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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.

Bear River at St. Margarets Water Level

Live river level, flow, historical records and forecast for Bear River at St. Margarets in Canada, PE, Canada, built from official government gauge data.

About Bear River at St. Margarets

Bear River - A steady flow through Northeastern Prince Edward Island.

Bear River at St. Margarets is a vital watercourse offering insights into the hydrology of Northeastern Prince Edward Island. This river drains approximately 14.4 square kilometres, capturing rain and snowmelt runoff and contributing to local ecosystems. As a vital component in the region's water cycle, Bear River exemplifies the dynamics of Atlantic island hydrology, where both surface and groundwater influence stream levels.

The watershed context

The Bear River flows with the seasonal rhythms typical of Prince Edward Island. Rain and snowmelt drive its flow patterns, particularly noticeable during spring, when a short freshet can prompt increased water levels. The steadiness of Bear River is also supported by groundwater, which helps to maintain baseflow levels throughout the year. While its immediate catchment area is relatively small, Bear River plays an essential role in the surrounding landscape and the water needs of local flora and fauna.

Why the data matters here

Monitoring the Bear River is crucial for understanding both immediate local conditions and broader hydrological trends. The current data reflects today's reading compared to the median for this calendar day over the last 30 years, as reported by Water Survey of Canada (WSC). This comparison provides valuable context, helping cottagers, anglers, and land managers observe how current conditions align with historical averages. By focusing on median elevation rather than raw levels, we gain insights into potential flooding, water availability, and ecological health within the watershed.

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