Pomme de Terre Lake near Hermitage Water Level
Live lake level, flow, historical records and forecast for Pomme de Terre Lake near Hermitage in MO, United States, built from official government gauge data.
- Location MO, United States
- Watershed pomme de terre
- Primary gauge 06921325 (USGS)
About Pomme de Terre Lake near Hermitage
Pomme de Terre Lake is in the Pomme De Terre watershed in Missouri.
Season by season
The lake’s typical high point comes in May at 843.08 ft (256.97 m), and its typical low point comes in October at 839.15 ft (255.77 m). That seasonal swing is 3.9 ft (1.2 m), so shoreline access, floating docks, and shallow launch ramps can feel that change over the course of a year.
For people using the lake, the main pattern is simple: late spring tends to sit higher than fall, but the spread is not large compared with many reservoirs. Rainfall-driven flooding can still happen in any season across this region, so a wet spell is worth watching even outside spring.
Records and rises
The highest level in the record is 864.64 ft (263.54 m) in June 2019. The lowest is 833.91 ft (254.18 m) in October 2010. Those two marks show the range this lake has already seen at the station, and they are the clearest guide to how far conditions can move beyond the usual seasonal pattern.
There is no fastest 24-hour rise reported here, so I cannot give a warning-time figure from the record. The gauge has 19 years on record, which is enough to show the main seasonal shape and the outer bounds, but not enough to replace watching short-term changes during a wet period.
Reading the hero number
This USGS page is best read by comparing today’s water level with the median for this calendar day across the station record, not by looking at elevation alone. Raw level on its own says less than where it stands relative to what is normal for this date.
The station is USGS and has 19 years on record. The catchment above the station is 611 sq mi (1583 km2), which is the drainage area feeding this gauge, not the watershed as a whole.
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.
How Nibi Metrics works · Water stories
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.
Water Stories
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The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.
One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.
How every number is computed - About the platform
