Santa Ana River at Santa Ana CA
USGS Site No: 11078000 • Santa Ana River • Orange County, CA
Santa Ana River at Santa Ana CA on the Santa Ana River is currently at 0 cfs (Normal — 0th percentile for this date) . Gage height: 1.45 ft. This station is at or above flood stage.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 0 | Today: 0 cfs |
| 25th | Low threshold | 0 | |
| 50th (Median) | Normal (median) | 0 | |
| 75th | High threshold | 0 | |
| 95th | Very High threshold | 8 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 0 | — |
| May 27, 2026 | 0 | — |
| May 26, 2026 | 0 | — |
| May 25, 2026 | 0 | — |
| May 24, 2026 | 0 | — |
| May 23, 2026 | 0 | — |
| May 22, 2026 | 0 | — |
| May 21, 2026 | 0 | — |
| May 20, 2026 | 0 | — |
| May 19, 2026 | 0 | — |
| May 18, 2026 | 2 | — |
| May 17, 2026 | 3 | — |
| May 16, 2026 | 3 | — |
| May 15, 2026 | 1 | — |
| Apr 20, 2026 | 3 | — |
| Apr 19, 2026 | 3 | — |
| Apr 18, 2026 | 1 | — |
| Apr 17, 2026 | 0 | — |
| Apr 16, 2026 | 0 | — |
| Apr 15, 2026 | 0 | — |
| Apr 14, 2026 | 1 | — |
| Apr 13, 2026 | 7 | — |
| Apr 12, 2026 | 24 | — |
| Apr 11, 2026 | 1 | — |
| Apr 10, 2026 | 1 | — |
| Apr 9, 2026 | 3 | — |
| Apr 8, 2026 | 4 | — |
| Apr 7, 2026 | 0 | — |
| Apr 6, 2026 | 0 | — |
| Apr 5, 2026 | 0 | — |
Station Information
- USGS Site No
- 11078000
- State
- CA
- County
- Orange County
- Coordinates
- 33.7511, -117.9084
- Drainage Area
- 1,700 mi²
- Datum (ft)
- 66.2
- HUC Code
- 18070203
Flood Stage Thresholds
- Action Stage
- 10.4 ft
Recent Extremes
- Max discharge
-
491 cfsNov 15, 2025
- Min discharge
-
0 cfsMay 28, 2026
Computed from the local daily-values archive.
Nearby Gauges
-
Bonita C at Irvine CAHigh7.8 mi · 1 cfs
-
Agua Chinon Wash at Portola Springs Road near Irvine CANormal13.0 mi · 0 cfs
-
Santa Ana River below Prado Dam CANormal17.7 mi · 104 cfs
-
Arroyo Trabuco at San Juan Capistrano CANormal22.4 mi · 4 cfs
-
San Juan C at LA Novia St Branch at San Juan Capis CANormal22.8 mi · 0 cfs