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 at Aberdeen Lock and Dam in MS, United States, built from official government gauge data.
The Tombigbee River at Aberdeen Lock and Dam sits in the Upper Tombigbee watershed, Mississippi.
The station drains 2047 sq mi (5302 km2) upstream of the dam. That is the area feeding this gauge, not the whole watershed name.
This is a long-record USGS site with 42 years on record. The river has stayed within a narrow band in the seasonal summary, but the record spread is wider: 41.19 ft (12.56 m) in May 1991 and 38.96 ft (11.88 m) in September 1987. For someone living or fishing here, that gap is the size of the long-term extremes the gauge has seen, even if most years sit much closer together.
The highest typical month is May at 40.24 ft (12.27 m), and the lowest typical month is December at 40.17 ft (12.25 m). The typical annual swing is 0.8 in (2 cm).
That seasonal pattern is very tight. A dock, intake, or bank setup here needs to handle only a small month-to-month change in a typical year, but the record high and low show that larger departures do happen. The river has not shown a fastest 24-hour rise in the facts provided here, so I cannot put a warning-time number on it.
The regional pattern for this part of the Gulf lowland is winter-spring rains setting the annual peaks, with tropical systems able to bring extreme rises. Slow lowland drainage can keep water high for days.
The hero number on this page is today’s reading compared with the median for this calendar day across the station record. That is more useful than raw elevation because the same level can mean different things in different parts of the year.
At this USGS station, that comparison is made against more than 42 years of observations. It tells you whether the river is running above or below its usual place for this date, which is the number that matters when you are deciding on launches, bank access, or flood watch.
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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