Nibi Metrics
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.
Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.
Water Stories
For five years, spring 2019 was the mark every Lake Muskoka decision answered to. In April 2026 the lake went two centimeters higher - and the official books have not caught up yet.
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.
Lake of the Prairies Water Level
Live lake level, flow, historical records and forecast for Lake of the Prairies in Canada, MB, Canada, built from official government gauge data.
- Location Canada, MB, Canada
- Watershed upper assiniboine shell
- Primary gauge 05MD009 (Water Survey of Canada)
About Lake of the Prairies
Lake of the Prairies - a significant water body in the Upper Assiniboine - Shell Watershed.
Lake of the Prairies, situated in Manitoba, is a noteworthy lake that contributes to the hydrology of the Upper Assiniboine - Shell watershed. Formed by the damming of the Assiniboine River, this expansive water body plays a crucial role within the regional ecosystem and hydrological dynamics.
The watershed context
The Lake of the Prairies is fed by a drainage area of approximately 17,900 square kilometres, which captures water from the surrounding landscape and contributes to its hydrological profile. In this prairie landscape, spring snowmelt floods significantly influence the water levels, making this season the defining event for local hydrology. Following the spring, water levels typically experience a natural recession during the summer months due to evaporation and lower inflow. The lake also connects with several peers, including the Shell River at various points, highlighting the interconnected nature of the waterways in this area.
Why the data matters here
Monitoring the water level of Lake of the Prairies is essential for understanding both seasonal changes and long-term trends in the area. Today's reading from the Lake Of The Prairies Near Shellmouth station provides valuable insights when compared against the median for this calendar day across more than 50 years of historical data. This approach offers a clearer perspective than simply observing raw elevation figures, ensuring that local cottagers, anglers, and water resource managers can respond agilely to changing conditions. The current measurements are maintained by the Water Survey of Canada, underscoring the importance of accurate, ongoing hydrological monitoring in the region.
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
