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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 Paso Seco near Santa Isabel Water Level

Live river level, flow, historical records and forecast for Canal de Juana Diaz at Paso Seco near Santa Isabel in PR, United States, built from official government gauge data.

About Canal de Juana Diaz at Paso Seco near Santa Isabel

Canal de Juana Diaz - A vibrant artery of Southern Puerto Rico.

The Canal de Juana Diaz flows gracefully through the landscape near Santa Isabel, embodying the dynamic characteristics of Southern Puerto Rico's hydrology. This manmade canal, part of a network serving both agricultural and drainage needs, brings life to the surrounding area. With rainfall as its driving force, this region experiences rapid changes in water levels, a testament to the tropical climate's capacity for flash floods, particularly during hurricanes and tropical waves.

The watershed context

Draining into the Southern Puerto Rico watershed, the Canal de Juana Diaz acts as a crucial conduit for runoff rainwater, transforming into a powerful flow during heavy rain events. The watershed's steep basins rise quickly, allowing water to collect and travel with intensity, especially in those hours following a storm. Even when the rainfall subsides, the channels remain vital, helping to manage excess water and mitigate flooding in low-lying areas.

Around the Canal de Juana Diaz, several neighboring waterways contribute to the complex hydrological picture. The canal's peers include the Aes Intake Canal and Canal de Patillas, both important pathways within the regional water management efforts. This collaborative network supports not only the local ecosystems but also agricultural practices by ensuring effective drainage and transportation of water.

Why the data matters here

Continuous data from the USGS gauge operates at this site, recording both the water levels and discharge of the Canal de Juana Diaz. This data is especially useful as it allows monitoring of the canal's response to rainfall and flood events. Today’s reading will provide a comparison against the median for this calendar day over the station's 22 years of historical records. This insight is crucial for local authorities, farmers, and residents alike, as it helps predict water behavior and plan for potential flood events, ultimately enhancing community resilience in this vibrant region of Puerto Rico.

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