Ventura River river
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Ventura River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Ventura River
All 1 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Ventura R Nr Ventura
CA
USGS 11118500
|
30 | 5.08 | 3.7 | 509% | 0 | 9,480 | 210 |
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
Ventura River
The Ventura River is a 16-mile-long river that flows through the Ojai Valley in Southern California. It was once the primary source of water for the Chumash people who lived in the area. The river is fed by a network of streams and creeks, and it flows into the Pacific Ocean. Two major reservoirs, the Casitas and Matilija, were constructed in the 1950s to store water for agricultural and municipal use. However, the Matilija Dam has become a controversial issue due to concerns about its safety and impact on the environment. The river is also used for recreational activities like fishing, swimming, and hiking. Agriculture in the area relies on the Ventura River for irrigation. The river's hydrology has been affected by droughts and climate change, leading to decreased water availability in recent years.
Recreation along the Ventura River
Fishing access and paddle runs Snoflo tracks within the watershed.
Track the Ventura River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Ventura River
Where does the data for the Ventura River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.