WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for La Martre River below Outlet of Lac la Martre in NT, Canada, built from official government gauge data.
La Martre River below Outlet of Lac la Martre is in the La Martre watershed in Northwest Territories.
The station has more than 50 years on record.
The highest level in the file is 5.24 m (17.19 ft), reached in November 2021. The lowest is 3.61 m (11.83 ft), reached in November 2024. That range matters if you use the river for access, crossing, or intake placement: the record says this reach can move from a much higher to a much lower stage.
Seasonally, the river is typically highest in April at 4.36 m (14.29 ft) and lowest in October at 4.04 m (13.26 ft). The typical annual swing is 31.3 cm (12.3 in). For a dock, ramp, or shallow intake, that is the usual band to plan around, separate from the bigger extremes in the record.
No fastest 24-hour rise is listed in the facts, so I will not guess at warning time from this station.
The gauge drains 14,250 km2 (5,502 sq mi) upstream of the station. That is the area feeding this point, not the full watershed by name. In a subarctic setting, the record follows a pattern that matters for neighbours: spring breakup and snowmelt dominate, winter brings low flows under ice, and summer can move quickly when runoff is brief and intense. Read the stage here with that seasonal rhythm in mind, especially if you travel by boat or depend on a bank-side pump.
The hero number on this page is most useful when set against the median for this calendar day, not just the raw elevation. A level can look high or low on its own and still be normal for the date; the median shows whether today sits above or below the usual day-to-day pattern for this station.
For this site, Water Survey of Canada is the operating agency behind the record. With more than 50 years on record, the daily median gives a better read on what the river is doing now than elevation alone.
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.
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.
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.
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.
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.
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.
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.
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