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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.

Harrison River at Harrison Mills Water Level

Live river level, flow, historical records and forecast for Harrison River at Harrison Mills in Canada, BC, Canada, built from official government gauge data.

About Harrison River at Harrison Mills

Harrison River - A vital waterway in British Columbia.

The Harrison River flows gracefully through the scenic landscape of British Columbia, serving as a critical artery within the Harrison watershed. With a substantial drainage area of roughly 8,430 square kilometres above the station, the river is fed by numerous tributaries and local mountain streams. This watercourse is important not only for its ecological significance but also for the communities and ecosystems it supports.

The watershed context

The Harrison River is part of the larger Harrison watershed, which encompasses diverse topographies, ranging from river valleys to mountainous terrains. Peers such as the Chehalis River and Fitzsimmons Creek highlight the interconnectedness of this hydrological network. The region is characterized by mountain hydrology, which sees significant fluctuations due to seasonal snowmelt, typically experiencing peak flows from May to July. This seasonal cycle plays a crucial role in sustaining the various habitats along the new flow of the river.

Why the data matters here

Today's reading from the Harrison River at Harrison Mills offers insight into current water levels in relation to historical metrics. Comparing today's elevation against the median for this calendar day across the 49 years of available data reveals the importance of understanding trends, variations, and the health of this river system. Monitoring these figures, through the diligent work of Water Survey of Canada, enhances the ability of local communities, anglers, and conservationists to assess the river's health and make informed decisions related to water management and environmental preservation.

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