WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for Ewelme Brook at Ewelme in England, United Kingdom, built from official government gauge data.
Ewelme Brook at Ewelme is a gauged river in England.
For more than 46 years of record, this brook has shown a small but usable seasonal range. The typical high point comes in April at 0.12 m (0.38 ft), while the typical low point comes in December at 0.08 m (0.25 ft). For a bank, culvert, or small crossing, that is a modest shift, but it is still enough to change the margin between a steady trickle and a tighter channel.
The record also shows the reach can move beyond its usual band. The highest level in the record is 0.2 m (0.64 ft) in March 2014, and the lowest is 0.01 m (0.02 ft) in November 1997. Those are the extremes that matter if you keep a footbridge, pump, or intake close to the waterline.
The typical annual swing is 4 cm (1.6 in), which is small enough that daily use will often look steady, but not so small that the brook can be ignored. April sits above December in the normal cycle, so spring is the season to watch for the higher run of water, while late autumn into early winter tends to be lower.
The record high in March 2014 stands well above the December typical level, and the record low in November 1997 sits below it. That tells you the brook can compress into a very low stage, then rise enough to change how a shallow reach behaves. If you fish here, those changes are the difference between a narrow slot and a broader seam.
The number on this page is easiest to use when you compare today’s level with the median for the same calendar day across the station’s record. That gives a cleaner read than raw elevation alone, because the same level can mean different things in April than in December.
This station is monitored by the Environment Agency. With 46 years on record, the day-to-day reading sits in a longer pattern that helps cottagers and anglers judge whether the brook is running near its usual band, or outside it.
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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