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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.

Nottawasaga River near Baxter Water Level

Live river level, flow, historical records and forecast for Nottawasaga River near Baxter in Canada, ON, Canada, built from official government gauge data.

About Nottawasaga River near Baxter

Nottawasaga River - A vital waterway in the heart of Ontario.

The Nottawasaga River near Baxter flows through a diverse landscape, known for its significance to both ecological systems and local communities. This river is a key feature of the Nottawasaga watershed, encompassing a substantial catchment area of approximately 1230 square kilometres. It interacts with a network of nearby rivers, including the Boyne River at Earl Rowe Park and the Coldwater River at Coldwater, forming a vibrant community of waterways that support numerous recreational and ecological activities.

The watershed context

Encompassing a broad region, the Nottawasaga River is influenced by snowmelt-driven seasonal hydrology typical of Southern Ontario. In late April to May, snowmelt contributes to a robust spring freshet, a vital time for the river's ecology and for those who rely on it for fishing and other water-based activities. As summer approaches, the river naturally experiences a drawdown from evaporation and decreased inflow, a normal cycle continuing through July to September. This seasonal rhythm is an integral part of the Nottawasaga River's character, marking important changes in water levels.

Why the data matters here

With 49 years of historical records, the water level readings from the Nottawasaga River near Baxter provide invaluable insights into both current conditions and long-term trends. This following data assists cottagers, anglers, and flood-watchers in making informed decisions. Today's water level reading can be compared against the median for this calendar day based on the water station's historical record maintained by the Water Survey of Canada. These metrics are essential for understanding seasonal patterns and for preparing for any fluctuations that might arise throughout the year.

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