Laguna de Santa Rosa C near Sebastopol CA Water Level
Live river level, flow, historical records and forecast for Laguna de Santa Rosa C near Sebastopol CA in CA, United States, built from official government gauge data.
- Location CA, United States
- Watershed russian
- Primary gauge 11465750 (USGS)
About Laguna de Santa Rosa C near Sebastopol CA
The Laguna de Santa Rosa C near Sebastopol CA is in the Russian watershed in California.
Season by season
This station fits a wet-winter, dry-summer pattern. January is the typical high month at 57.36 ft (17.48 m), while September is the typical low month at 54.73 ft (16.68 m). That 31.5 in (79.9 cm) annual swing is what docks, pumps, and low crossings have to handle through the year.
For people watching the water, the practical message is simple: winter brings the higher water, and late summer tends to be the shallowest stretch. If you launch, draw water, or leave gear near the edge, those month-to-month changes matter.
Records and rises
The record high is 73.6 ft (22.43 m) in February 2019. The record low is 53.21 ft (16.22 m) in September 2014.
Those two marks show the range this station has already seen in its 28 years on record. For a shoreline user, that spread is the difference between ordinary high water and a level that can reach well beyond the typical seasonal band. For an angler, it is a reminder that access points and cover can change a lot from one year to the next.
No fastest 24-hour rise is available here, so there is no station-specific warning-time number to quote.
Reading the hero number
The number on the page is most useful when you compare today’s reading with the median for this calendar day across the station record, not with raw elevation alone. A level by itself tells you where the water sits right now; the day-of-year median tells you whether it is ordinary for this time of year at this USGS station.
That context matters because the Laguna de Santa Rosa C near Sebastopol CA has more than 28 years of record. A reading that looks high in late summer may be ordinary in winter, and a reading that looks low in winter may still be typical 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.
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
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.
How every number is computed - About the platform
