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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.

Sharbot Lake Water Level

Live lake level, flow, historical records and forecast for Sharbot Lake in Frontenac, ON, Canada, built from official government gauge data.

About Sharbot Lake

Sharbot Lake - a focal point of the Central Ottawa - Mississippi watershed.

Sharbot Lake, located in Frontenac County, is a significant and refreshing natural water body within the broader Central Ottawa - Mississippi watershed. This lakeside locale brings together the functions of a recreational hotspot and an important ecological resource. Draining roughly 139 square kilometres above the outlet, Sharbot Lake serves as a critical link in the regional hydrological system, providing habitat and supporting local ecosystems while also attracting cottagers and anglers alike.

The watershed context

Sharbot Lake acts as a vital connector within its watershed, surrounded by peers such as Bennett Lake and Dalhousie Lake. The waters here are shaped by the seasonal hydrology characteristic of Ontario, with snowmelt driving the spring freshet that typically occurs from late April through May. This seasonal cycle ensures that the lake experiences periodic replenishment, an essential factor in maintaining its health and vitality. During the summer months, natural drawdown takes place from July to September, contributing to the lake's characteristic seasonal ebb and flow. As colder temperatures arrive, early winter decline occurs as ice begins to form, further marking the rhythm of life here during the colder months.

Why the data matters here

Understanding the current conditions of Sharbot Lake is crucial for a wide range of local users, from cottagers managing boating and fishing activities to conservationists monitoring ecological health. The lake's hydrological data, provided by credible sources, offers a reliable measure of water elevation, which is essential for assessing both recreational potential and environmental health.

For instance, today’s reading is crucial for user planning and environmental assessments. The most current measurement against the historical median for this calendar day reveals patterns that can guide lake management and the recreational use of this natural resource. This information is collected and shared by the Water Survey of Canada, which has kept records at this station for over 23 years, providing insights that are invaluable for navigating the seasonal shifts and annual cycles of Sharbot Lake.

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