Mark West C near Mirabel Heights CA
USGS Site No: 11466800 • Sonoma County, CA
Mark West C near Mirabel Heights CA is currently at 40 cfs (High — 75th percentile for this date) . Gage height: 40.04 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | |
| 25th | Low threshold | 1 | |
| 50th (Median) | Normal (median) | 5 | |
| 75th | High threshold | 15 | |
| 95th | Very High threshold | 1,240 | Today: 40 cfs |
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 | 48 | — |
| May 27, 2026 | 24 | — |
| May 26, 2026 | 25 | — |
| May 25, 2026 | 25 | — |
| May 24, 2026 | 25 | — |
| May 23, 2026 | 25 | — |
| May 22, 2026 | 26 | — |
| May 21, 2026 | 27 | — |
| May 20, 2026 | 28 | — |
| May 19, 2026 | 29 | — |
| May 18, 2026 | 32 | — |
| May 17, 2026 | 35 | — |
| May 16, 2026 | 38 | — |
| May 15, 2026 | 42 | — |
| Apr 20, 2026 | 209 | — |
| Apr 19, 2026 | 112 | — |
| Apr 18, 2026 | 123 | — |
| Apr 17, 2026 | 141 | — |
| Apr 16, 2026 | 172 | — |
| Apr 15, 2026 | 216 | — |
| Apr 14, 2026 | 267 | — |
| Apr 13, 2026 | 323 | — |
| Apr 12, 2026 | 340 | — |
| Apr 11, 2026 | 195 | — |
| Apr 10, 2026 | 121 | — |
| Apr 9, 2026 | 40 | — |
| Apr 8, 2026 | 42 | — |
| Apr 7, 2026 | 43 | — |
| Apr 6, 2026 | 45 | — |
| Apr 5, 2026 | 47 | — |
Station Information
- USGS Site No
- 11466800
- State
- CA
- County
- Sonoma County
- Coordinates
- 38.4940, -122.8533
- Drainage Area
- 251 mi²
- Datum (ft)
- 2.3
- HUC Code
- 18010110
Flood Stage Thresholds
- Action Stage
- 50.5 ft
- Flood Stage
- 55.0 ft
- Moderate Flood
- 59.0 ft
- Major Flood
- 65.0 ft
Currently 14.96 ft below flood stage.
Recent Extremes
- Max discharge
-
2,990 cfsJan 6, 2026
- Min discharge
-
0 cfsSep 2, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
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Russian River near Windsor CANormal1.6 mi · 267 cfs
-
Russian River at Hacienda Bridge near Guerneville CANormal4.1 mi · 228 cfs
-
Laguna DE Santa Rosa C near Sebastopol CAHigh4.9 mi · 4 cfs
-
Dry C near Mouth near Healdsburg CANormal6.5 mi · 81 cfs
-
Russian River near Healdsburg CANormal8.3 mi · 189 cfs