Alameda C Flood Channel at Union City CA

USGS Site No: 11180700 • Alameda County, CA

Alameda C Flood Channel at Union City CA is currently at 67 cfs (Very High — 104th percentile for this date) . Gage height: 7.84 ft.

Reading from

67
CFS Discharge
7.84
Gage Height (ft)
Very High
Flow Condition
N/A
Flood Status

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
25th Low threshold 0
50th (Median) Normal (median) 3
75th High threshold 11
95th Very High threshold 36

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.

1.4k 691 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 51 —
May 27, 2026 13 —
May 26, 2026 9 —
May 25, 2026 9 —
May 24, 2026 9 —
May 23, 2026 11 —
May 22, 2026 14 —
May 21, 2026 14 —
May 20, 2026 15 —
May 19, 2026 20 —
May 18, 2026 19 —
May 17, 2026 17 —
May 16, 2026 17 —
May 15, 2026 19 —
Apr 20, 2026 38 —
Apr 19, 2026 10 —
Apr 18, 2026 10 —
Apr 17, 2026 24 —
Apr 16, 2026 39 —
Apr 15, 2026 46 —
Apr 14, 2026 76 —
Apr 13, 2026 131 —
Apr 12, 2026 180 —
Apr 11, 2026 85 —
Apr 10, 2026 38 —
Apr 9, 2026 12 —
Apr 8, 2026 11 —
Apr 7, 2026 11 —
Apr 6, 2026 12 —
Apr 5, 2026 13 —

Station Information

USGS Site No
11180700
State
CA
County
Alameda County
Coordinates
37.5858, -122.0483
Datum (ft)
6.5
HUC Code
18050004
View on USGS NWIS →

Recent Extremes

Max discharge
1,570 cfs
Feb 18, 2026
Min discharge
3 cfs
Oct 12, 2025

Computed from the local daily-values archive.

Nearby Gauges

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