Verify your email to receive alerts and history exports.
Favorites
Loading…
Notifications
No active alerts
Set an alert on any lake to get notified when levels change.
The Nibi Dispatch
Water moves. Stay ahead of it.
One email a week — freshet watches, record levels, new regions. Nothing else.
Map

Sign in

Alerts & notifications Get notified when your favorite lakes go outside normal range
Loading…
Your account Email, subscription, and account actions
Loading…
DEV ZONE

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 Guanajibo near Hormigueros Water Level

Live river level, flow, historical records and forecast for Rio Guanajibo near Hormigueros in PR, United States, built from official government gauge data.

About Rio Guanajibo near Hormigueros

Rio Guanajibo - A dynamic river in the heart of Puerto Rico.

The Rio Guanajibo flows through Hormigueros, offering a vital connection within the Culebrinas-Guanajibo watershed. This river and its tributaries play an essential role in the local hydrological landscape, with a drainage area of approximately 120 square miles feeding into the system. Known for its quick-response to rainfall, the Rio Guanajibo exemplifies the tropical island hydrology typical of Puerto Rico, characterized by rapid changes in water levels.

The watershed context

The Culebrinas-Guanajibo watershed is a rich network of rivers and streams that manage substantial rainfall, especially during the tropical storm season. It is not uncommon for the rivers in this region to undergo significant flooding within a short period, a result of intense rainfall events. The area is interconnected with several other notable waterways, including the Rio Culebrinas and the Rio Grande de Anasco, helping to manage and transport water throughout the landscape.

Each rainfall event has the potential to cause flash floods, making the health and management of the Rio Guanajibo of paramount importance to local residents and ecosystems alike. The collaborative influence of neighboring rivers helps to mitigate floods and supports the overall resilience of the watershed.

Why the data matters here

Monitoring water levels at the Rio Guanajibo is crucial, especially given the volatile nature of its hydrology. The U.S. Geological Survey (USGS) provides essential data that helps to track elevation changes, offering a clearer picture of current conditions in relation to historical records. Today’s reading, when compared to the median for this date over the past 50 years, provides critical insights for farmers, flood-watchers, and community members. This context is particularly valuable because it allows for informed decisions and swift responses amid the unpredictable weather patterns characteristic of Puerto Rico’s tropical climate.

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