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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

The flood of record that was overtaken

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.

Why the Assiniboine floods every spring

Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.

How snowpack becomes summer water

The science of snow water equivalent and why it drives the season ahead.

Reading a staff gauge like a hydrologist

What the numbers on the measuring stick actually tell you.

Flash Flood Alley: how Texas rivers rise in hours

Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.

What a "100-year flood" actually means

One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.

Newman Canyon above Upper Lake Mary Water Level

Live river level, flow, historical records and forecast for Newman Canyon above Upper Lake Mary in AZ, United States, built from official government gauge data.

About Newman Canyon above Upper Lake Mary

Newman Canyon above Upper Lake Mary - a dynamic waterway in the arid Southwest.

Nestled above Upper Lake Mary in Arizona, Newman Canyon is a vital river system that responds dramatically to the region's harsh climate. This waterway flows through the Canyon Diablo watershed, where summer monsoon thunderstorms can trigger sudden and violent flash floods, while winter storms and snowmelt from higher elevations sustain the river during dryer months. The annual rhythm of this environment showcases the stark contrasts between periods of heavy rainfall and dry spells, emphasizing the importance of water management and awareness for locals and visitors alike.

The watershed context

Newman Canyon drains an area of approximately 22.3 square miles. As it courses away from the surrounding highlands, it contributes to the hydrology of Upper Lake Mary, a critical reservoir that supports recreational activities and wildlife. The fluctuations in water levels can be significant, reflecting the seasonal dynamics that characterize the arid Southwest. Understanding these patterns is essential for those who engage with the water, whether for fishing, boating, or simply enjoying the natural landscape.

Why the data matters here

Today’s reading from the USGS indicates how the current conditions of Newman Canyon compare to its historical performance, measured against the median for this calendar day over more than 12 years. This context is given greater meaning through the flow data, which provides insight into the river's health and changes in water levels. Observing these metrics helps to inform decision-makers regarding water use and conservation strategies, particularly in a region where precipitation is as unpredictable as it is critical.

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