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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.

Rio Espiritu Santo near Rio Grande Water Level

Live river level, flow, historical records and forecast for Rio Espiritu Santo near Rio Grande in PR, United States, built from official government gauge data.

About Rio Espiritu Santo near Rio Grande

Rio Espiritu Santo - A vital lifeline flowing through Eastern Puerto Rico.

Nestled within the lush landscape of Eastern Puerto Rico, the Rio Espiritu Santo near Rio Grande serves as a vital waterway, sustaining the surrounding ecosystems and communities. This river measures approximately 8.6 square miles in its drainage area, illuminating the intricate web of life that depends on its flow. It supports various flora and fauna unique to the region while also providing essential resources for local cottagers and anglers.

The watershed context

The Rio Espiritu Santo is part of the larger Eastern Puerto Rico watershed, which is characterized by its heavy reliance on rainfall. The region experiences rapid changes in water levels due to tropical storm systems, with rainfall-driven flash floods occurring throughout the year. This often leads to swift rising of water levels, particularly during hurricane seasons when tropical waves can exacerbate flooding events. The surrounding hills and valleys contribute to the river's swift and responsive nature, making it a critical natural resource in both wet and dry conditions.

Nearby, various other streams and rivers such as Lago Carite, Quebrada Grande, and Rio Caguitas share the same environmental vulnerabilities and resources. These neighbouring bodies highlight the intricate relationships within the watershed and showcase the importance of managing water flow effectively to protect both natural habitats and human activities.

Why the data matters here

The US Geological Survey (USGS) monitors the Rio Espiritu Santo, providing critical data regarding its discharge and water levels. This data is essential for understanding the river's response to both seasonal changes and extreme weather conditions. By comparing today's river reading against the median for this calendar day across more than 50 years of historical records, stakeholders can gain insight into current trends and prepare for potential flooding events. Elevation levels give a snapshot, but the median comparison offers context within the river's historical performance, ensuring that communities along its banks stay informed and vigilant.

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