Thu, Nov 5
55% model confidence
31 of 31 rivers contributing
recent flow trajectory rising
The Alley Index
A rule-based forecast built from NWS weather, AHPS flow predictions where available, recent storm pulse behavior, and current river scoring.
How Almanac forecasts river conditions · How fishability is scored
Forecast issued Nov 4, 2026 6:00 PM EST
49
Current snapshot updated Nov 5, 2026 12:00 AM EST. This is separate from the issued forecast below.
Highest projected day
Saturday, Nov 7 — 62; model confidence 45%
A comparison within this forecast edition, not a recommendation of fishing success.
Thu, Nov 5
55% model confidence
31 of 31 rivers contributing
recent flow trajectory rising
Fri, Nov 6
46% model confidence - low
31 of 31 rivers contributing
AHPS flow forecast available
Sat, Nov 7
45% model confidence - low
31 of 31 rivers contributing
AHPS flow forecast available
Sun, Nov 8
42% model confidence - low
31 of 31 rivers contributing
recent flow trajectory dropping
Mon, Nov 9
41% model confidence - low
31 of 31 rivers contributing
incoming rain matched to recent pulse behavior
Tue, Nov 10
37% model confidence - low
31 of 31 rivers contributing
incoming rain matched to recent pulse behavior
Johnson Creek
Model assessment: excellentHuron River
Model assessment: goodEighteenmile Creek (Niagara)
Model assessment: goodChagrin River
Model assessment: goodOak Orchard Creek
Model assessment: goodGenesee River
Model assessment: goodSandy Creek (Hamlin)
Model assessment: goodConneaut Creek
Model assessment: goodCuyahoga River
Model assessment: goodCattaraugus Creek
Model assessment: goodIrondequoit Creek
Model assessment: goodRocky River
Model assessment: fairEuclid Creek
Model assessment: fairSalmon River
Model assessment: fairBlack River (Watertown)
Model assessment: fairSandy Creek (Adams)
Model assessment: fairAshtabula River
Model assessment: fairVermilion River
Model assessment: fairGrand River
Model assessment: fairBrandy Run
Model assessment: fairElk Creek
Model assessment: fairWalnut Creek
Model assessment: fairTwenty Mile Creek
Model assessment: fairCrooked Creek
Model assessment: fairChautauqua Creek
Model assessment: fairEighteen Mile Creek
Model assessment: fairBlack River
Model assessment: fairCanadaway Creek
Model assessment: fairSilver Creek
Model assessment: fairBuffalo Creek
Model assessment: fairCazenovia Creek
Model assessment: fairJohnson Creek
Model assessment: excellentEighteenmile Creek (Niagara)
Model assessment: excellentSandy Creek (Hamlin)
Model assessment: goodOak Orchard Creek
Model assessment: goodGenesee River
Model assessment: goodIrondequoit Creek
Model assessment: goodConneaut Creek
Model assessment: goodChagrin River
Model assessment: goodCuyahoga River
Model assessment: goodCattaraugus Creek
Model assessment: goodHuron River
Model assessment: goodBlack River (Watertown)
Model assessment: goodRocky River
Model assessment: fairEuclid Creek
Model assessment: fairSandy Creek (Adams)
Model assessment: fairAshtabula River
Model assessment: fairVermilion River
Model assessment: fairGrand River
Model assessment: fairBrandy Run
Model assessment: fairElk Creek
Model assessment: fairWalnut Creek
Model assessment: fairTwenty Mile Creek
Model assessment: fairCrooked Creek
Model assessment: fairChautauqua Creek
Model assessment: fairEighteen Mile Creek
Model assessment: fairBlack River
Model assessment: fairCanadaway Creek
Model assessment: fairSilver Creek
Model assessment: fairBuffalo Creek
Model assessment: fairCazenovia Creek
Model assessment: fairSalmon River
Model assessment: fairJohnson Creek
Model assessment: excellentEighteenmile Creek (Niagara)
Model assessment: excellentOak Orchard Creek
Model assessment: goodSandy Creek (Hamlin)
Model assessment: goodConneaut Creek
Model assessment: goodCattaraugus Creek
Model assessment: goodGenesee River
Model assessment: goodIrondequoit Creek
Model assessment: goodChagrin River
Model assessment: goodCuyahoga River
Model assessment: goodHuron River
Model assessment: goodBlack River (Watertown)
Model assessment: goodRocky River
Model assessment: fairBrandy Run
Model assessment: fairCrooked Creek
Model assessment: fairEuclid Creek
Model assessment: fairSandy Creek (Adams)
Model assessment: fairAshtabula River
Model assessment: fairVermilion River
Model assessment: fairGrand River
Model assessment: fairElk Creek
Model assessment: fairWalnut Creek
Model assessment: fairTwenty Mile Creek
