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Cowlitz River · Washington

Castle Rock Bend

Target: Coho Salmon

model v1.0.0 · Heuristic Baseline
freshly scored · 6/30/2026, 7:28:18 PM
59/100
Fair
Confidence37% · Low confidence

Confidence is reduced because 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 a fair bet today with a 59/100 score, though confidence is modest at 37% due to missing water temperature and angler report data. Fish populations are strong—recent counts of 1680 are up 40% versus baseline—but elevated river flow at 5140 cfs is well above the ideal 600–2200 cfs range, which will likely make salmon harder to locate and hook. Stable weather with overcast skies and light winds provides decent conditions, but the high water is the primary limiting factor.

What drove the score

Factor breakdown

Fish counts

+38pts

Recent count 1680 vs 1200 baseline (+40%, rising).

view source ↗

Weather & pressure

+13pts

100% cloud, 12 km/h wind, stable pressure.

view source ↗

River flow

+8pts

5140cfs is above ideal (600–2200cfs).

view source ↗

Excluded — source unavailable

  • 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
59
37% conf
v1.1.0candidate
Thermal-Weighted Candidate
63
36% conf
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Provenance

inputs hash
c1404acb
reproducible
✗ mismatch
usgs gauge
14243000