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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

The flood of record that was overtaken

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.

Why the Assiniboine floods every spring

Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.

How snowpack becomes summer water

The science of snow water equivalent and why it drives the season ahead.

Reading a staff gauge like a hydrologist

What the numbers on the measuring stick actually tell you.

Flash Flood Alley: how Texas rivers rise in hours

Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.

What a "100-year flood" actually means

One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.

Southern Indian Lake Water Level

Live lake level, flow, historical records and forecast for Southern Indian Lake in Canada, MB, Canada, built from official government gauge data.

About Southern Indian Lake

Southern Indian Lake - A remote waterbody in Manitoba.

Southern Indian Lake is a notable lake located in the heart of Manitoba, Canada. This expansive lake covers a substantial area, offering a natural environment that supports local wildlife and serves as a critical resource for local communities. While there are no direct neighbors listed in the metadata, its isolation does not diminish its significance within the region.

The watershed context

The lake is situated within the Southern Indian Lake watershed, which drains approximately 259,000 square kilometers above the station. This vast drainage area highlights the importance of the lake for managing water resources in the region. The subarctic climate of Manitoba contributes to a hydrology marked by significant spring snowmelt floods, particularly in the surrounding basin areas. This event shapes both the water levels and ecological dynamics as the lake experiences contrasting seasonal flows. During the summer months, the natural tendency is for a gradual recession of water levels, driven by evaporation and reduced inflow.

Why the data matters here

Monitoring water levels at Southern Indian Lake is crucial for understanding the dynamics of the lake and its watershed. Today's measurement can provide insight into local and seasonal variations that have occurred over more than 15 years of data collection. Comparing the current water level against the median for this calendar day enhances our understanding of fluctuations in water trends, offering valuable information to residents, anglers, and environmental managers alike. This data is sourced from the Water Survey of Canada, ensuring reliable insights into the lake’s hydrology and supporting local decisions regarding this vital resource.

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