Rivière Mastigouche Water Level
Live river level, flow, historical records and forecast for Rivière Mastigouche in QC, Canada, built from official government gauge data.
- Location QC, Canada
- Watershed loup
- Primary gauge 052606 (Quebec CEHQ)
About Rivière Mastigouche
What the record shows
Rivière Mastigouche sits in the Loup watershed in Quebec.
The station record runs for more than 31 years. The highest level in the file is 30.86 m (101.25 ft) in May 2023, and the lowest is 29.27 m (96.03 ft) in January 1996. For anyone using the river, that spread is the part to watch: docks, bank access, and low crossings have to work across a range of water levels, not just a single reading.
The seasonal pattern is clear. The typical high point comes in April at 29.97 m (98.33 ft). The typical low point comes in September at 29.5 m (96.78 ft). The typical annual swing is 47 cm (18.5 in). That is a modest change on paper, but it is enough to matter for shoreline clearance, intake depth, and the amount of slack in a moored boat line.
The regional note fits the record: spring is the main rise period, and summer is the low-water season. This station does not show a fastest 24-hour rise in the facts provided, so I cannot add a warning-time figure here.
The watershed
The gauge drains 205 km2 (79.2 sq mi) upstream of the station. That is the land area feeding this site, not the full watershed name on the page.
For cottagers, anglers, and farm users, the number that matters is the area above the gauge because it shapes how quickly rain and meltwater reach this point. Larger upstream areas usually mean more water moving through the channel when conditions turn wet, but the record above is the part this station actually measures.
Reading the hero number
The hero number on this page is best read against the median for the same calendar day, not as a raw elevation. A single water level by itself tells you where the surface sits; the day-median shows whether it is high or low for this station’s own history.
This station is operated by CEHQ, and the record here covers more than 31 years. That length of record is what gives the day-median its value: it puts today’s reading in local context for this river, at this gauge.
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
Nibi Metrics - live water levels, flow, and forecasts for lakes and rivers across Canada, the US and the UK
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada, the US and the UK. Built on official government data.
Nibi Metrics tracks more than 13,000 gauged lakes and rivers across Canada, the United States and the United Kingdom, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, and the Environment Agency for England. Every number on the platform is measured, not modelled - taken from a government gauge on the water itself and compared against that location's own historical record for this exact date.
What you can see for any monitored lake or river
The level right now, in feet or metres, updated as the source agency publishes new readings - for many stations that is every five to fifteen minutes. How today compares to typical: every location carries its own typical-for-this-date band built from its historical record, so a reading is never just a number - it is above, below, or near what this water usually does on this calendar day. Which way it is moving: a measured RISING, FALLING, or STEADY verdict computed from the gauge's own recent readings, with the rate of change - the difference between a flood ending and one beginning. What comes next: level forecasts up to 72 hours ahead, driven by the gauge's recent behaviour, upstream water, and quantitative precipitation forecasts, alongside live radar, lightning, and weather for the surrounding region.
Alerts that watch the water for you
Set a threshold on any location - a level, a distance above typical, or a rate of climb - and Nibi emails or notifies you the moment the gauge crosses it. Cottagers use it for spring freshet, anglers for river conditions, marinas and municipalities for operations. The scanning runs around the clock against the same measured data shown on every page.
Where Nibi comes from
Nibi means water in Anishinaabemowin. The platform began at a family cottage on Lake Muskoka, Ontario, where the spring melt floods the shoreline most years and the only forecast was standing on the dock, looking, and guessing. It grew into an independent, member-funded platform run by Muskoka Research Inc. - no investors, no data resale, and a privacy policy shorter than most cookie banners. The core data is free for everyone, forever; paid plans add automation like multi-location alerts, deep history, and reports.
Coverage
Nibi spans the continent: every Canadian province and territory with active federal gauges - from Vancouver Island rivers to the Muskoka lakes, prairie reservoirs, and Quebec's hydrometric network - and the United States from Maine to the Texas Hill Country, the Ohio Valley, and the Pacific Northwest. Coverage grows where the water news is: when a basin floods, its gauges join the platform with their full historical records attached. Many stations report every five to fifteen minutes; most report at least hourly; every page states exactly when its gauge last spoke.
Free forever, funded by members
The core promise is simple: the water data is free, for everyone, forever. Live levels, maps, radar, and recent history never sit behind a paywall. Paid plans fund the platform by adding automation - multi-location alerts, decades of history, longer forecasts, and PDF reports - so the people who need more carry the cost for everyone who just needs to check the lake before driving up. There are no investors and no advertising deals shaping what the data says.
Water Stories
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The science of snow water equivalent and why it drives the season ahead.
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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.
How every number is computed - About the platform
