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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.

Roseway River at Lower Ohio Water Level

Live river level, flow, historical records and forecast for Roseway River at Lower Ohio in Canada, NS, Canada, built from official government gauge data.

About Roseway River at Lower Ohio

Roseway River - A vital flow through Nova Scotia.

The Roseway River flows through the heart of Nova Scotia, carving its path through the landscape and nourishing the ecosystems along its banks. Known for its ecological importance, this river has a drainage area of approximately 499 square kilometres, where it meanders towards Lower Ohio, playing a crucial role in the watershed's health.

The watershed context

The Roseway River is part of the larger Roseway watershed, a region characterized by its rain-driven hydrology. Here, precipitation primarily fuels the water levels, with rapid responses to rain events. This is especially apparent in the fall and winter months when rain can lead to swift increases in river flows, as well as during the short spring melt, when accumulated snow and ice feed into the river. The small basins in this area tend to react quickly to changes in water input, making the river an integral component of local water management and ecology.

Why the data matters here

Today's water level data from the Roseway River at Lower Ohio is crucial for understanding the river's current conditions. With a long history of gathered information—more than 111 years of records—this data provides context to gauge today's reading against the median for this calendar day. This comparison is particularly important, as it allows residents and resource managers to anticipate potential flooding or drought conditions, making informed decisions that can protect both the community and the natural environment. This is monitored by the Water Survey of Canada, ensuring reliability and accuracy in assessing the river's health.

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