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Cowlitz River · Washington

Castle Rock Bend

Target: Coho Salmon

model v1.0.0 · Heuristic Baseline
freshly scored · 8/31/2026, 5:45:30 AM
85/100
Excellent
Confidence37% · Low confidence

Confidence is reduced because fish counts, water temperature, recent angler reports were unavailable. The score reflects only the sources that reported in.

Angler briefing

generated · claude-haiku-4-5

Castle Rock Bend is scoring well for coho at 85/100, making it an excellent prospect, though the 37% confidence reflects significant gaps in real-time data. The high score is primarily driven by favorable weather conditions (23 pts)—clear skies, light winds, and falling pressure are all advantageous—but the river flow of 2550cfs is running above your ideal range of 600–2200cfs, which is limiting the potential (61 pts). Without current fish counts, water temperature, or recent angler reports, plan accordingly: conditions look promising on paper, but verify flow trends and ask locals before committing.

What drove the score

Factor breakdown

River flow

+61pts

2550cfs is above ideal (600–2200cfs).

view source ↗

Weather & pressure

+23pts

0% cloud, 8 km/h wind, falling pressure.

view source ↗

Excluded — source unavailable

  • Fish countsweight 30% · dropped
  • Water temperatureweight 25% · dropped
  • 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 · 1680 counted

Same inputs · every model version

v1.0.0active
Heuristic Baseline
85
37% conf
v1.1.0candidate
Thermal-Weighted Candidate
88
36% conf
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Provenance

inputs hash
617cc0d2
reproducible
✗ mismatch
usgs gauge
14243000