Matanzas C at Santa Rosa CA

USGS Site No: 11466170 • Sonoma County, CA

Matanzas C at Santa Rosa CA is currently at 3 cfs (Unknown) . Gage height: 155.46 ft.

Reading from

3
CFS Discharge
155.46
Gage Height (ft)
Unknown
Flow Condition
Normal
Flood Status

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.

514 257 0 cfs Mar 22 Apr 20
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
Apr 20, 2026 36 —
Apr 19, 2026 2 —
Apr 18, 2026 2 —
Apr 17, 2026 3 —
Apr 16, 2026 3 —
Apr 15, 2026 4 —
Apr 14, 2026 5 —
Apr 13, 2026 9 —
Apr 12, 2026 35 —
Apr 11, 2026 28 —
Apr 10, 2026 20 —
Apr 9, 2026 1 —
Apr 8, 2026 1 —
Apr 7, 2026 1 —
Apr 6, 2026 1 —
Apr 5, 2026 1 —
Apr 4, 2026 1 —
Apr 3, 2026 2 —
Apr 2, 2026 2 —
Apr 1, 2026 3 —
Mar 31, 2026 9 —
Mar 30, 2026 1 —
Mar 29, 2026 2 —
Mar 28, 2026 2 —
Mar 27, 2026 2 —
Mar 26, 2026 2 —
Mar 25, 2026 2 —
Mar 24, 2026 2 —
Mar 23, 2026 2 —
Mar 22, 2026 2 —

Station Information

USGS Site No
11466170
State
CA
County
Sonoma County
Coordinates
38.4388, -122.7024
Drainage Area
21 mi²
Datum (ft)
2.5
HUC Code
18010110
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
171.0 ft
Flood Stage
173.3 ft
Moderate Flood
174.5 ft
Major Flood
176.0 ft

Currently 17.84 ft below flood stage.

Recent Extremes

Max discharge
334 cfs
Jan 5, 2026
Min discharge
0 cfs
Oct 23, 2025
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges

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