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Bay Foster Arm (Alberta) — a spot well known among anglers. About 3.7 km² in area. A coastal water: the bite here is modelled for the sea, not for a river or a lake. See when the bite is best: hourly fish activity for the days ahead, computed from the weather, pressure, and season.
Clear: 3–14 °C
The bite is strong — fish are active. Weather is steady, with no sharp swings — fish behave predictably.
Best time — 07:00–08:00 (dawn bite) and 20:00–22:00 (dusk bite).
Look for structure — reefs, flats, channel edges; work them slowly near the bottom. The water's cold — fish it more delicately and slowly.
The water's turning murky — go with bright, noisy lures: spinner or small crankbait. The water's cold — work the lure slower than usual.
Bring a warm jacket — it's noticeably colder on the water than on shore. Rain is expected — don't forget a rain jacket or a waterproof shell.
Worth going — it's a productive day.
The computed water temperature is around 6 °C — colder than the 6–17 °C comfort range for Brown trout: the fish conserves energy and takes more cautiously.
Brown trout works the twilight: the peaks are pinned to sunrise and sunset — their times are in the sun-and-moon card above.
Pressure is rising 10 hPa over the day — the bite usually settles down after a rise.
One more input — the moon's feeding windows: within their hours the score sits higher than across the rest of the day. The window times are in the “Solunar feeding periods” card below.
September is peak season for Brown trout here.
These are the same values the bite curve above was computed from. How the forecast works
Cloudy · feels like 0°
The day is 4 min shorter than yesterday.
Sunshine hours count direct sun only — cloud cover cuts it, so it is shorter than daylight.
The windows are set by the moon's transit and rise, and the forecast above already accounts for them: within these hours the bite score sits higher than across the rest of the day, while the day's overall level still comes from the catch-calibrated model.
What are solunar periods?