South Macmillan River at Kilometre 407 Canol Road Water Level
Live river level, flow, historical records and forecast for South Macmillan River at Kilometre 407 Canol Road in YT, Canada, built from official government gauge data.
- Location YT, Canada
- Watershed macmillan
- Primary gauge 09BB001 (Water Survey of Canada)
About South Macmillan River at Kilometre 407 Canol Road
What the record shows
South Macmillan River in the Macmillan watershed, Yukon.
The station record spans more than 50 years. The highest level in that record was 3.92 m (12.87 ft) in May 2023, and the lowest was 1.31 m (4.3 ft) in October 2018. For people using the river, that is the range the channel has already shown it can cover.
The seasonal pattern is fairly clear in the record. The typical high point is in June at 2.04 m (6.7 ft), and the typical low point is in October at 1.56 m (5.11 ft). The typical annual swing is 48.3 cm (19 in). That is the spread a dock, intake, or landing has to live with from one part of the year to another.
The watershed
The gauge drains 983 km2 (379 sq mi) upstream of this station. That is the contributing area for the readings here, not the whole Macmillan watershed.
In this part of Yukon, the seasonal rhythm usually matters more than any single day. The record here shows a June high and an October low, which fits a waterway that can change shape through the open-water season and then settle lower later in the year. For anglers and cottagers, that means the usable edge of the river can shift through summer and into fall. For anyone with a crossing, intake, or bank setup, the annual swing is the number to keep in mind.
Reading the hero number
The hero number on this page compares today’s stage with the median for this calendar day across the station record. That is more useful than raw elevation because the same level can mean different things in June than it does in October.
This station’s record covers more than 50 years, so the day-by-day median is built from a long local history. When you are checking whether the river is running high or low for this date, that median is the better benchmark.
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.
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How every number is computed - About the platform
