Pymmes Brook at New Barnet Water Level

Live river level, flow, historical records and forecast for Pymmes Brook at New Barnet in England, United Kingdom, built from official government gauge data.

About Pymmes Brook at New Barnet

Pymmes Brook at New Barnet is a gauged river in England.

What the record shows

This station has 20 years on record. The highest level in that span was 0.62 m (2.04 ft) in July 2021, and the lowest was 0.07 m (0.23 ft) in September 2013. That gap matters for anyone watching a footbridge, bank, or outfall: this brook can sit low for long stretches, then reach a much higher mark than its quiet-day level.

The seasonal pattern is narrow. The highest typical month is January at 0.15 m (0.5 ft), while the lowest typical month is September at 0.13 m (0.44 ft). The typical annual swing is 1.7 cm (0.7 in), which says the usual day-to-day range is small even though the record extremes are much wider.

For cottagers, anglers, and anyone checking access after rain, that means the brook’s ordinary level changes gently through the year, but the record tells you there is still room for sharp departures from the usual band.

The watershed

No watershed name is given for this page, so the station itself is the frame of reference. The seasonal rhythm is the one to watch: a higher January level and a lower September level fit a temperate river with spring and winter recharge, then summer low water.

Reading the hero number

The hero number on this page is today’s reading set against the median for the same calendar day across the station record. That is more useful than raw height alone, because a level that looks ordinary in January may be high for September.

The gauge is published by the Environment Agency, and this station’s 20-year record gives the comparison a useful local baseline. If today sits above its calendar-day median, the brook is running on the high side for the date; if it sits below, it is running light for the season.

How this page is built

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.

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Nibi Metrics - live water levels, flow, and forecasts for lakes and rivers across Canada, the US and the UK

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.

What you can see for any monitored lake or river

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.

Alerts that watch the water for you

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.

Where Nibi comes from

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.

Coverage

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.

Free forever, funded by members

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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