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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.

Pakwash Lakes Water Level

Live lake level, flow, historical records and forecast for Pakwash Lakes in Ontario, ON, Canada, built from official government gauge data.

About Pakwash Lakes

Pakwash Lakes - A serene expanse in the Chukuni watershed.

Nestled in Ontario's Chukuni watershed, Pakwash Lakes presents a significant ecological and hydrological feature within the region. As a substantial lake system, it is powered by seasonal snowmelt and feeds into the broader dynamics of local water bodies, although it is unique in its own right. This lake system plays a key role in the natural rhythm of the ecosystem that surrounds it.

The watershed context

Pakwash Lakes is part of a vast catchment area, draining approximately 8,062 square kilometers above the Pakwash Lake Below Snake Falls gauge. The lake's hydrology follows a seasonal pattern influenced by snowmelt, primarily peaking during the spring freshet from late April to May. The subsequent months often see a natural decline in water levels as summer approaches, typical of many lakes in Ontario. This pattern continues into early winter, when ice formation contributes to a further decline.

The Chukuni watershed encompasses a variety of aquatic habitats, influencing the region's biodiversity. In this ecosystem, Pakwash Lakes serves as a crucial resource for local wildlife, offering feeding and breeding grounds.

Why the data matters here

Understanding the water levels at Pakwash Lakes is vital for monitoring ecological health and managing local water resources. Today's reading provides context, allowing comparisons to the historical median for this calendar day from the station's 31 years of recorded data. Tracking these levels helps gauge the seasonal trends and their impact on plant and animal life, as well as informing cottagers, anglers, and others who rely on the lake.

This key data is sourced from Water Survey of Canada (WSC), ensuring that stakeholders have reliable information for making informed decisions based on the lake's hydrological status.

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