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.
Makaha Str near Makaha, Oahu Water Level
Live river level, flow, historical records and forecast for Makaha Str near Makaha, Oahu in HI, United States, built from official government gauge data.
- Location HI, United States
- Watershed oahu
- Primary gauge 16211600 (USGS)
About Makaha Str near Makaha, Oahu
Makaha Stream - A vibrant waterway on Oahu's landscape.
Nestled on the leeward side of Oahu, Makaha Stream near Makaha offers a glimpse into the hydrological dynamics of a tropical island. This river flows through a short, steep basin that is dramatically shaped by intense rainfall events, reflecting the unique characteristics of Hawaii's hydrology. With a catchment area of approximately 2.1 square miles (5.4 square kilometers), the stream is responsive to the rain, rising swiftly during heavy downpours, an essential feature of the region's rainfall-driven flash floods.
The watershed context
Makaha Stream is part of the Oahu watershed, which interacts with several nearby waterways such as Heeia Stream and Kahaluu Stream. The region is characterized by its lush greenery and an intricate network of streams that provide critical habitat and resources for both wild and urban communities. The tropical climate, dominated by trade winds and seasonal Kona storms, shapes the hydrological landscape, allowing for rapid response in flows that serves both the local ecosystem and the interests of the community.
Interestingly, the area around Makaha Stream lacks a significant snowmelt season, contrasting sharply with temperate systems. Instead, water levels fluctuate mainly due to rainfall patterns and potential localized thunderstorms that can create sudden flash floods, making flood awareness a valuable aspect of local life.
Why the data matters here
Monitoring water levels and discharge at the Makaha Stream gauge, operated by the U.S. Geological Survey (USGS), plays a crucial role in ensuring safety in this region. Understanding current conditions can be vital for flood preparedness efforts, particularly when heavy rains can rapidly elevate water levels.
Today’s reading at Makaha Stream is significant as it provides insight into the current hydrologic conditions against the historical median for this calendar day. This context is essential for understanding the flow's behavior and anticipating changes, particularly in a location where rainfall can suddenly transform the landscape. Tracking these changes compares to historical data accumulated over more than 50 years, enabling better responses to the challenges posed by tropical island hydrology.
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
