Waterlands
Alameda C Ab Div Dam nr Sunol Ca River
USGS · 11172945
ALAMEDA C AB DIV DAM NR SUNOL CA RIVER
USGS · 11172945LIVE

ALAMEDA C AB DIV DAM NR SUNOL CA

ALAMEDA COUNTY, CA37.4974°N, -121.7736°W Updated 16 min ago
FLOW RATE
1.03cfs
GAUGE HT
1.86ft
WATER TEMP
19°F
AIR TEMP
58°F
WIND
8mph SSE
FISH INDEX
81SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
1.03cfs 18.7% vs avg
Optimal band: 11 cfs
PERIOD HIGH
1.34cfs
PERIOD LOW
0.98cfs
RUNNABLE
0%
last 1 day in band

Gauge Height

1.86ft

Water Temperature

19.1°F
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

14.2in

≈ normal

14.23 in of precipitation so far this year — about average for this point in the season (normal 13.59 in).

YTD Total

14.2in

This year so far

Normal to Date

13.6in

30-yr average

Typical Range

5.8–22.1in

10th–90th pct YTD

Departure

+5%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.03" · normal 3.81" (0.8–7.7)
Jan
Feb: 4.97" · normal 3.93" (0.4–7.8)
Feb
Mar: 0.34" · normal 3.24" (0.5–6.5)
Mar
Apr: 5.28" · normal 1.63" (0.3–3.3)
Apr
May: 0.60" · normal 0.85" (0.1–1.5)
May
Jun: 0.02" (so far)· normal 0.18" (0.0–0.4)
Jun
Jul: normal 0.08" (0.0–0.1)
Jul
Aug: normal 0.10" (0.0–0.2)
Aug
Sep: normal 0.11" (0.0–0.3)
Sep
Oct: normal 0.91" (0.0–2.4)
Oct
Nov: normal 1.82" (0.4–3.7)
Nov
Dec: normal 3.34" (0.3–6.4)
Dec
Baseline 19912020 · Source: Open-Meteo08:16 AM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
85°
55°
WED
84°
56°
THU
85°
55°
FRI
77°
52°
SAT
67°
48°
SUN
81°
47°
MON
87°
50°
TIME
TUE
8
NOW
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
WED
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
THU
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
FRI
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SAT
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SUN
12
am
TEMP
hourly forecast
61°
mild
61°
66°
71°
75°
79°
82°
84°
85°
84°
83°
81°
78°
73°
68°
65°
62°
61°
60°
59°
58°
57°
56°
56°
57°
62°
65°
71°
75°
78°
82°
84°
84°
83°
82°
80°
77°
73°
67°
63°
60°
59°
58°
57°
57°
56°
55°
55°
59°
65°
70°
74°
78°
81°
83°
84°
85°
82°
76°
73°
71°
65°
58°
56°
55°
53°
52°
53°
52°
52°
52°
53°
56°
61°
65°
68°
71°
74°
77°
76°
75°
73°
73°
70°
66°
63°
59°
57°
56°
56°
55°
54°
53°
52°
52°
51°
52°
55°
57°
58°
64°
65°
66°
66°
67°
65°
63°
61°
58°
55°
52°
50°
48°
47°
WIND
mph · gust · dir
7mph S
G 9 mph
7
G9
S
7
G10
SSW
8
G10
SSW
9
G10
SW
10
G11
SSW
11
SSW
10
G11
SSW
10
SW
9
G10
SW
9
G10
SW
8
G9
SW
7
G9
SSW
5
G7
SSW
4
G7
SSW
6
G7
S
7
G8
S
7
G8
SSE
7
G8
SSE
7
G8
SSE
7
G8
S
7
G8
S
8
G9
SSE
8
G9
SSE
7
G10
S
7
G9
SSW
8
G9
SSW
9
SSW
10
G11
SSW
10
SSW
10
SW
10
SW
9
WSW
8
G9
WSW
8
G9
WSW
6
G8
WSW
4
G6
WSW
5
G6
SSW
7
S
6
S
7
S
7
S
6
S
6
SSW
6
SSW
6
SSW
6
S
6
SSW
5
G6
SSW
6
SW
7
WSW
7
WSW
8
WSW
8
WSW
9
WSW
9
WSW
11
W
10
G11
WSW
9
G10
WSW
8
G10
SW
8
G9
SW
7
G8
SW
7
SW
7
SSW
7
SSW
7
SSW
7
SSW
7
SSW
7
SSW
7
SSW
7
SSW
6
SSW
7
SW
7
SW
7
SW
8
SW
8
G10
WSW
9
G10
WSW
9
G12
WSW
10
G13
WSW
10
G14
WSW
9
G12
WSW
9
G14
WSW
9
G14
WSW
8
G13
WSW
7
G11
SW
7
SW
7
SW
6
G7
SW
6
G8
SW
6
G7
SW
6
G7
SW
6
G7
SW
6
G8
SW
6
G8
WSW
7
G9
WSW
7
G11
WSW
8
G13
WSW
9
G13
WSW
10
G14
WSW
11
G15
WSW
12
G15
WSW
12
G17
W
13
G16
W
13
G17
W
14
G19
W
13
G18
WSW
12
G18
WSW
11
G17
WSW
9
G15
SW
7
G12
SW
6
G8
SSW
5
S
5
S
PRECIP
chance %
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
6%
6%
6%
6%
6%
6%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
2%
clear
2%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
0%
0%
0%
0%
0%
0%
6%
5%
5%
7%
11%
12%
6%
11%
100%
16%
5%
11%
18%
100%
100%
100%
100%
100%
6%
35%
59%
16%
0%
11%
6%
8%
7%
6%
0%
10%
6%
5%
4%
25%
37%
54%
50%
41%
50%
77%
86%
70%
58%
100%
100%
38%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
5%
7%
7%
PRESSURE
hPa · trend
980
980982981981981981979977978977977977978978978978979979978
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
81
Temperature
Ideal
Wind
Light
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
05:47 AM
SUNSET
08:32 PM
14H 45M OF DAYLIGHT12H 16M REMAINING
MOON PHASE
First Quarter
57% illuminated

Station Location

37.4974, -121.7736
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-23 08:16 UTC
Site #11172945·USGS

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