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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.

Boyne River at Earl Rowe Park Water Level

Live river level, flow, historical records and forecast for Boyne River at Earl Rowe Park in Canada, ON, Canada, built from official government gauge data.

About Boyne River at Earl Rowe Park

Boyne River - a dynamic watercourse in Ontario.

Flowing through the picturesque Earl Rowe Park, the Boyne River serves as a vital waterway within the Nottawasaga watershed in Ontario. Draining approximately 218 square kilometres above the station, the river is a key feature of the local landscape and plays an important role in supporting regional ecology and recreational activities.

The watershed context

The Nottawasaga watershed encompasses a broad network of streams and rivers, with the Boyne River contributing to the hydrological richness of the area. This river is joined by several notable peers, including the Coldwater River, Hogg Creek, and Mad River, each adding to the ecological and recreational fabric of the region. The hydrology is heavily influenced by the seasonal patterns typical of Ontario, marked by snowmelt-driven flows during spring, a natural drawdown in summer, and a typical decline in early winter as ice begins to form.

Why the data matters here

Reliable data from the Boyne River at Earl Rowe Park, recorded by the Water Survey of Canada, allows for ongoing monitoring of water levels and flow rates. This information is crucial for various users, including cottagers, farmers, and conservationists, as it helps them understand and manage their activities in relation to the river's dynamics. Today's measurement is effectively compared against the median for this calendar day over the past 49 years, providing a contextual understanding of current conditions. This approach to data reporting is essential, as it allows for insights into trends and fluctuations beyond just raw elevation figures.

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