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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 Caonillas at Paso Palma Water Level

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

About Rio Caonillas at Paso Palma

Rio Caonillas - A rainfall-driven river in Puerto Rico.

Nestled within the Cibuco-Guajataca watershed, the Rio Caonillas at Paso Palma offers a keen insight into the tropical hydrology of Puerto Rico. This river is influenced by the region’s characteristic rainfall patterns, where intense storms can lead to flash floods, particularly during hurricane season and tropical wave events. The dynamic changes in its flow reflect the subtle rhythms of the local climate, illustrating how swiftly this river can rise in response to heavy rains.

The watershed context

The Rio Caonillas is part of a network that includes various other waterways such as the Canal de Aguadilla, Canal de Derivacion at Lago de Guajataca, and Lago Guerrero. The station at Paso Palma drains a catchment area of roughly 38 square miles (about 98 square kilometers). This relatively compact basin allows the river to react quickly to rainfall, with potential for sudden increases in water levels that can impact both the surrounding environment and local communities.

In Puerto Rico, water levels are subject to quick fluctuations, which is especially evident in rivers like the Rio Caonillas during the wet season. With the annual rhythm featuring heavy storms and intermittent dry spells, the monitoring of river flows is crucial for understanding the hydrological balance in this tropical setting.

Why the data matters here

Today's reading at the Rio Caonillas is essential for those engaged in agriculture, flood preparedness, and ecological conservation. The data collected by the U.S. Geological Survey (USGS) helps provide real-time insights into river conditions, enabling stakeholders to make informed decisions. It is important to consider current readings in context; today’s measurement is compared against the median for this calendar day, offering a clearer picture of the river's status than raw elevation alone. With over 31 years of historical data at this station, understanding these patterns assists not just in immediate flood responses, but also in ongoing environmental and safety planning as conditions evolve.

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