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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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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

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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.

Witches Brook near Merritt Water Level

Live river level, flow, historical records and forecast for Witches Brook near Merritt in Canada, BC, Canada, built from official government gauge data.

About Witches Brook near Merritt

Witches Brook - a quiet mountain stream in the Nicola Valley.

Witches Brook near Merritt flows through the picturesque terrain of British Columbia's Nicola Valley. This river is part of the greater Nicola watershed, an essential drainage system in the region, which supports diverse ecosystems while simultaneously providing vital resources for the local community. With a catchment area of approximately 136 square kilometres draining above the station, Witches Brook plays a significant role in the hydrological dynamics of the area.

The watershed context

The Nicola watershed is characterized by its mountain hydrology, where late spring and early summer typically see heightened water levels due to snowmelt. This freshet phenomenon often peaks between May and July, influenced by snowpack conditions in the surrounding hills. Depending on seasonal climate variations, the lake and river flows in this region can vary significantly, providing diverse habitats along their banks.

Witches Brook is linked with other streams in the area, including Guichon Creek above Tunkwa Lake Diversion, contributing to the overall hydrological balance. The area surrounding Witches Brook features rich flora and fauna, indicative of the diverse ecological presence supported by the local waters.

Why the data matters here

Understanding the water levels at Witches Brook is essential for various stakeholders, including local farmers, cottagers, and those monitoring flood risks. Regular measurements from the Water Survey of Canada (WSC) provide insights into changing conditions.

Today, Witches Brook's reading can be compared to the historical median for this calendar day, offering important context for evaluation. This metric is crucial as it accounts for natural fluctuations over the years, providing a more reliable perspective than raw elevation alone. With more than 20 years of recorded data, the information helps inform decision-making for water usage and conservation strategies in the Nicola Valley.

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