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.
Cobourg Brook at Cobourg Water Level
Live river level, flow, historical records and forecast for Cobourg Brook at Cobourg in Canada, ON, Canada, built from official government gauge data.
- Location Canada, ON, Canada
- Watershed ganaraska
- Primary gauge 02HD019 (Water Survey of Canada)
About Cobourg Brook at Cobourg
Cobourg Brook - A vital tributary of the Ganaraska watershed.
Cobourg Brook flows gracefully through its namesake town in Ontario, contributing to the vibrant Ganaraska watershed. This river is an important part of the local ecology, serving as a natural corridor for wildlife and capturing the seasonal rhythms of the region.
The watershed context
The brook drains approximately 123 square kilometres, moving through a landscape that supports diverse habitats and communities. As it winds its way down from the surrounding area, Cobourg Brook plays a crucial role in the hydrology of the Ganaraska watershed. Nearby peers include Baltimore Creek, Bowmanville Creek, and Proctors Creek, all sharing similar hydrological dynamics.
Snowmelt fuels the seasonal hydrology of Cobourg Brook, leading to significant streamflow during the late spring freshet from April to May. This seasonal top-up is a key feature of the region's water cycle, after which natural summer drawdown occurs from July to September. During early winter, water levels gradually decline as ice begins to form, marking another distinct phase in the brook's annual rhythm.
Why the data matters here
Monitoring the flow of Cobourg Brook allows local residents and authorities to anticipate and respond to seasonal changes. The current data, provided by the Water Survey of Canada, enabling the comparison of today's reading to the historical median for this date over a span of 23 years. This context helps in understanding the river's status beyond just raw elevation figures, providing insights into potential flood risks or drought conditions impacting the brook and surrounding regions.
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
