Jezioro Pomocnia · 52.5431°N 20.6762°E · 9.0 ha

Nobody knows what the fish will do.

Fishlog writes its guess down anyway, before you leave the house, and then keeps the receipt. Every prediction is stamped, versioned, and never rewritten.

Mean depth 2.8 m 339 m across Season Apr to Oct

Prediction not yet written

no reading taken
no ruleset applied
no band assigned

inputs_hash — sealed —

What the water is actually doing.

Recorded reading · 28 Aug 2026 08:00 CEST

Pressure 1000hPa falling 3.0 hPa / 6 h

Wind 0.0m/s from the south east

Air 0°C high 23° low 9° yesterday

Water modelled no thermometer in this lake. The model carries a 27 member band and the app says so everywhere it is used.

Law 4 If a weather fetch fails, Fishlog writes nothing and logs the gap. It does not carry the last value forward, and it never substitutes a forecast for a measurement. A missing hour stays missing.

You have no reason to believe any of this.

Neither does Fishlog. It has never been checked against a single one of your catches, and it says that on the page instead of hiding it behind a percentage. So it does the one thing that makes the claim checkable later: it commits, in writing, before the session, and it never edits the record afterwards.

A dense stand of reed at a lake margin, with a narrow gap of pale water visible through it. — Plate 1 · reed margin, Jezioro Pomocnia

It writes the guess down in front of you.

Prediction immutable row

waterJezioro Pomocnia

target date2026-08-28

pressure1022 hPa, falling 3.0 / 6h

windSE 5.4 m/s

air17 °C

ruleset_versionv0.4

inputs_hashcomputing

day band assigning

A colour, never a score. Fishlog will not print "7.4 out of 10" because it has nothing to justify the decimal. The band is what the engine can honestly produce.

sealed

Scroll back up. It does not come off.

Okreg Mazowiecki · 2024 register

What anglers actually recorded.

Kilogrammes per angler per day, from returned catch cards. Every figure carries the number of anglers it came from, because that is the part that decides whether it means anything.

Zbiornik Talar 7.15kg/day n = 43 anglers

Staw Krzywie 6.24kg/day n = 48 anglers

Glinianki Golkow 3.35kg/day n = 90 anglers

Jezioro Pomocnia 0.71kg/day n = 23 anglers · carp 39.6%

Obwod rybacki Narew Nr 7 0.65kg/day n = 1162 anglers

Obwod rybacki Wisla Nr 3 0.42kg/day n = 593 anglers

Wind ripple crossing an otherwise still lake surface, seen from directly above.

The seam where wind-driven ripple meets sheltered still water.

Law 5 Talar's 7.15 came from 43 anglers. Narew Nr 7's 0.65 came from 1162. A big number with a small n is not a better water, it is a smaller sample. Fishlog never renders a figure without the n beside it.

See today on your water.

Name a lake, a river district or a canal. Fishlog builds it: outline, grid, weather series, and a prediction written before you go.

Fishlog · one lake, 9 ha, and a notebook that counts blanks Figures: Okreg Mazowiecki 2024 catch register