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.
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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.
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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.
Rio Corozal at Corozal Water Level
Live river level, flow, historical records and forecast for Rio Corozal at Corozal in PR, United States, built from official government gauge data.
- Location PR, United States
- Watershed cibuco guajataca
- Primary gauge 50038300 (USGS)
About Rio Corozal at Corozal
Rio Corozal - A swift river channel amid tropical dynamics.
The Rio Corozal flows through the vibrant landscape of Puerto Rico, showcasing the rapid response of its waters to rainfall. This river, located at Corozal, plays an important role in the Cibuco-Guajataca watershed, offering a glimpse into the rainfall-driven hydrology typical of tropical islands.
Why the data matters here
Monitoring the Rio Corozal allows for a better understanding of the local hydrological patterns, especially given Puerto Rico's characteristic tropical weather. The river can experience significant variations in water levels, particularly during heavy rain events, due to the steep contours of its basin and close proximity to the coast. Data from the USGS station at this location not only tracks water levels but also provides insights into discharge, essential for assessing the river's behavior throughout different seasons.
Today's reading contributes to more than eight years of historical data collection. By comparing this current measurement against the median for this calendar day, we gain a clearer perspective on the river's fluctuations and ensure a more informed approach to local water management. This metric is crucial; it encapsulates the river's response to seasonal changes and precipitation patterns, offering an essential context for residents and stakeholders alike.
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
