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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.

Southwest Miramichi River at Blackville Water Level

Live river level, flow, historical records and forecast for Southwest Miramichi River at Blackville in Canada, NB, Canada, built from official government gauge data.

About Southwest Miramichi River at Blackville

Southwest Miramichi River - A key flow of New Brunswick.

The Southwest Miramichi River at Blackville is a vital watercourse in New Brunswick, known for its significance to local ecosystems and communities. This section of the river serves as a critical connector within the greater Miramichi watershed. With a catchment area of approximately 5,130 square kilometres draining upstream, it plays a considerable role in the region's hydrology.

The watershed context

The landscape surrounding Blackville features a diverse mix of habitats, including forests and wetlands, which contribute to the river's ecological health. The Miramichi watershed is known for its seasonal variations influenced by Atlantic hydrology. In spring, melting snow leads to freshets, and there is an increased risk of ice jams on the major rivers. As temperatures drop in winter, ice cover can form, which is a natural part of the river's cycle. The conditions during these key seasons impact water levels, flow, and aquatic life, making the data collected at this gauge particularly valuable for understanding local hydrological patterns.

Why the data matters here

Current data from the Southwest Miramichi River at Blackville is essential for monitoring river flow and understanding trends in water levels. Today's reading can be compared against the median for this date across the station's 14-year historical record to provide valuable context. This method allows residents, anglers, and those concerned about flooding to better assess current conditions against historical trends, making it a more effective means of measuring river health compared to raw elevation figures alone. The Water Survey of Canada operates this station, ensuring that crucial data is available to those who depend on the river's resources.

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