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Umpqua River · Oregon

Elkton Drift

Target: Coho Salmon

model v1.0.0 · Heuristic Baseline
freshly scored · 6/30/2026, 7:26:32 PM
78/100
Good
Confidence62% · Moderate confidence

Confidence is reduced because recent angler reports was unavailable. The score reflects only the sources that reported in.

Angler briefing

generated · claude-haiku-4-5

**Verdict:** Elkton Drift rates as a good prospect (78/100) for coho salmon right now, though moderate confidence (62%) means conditions could shift quickly. **What's working:** Fish counts are up 38% from baseline at 720 fish, and river flow sits squarely in the ideal band at 1260 cfs—these two factors make up more than half your score. Weather is stable with decent cloud cover and light wind, supporting feeding activity. **What's holding you back:** Water temperature at 20.5°C is warmer than ideal; coho prefer cooler water, and this may slow aggression. More critically, recent angler reports are unavailable, so you're missing real-time intel on what's actually working on the water—fish where you can see activity if possible.

What drove the score

Factor breakdown

Fish counts

+27pts

Recent count 720 vs 522 baseline (+38%, rising).

view source ↗

River flow

+27pts

1260cfs is in the ideal band (600–2200cfs).

view source ↗

Water temperature

+12pts

20.5°C is above ideal (8–16°C).

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Weather & pressure

+12pts

66% cloud, 11 km/h wind, stable pressure.

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Excluded — source unavailable

  • Recent angler reportsweight 8% · dropped

Catch report

Did you catch fish here?

No account, no personal data — just the catch outcome.

Fish-count feed

last 6 readings
5/23/2026now · 720 counted

Same inputs · every model version

v1.0.0active
Heuristic Baseline
78
62% conf
v1.1.0candidate
Thermal-Weighted Candidate
65
68% conf
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Provenance

inputs hash
188aa9ae
reproducible
✗ mismatch
usgs gauge
14321000