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
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.
Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.
One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.
Saint-laurent (fleuve) A Coteau-du-lac Water Level
Live river level, flow, historical records and forecast for Saint-laurent (fleuve) A Coteau-du-lac in Canada, QC, Canada, built from official government gauge data.
- Location Canada, QC, Canada
- Watershed st lawrence river
- Primary gauge 02MC017 (Water Survey of Canada)
About Saint-laurent (fleuve) A Coteau-du-lac
Saint-Laurent (Fleuve) à Coteau-du-Lac - A vital part of the St. Lawrence River system.
Saint-Laurent (Fleuve) à Coteau-du-Lac gently flows through the heart of Quebec, embodying the striking characteristics of one of North America's most significant river systems. With a catchment area of approximately 801,000 square kilometres, this stretch of the St. Lawrence River plays a crucial role in its watershed. As a premier waterway, it is not only vital for the ecological balance but also serves as a lifeline for communities and ecosystems nurtured by its waters.
Why the data matters here
The available data for this gauge offers insights into the river's behavior over the years, with recordings spanning more than 21 years. Today’s reading provides essential information about the river's current state compared to the historical norms. This context is particularly relevant during the spring freshet, typically characterized by the rapid rise in water levels due to snowmelt. Such seasonal dynamics can influence local habitats, flood risks, and socio-economic activities. Tracking this information allows locals, including cottagers, anglers, and monitoring agencies, to make informed decisions regarding water management and safety.
Understanding today's measurements against the median for this calendar day provides a more precise indication of the river's status. The Water Survey of Canada (WSC) uses this median comparison as a more reliable measure than absolute elevation alone, helping users assess whether the river is experiencing typical fluctuations, heightened levels, or potential concerns. In this way, the vital data collected by WSC offers everyone connected to the Saint-Laurent (Fleuve) à Coteau-du-Lac the means to navigate its rhythms throughout the seasons effectively.
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
