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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 Patillas above Aes Intake at Guayama Water Level

Live river level, flow, historical records and forecast for Canal de Patillas above Aes Intake at Guayama in PR, United States, built from official government gauge data.

About Canal de Patillas above Aes Intake at Guayama

Canal de Patillas - A vital rainfall-driven waterway in southern Puerto Rico.

The Canal de Patillas, located above the Aes Intake at Guayama, serves as an essential waterway in the Southern Puerto Rico region. This river flows through a landscape shaped significantly by the tropical climate, marked by intense rainfall events. Local residents and agricultural stakeholders rely on this waterway, which often responds rapidly to precipitation, reflective of the island's unique hydrological patterns.

The watershed context

The Canal de Patillas is part of a dynamic and responsive watershed system typical of tropical island environments. In Puerto Rico, rainfall-driven flash floods can emerge swiftly, particularly during hurricanes and tropical waves. The steep basins that characterize this area can witness significant changes in water levels within hours, making the monitoring of this river crucial for flood preparedness and water management.

The Canal de Patillas is surrounded by several other significant waterways, including the Aes Intake Canal and various segments of the Canal de Juana Diaz. Together, these rivers form an interconnected tapestry of waterways that facilitate the movement of water across the southern part of the island.

Why the data matters here

Monitoring the Canal de Patillas is paramount for understanding local hydrology and managing flood risks in the region. The stream gauged by the United States Geological Survey (USGS) measures not only the elevation of the water but also provides discharge data, which is vital in anticipating changes in water levels. Today's measurement is compared against the median for this calendar day over the past 19 years, allowing for insights into water trends and aiding in the preparation for rainfall impacts. This method of comparison surpasses simply looking at raw elevation, as it contextualizes the current data against historical patterns, making it easier for stakeholders to make informed decisions based on the canal's behavior.

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