WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for Tombigbee River below Demopolis L&D near Coatopa AL in AL, United States, built from official government gauge data.
Tombigbee River below Demopolis L&D near Coatopa AL is a gauged river in the Middle Tombigbee-Chickasaw watershed, Alabama.
The river’s typical high water comes in March, when the median level is 46.2 ft (14.08 m). By October, the typical level falls to 33.2 ft (10.12 m). That 13 ft (3.96 m) seasonal swing is the part a dock, ramp, or intake has to live with every year.
For people on this reach, that pattern fits the regional rain-driven cycle: winter and spring are the usual high-water season, while the warm months often run lower between storms. The station drains 15,385 sq mi (39,847 km2) upstream of the gauge, so changes over a wide area can still show up here.
The highest level in the record is 85.2 ft (25.97 m) in February 2020. The lowest is 9.4 ft (2.87 m) in April 1995. Those two marks show the range this reach has already shown at the gauge.
With 34 years on record, the station has enough history to put today’s reading in context for anglers and cottagers watching access, current, and bank height. In this part of Alabama, winter and spring rains are the main drivers of the annual peak, and tropical systems can also bring sharp rises later in the year. The record tells you that this river can move a long way from its usual seasonal levels.
The hero number on this page is today’s level compared with the median for this calendar day across the station record. That is more useful than raw elevation alone, because a single height means little without knowing whether it is high or low for this date.
For this gauge, the station is operated by the U.S. Geological Survey. With more than 34 years of record, the day-by-day median gives a practical read on whether the river is running above its normal seasonal mark or below it, which is the difference that matters for access, bank conditions, and how much room the river has left to rise.
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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