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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.

Willow C near Willow AK Water Level

Live river level, flow, historical records and forecast for Willow C near Willow AK in AK, United States, built from official government gauge data.

About Willow C near Willow AK

Willow Creek - a vital flow in the subarctic landscape.

Willow Creek flows through the rugged terrain of south-central Alaska, contributing to the vibrant Lower Susitna River watershed. As a notable tributary, it brings life to the natural ecosystem while also providing resources to the communities nearby. The region exhibits characteristic Subarctic hydrology, where the dynamics of snowmelt and ice breakup play a critical role in defining the annual water levels and flow patterns.

The watershed context

Willow Creek, located near the town of Willow, is an integral part of a watershed that encompasses roughly 167 square miles. This drainage area supports the creek’s flow and helps define seasonal variations. Key neighbors of Willow Creek include the Kashwitna River and the Lower Susitna River, which further enrich the aquatic landscape. This tributary, with its waters primarily sourced from snowmelt in spring and early summer, generally experiences peak flows during this time frame. The typically deep winter flows are affected by the ice cover, leading to lower discharges until the thaw begins.

Why the data matters here

Regular monitoring of Willow Creek's water levels and discharge is essential for understanding its ecological health and ensuring the safety of surrounding communities. Today's reading from the U.S. Geological Survey (USGS) can be compared to the historical median for this calendar day. This context is vital, as it allows for meaningful assessments against the backdrop of the creek’s long-term behavior. By examining variations from this norm, water managers and local stakeholders can make informed decisions regarding flood risks and ecological protection. With 48 years of records guiding analysis, the data highlights Willow Creek's crucial role in supporting both environmental and human needs throughout its watershed.

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