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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.

Paria River at Lees Ferry Water Level

Live river level, flow, historical records and forecast for Paria River at Lees Ferry in AZ, United States, built from official government gauge data.

About Paria River at Lees Ferry

Paria River at Lees Ferry - A confluence of desert and water.

The Paria River at Lees Ferry flows through a dynamic and often challenging landscape of Arizona's arid Southwest. This river, part of the Paria watershed, offers a unique glimpse into the intricate hydrological patterns that define the region. The river's flow is influenced by summer monsoon thunderstorms, which can bring intense rain and lead to sudden flash floods. In contrast, winter storms and snowmelt from higher elevations contribute to the river's volume, showcasing the seasonal variability that characterizes the area.

The watershed context

Draining roughly 1,410 square miles, the Paria River's catchment area reflects the parched surroundings and climactic extremes of the Southwest. It is important to note that many channels in this region often run dry between significant weather events, amplifying the importance of gauging river levels like those at Lees Ferry. This river also has peers, notably the Paria River near Kanab, Utah, providing comparative insights into regional hydrology.

Why the data matters here

Understanding the water levels at Paria River at Lees Ferry is crucial for a variety of reasons. Regular monitoring by the U.S. Geological Survey (USGS) ensures that current data is available for anglers, cottagers, and farmers who depend on these waters. Today's reading, evaluated against the median for this calendar day over the past 50 years, provides context to elevate changes in flow and gauge possible flood risks or low flow conditions. This approach to data analysis emphasizes the river’s performance over time, rather than just a single elevation, making it a vital tool for local stakeholders.

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