Alameda C Flood Channel A Union City Ca River

USGS · 11180700

ALAMEDA C FLOOD CHANNEL A UNION CITY CA RIVER

USGS · 11180700LIVE

ALAMEDA C FLOOD CHANNEL A UNION CITY CA

UNION CITY, CA37.5858°N, -122.0483°W Updated 57 min ago

FLOW RATE

8.47cfs

GAUGE HT

6.78ft

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

8.47cfs 19.5% vs avg

Optimal band: 8–10 cfs

PERIOD HIGH

17.8cfs

PERIOD LOW

7.61cfs

RUNNABLE

66%

last 1 day in band

Gauge Height

6.78ft

Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

14.5in

≈ normal

14.49 in of precipitation so far this year — about average for this point in the season (normal 13.23 in).

YTD Total

14.5in

This year so far

Normal to Date

13.2in

30-yr average

Typical Range

6.0–21.6in

10th–90th pct YTD

Departure

+10%

vs 30-yr normal

By Month

This year

Typical range

Normal

Jan: 3.40" · normal 3.69" (0.8–7.7)

Jan

Feb: 4.88" · normal 3.85" (0.4–7.6)

Feb

Mar: 0.54" · normal 3.03" (0.5–5.9)

Mar

Apr: 5.01" · normal 1.69" (0.3–3.3)

Apr

May: 0.54" · normal 0.78" (0.0–1.6)

May

Jun: 0.11" · normal 0.16" (0.0–0.4)

Jun

Jul: 0.02" (so far)· normal 0.04" (0.0–0.1)

Jul

Aug: normal 0.04" (0.0–0.1)

Aug

Sep: normal 0.09" (0.0–0.2)

Sep

Oct: normal 0.91" (0.0–2.6)

Oct

Nov: normal 1.81" (0.5–3.3)

Nov

Dec: normal 3.35" (0.2–6.3)

Dec

Baseline 1991–2020 · Source: Open-Meteo23:57 UTC

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Station Location

37.5858, -122.0483

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DATA · USGS · NOAA · NWSUPDATED 2026-07-12 23:00 UTC

Site #11180700·USGS

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