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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.

Moanalua Stream near Kaneohe, Oahu Water Level

Live river level, flow, historical records and forecast for Moanalua Stream near Kaneohe, Oahu in HI, United States, built from official government gauge data.

About Moanalua Stream near Kaneohe, Oahu

Moanalua Stream - A vibrant watercourse on Oahu’s windward coast.

Moanalua Stream flows through the lush landscapes near Kaneohe on the eastern side of Oahu. This vibrant stream reflects the unique hydrology of the region, where rain-driven flash floods can occur with little warning, particularly during seasonal storms influenced by trade winds. With a catchment area of roughly 0.9 square miles, the dynamics of Moanalua Stream are distinctly shaped by its environment.

The watershed context

The Moanalua Stream is part of the broader Oahu watershed, a region characterized by its steep gradients and rapid changes in elevation. Rainfall in Oahu is concentrated, leading to quick responses in stream flows that can rise dramatically in a short period following rain events. The stream serves as one of several water bodies in the vicinity, with peers such as Heeia Stream and Helemano 6 Reservoir contributing to the intricate hydrological network that supports the local ecosystem and communities.

Why the data matters here

Understanding the water levels of Moanalua Stream is crucial for flood management and environmental monitoring. The U.S. Geological Survey (USGS) measures the stream's discharge and water elevation, providing vital data on its current condition. Today’s reading, when compared to the historical median for this calendar day over the past 50 years, offers further insight into the stream's behavior and helps predict potential flooding risks in the area. By tracking these trends, residents and authorities can better prepare for the sudden changes that tropical rainfall can bring.

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