Valley River above Gilbert Plains Dam Water Level
Live river level, flow, historical records and forecast for Valley River above Gilbert Plains Dam in MB, Canada, built from official government gauge data.
- Location MB, Canada
- Watershed mossy
- Primary gauge 05LJ812 (Water Survey of Canada)
About Valley River above Gilbert Plains Dam
The Valley River above Gilbert Plains Dam is a gauged river in the Mossy watershed in Manitoba.
The watershed
This station drains 2100 km2 (811 sq mi) upstream of the gauge, so what happens here reflects runoff from a sizeable area before the river reaches the dam site. For local users, that upstream area is what sets the stage for higher water after snowmelt and for slower water later in the season.
The record at this site runs for more than 32 years. Over that span, the river has shown a high of 381.87 m (1252.85 ft) in September 2012 and a low of 378.72 m (1242.52 ft) in October 2014. Those are the outer edges of what the station has seen, and they matter if you are watching for the range the water can reach over a working season.
What the numbers say
The seasonal pattern is clear. The highest typical month is February at 380.9 m (1249.66 ft), while the lowest typical month is April at 380.42 m (1248.1 ft). The typical annual swing is 47.4 cm (18.7 in). For a dock, intake, or shoreline setup, that is the routine change to plan around, even before a year turns unusual.
The river can also move quickly. Its fastest 24-hour rise was 1.19 m (3.9 ft) in May 1988, and its fastest 24-hour drop was 93.8 cm (3.1 ft) in September 2003. Those are short-notice changes, the kind that can affect bank access and water levels from one day to the next.
Reading the hero number
The number on the page compares today’s reading with the median for this calendar day across the station record, which is more useful than raw elevation alone because it puts the river in its usual seasonal context. A reading above that median means the river is running higher than it normally does for this date at this station; a reading below it means the opposite. Water Survey of Canada maintains the record behind this gauge, and the comparison is strongest here because the station has been building that day-by-day history for more than 32 years.
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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How every number is computed - About the platform
