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.
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Raisin River at Black River Water Level
Live river level, flow, historical records and forecast for Raisin River at Black River in Canada, ON, Canada, built from official government gauge data.
- Location Canada, ON, Canada
- Watershed upper st lawrence raisin
- Primary gauge 02MC027 (Water Survey of Canada)
About Raisin River at Black River
Raisin River - A seasonal waterway shaped by snowmelt.
The Raisin River at Black River is a vital watercourse in Ontario's Upper St. Lawrence watershed, draining approximately 129 square kilometres above the gauge. This river plays an essential role in both the local ecology and the regional hydrology, especially as it responds to seasonal changes throughout the year.
The watershed context
In its journey, the Raisin River is accompanied by several peers, including the Garry River near Alexandria and the Raisin River near Williamstown, contributing to the rich hydrological tapestry of the area. The region experiences a snowmelt-driven seasonal hydrology, characterized by a pronounced spring freshet from late April to May. This period generally sees levels rising due to melting snow and increased runoff, which provide essential water resources for the surrounding environment.
As summer approaches, the river leads a natural drawdown in water levels from July to September. During this time, evaporation and reduced inflow contribute to the river's decline, impacting aquatic habitats and the broader ecosystem that relies on the river’s health. Likewise, as early winter arrives, the ice begins to form, further contributing to the seasonal rhythm of the Raisin River.
Why the data matters here
Monitoring the Raisin River at Black River provides valuable data for understanding water levels in relation to historical measurements. The current reading at this river can be compared against the median for this calendar day over the past 40 years, offering a clearer perspective on its seasonal behavior and trends. This approach, championed by the Water Survey of Canada (WSC), allows us to glean insights into whether the river is experiencing average conditions or deviating significantly from its historical patterns. By keeping track of these changes, users ranging from cottagers to farmers can better anticipate and adapt to the river's fluctuations over time.
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
