dam was reduced yesterday to 1320 cfs ( now 2030 cfs at Heise, 700 cfs at Lorenzo ). Flow this low can de-water many side channels. Especially from Lorenzo on down, wading is the best way to approach the river. BWOs still offer good top water fishing, but presenting streamers and woolly bugger types is gaining in being effective.
What applies to the Henry’s Fork applies with respect to fishing strategy applies here. Palisades Reservoir is at only 5% of capacity, and with winter snowfall quantity ahead uncertain, further reductions in flow could happen.