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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.

Fraser River at Shelley Water Level

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

About Fraser River at Shelley

Fraser River - A dynamic river shaped by mountain hydrology.

Flowing gracefully through British Columbia’s scenic landscapes, the Fraser River at Shelley is a significant reach of one of Canada’s most important river systems. Draining roughly 32,400 square kilometres above the station, this stretch of the Fraser serves as a lifeline for local communities and ecosystems alike.

The watershed context

The Fraser River basin is a tapestry of diverse ecosystems, shaped by the powerful influences of seasonal snowmelt and glacier-fed runoff. In the Upper Fraser - Baker watershed, which includes Shelley, spring freshet typically begins in May and can last into July, as melting snowpack swells the waters. This region exemplifies mountain hydrology, producing impressive flow rates that can fluctuate significantly as temperatures rise and precipitation patterns shift. The Fraser River at Shelley shares its waters with notable peers, including the Fraser River at South Fort George, adding to the interconnected nature of this watershed.

Why the data matters here

Monitoring the Fraser River's flow is essential for various stakeholders, including anglers, farmers, and flood-watchers. The gauge not only measures the water level but also provides crucial discharge data, reflecting the river's health and ecosystem dynamics. Today's reading is compared against the median for this calendar day across the station's historical record, which spans more than 14 years. This comparison offers a more comprehensive understanding of current conditions, as it helps to contextualize how today's water level stands against typical seasonal patterns. The Water Survey of Canada oversees this station, ensuring reliable data for those who depend on the Fraser River's rhythms and flows.

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