WHAT'S HAPPENING NOW
—— ft above typical
Finding the top signal on the water…
Live river level, flow, historical records and forecast for Chassahowitzka R at Mouth near Chassahowitzka FL in FL, United States, built from official government gauge data.
The Chassahowitzka River at mouth near Chassahowitzka FL is a gauged river in the Crystal-Pithlachascotee watershed, Florida.
September is the usual high-water month here, with a typical level of 0.52 ft (0.16 m). January is the usual low-water month, at -0.27 ft (-0.08 m). That seasonal range is modest on paper, but it still matters at a dock, a launch, or a shallow intake because the water stays near the same general band through the year rather than swinging hard.
The station’s typical annual swing is 9.4 in (24 cm). On a small river mouth reach, that is enough to change how long mud, vegetation, and shallow edges sit at the surface. For anyone fishing, the practical point is that the water can look familiar while still changing enough to shift edge access and boat clearance.
The regional pattern fits the site’s calendar: June through September is the wet season, while winter and spring are the dry-season low-flow period. That lines up with September as the highest month and January as the lowest month in the record.
The highest level in the station record is 3.76 ft (1.15 m), reached in September 2024. The lowest is -2.81 ft (-0.86 m), reached in May 2009. Those two marks show the reach has seen both a strong wet-season crest and a deep low-water stage.
For people living or fishing here, the record high is the level to keep in mind when planning around low banks, ramps, and any gear left close to the water. The record low is the other edge of the envelope: it tells you how far the water has dropped when access gets tight and shoals become more exposed.
This station has 19 years on record, so the record range and the monthly normals are based on a modest but useful span of observations.
This page’s hero number is today’s reading at the station, set against the median for this calendar day across the 19 years on record. That comparison is more useful than raw elevation because it tells you whether the river is running high or low for this date, not just where it sits above a datum.
The station is run by the USGS. For this river mouth reach, that day-by-day context is the best quick check for cottagers, anglers, and anyone watching for water that is drifting away from the usual seasonal pattern.
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.
Field notes and explainers from the Nibi desk - how to read a staff gauge, what a 100-year flood actually means, how snowpack becomes summer water.
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.
Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
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.