WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for Lake Moultrie Tailrace Canal at Moncks Corner in SC, United States, built from official government gauge data.
Lake Moultrie Tailrace Canal at Moncks Corner sits in the Cooper watershed in South Carolina.
This station has 48 years on record, so it gives a useful picture of how the water usually behaves here.
The record high is 12.42 ft (3.79 m), set in October 2015. The record low is 4.7 ft (1.43 m), set in March 2008. That spread matters for anyone using the canal edge, a dock, or an intake: the water can move well beyond its usual band when conditions line up.
The seasonal pattern is fairly tight. The highest typical month is September at 7.09 ft (2.16 m), and the lowest typical month is January at 6.21 ft (1.89 m). The typical annual swing is 10.6 in (26.8 cm). For most users, that is a modest change month to month, but the record values show that the canal can depart from the seasonal pattern.
This is rain-driven coastal-plain and piedmont water. Winter and spring rains usually set the pace, while hurricane-season tropical deluges can push levels into unusual ranges. Long warm-season low-flow stretches are part of the local rhythm, so late-summer and early-fall readings deserve attention even when the month-to-month change looks small.
The hero number on this page is today’s reading, set against the median for this calendar day across the USGS record at this station. That comparison is more useful than raw elevation alone because it shows whether the canal is running near its usual seasonal level, above it, or below it for this date.
For more than 48 years of record, that day-by-day context is what helps nearby users judge dock access, shallow-water limits, and when a reading is simply normal for the season.
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.
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada, the US and the UK. Built on official government data.
Nibi Metrics tracks more than 13,000 gauged lakes and rivers across Canada, the United States and the United Kingdom, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, and the Environment Agency for England. Every number on the platform is measured, not modelled - taken from a government gauge on the water itself and compared against that location's own historical record for this exact date.
The level right now, in feet or metres, updated as the source agency publishes new readings - for many stations that is every five to fifteen minutes. How today compares to typical: every location carries its own typical-for-this-date band built from its historical record, so a reading is never just a number - it is above, below, or near what this water usually does on this calendar day. Which way it is moving: a measured RISING, FALLING, or STEADY verdict computed from the gauge's own recent readings, with the rate of change - the difference between a flood ending and one beginning. What comes next: level forecasts up to 72 hours ahead, driven by the gauge's recent behaviour, upstream water, and quantitative precipitation forecasts, alongside live radar, lightning, and weather for the surrounding region.
Set a threshold on any location - a level, a distance above typical, or a rate of climb - and Nibi emails or notifies you the moment the gauge crosses it. Cottagers use it for spring freshet, anglers for river conditions, marinas and municipalities for operations. The scanning runs around the clock against the same measured data shown on every page.
Nibi means water in Anishinaabemowin. The platform began at a family cottage on Lake Muskoka, Ontario, where the spring melt floods the shoreline most years and the only forecast was standing on the dock, looking, and guessing. It grew into an independent, member-funded platform run by Muskoka Research Inc. - no investors, no data resale, and a privacy policy shorter than most cookie banners. The core data is free for everyone, forever; paid plans add automation like multi-location alerts, deep history, and reports.
Nibi spans the continent: every Canadian province and territory with active federal gauges - from Vancouver Island rivers to the Muskoka lakes, prairie reservoirs, and Quebec's hydrometric network - and the United States from Maine to the Texas Hill Country, the Ohio Valley, and the Pacific Northwest. Coverage grows where the water news is: when a basin floods, its gauges join the platform with their full historical records attached. Many stations report every five to fifteen minutes; most report at least hourly; every page states exactly when its gauge last spoke.
The core promise is simple: the water data is free, for everyone, forever. Live levels, maps, radar, and recent history never sit behind a paywall. Paid plans fund the platform by adding automation - multi-location alerts, decades of history, longer forecasts, and PDF reports - so the people who need more carry the cost for everyone who just needs to check the lake before driving up. There are no investors and no advertising deals shaping what the data says.
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