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Nibi Metrics

Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.

Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.

Water Stories

The flood of record that was overtaken

For five years, spring 2019 was the mark every Lake Muskoka decision answered to. In April 2026 the lake went two centimeters higher - and the official books have not caught up yet.

Why the Assiniboine floods every spring

Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.

How snowpack becomes summer water

The science of snow water equivalent and why it drives the season ahead.

Reading a staff gauge like a hydrologist

What the numbers on the measuring stick actually tell you.

Flash Flood Alley: how Texas rivers rise in hours

Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.

What a "100-year flood" actually means

One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.

Kenogamisis Lake Water Level

Live lake level, flow, historical records and forecast for Kenogamisis Lake in Thunder Bay, ON, Canada, built from official government gauge data.

About Kenogamisis Lake

Kenogamisis Lake - A natural reservoir in Northwestern Ontario.

Kenogamisis Lake, located in the picturesque region of Thunder Bay, Ontario, is a significant water body that plays an important role in the local ecosystem and the Upper Kenogami watershed. This lake serves as a vital reservoir and is supported by a substantial drainage area of approximately 1,036 square kilometres upstream of the gauging station.

The watershed context

The Upper Kenogami watershed, where Kenogamisis Lake lies, is characterized by its snowmelt-driven seasonal hydrology. Typically, the spring freshet occurs in late April to May, providing an influx of water as the snow melts. Following this, natural drawdown is expected from July to September as evaporation rates increase during the warmer months. As winter approaches, the water levels begin to decline early in the season, influenced by the formation of ice. This seasonal cycle is crucial for maintaining the health and balance of the local ecosystem, providing necessary hydrological support to various flora and fauna.

Why the data matters here

Currently, the lake's hydrological data is monitored by the Water Survey of Canada. Today's reading at Kenogamisis Lake near Geraldton is crucial because it gives insight into how current water levels compare to the median for this calendar day over the last 20 years. This comparison is significant, as it allows for detecting trends that could indicate changes in local hydrology, be it from seasonal variations or broader ecological shifts. Evaluating the lake's levels against historical norms is a useful gauge for understanding current conditions and planning for potential impacts on both the environment and the local community.

How this page is built

Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.

How Nibi Metrics works · Water stories