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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.

North Arm Fraser River at Vancouver Water Level

Live water level, flow, historical records and forecast for North Arm Fraser River at Vancouver in Canada, BC, Canada, built from official government gauge data.

About North Arm Fraser River at Vancouver

North Arm Fraser River - A vital conduit of the Lower Fraser.

The North Arm of the Fraser River at Vancouver serves as an essential waterway within the bustling Lower Fraser - Coast watershed. This river segment channels the confluence of various tributaries, making it a dynamic environment where urban life and natural processes intersect. The river plays a crucial role in the region’s hydrology, supporting both ecological health and local communities.

The watershed context

The North Arm Fraser River is part of the Lower Fraser - Coast watershed, surrounded by the intricate web of rivers that includes peers such as the Alouette River and Chilliwack River. The hydrology here is influenced by mountain systems, where snowpack-driven freshets typically peak between May and July. These seasonal patterns contribute to the river’s flow dynamics, affecting local ecosystems and human activity alike.

While the station itself does not measure discharge, its positioning along this vital waterway makes it significant for observing changes and trends within the local hydrological system. Even without detailed drainage area metrics provided for the station, the river's expansive flow aids in connecting the diverse landscapes and communities of the region.

Why the data matters here

Today's reading from the North Arm Fraser River at Vancouver reflects its current water level compared against the historical median for this date, tracked by the Water Survey of Canada. This comparison is more informative than raw elevation figures as it situates today’s flow within the context of seasonal norms and provides insight into the river's behavior over time. With over 7 years of collected data, it allows for meaningful interpretations regarding water levels, potential impacts from rainfall or snowmelt, and implications for both natural habitats and human usage.

Monitoring and understanding water levels in the North Arm Fraser River is essential for various stakeholders, including urban planners, ecologists, and recreational users. It provides clarity on how the river continues to function and adapt, ensuring it remains a vital component of life in and around Vancouver.

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