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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 Blw Guayama Filtration Plant Water Level

Live river level, flow, historical records and forecast for Canal de Patillas Blw Guayama Filtration Plant in PR, United States, built from official government gauge data.

About Canal de Patillas Blw Guayama Filtration Plant

Canal de Patillas - a vital waterway amidst Puerto Rico's tropical rhythms.

The Canal de Patillas, located below the Guayama filtration plant in Puerto Rico, serves as an essential water resource in the Southern Puerto Rico watershed. This river, integral to local communities and ecosystems, reflects the dynamics of an environment characterized by heavy rainfall and the potential for rapid hydrological changes.

The watershed context

The watershed feeding the Canal de Patillas is part of Southern Puerto Rico, an area known for its rainfall-driven hydrology. This region experiences year-round precipitation, with flash floods becoming particularly severe during hurricanes and tropical storms. The steep basins in this locale often rise quickly, bringing the river to significant height in a matter of hours.

Surrounding water bodies like the Aes Intake Canal and Canal de Guamani Oeste play pivotal roles in the area. These interconnections provide context to the hydrology at play, with neighboring canals related through a network that allows for the transport and filtration of water resources essential for the local population.

Why the data matters here

The Canal de Patillas is monitored by the U.S. Geological Survey (USGS), which provides critical data on its discharge and hydrological patterns. This real-time data is crucial for managing the water supply, especially because the area is prone to sudden variations in water levels due to its rainfall-driven flooding.

Today's reading from the Canal de Patillas compared to the median for this calendar day over the station's 24 years of historical data helps gauge current conditions. Understanding today's flow in relation to historical averages is vital for local stakeholders, from farmers to flood-watchers, providing context and clarity in an area where water behavior can change swiftly.

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