Model assessment: fairChautauqua Creek
Model assessment: fairEighteen Mile Creek
Model assessment: fairBlack River
Model assessment: fairCanadaway Creek
Model assessment: fairSilver Creek
Model assessment: fairBuffalo Creek
Model assessment: fairCazenovia Creek
Model assessment: fairSalmon River
Model assessment: fairJohnson Creek
Model assessment: excellentEighteenmile Creek (Niagara)
Model assessment: goodOak Orchard Creek
Model assessment: goodSandy Creek (Hamlin)
Model assessment: goodConneaut Creek
Model assessment: goodChagrin River
Model assessment: goodCattaraugus Creek
Model assessment: goodGenesee River
Model assessment: goodIrondequoit Creek
Model assessment: goodRocky River
Model assessment: fairCuyahoga River
Model assessment: fairBrandy Run
Model assessment: fairHuron River
Model assessment: fairAshtabula River
Model assessment: fairVermilion River
Model assessment: fairGrand River
Model assessment: fairElk Creek
Model assessment: fairWalnut Creek
Model assessment: fairTwenty Mile Creek
Model assessment: fairCrooked Creek
Model assessment: fairBlack River
Model assessment: fairEuclid Creek
Model assessment: fairSalmon River
Model assessment: fairBlack River (Watertown)
Model assessment: fairSandy Creek (Adams)
Model assessment: fairChautauqua Creek
Model assessment: fairEighteen Mile Creek
Model assessment: fairCanadaway Creek
Model assessment: fairSilver Creek
Model assessment: fairBuffalo Creek
Model assessment: fairCazenovia Creek
Model assessment: fairJohnson Creek
Model assessment: excellentEighteenmile Creek (Niagara)
Model assessment: goodOak Orchard Creek
Model assessment: goodSandy Creek (Hamlin)
Model assessment: goodCattaraugus Creek
Model assessment: goodGenesee River
Model assessment: goodIrondequoit Creek
Model assessment: goodRocky River
Model assessment: fairConneaut Creek
Model assessment: fairChagrin River
Model assessment: fairCuyahoga River
Model assessment: fairBrandy Run
Model assessment: fairHuron River
Model assessment: fairAshtabula River
Model assessment: fairVermilion River
Model assessment: fairGrand River
Model assessment: fairElk Creek
Model assessment: fairWalnut Creek
Model assessment: fairCrooked Creek
Model assessment: fairBlack River
Model assessment: fairEuclid Creek
Model assessment: fairSalmon River
Model assessment: fairBlack River (Watertown)
Model assessment: fairSandy Creek (Adams)
Model assessment: fairTwenty Mile Creek
Model assessment: fairChautauqua Creek
Model assessment: fairEighteen Mile Creek
Model assessment: fairCanadaway Creek
Model assessment: fairSilver Creek
Model assessment: fairBuffalo Creek
Model assessment: fairCazenovia Creek
Model assessment: fairJohnson Creek
Model assessment: goodEighteenmile Creek (Niagara)
Model assessment: goodSandy Creek (Hamlin)
Model assessment: goodCuyahoga River
Model assessment: goodOak Orchard Creek
Model assessment: goodGenesee River
Model assessment: goodIrondequoit Creek
Model assessment: goodRocky River
Model assessment: fairConneaut Creek
Model assessment: fairChagrin River
Model assessment: fairCattaraugus Creek
Model assessment: fairHuron River
Model assessment: fairAshtabula River
Model assessment: fairVermilion River
Model assessment: fairGrand River
Model assessment: fairBlack River
Model assessment: fairEuclid Creek
Model assessment: fairSalmon River
Model assessment: fairBlack River (Watertown)
Model assessment: fairSandy Creek (Adams)
Model assessment: fairBrandy Run
Model assessment: fairElk Creek
Model assessment: fairWalnut Creek
Model assessment: fairTwenty Mile Creek
Model assessment: fairCrooked Creek
Model assessment: fairChautauqua Creek
Model assessment: fairEighteen Mile Creek
Model assessment: fairCanadaway Creek
Model assessment: fairSilver Creek
Model assessment: fairBuffalo Creek
Model assessment: fairCazenovia Creek
Model assessment: fairThis is a deterministic forecast, not an AI prediction. Flow uses AHPS when available, then storm pulse signatures, then recent log-linear flow trajectory, then a flat baseline fallback. Temperature and clarity are conservative heuristics. Confidence drops as the horizon gets farther out, especially on days 5-7.
Model confidence is a heuristic input-quality score, not a validated probability of accurate conditions, fish presence or fishing success. Historical issued forecasts keep their original values and methods.
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