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.
Little Colorado River at Greer Water Level
Live river level, flow, historical records and forecast for Little Colorado River at Greer in AZ, United States, built from official government gauge data.
- Location AZ, United States
- Watershed little colorado headwaters
- Primary gauge 09383400 (USGS)
About Little Colorado River at Greer
Little Colorado River - A vital flow in the arid Southwest.
The Little Colorado River at Greer, Arizona, is a significant watercourse within the Little Colorado Headwaters watershed. This river serves an essential role in the local ecosystem, showcasing the distinct characteristics of Arizona's arid hydrology. With a drainage area of roughly 29.1 square miles, the Little Colorado River embodies the dynamic relationship between precipitation and water flow in a region often challenged by drought.
The watershed context
The Little Colorado River flows through a landscape dominated by seasonal extremes. In the summer, monsoon thunderstorms can produce intense rain over short periods, leading to flash floods that can dramatically alter the flow of the river. Conversely, the winter months often bring snowmelt from the high country, which contributes to the river's flow. These conditions create a unique environment where the river can fluctuate significantly—the upstream channels may run dry between these infrequent events. The river also shares its watershed with other notable features, including the Little Colorado River above Lyman Lake and Lyman Lake itself.
Why the data matters here
Understanding the current water levels of the Little Colorado River is vital for the communities and ecosystems that rely on it. Today's measurement from the U.S. Geological Survey provides a current reading compared to the median for this calendar day based on over 50 years of historical data. This comparison helps to contextualize the flows and assess how current conditions align with typical patterns, providing insights critical for water management and conservation efforts in this arid region.
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
