The Steelhead Alley Index
Summer ModeSunday, July 26, 2026
The Steelhead Alley Index is in Summer Mode: it reads river conditions for warmwater targets while tributary steelhead are off the main menu. Today's score blends flow, water temperature, clarity, weather, barometric pressure, and active storm state for every active gauge into a single regional read.
Tomorrow's predicted Index
Storm Watch — by region
Four state+lake buckets · auto-refreshes when conditions change
OH · Erie
QuietAll quiet — no rain, no alerts, no rapid rises.
NY · Erie
QuietAll quiet — no rain, no alerts, no rapid rises.
My Alley
Your Subset Score
Personal stat — separate from the official Alley Index above. Not for citing externally.
Today's Story
What's actually biting right now: smallmouth bass in the lower river corridors, walleye near tributary mouths, panfish in the slack water. Eighteenmile Creek (Niagara) and Walnut Creek are scoring highest among Alley rivers — worth a look for warm-water targets. See the gear shelf below for warm-water tackle.
By Technique & Region
Raw composite (0–100) — not percentile-ranked
Fly
Float
Erie Tribs
Ontario Tribs
Top Today
In Trouble
- Elk Creek 45
- Twenty Mile Creek 45
Summer Field Desk — Steelhead are Quiet
Turn today's number into a summer plan
The Index is reading tributary conditions for warmwater targets. Use the summer hub to choose a species, then the field guide for the seasonal pattern behind today's water.
For the practical sequence behind these readings, use the pre-trip workflow for Steelhead Alley guides before choosing a river.
Optional in-season gear
Create idea 50pcs Fly Fishing Fly Tying Economy Metal Articulated Shanks Compatible with Game Changer 8 for Tying Streamers (10-30mm 5 Sizes)
Panther Martin PM New Single Hook Dressed Teardrop Spinners Fishing Lure Catches Trout, Perch, Crappie, Panfish, Perch, Warmouth, Sunfish & More.
QualyQualy Lighted Slip Bobbers Fishing Floats LED Bobber w/Charger 3pcs Color Change Glow Bobber for Crappie Walleyes Fishing
Whitepeak Genuine Merino Wool and Possumdown Fingerless Gloves for Men and Women | UNISEX
PENN Rival Level Wind Conventional Fishing Reel
Oumurs Motorcycle Rain Suit - Waterproof Jacket & Pants for Men & Women, Lightweight Nylon, Reflective, Multi-purpose for Riding, Fishing, Golf, Hunting, Camping
All 31 Rivers — by State
| River | Rating | Score |
|---|---|---|
|
Ohio
11 rivers · avg 59
|
||
| Conneaut Creek | excellent | 82 |
| Grand River | excellent | 82 |
| Ashtabula River | good | 73 |
| Rocky River | good | 64 |
| Cuyahoga River | good | 64 |
| Huron River | good | 64 |
| Chagrin River | good | 55 |
| Brandy Run | good | 55 |
| Vermilion River | fair | 36 |
| Black River | fair | 36 |
| Euclid Creek | fair | 36 |
|
Pennsylvania
4 rivers · avg 61
|
||
| Walnut Creek | excellent | 82 |
| Crooked Creek | good | 73 |
| Elk Creek | poor | 45 |
| Twenty Mile Creek | poor | 45 |
|
New York — Lake Erie
7 rivers · avg 43
|
||
| Cattaraugus Creek | good | 64 |
| Cazenovia Creek | good | 55 |
| Chautauqua Creek | fair | 36 |
| Eighteen Mile Creek | fair | 36 |
| Canadaway Creek | fair | 36 |
| Silver Creek | fair | 36 |
| Buffalo Creek | fair | 36 |
|
New York — Lake Ontario
9 rivers · avg 66
|
||
| Eighteenmile Creek (Niagara) | excellent | 91 |
| Sandy Creek (Hamlin) | excellent | 82 |
| Irondequoit Creek | excellent | 82 |
| Johnson Creek | excellent | 82 |
| Salmon River | good | 55 |
| Oak Orchard Creek | fair | 55 |
| Genesee River | good | 55 |
| Black River (Watertown) | good | 55 |
| Sandy Creek (Adams) | fair | 36 |
Methodology. The Alley Index is a percentile rank — today's underlying conditions composite (mean of per-river fishing scores, 0–100) is compared to the historical record on this calendar window (±15 days, all years). An Index of 73 means today is better than 73% of comparable late-season days on record. Bands: Excellent 90+, Good 70–89, Average 30–69, Poor 10–29, Blown 0–9. Refreshed hourly. Season-calibrated: summer mode uses warmwater temperature bands, transition mode follows water temperature, and steelhead mode uses coldwater steelhead bands.
Index calibrating: percentile bands tighten as the historical archive grows. When fewer than 10 comparable days exist in the window, the Index falls back to the raw underlying score so the page always shows a meaningful number.
JSON API: /index/api