Lockhart River at Outlet of Artillery Lake Water Level
Live river level, flow, historical records and forecast for Lockhart River at Outlet of Artillery Lake in NT, Canada, built from official government gauge data.
- Location NT, Canada
- Watershed lower lockhart
- Primary gauge 07RD001 (Water Survey of Canada)
About Lockhart River at Outlet of Artillery Lake
Lockhart River in the Lower Lockhart watershed, Northwest Territories.
Season by season
September is the usual high-water month here, with a typical level of 1.88 m (6.16 ft). May is the usual low-water month, at 1.47 m (4.81 ft). That gap is 41.4 cm (16.3 in) over the year, which is a practical range for docks, shore access, and any intake set close to the surface.
For this part of the North, the year is usually set by spring breakup and snowmelt, then a shorter summer season, then long winter low flows under ice. On the ground, that means the water can change quickly in spring, then settle into a much lower band later on. If you use the river for boating or a pump intake, the seasonal swing is the number to keep in mind.
Records and rises
The record high is 2.91 m (9.53 ft), set in September 2021. The record low is 1.08 m (3.55 ft), set in May 2024. Those two marks show that the river can move across a wide range even without looking far back in time.
The record low sitting in May matches the usual seasonal low month, while the record high came in the usual seasonal high month. That is useful for people watching banks, moorings, and shallow crossings: the same reach can be near its lower range in spring and much higher later in the season.
No fastest 24-hour rise is listed here, so I will not guess at warning time from this station.
Reading the hero number
The hero number on this page is meant to be read against the median for the same calendar day, not as a raw height on its own. That comparison tells you whether today is running above or below the station’s normal level for this date.
That is more useful than elevation alone because river level only matters in context: a reading can be ordinary for one day of the year and high for another. This station has more than 80 years on record, so the day-of-year median is a better guide to what is typical here than a single number by itself.
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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Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
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
