WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for Arrowe Brook at Greasby Road in England, United Kingdom, built from official government gauge data.
Arrowe Brook at Greasby Road is a gauged river in England.
This station has more than 19 years of record. The highest level in that span was 0.81 m (2.65 ft) in September 2015. The lowest was 0.15 m (0.48 ft) in October 2009.
The seasonal pattern is modest but clear. The highest typical month is December at 0.27 m (0.88 ft), while the lowest typical month is June at 0.21 m (0.68 ft). The typical annual swing is 6.2 cm (2.4 in).
For anyone watching the water at the bridge, that means the brook usually sits within a fairly tight band, but it can still move outside that range in wet periods. December is the month to expect the higher end of the usual range; June is the month when levels are typically lowest.
No watershed is named for this station, so the record here is best read as a local gauge on this reach rather than as a summary of a larger basin. In temperate hydrology, spring peaks often track snowmelt or rainfall, and summer low water is common. Here, the monthly record shows the usual low-water stretch in June and a higher typical level in December.
For nearby landowners and anglers, the main takeaway is timing. The brook does not need a large shift to move from its typical summer low to its typical winter higher water. Small changes matter when you are judging access, bank wetness, or how much room there is under a crossing.
The hero number on this page is most useful when it is set beside the median for the same calendar day, not just the raw level. A single reading on its own does not tell you whether the brook is running high for this date, near normal, or low for the season. The day-matched median does.
That is why the page uses the station record rather than a simple stage number. It puts the current reading into the same seasonal frame as the rest of the archive from the Environment Agency.
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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