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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.

Assiniboine River Southwest of St. Lazare Water Level

Live water level, flow, historical records and forecast for Assiniboine River Southwest of St. Lazare in Canada, MB, Canada, built from official government gauge data.

About Assiniboine River Southwest of St. Lazare

Assiniboine River Southwest of St. Lazare - A Vital Conduit in the Upper Assiniboine Watershed.

The Assiniboine River, flowing southwest of St. Lazare in Manitoba, plays a critical role in the local hydrology and ecology. This segment of the river traverses a drainage area of roughly 71,200 square kilometres, acting as a vital waterway within the Upper Assiniboine - Birdtail watershed. It serves not only as a habitat for various species but also a significant resource for the communities and ecosystems aligned with its banks.

The watershed context

This stretch of the Assiniboine River connects to several key peers in its vicinity, including the Assiniboine River near Miniota and the Assiniboine River near Russell. The river is shaped by the seasonal rhythms typical of the prairie region. In spring, the melting snow often leads to floods, marking a crucial period for the river and the surrounding landscape. As summer progresses, the river experiences a natural recession, which is characterized by lower water levels as evaporation and reduced inflow commence.

Why the data matters here

Monitoring the Assiniboine River provides important insights for local stakeholders — from agricultural producers to residents concerned with water management. Today's recorded measurement is significant as it reflects how the river's current state compares against historical levels on this date. Over the last 14 years, the Water Survey of Canada has provided valuable data from this gauge, helping inform water management practices. This comparison not only highlights variations due to seasonal changes but also aids in understanding long-term trends impacting the region’s ecology and human activity.

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