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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.

Heeia Stream at Haiku Plantations Dr., Oahu Water Level

Live river level, flow, historical records and forecast for Heeia Stream at Haiku Plantations Dr., Oahu in HI, United States, built from official government gauge data.

About Heeia Stream at Haiku Plantations Dr., Oahu

Heeia Stream - A dynamic river reflecting Oahu's tropical rhythm.

Heeia Stream flows energizingly through Oahu’s lush landscape, capturing the essence of the island's rainfall-driven hydrology. Located at Haiku Plantations Drive, this river is part of a network that channels the intense rainfall events typical of the region. With a small catchment area of roughly 1.9 square miles, the stream responds quickly to rainfall, rising dramatically during flash floods influenced by trade winds and occasional Kona storms.

The watershed context

The Heeia Stream is nested within the Oahu watershed, surrounded by a vibrant ecosystem that thrives on the abundant precipitation of the area. This quick run-off behavior makes the stream an essential aspect of the landscape, providing vital water for local flora and fauna. In this unique tropical environment, streams like Heeia encounter rapid fluctuations in flow, making them crucial for understanding Oahu's water dynamics. Other nearby bodies of water include Kahaluu Stream and the Helemano 6 Reservoir, contributing to the complexity of the watershed.

Why the data matters here

Monitoring the flow of Heeia Stream through the U.S. Geological Survey provides valuable insights into local hydrology. Today's reading is particularly significant when compared to the historical median for this date; it reflects recent weather patterns and informs residents about potential flooding risks associated with rapid rainfall accumulation. This context is essential for those who live near the stream, farm in the area, or engage in recreational activities on Oahu, ensuring that the community can respond appropriately to the water's changing dynamics.

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