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.
Horseshoe Reservoir at Horseshoe Dam Water Level
Live lake level, flow, historical records and forecast for Horseshoe Reservoir at Horseshoe Dam in AZ, United States, built from official government gauge data.
- Location AZ, United States
- Watershed lower verde
- Primary gauge 09509501 (USGS)
About Horseshoe Reservoir at Horseshoe Dam
Horseshoe Reservoir - Vital storage for the Lower Verde Watershed.
Nestled within the arid landscapes of Arizona, Horseshoe Reservoir at Horseshoe Dam serves as an essential water source for the Lower Verde watershed. This reservoir plays a critical role in harnessing the water from the surrounding terrain, primarily during the seasonal fluctuations influenced by summer monsoon thunderstorms and winter storm runoff.
The watershed context
The Lower Verde watershed encompasses a significant drainage area of approximately 5,973 square miles, collecting water from an intricate network of tributaries, including Bartlett Reservoir and Fossil Creek. In the context of Arizona's hydrology, summer monsoons can lead to sudden and intense flash floods, reshaping the landscape and contributing to the reservoir's water levels. Conversely, during the winter, snowmelt from higher elevations provides slow and steady inflows that are crucial for maintaining consistent water levels. However, it is common for channels to run dry between these significant water events, further underscoring the importance of the Horseshoe Reservoir in regulating water supply in this dynamic environment.
Why the data matters here
Understanding the water levels at Horseshoe Reservoir is vital for numerous stakeholders, from agricultural producers to recreational users. Today’s readings contribute to a more comprehensive understanding of the reservoir's health and availability. When comparing today's level to the historical median for this day over 19 years of record, this measurement offers a clearer picture than just raw elevation numbers. These insights are crucial for anticipatory water management and informed decision-making, as managed by the U.S. Geological Survey (USGS).
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
