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Fishing Reports

Fly Fish Food Jimmy's / Fishing Reports (Page 43)

Small Streams, August 6th, 2022

Palisades Reservoir tributaries are at base level flows with caddis life cycle, terrestrial insect and traditional attractor patterns, dry and wet, producing. Western green drakes should be significant on these waters soon.

If you travel to Teton Valley via State Highway 31 from Swan Valley, expect some delays because of two construction areas on the west side of Pine Creek Pass. The Teton River is fishing well with PMDs in full emerging swing and terrestrial insets making near-bank presentations very effective throughout the river in the valley. Weekends and mid-days will bring on a number of recreational floaters. Some are being guided by professionals.The river below the basin will be warmer because of the canyon heating during daytime hours. Beware of rattlesnakes here if you venture away from the river.

Warm River Spring

Warm River just below Warm River spring offers more tranquility than many area small streams. Mainly caddis-stone fly water here it also offers a small number of PMDs and a growing number of bank-side terrestrial insects.

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South Fork, August 6th, 2022

Slight drop in water out of Palisades Reservoir puts flows near historic levels ( 10400 cfs at Irwin, 10400 cfs at Heise, 6500 cfs at Lorenzo). Water is clear, cold and ideal for aquatic insect activity. PMDs and caddis make afternoon dry fishing good on riffles. Hopper-dropper combinations presented close to vegetated banks continue to produce, but best news is that mutant golden stone flies are appearing. Fish early in the day for these critters with floating patterns about the size of normal for those of golden stones.

Especially during weekends boat launch locations, particularly those near highways, will be crowded with recreational floaters. So be tolerant.

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Big Lost River, August 6th, 2022

With flow out of Mackay Dam a bit below 300 cfs, wading is much safer. A few western green drakes and golden stones are likely still around, so their life cycle patterns should be in that fly box. The most effective dry patterns, however, will be those for terrestrial insects. Hopper patterns in sizes large enough not to be sunk by a suspended nymph pattern of choice should be particularly effective.

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Henry’s Fork, August 6th, 2022

Throughout the river Early AMs and evenings offer the best fishing as well as the lowest number of recreational floaters. These folks are most numerous during weekends with Box Canyon, Warm River to Ashton, Ashton to Chester and the river below St. Anthony being where they are most concentrated.

For now, consider minimizing visits to the the river from Ashton Dam to Chester to give trout a break from tough recoveries through being played in warm water..

Warm River to Ashton offers good fishing especially for those concentrating presentations toward banks. We suggest hopper patterns and such as chubby chernobyls on top to drift suspended nymph patterns of choice in the water column below.

Headlines from Dr. Rob Van Kirk’s Henry’s Fork drainage water report compiled yesterday are below.

Headlines:  

  • Yesterday’s mean temperature was 3 degrees F below average, and a few showers were recorded in the Teton sub-watershed.
  • Natural flow in Fall River and Teton River continues to benefit from the effect of Tuesday’s rain, while diversion dropped by another 7% yesterday.
  • Outflow from Island Park Reservoir was reduced to 900 cfs yesterday, and additional reductions are likely over the next week.
  • Fishing conditions: Streamflow across the watershed is well below average for the date, turbidity is average in all stream reaches, and water temperatures have likely peaked for the year.

Rob Van Kirk, Ph.D.

Senior Scientist

Henry’s Fork Foundation

P.O. Box 550

Ashton, ID 83420

208-881-3407 CEL

208-652-3568 FAX

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Henry’s Fork August 2nd, 2022

Throughout the river early AMs and evenings remain the best fishing. Thinking of trying the river during weekends? Be ready to share it with recreational floaters.

Headlines from Dr. Rob Van Kirk’s Henry’s Fork drainage report compiled yesterday are below.

 Headlines:

  • The daily maximum temperature yesterday was the warmest since July 26 of last year, but cooler temperatures are expected over the next week.
  • Diversion and natural flow both dropped a little yesterday, increasing stream flow in lower Fall River and lower Henry’s Fork.
  • At 240 cfs, current Crosscut Canal delivery to the Teton River is meeting irrigation demand and stream flow targets there after exchange well pumping was reduced a few days ago.
  • Island Park Reservoir is 65% full, compared with 67% full. Outflow reductions are possible this week, depending on stream flow and diversion response to rain and reduction in outflow from Grassy Lake.
  • Flow out of Grassy Lake Reservoir will be reduced resulting in a 100 cfs flow reduction in Fall River.

Rob Van Kirk, Ph.D.

Senior Scientist

Henry’s Fork Foundation

P.O. Box 550

Ashton, ID 83420

208-881-3407 CELL

208-652-3568 FAX

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Yellowstone National Park, July 30th, 2022

The Park has opened the road from Tower Junction to Slough Creek to auto traffic. The road from the Northeast Entrance ( Silver Gate) to Slough Creek remains closed to auto traffic.

Beula Lake

Right now Beula Lake offers some of the fastest still water fishing in the park with speckled dun and damsel fly activities bringing on big time cutthroat trout responses.

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Still Waters, July 26th, 2022

Reservoirs owned by irrigation companies are being drawn down to satisfy agricultural demands. Fish in such as such as Chesterfield, Twenty-Four Mile, Treasureton and Hawkins Reservoirs will move to cooler, deeper water. Fish in smaller, shallower still waters not subjected to irrigation draw down such as Horseshoe and Teardrop Lakes and the Sand Creek Ponds and the Harriman Fish Pond will become less active during daytime hours. For any of these still waters fishing is most successful early in the day after surfaces have cooled through radiating heat away during night time.

So the old saying “The Early Bird Gets The Worm ” applies to fishing still waters during the summer dog days!

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Henry’s Lake, July 26th, 2022

Creek mouths and springs are the only good places for action these days. That means there will be plenty of other Henry’s Lake fishing enthusiasts at these locations.

Fisheries managers and much experienced Henry’s Lake anglers tell us that Utah chubs have resided in Henry’s Lake for a long time. They were discovered there years ago. The Idaho Department of Fish and Game has completed some research on the interaction of these undesirable species on resident cutthroat trout and published the results which are fascinating. View the entire study and its findings at: https://idfg.idaho.gov/blog/2022/07/affect-utah-chub-yellowstone-cutthroat-trout-henrys-lake.

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South Fork, July 26th, 2022

Flow out of Palisades Reservoir remains constant and right at the historic level throughout the river.

There is no significant change that we suggest with respect to fishing strategy since our report of July 23rd except that stream-side terrestrial insect populations are increasing during these “dog days” of summer. Consider that when you assemble a suite of flies for the next visit to the river! Mutant golden stone flies have not begun to emerge.

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Henry’s Fork, July 26th, 2022

Other than spinner falls and caddis activity, we are in the time of the season where terrestrial insects are taking over as a major food form for trout.anywhere you fish the river. Be sure you have patterns for such in that fly box. And as time passes through summer, ant patterns will become of increasing effective among these.

Here are headlines from Dr. Rob Van Kirk’s Henry’s Fork drainage water report filed yesterday AM.

Headlines:  

  • Warm, dry weather will continue for the rest of the week.
  • Natural flow stayed constant at 63% of average yesterday, while diversion continued to drop and is 88% of average.
  • Outflow from Island Park Reservoir was reduced by 100 cfs yesterday, and additional reductions are likely over the next week.

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