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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.

Sabino Creek near Tucson Water Level

Live river level, flow, historical records and forecast for Sabino Creek near Tucson in AZ, United States, built from official government gauge data.

About Sabino Creek near Tucson

Sabino Creek - a vital channel in the Rillito watershed.

Sabino Creek flows near Tucson, Arizona, serving as a crucial component of the Rillito watershed. This river plays an essential role in the local ecology and hydrology, particularly considering the region's unique arid climate.

The watershed context

Draining roughly 35.5 square miles, Sabino Creek is part of a broader network of rivers and washes that include notable peers such as Rillito Creek, Cienega Creek, and Pantano Wash. The waterways in this part of the Southwest are shaped by the arid climate, where summer monsoon thunderstorms can lead to sudden and violent flash floods, while winter storms and snowmelt from higher elevations contribute to flow in the larger rivers. Flows in many channels can dry up between these significant events, underscoring the dynamic nature of the hydrological cycle in this region.

Why the data matters here

Monitoring data from the U.S. Geological Survey (USGS) is vital for understanding the health and variability of Sabino Creek. As the creek does have discharge measurements, it provides essential insights that can inform flood-watching efforts and help manage water resources effectively. Today's reading, when compared to the median for this calendar day across the station's historical record of over 43 years, allows us to better understand current conditions and evaluate them within the context of long-term trends. This approach is especially crucial in Arizona's variable climate, where understanding the nuances of flow can aid in preparing for both flood risks and droughts.

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