Mississippi River at Appleton Water Level
Live river level, flow, historical records and forecast for Mississippi River at Appleton in Canada, ON, Canada, built from official government gauge data.
- Location Canada, ON, Canada
- Watershed central ottawa mississippi
- Primary gauge 02KF006 (Water Survey of Canada)
About Mississippi River at Appleton
Mississippi River at Appleton - a key flow point in the Ottawa-Mississippi watershed.
The Mississippi River at Appleton is a significant segment of the expansive Central Ottawa - Mississippi watershed in Ontario. This river provides vital water flow and condition data for local users, including agriculture, recreation, and environmental monitoring. The river, along with its peers such as Bennett Lake, Dalhousie Lake, and the Ottawa River at Britannia, forms an integral part of the regional hydrology.
The watershed context
Draining roughly 2,930 square kilometres above the station, the Mississippi River at Appleton is a pivotal area for understanding the seasonal rhythms typical of the region. The hydrology here is predominantly driven by snowmelt, with a spring freshet occurring from late April to May, which contributes significantly to water levels. As summer approaches, natural drawdown occurs from July to September due to evaporation and reduced inflow. This seasonal pattern is essential for local ecosystems and water management alike, highlighting the dynamic nature of water flow in this area.
Why the data matters here
The operating agency for water data at this station is the Water Survey of Canada. Today's water level reading at the Mississippi River at Appleton can be compared to the historical median for this calendar day over the past 50 years, providing context and understanding beyond mere elevation figures. This comparison allows cottagers, farmers, and anglers to gauge current conditions and make informed decisions about their activities, whether itupon fishing, irrigation, or flood management.
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 17,900+ lakes and rivers
Real-time water levels, forecasts, and alerts for lakes and rivers in a growing number of countries. Built on official government data.
Nibi Metrics tracks more than 17,900 gauged lakes and rivers in a growing number of countries, reading directly from official federal monitoring networks: the Water Survey of Canada, the United States Geological Survey, Quebec's provincial hydrometric network, the Environment Agency for England, the Scottish Environment Protection Agency, Natural Resources Wales, the Office of Public Works in Ireland (waterlevel.ie), the Norwegian Water Resources and Energy Directorate (NVE), the State of Queensland's water monitoring network, and on the Great Lakes the Canadian Hydrographic Service and NOAA. 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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For five years, spring 2019 was the mark every Lake Muskoka decision answered to. In April 2026 the lake went two centimeters higher - and the official books have not caught up yet.
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The science of snow water equivalent and why it drives the season ahead.
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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
