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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Mackenzie River at Fort Simpson Water Level
Live river level, flow, historical records and forecast for Mackenzie River at Fort Simpson in Canada, NT, Canada, built from official government gauge data.
- Location Canada, NT, Canada
- Watershed upper mackenzie martin
- Primary gauge 10GC001 (Water Survey of Canada)
About Mackenzie River at Fort Simpson
Mackenzie River - A vital lifeline for the North.
The Mackenzie River at Fort Simpson flows through the heart of the Northwest Territories, serving as a crucial artery for both the natural environment and human activity. Towering over the diverse ecosystems that surround it, this river plays a significant role in the regional hydrology, particularly in the dynamic interplay of seasonal shifts typical of a subarctic landscape.
The watershed context
The Mackenzie River, known for its vast drainage area of approximately 1,300,000 square kilometres above the Fort Simpson station, weaves through a rich network of waterways. Notable peers include the Martin River, which further enriches the hydrological complexity of this expansive region. The Upper Mackenzie - Martin watershed is characterized by its spring breakup and snowmelt dominance, leading to rapid fluctuations in water levels. Ice-jam flooding can occur, particularly in the spring, when warmer temperatures initiate melt, causing ice to break free and potentially block the flow of water.
During the long winter months, flows are typically low and subdued under the ice, while short, intense summers bring periods of increased activity, vital for aquatic ecosystems and human livelihoods.
Why the data matters here
Monitoring the Mackenzie River at Fort Simpson is essential for understanding not only the river's health but also the broader environmental patterns in this northern landscape. Today's river reading compared to the median for this calendar day—derived from 49 years of historical data collected by the Water Survey of Canada—provides crucial insights. This nuanced comparison offers a clearer picture than raw elevation figures alone, highlighting the river's performance relative to historical norms and aiding in regional flood and resource management efforts.
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
