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
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.
Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.
One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.
Petawawa River at Petawawa Water Level
Live river level, flow, historical records and forecast for Petawawa River at Petawawa in Ontario, ON, Canada, built from official government gauge data.
- Location Ontario, ON, Canada
- Watershed petawawa
- Primary gauge 02KB001 (Water Survey of Canada)
About Petawawa River at Petawawa
Petawawa River - a key hydrological artery in Ontario.
Located in Ontario, the Petawawa River plays an important role in the surrounding landscape. This river, with a catchment area of roughly 4,127 square kilometres draining above the Petawawa gauge, captures the essence of the natural rhythms of the region’s hydrology, characterized by snowmelt-driven flows.
The watershed context
The Petawawa watershed is integral to the region, largely shaped by snowmelt that drives spring freshet flows from late April into May. During the summer months (July to September), the river experiences natural drawdown due to evaporation and reduced inflows. As winter approaches, the river's flow begins to decline early as ice forms, providing a dynamic calendar of seasonal water changes that are crucial for the local ecosystem.
Why the data matters here
Hydrological data from the Petawawa River, monitored by the Water Survey of Canada, is vital for understanding water levels and flow patterns. Today's measurement allows cottagers, anglers, and local residents to appreciate current conditions relative to historical trends. By comparing today's reading against the median for this calendar day over more than 50 years, users gain a clearer insight into how the river is behaving in the context of its seasonal patterns, which is more informative than simply looking at raw elevation figures.
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
