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.
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Mattawa River below Bouillon Lake Water Level
Live river level, flow, historical records and forecast for Mattawa River below Bouillon Lake in Ontario, ON, Canada, built from official government gauge data.
- Location Ontario, ON, Canada
- Watershed upper ottawa kipawa
- Primary gauge 02JE020 (Water Survey of Canada)
About Mattawa River below Bouillon Lake
Mattawa River below Bouillon Lake - A dynamic watercourse shaped by seasonal rhythms.
The Mattawa River below Bouillon Lake carries the meltwaters of spring and the abundant rainfall of summer, flowing through the Upper Ottawa - Kipawa watershed. This river connects to a broader hydrological system, ultimately influencing water levels as it joins waters like Lake Timiskaming. With a drainage area of approximately 945 square kilometres upstream of the station, it plays a vital role in managing the water cycle for the surrounding ecosystem.
The watershed context
In Ontario, the seasonal hydrology is marked by a significant spring freshet, usually occurring from late April to May, driven by melting snow. As the temperature rises and the snowpack diminishes, the river swells with runoff. This is followed by a gradual drawdown during the warm months of July through September, as evaporation and lower inflows take effect, allowing the river to stabilize to its natural rhythm. As autumn approaches and ice begins to form, the river experiences a noted decline in water levels.
Why the data matters here
Monitoring data from the Mattawa River below Bouillon Lake, including both elevation and discharge, is crucial for understanding the river's behavior throughout the year. Today's water level reading aids local stakeholders, whether they are cottagers, anglers, or environmentalists, in assessing current conditions against the historical average. This river station has been providing data for over 49 years, which helps establish a clear baseline for measuring fluctuations. Today's reading can be compared to the median for this calendar day, a practice that provides context beyond the raw elevation. This deeper understanding is essential in safeguarding the river’s health and managing the surrounding environment effectively, managed by the Water Survey of Canada.
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
