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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 Sabana at Sabana Water Level

Live river level, flow, historical records and forecast for Rio Sabana at Sabana in PR, United States, built from official government gauge data.

About Rio Sabana at Sabana

Rio Sabana - a dynamic river shaped by heavy rainfall.

The Rio Sabana flows through the lush, tropical landscape of Eastern Puerto Rico. This river, characterized by its rapid responses to rainfall, is a vital part of the local hydrological system. Rainfall-driven flash floods are a common occurrence year-round, particularly heightened by tropical storms and hurricanes, which can bring significant and sudden changes to water levels within hours.

The watershed context

Draining roughly 4 square miles, the Rio Sabana's catchment area collects rainfall and runoff, feeding the river in a tropical environment where precipitation is plentiful. This area supports a variety of ecological systems and waterways, including several neighbors like Lago Carite, Quebrada Grande, and Rio Blanco. Together, these water bodies contribute to the intricate network that is essential for maintaining the local hydrology and ensuring ecological balance.

The region experiences a highly dynamic water cycle, responding quickly to rainstorms. During periods of intense rainfall, the river can rise rapidly, reflecting the typical weather phenomena of tropical regions. As a result, residents and those enjoying the natural surroundings must remain mindful of the potential for flash floods, which can occur with little warning.

Why the data matters here

Today, the Rio Sabana's water level is monitored by the U.S. Geological Survey (USGS), which provides crucial data on river conditions. This station measures not just elevations but also discharge, which can give a more complete picture of river dynamics. Knowing how today's reading compares to the historical median for this calendar day—over the past 47 years—helps to contextualize current conditions against seasonal rhythms and historical norms. Understanding these metrics means better preparedness for community members and enthusiasts alike, enhancing safety and promoting a deeper connection to the vibrant riverscape.

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