Petaluma River A Copland Pumping Station A Petaluma Flow Report
As of August 6, 2026, Petaluma River A Copland Pumping Station A Petaluma is flowing at 90 cfs, receding 24% over the past 24 hours. Source: USGS gauge #11459150, refreshed throughout the day.
Historical Data
Petaluma River A Copland Pumping Station A Petaluma at a glance
How Petaluma River A Copland Pumping Station A Petaluma is running right now, where it sits on the map, and the key gauge stats.
Petaluma River A Copland Pumping Station A Petaluma is flowing at 90 cfs, with the water sitting 3.54 ft at the gage. Flow is down 24% since yesterday as the gauge recedes.
This is USGS gauge #11459150 in California. Over the past 10 days the average has been 114 cfs, peaking at 197 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the California flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #11459150).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Petaluma River A Copland Pumping Station A Petaluma
It provides flow data for the Petaluma River and its tributaries, including Sonoma Creek and Adobe Creek. The station also monitors the seasonal trends of the river, which can vary greatly depending on rainfall and snowmelt. Additionally, the station plays a critical role in managing water resources for the region. One interesting fact about the hydrology of the Petaluma River is that it is a tidal river, meaning that the flow of the river is influenced by the tides of San Pablo Bay.
Nearby streamflow levels
Cross-check Petaluma River A Copland Pumping Station A Petaluma's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Petaluma River A Copland Pumping Station A Petaluma Ca | 90 cfs |
| Copeland Creek A Rohnert Park Ca | 2 cfs |
| Novato Creek A Novato Ca | 1 cfs |
| Laguna De Santa Rosa A Stony Pt Rd Near Cotati Ca | 0 cfs |
| Sonoma Creek A Agua Caliente Ca | 1 cfs |
| Nathanson Creek A Sonoma Ca | 0 cfs |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Petaluma River A Copland Pumping Station A Petaluma.
Nearby reservoirs
See all →
Boat launches
See all →
River runs
See all →
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Petaluma River A Copland Pumping Station A Petaluma in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Petaluma River A Copland Pumping Station A Petaluma crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Petaluma River A Copland Pumping Station A Petaluma
What is the Petaluma River A Copland Pumping Station A Petaluma flow rate right now?
As of August 6, 2026, Petaluma River A Copland Pumping Station A Petaluma is flowing at 90 cfs. The live value, gage height, and 24-hour trend are shown at the top of this page.
Is the Petaluma River A Copland Pumping Station A Petaluma running high or low right now?
Check the percent of median figure on this page: above 100% means Petaluma River A Copland Pumping Station A Petaluma is running higher than normal for the date, below 100% means lower. The 24-hour trend shows whether it's rising or falling.
Where does the streamflow data for Petaluma River A Copland Pumping Station A Petaluma come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 11459150. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Petaluma River A Copland Pumping Station A Petaluma rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Get the free Petaluma River A Copland Pumping Station A Petaluma report
Create a free account. It takes less than a minute.
- Flow alerts — know when this river hits your range
- Favorites — save the rivers you care about
- History & forecasts — plus the free iPhone app