WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for Cherry C below Dion R Holm PH near Mather CA in CA, United States, built from official government gauge data.
Cherry C below Dion R Holm PH near Mather CA is in the Upper Tuolumne watershed in California.
The seasonal pattern is steady enough to matter for docks, intakes, and fish habitat. The highest typical month is May at 9.08 ft (2.77 m), and the lowest typical month is October at 6.48 ft (1.98 m). That typical annual swing is 31.2 in (79.3 cm), so the creek moves enough across the year that a fixed setup needs some room.
For people using the water, spring is the time to watch for the higher end of the yearly cycle, while late summer into fall is when levels sit lower. That is the rhythm here on this reach, and it is the one that sets the baseline for most day-to-day decisions.
The record high is 15.11 ft (4.61 m), set in January 2017. The record low is 5.36 ft (1.63 m), set in January 2014. Those two marks show the range this station has seen over more than 50 years of record.
I do not have a fastest 24-hour rise value for this station, so there is nothing to quote there. Even so, the record range tells you the main point: this creek can sit near its seasonal low in one part of the year and reach a much higher stage in another. For anyone with a pump intake, low dock, or bank access point, that spread is the part to plan around.
The number shown on this page is most useful when it is compared with the median for the same calendar day across the station record. That is better than raw elevation alone, because a stage reading means more when you know whether it is high or low for this date.
This station is a USGS site, and the comparison is grounded in more than 50 years on record. That gives today’s reading context: not just how high the water is, but how it sits against the creek’s usual pattern for this day.
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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