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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.

Black River near Washago Water Level

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

About Black River near Washago

Black River - A vital watercourse near Washago.

The Black River flows gracefully through the heart of Ontario, contributing to the intricate hydrology of the Black River - Lake Simcoe watershed. This river plays a crucial role in the local ecology and serves as a vital resource for nearby communities.

The watershed context

Draining roughly 1,510 square kilometres above the station, the Black River nourishes a diverse range of habitats that support local wildlife. It connects with several peers in the region, such as the Beaver River near Beaverton and the Holland River East at Holland Landing. This interconnectedness highlights the importance of holistic watershed management as it relates to water quality and ecosystem health in this area.

The regional hydrology reflects a snowmelt-driven seasonal rhythm, leading to a spring freshet typically occurring in late April and May. During this period, snowfall from the winter melts steadily, causing water levels in the river to rise. From July to September, natural drawdown takes over as evaporation and decreased inflows begin to reduce the river's levels. As winter sets in, ice forms, marking the early-winter decline in flow.

Why the data matters here

Data from the Black River near Washago is crucial for monitoring trends in water levels and flow, helping to inform local residents, farmers, and conservationists. The monitoring station, operational for over 50 years, provides vital information about daily changes in water elevation.

Today's reading can be compared against the median for this date across the station's historical record managed by Water Survey of Canada. This comparison is more valuable than a simple measurement of elevation, as it helps contextualize current water levels within the river's seasonal behavior and historical patterns. Observing these shifts can guide decisions about water management and ecological preservation in the Black River watershed.

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