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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.

Canal de Juana Diaz at BO. Penuelas near Salinas Water Level

Live river level, flow, historical records and forecast for Canal de Juana Diaz at BO. Penuelas near Salinas in PR, United States, built from official government gauge data.

About Canal de Juana Diaz at BO. Penuelas near Salinas

Canal de Juana Diaz - A vital waterway in Southern Puerto Rico.

The Canal de Juana Diaz flows gracefully near Salinas, Puerto Rico, embodying the tropical island's character as a rainfall-driven channel. As part of the vibrant Southern Puerto Rico watershed, this canal connects with several neighboring waterways, including the Canal de Juana Diaz at Lago Guayabal and the Canal de Patillas, reinforcing its role in regional hydrology.

The watershed context

The Canal de Juana Diaz is an important element of the Southern Puerto Rico watershed, which channels rainfall through its vibrant landscape. This region experiences heavy rainfall throughout the year, and with its tropical climate, the canal is primed for rapid fluctuations in water levels, particularly during hurricane events and tropical waves. The rush of water through this steep and short basin can lead to swift changes in conditions, posing challenges for both its natural ecosystem and those living near its banks.

Why the data matters here

At the gauge site of the Canal de Juana Diaz, the U.S. Geological Survey (USGS) provides data that allows for effective monitoring of river conditions. Understanding the water height and flow at this location helps gauge local conditions and informs users such as cottagers, anglers, and community flood-watchers. Today’s reading—considered alongside the median for this calendar day—offers valuable insight into current conditions compared to historic norms over the last 22 years. Monitoring these changes proves crucial in a region where flash floods can develop suddenly, making it essential for local residents and stakeholders to stay informed about the current state of the canal.

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