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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.

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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.

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How snowpack becomes summer water

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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.

Kahakuloa Stream near Honokohau, Maui Water Level

Live river level, flow, historical records and forecast for Kahakuloa Stream near Honokohau, Maui in HI, United States, built from official government gauge data.

About Kahakuloa Stream near Honokohau, Maui

Kahakuloa Stream - a vital lifeblood of Maui's landscape.

Kahakuloa Stream near Honokohau serves as a crucial waterway on the island of Maui, reflecting the dynamic terrenes and unique weather patterns of Hawaii. This river, which runs through lush greenery and steep basins, showcases the island's tropical hydrology shaped by intense rainfall, often leading to rapid rises in water levels. The catchment area above this station encompasses roughly 3.4 square miles, indicating the relatively compact nature of Maui's drainage systems, where landscapes can go from dry to flooded in a matter of moments due to sudden rainfall.

The watershed context

The watershed associated with Kahakuloa Stream is part of Maui, boasting several neighboring streams such as Haipuaena Stream and Hanawi Stream. These waterways weave through the diverse terrain of the island, contributing to a unique ecosystem that thrives on the regular influx of fresh water. The region's hydrologic behavior is predominantly rainfall-driven, meaning that the stream's flow can surge dramatically within minutes or hours, particularly during the trade-wind storms that characterize the Hawaiian climate.

The lack of a snowmelt season means that fluctuations in the stream's levels will primarily result from the varying patterns of precipitation. Cottagers and visitors should take heed of weather forecasts, especially during wet seasons, as conditions can change rapidly and lead to flash floods.

Why the data matters here

Monitoring and understanding the data from Kahakuloa Stream is essential for both local residents and agricultural interests. The U.S. Geological Survey (USGS) operates the measuring station here, providing invaluable information regarding water levels and discharge rates. This project has been in place for over 50 years, allowing for a comprehensive historical perspective on the stream's behavior.

Today's reading, compared against the median for this calendar day from the station's historical records, provides crucial insight. While raw elevation levels indicate the immediate state of the stream, comparing today's figure to the norm allows for context regarding whether conditions are unusually high or low. For anyone navigating the vibrant terrain of Maui, this data is pivotal for safety and effective resource management.

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