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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.

Whitemans Creek near Mount Vernon Water Level

Live river level, flow, historical records and forecast for Whitemans Creek near Mount Vernon in Canada, ON, Canada, built from official government gauge data.

About Whitemans Creek near Mount Vernon

Whitemans Creek - A vital lifeline near Mount Vernon.

Whitemans Creek flows gently through Ontario's Lower Grand watershed, serving as an important tributary to the region. With a drainage area of approximately 387 square kilometres, this creek collects water from a landscape marked by its agricultural and rural characteristics. Several other streams, such as Fairchild Creek and Grand River, share this basin, enriching the hydrologic tapestry of the area.

The watershed context

Nestled within the Lower Grand watershed, Whitemans Creek experiences the typical seasonal rhythms of Southern Ontario, marked by a snowmelt-driven hydrology. The spring freshet, occurring from late April to May, is a critical period as melting snow contributes to elevated water levels. This surge is followed by a natural drawdown during the summer months of July through September, when evaporation and reduced inflow cause the creek to recede. As winter approaches, the creek sees an early decline upon the formation of ice, reflecting the region's cold climate.

Why the data matters here

Understanding the water level measurements at Whitemans Creek is crucial for various stakeholders, from local farmers to recreational users. Today's reading is instrumental for anyone monitoring regional water patterns, as it allows for comparisons against the median for this date over the last 50 years. This context offered by the Water Survey of Canada underscores the importance of maintaining awareness of fluctuations in water levels, which can significantly impact agriculture, fishing, and local ecosystems.

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