Nathanson Creek A Sonoma flow report
As of July 15, 2026, Nathanson Creek A Sonoma is flowing at 0 cfs with a gage height of 0.87 ft, receding 17% over the past 24 hours. Source: USGS gauge #11458600, refreshed throughout the day.
Historical Data
Nathanson Creek A Sonoma at a glance
How Nathanson Creek A Sonoma is running right now, where it sits on the map, and the key gauge stats.
Nathanson Creek A Sonoma is flowing at 0 cfs, with the water sitting 0.87 ft at the gage. Flow is down 17% since yesterday as the gauge recedes.
This is USGS gauge #11458600 in California. Over the past 10 days the average has been 2 cfs, peaking at 12 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the California flow report.
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.
Nathanson Creek A Sonoma
The Sonoma Creek is a primary source of drinking water for the city of Sonoma, and the Nathanson Creek also provides water to local vineyards. The streamgauge records seasonal trends, with the highest flow occurring during the winter and spring months due to increased precipitation. There are no major dams on the Nathanson Creek. Interestingly, the Nathanson Creek is named after a local family who owned a dairy farm in the area. The streamgauge provides important data to help manage water resources in the region.
Nearby streamflow levels
Cross-check Nathanson Creek A Sonoma's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Nathanson C A Sonoma Ca | 0 cfs |
| Sonoma C A Agua Caliente Ca | 2 cfs |
| Napa R Nr Napa Ca | 4 cfs |
| Petaluma R A Copland Pumping Station A Petaluma Ca | 90 cfs |
| Sonoma Creek A Kenwood Ca | 0 cfs |
| Novato C A Novato Ca | 1 cfs |
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 Nathanson Creek A Sonoma in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Nathanson Creek A Sonoma crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Nathanson Creek A Sonoma
Where does the streamflow data for Nathanson Creek A Sonoma come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 11458600. 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 Nathanson Creek A Sonoma 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.
Access the free Nathanson Creek A Sonoma report
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