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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Almagosa River near Agat, Guam Water Level
Live river level, flow, historical records and forecast for Almagosa River near Agat, Guam in GU, United States, built from official government gauge data.
- Location GU, United States
- Watershed guam
- Primary gauge 16848100 (USGS)
About Almagosa River near Agat, Guam
Almagosa River - A vital flow through Guam's landscape.
The Almagosa River, located near Agat in Guam, contributes to the unique hydrology of this tropical island. Driven primarily by rainfall, this river is part of a dynamic system that supports the lush ecosystems and diverse habitats of the region. With a catchment area of approximately 1.3 square miles above the station, the river’s flow can vary significantly with the island's wet and dry seasons, shaping the surrounding landscape and affecting local life.
The watershed context
Positioned within the Guam watershed, the Almagosa River is enveloped by foothills that steeply drain into this waterway. This short basin structure means that rainwater enters the river rapidly, making it particularly susceptible to flash flooding during periods of extreme rainfall, especially during typhoons. This seasonal flow pattern, marked by pronounced wet seasons punctuated by dryness, influences both the natural environment and the human activities surrounding the river. It also connects with nearby waterways, including the La Sa Fua River near Umatac and the Maulap River, contributing to a network that sustains the region.
Why the data matters here
Monitoring the Almagosa River is crucial for understanding local hydrology, particularly for those who live, work, or recreate in the area. The real-time data collected by the U.S. Geological Survey (USGS) provides insights into flow conditions and can help predict flash flood risks. Today’s reading allows for a comparison against the median for this calendar day across more than 50 years of historical data, providing a clearer picture of what constitutes normal conditions for the river. This information is invaluable for planning purposes, water resource management, and ensuring safety during heavy rainfall events.
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
