WHAT'S HAPPENING NOW
+88.8 ft above typical
Finding the top signal on the water…
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.
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.
Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.
One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.
Live river level, flow, historical records and forecast for Rio Marin near Patillas in PR, United States, built from official government gauge data.
Rio Marin - A vital waterway in Southern Puerto Rico.
The Rio Marin flows near Patillas, Puerto Rico, serving as an important river that captures local rainfall and guides it through the Southern Puerto Rico watershed. In this region, weather patterns can lead to rapid increases in water levels due to tropical rainstorms, making the Rio Marin an essential lifeline for the surrounding ecosystems and communities. This area typically experiences rainfall-driven flash floods year-round, often intensified by hurricanes and tropical waves.
Draining roughly 4.1 square miles upstream of the gauge, the Rio Marin is part of a network that includes several peers such as the Aes Intake Canal at Canal de Patillas and Canal de Juana Diaz, among others. These waterways are interconnected, contributing to the region’s overall riverine health and flow dynamics. Given the steep basins typical of tropical island hydrology, water levels can fluctuate dramatically in a short time, affecting not just the river itself but the surrounding landscape and biodiversity.
Real-time monitoring of the Rio Marin, handled by the U.S. Geological Survey (USGS), is crucial for understanding its flow and flood patterns. Today's data will compare the current reading against the historical median for this date, providing essential insights into how the river is behaving relative to typical annual trends. This data is invaluable for residents, farmers, and anyone relying on these waters for their livelihood and safety, especially in a region where rainfall can quickly lead to significant changes.
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.