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
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.
Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.
One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.
Wailuku River at Kepaniwai Park, Maui Water Level
Live river level, flow, historical records and forecast for Wailuku River at Kepaniwai Park, Maui in HI, United States, built from official government gauge data.
- Location HI, United States
- Watershed maui
- Primary gauge 16604500 (USGS)
About Wailuku River at Kepaniwai Park, Maui
Wailuku River - A vital waterway on Maui's slopes.
The Wailuku River flows through Kepaniwai Park in Maui, an area known for its rich tropical vegetation and dynamic hydrology. Stretching over a drainage area of approximately 6.1 square miles, this stream provides essential water resources to the surrounding ecosystem and communities. As part of the Maui watershed, it shares an ecological network with other streams such as Haipuaena Stream, Hanawi Stream, and Honokohau Stream, which all contribute to the island’s diverse water landscape.
The watershed context
Maui's rainfall-driven hydrology dramatically influences the behavior of its rivers, including the Wailuku River. The absence of snowmelt seasons allows for a unique flow dynamic, where heavy rainfall can lead to rapid rises in water levels within a short timeframe. This phenomenon poses challenges such as flash floods that can occur suddenly due to the steep terrain and intense weather patterns caused by trade-wind and Kona storms. As a result, monitoring the river's flow is vital for understanding and managing the risks associated with such events in the region.
Why the data matters here
Today’s reading from the Wailuku River at Kepaniwai Park, measured by the U.S. Geological Survey, provides crucial insights into the river's current status. Comparing this reading to the median for this calendar day across its 43 years of recorded data allows for an informed assessment of the river's recent behavior. This context is essential for local residents, farmers, and visitors, as it helps gauge the potential for flooding or water shortages, ensuring that those who interact with this waterway can do so with greater awareness and understanding.
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
