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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.

EF Kawela Gulch near Kamalo, Molokai Water Level

Live river level, flow, historical records and forecast for EF Kawela Gulch near Kamalo, Molokai in HI, United States, built from official government gauge data.

About EF Kawela Gulch near Kamalo, Molokai

EF Kawela Gulch - A fast-flowing waterway in Molokai’s tropical landscape.

EF Kawela Gulch near Kamalo, located in the beautiful Hawaiian island of Molokai, is a river that showcases the dynamic hydrology typical of this tropical environment. With a small drainage area of roughly 0.4 square miles, the gulch quickly responds to rainfall events, highlighting the characteristic flash floods associated with the area's steep, short basins.

The watershed context

This location is part of the Molokai watershed, surrounded by several other waterways that share similar characteristics. Nearby streams and gulches, such as Halawa Stream and Kamalo Gulch, demonstrate the interconnected nature of the hydrological system in this region. Rainfall-driven events shape the flow in these streams, leading to rapid responses that can shift dramatically due to sudden rainfalls, particularly during trade-wind and Kona storm periods.

Why the data matters here

Understanding the conditions at EF Kawela Gulch is essential, especially given that the gauge measures discharge levels. Monitoring water flow at this station, operated by the U.S. Geological Survey (USGS), provides critical insights into the river's behavior during and after rainfall. Today’s reading, compared to the median for this calendar day, allows for a more accurate understanding of the current conditions, especially since it reflects trends over the past eight years of data collection. This context is vital for local residents and those who engage with the gulch, assisting them in anticipating changes in flow and potential flash floods.

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