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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.

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How snowpack becomes summer water

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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

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Mendenhall R below Montana C near Auke Bay AK Water Level

Live river level, flow, historical records and forecast for Mendenhall R below Montana C near Auke Bay AK in AK, United States, built from official government gauge data.

About Mendenhall R below Montana C near Auke Bay AK

Mendenhall River - A glacial river flowing through a dynamic landscape.

The Mendenhall River, located below Montana Creek near Auke Bay, Alaska, is an intriguing waterway that plays a vital role in the hydrology of the Lynn Canal area. This river is influenced by the region's subarctic climate, where seasonal rhythms dictate the water levels and flow patterns throughout the year.

The watershed context

Mendenhall River is part of the broader Lynn Canal watershed, known for its glacial landscapes and diverse aquatic ecosystems. The river flows through a terrain characterized by steep gradients and variable topography, which can lead to sudden changes in flow, particularly during seasonal transitions. Spring breakup and snowmelt are key events for the Mendenhall River, with the potential for flooding often exacerbated by ice jams that form during this time. Without recorded figures for its drainage area, we can still appreciate this river as an integral part of the local hydrological network.

Why the data matters here

Today's reading for the Mendenhall River provides a snapshot of current conditions, which can be particularly informative for local users such as anglers and flood-watchers. It is essential to note that the reading is best understood in context; it indicates how the water level compares to the median for this date based on over a year of historical data tracked by the U.S. Geological Survey (USGS). Such comparisons are vital in understanding trends and deviations in water levels, offering valuable insights for both recreational and environmental management in the area.

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