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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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.
Speed River below Guelph Water Level
Live river level, flow, historical records and forecast for Speed River below Guelph in Canada, ON, Canada, built from official government gauge data.
- Location Canada, ON, Canada
- Watershed upper grand
- Primary gauge 02GA015 (Water Survey of Canada)
About Speed River below Guelph
Speed River - a vital waterway flowing through Guelph.
The Speed River below Guelph serves as an essential segment of the Upper Grand watershed. This river, measuring a catchment area of approximately 565 square kilometres above the station, showcases the dynamic interplay of hydrology in the region. Nestled within Ontario, the river connects with several peers, including Blue Springs Creek and the renowned Grand River.
The watershed context
The Upper Grand watershed is characterized by its seasonal rhythms, predominantly driven by snowmelt. As spring approaches, the late April to May period heralds a freshet marked by runoff from melting snowpack, significantly influencing water levels. During the warmer months, from July to September, the river experiences natural drawdown due to evaporation and reduced inflows. As winter sets in, the river sees an early decline as ice begins to form, marking another transition in its hydrological cycle.
Why the data matters here
It's crucial to keep an eye on the river's current status, as real-time data provides insights into water levels and potential impact on the surrounding ecosystem and communities. Today's measurement reflects the river's value as part of a wider network of waterways. Comparatively, current readings are compared against the median for this calendar day, based on over 50 years of historical data from Water Survey of Canada. This context allows for a clear understanding of how today's levels measure up, providing critical information for local cottagers, anglers, and flood-watchers.
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
