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.
Hanalei River near Hanalei, Kauai Water Level
Live river level, flow, historical records and forecast for Hanalei River near Hanalei, Kauai in HI, United States, built from official government gauge data.
- Location HI, United States
- Watershed kauai
- Primary gauge 16103000 (USGS)
About Hanalei River near Hanalei, Kauai
Hanalei River - a dynamic waterway shaped by tropical rains.
The Hanalei River, flowing near the town of Hanalei on the island of Kauai, serves as a vital part of the landscape and hydrology of this region. As a river that experiences swift changes in its levels, it is representative of Kauai's tropical island hydrology, where rainfall can lead to rapid fluctuations. Rainfall-driven flash floods occur in this environment, with conditions escalating within minutes to hours due to the steep, short basins typical of the area.
The watershed context
The Hanalei River drains a catchment area of approximately 18.5 square miles. Known for its lush landscapes and rich biodiversity, the watershed is regularly influenced by trade-wind and Kona storms, which fuel its water levels and contribute to sediment transport throughout the system. The river's unique location allows it to serve various ecosystems and support local flora and fauna, feeding into the greater Kauai watershed.
Nearby, you’ll find peers such as the East Branch of the North Fork Wailua River and the Halaulani Stream, making this area a pivotal junction for water flow and ecological diversity on the island. The interplay between these water bodies is critical for understanding local hydrology as well as the management of flood risks associated with heavy rainfall.
Why the data matters here
Understanding the river's behavior, reflected in its measured discharge, is essential. Real-time data from the US Geological Survey allows observers to monitor changes in water levels, making it easier for agriculturists, residents, and visitors to be aware of fluctuations that can lead to flash flooding. As of today, the Hanalei River reading can be compared to the median level recorded on this date over the past 50 years, providing context to its current state. This analysis underscores the importance of historical comparisons, as it reveals trends and anomalies, essential for anticipating and responding to changing conditions in this active watershed.
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
