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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.

Ka Loko Reservoir near Kilauea, Kauai Water Level

Live lake level, flow, historical records and forecast for Ka Loko Reservoir near Kilauea, Kauai in HI, United States, built from official government gauge data.

About Ka Loko Reservoir near Kilauea, Kauai

Ka Loko Reservoir - A vital water source on Kauai's landscape.

Nestled near Kilauea on the island of Kauai, Ka Loko Reservoir serves as an essential feature in the hydrological landscape of Hawaii. It captures rainwater runoff and plays a significant role in managing Kauai's dynamic water system. Surrounded by lush vegetation, this reservoir reflects the tropical island's immediate weather patterns, which can quickly shift due to rainfall and storms.

The watershed context

Located within the Kauai watershed, Ka Loko Reservoir interacts with several nearby water bodies, including the East Branch of the North Fork Wailua River and the renowned Hanalei River. The rainfall-driven hydrology here immerses the region in quick shifts, with steep basins allowing for rapid water level changes due to the influence of trade winds and Kona storms. Understanding these dynamics is crucial for those who engage with the land and water in various capacities, from agriculture to recreation.

Why the data matters here

Monitoring water levels at Ka Loko Reservoir is invaluable, especially given the historically variable conditions of tropical hydrology. The U.S. Geological Survey (USGS) provides data from this site, allowing users to keep track of water levels, which can provide situational awareness in the event of flash floods—a common occurrence in the area.

Today's reading, compared against the median for this calendar day across 20 years of recorded data, provides a reliable context for understanding current conditions. Evaluating this figure is vital, as it presents a clearer picture than a raw elevation reading alone, offering insights into the effects of recent weather patterns on the reservoir's status.

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