Waterlands
Alameda C Bl Div Dam nr Sunol Ca River
USGS · 11172955
ALAMEDA C BL DIV DAM NR SUNOL CA RIVER
USGS · 11172955LIVE

ALAMEDA C BL DIV DAM NR SUNOL CA

ALAMEDA COUNTY, CA37.4986°N, -121.7794°W Updated 34 min ago
FLOW RATE
0.62cfs
GAUGE HT
4.48ft
WATER TEMP
19°F
AIR TEMP
57°F
WIND
5mph SW
FISH INDEX
75SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
0.62cfs 52.9% vs avg
Optimal band: 11 cfs
PERIOD HIGH
0.9cfs
PERIOD LOW
0.62cfs
RUNNABLE
0%
last 1 day in band

Gauge Height

4.48ft

Water Temperature

18.9°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-Meteo08:18 AM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
83°
55°
WED
83°
55°
THU
85°
55°
FRI
77°
52°
SAT
67°
48°
SUN
81°
48°
MON
87°
51°
TIME
TUE
10
NOW
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
1
am
TEMP
hourly forecast
69°
mild
69°
74°
77°
79°
81°
83°
83°
82°
81°
77°
73°
68°
65°
62°
61°
60°
59°
58°
57°
56°
55°
58°
61°
65°
69°
73°
77°
80°
82°
83°
82°
81°
80°
78°
73°
67°
63°
60°
59°
59°
58°
57°
56°
55°
55°
59°
65°
70°
74°
79°
81°
83°
84°
85°
82°
76°
73°
71°
65°
58°
56°
55°
53°
53°
53°
52°
53°
52°
53°
56°
61°
65°
69°
72°
74°
77°
77°
75°
74°
73°
70°
67°
63°
59°
57°
57°
56°
55°
54°
53°
52°
53°
52°
52°
55°
57°
59°
64°
65°
67°
67°
67°
65°
63°
61°
58°
55°
53°
50°
48°
48°
48°
WIND
mph · gust · dir
9mph SW
9
SW
10
G11
SW
10
G11
SW
11
G12
SW
10
G11
SW
9
G11
SW
10
G11
SW
9
G10
SW
8
G9
SW
7
G9
SW
6
G7
SW
4
G7
SSW
4
G7
SSW
4
G6
SSW
6
G8
SW
7
G9
SW
7
G9
WSW
7
G9
WSW
7
G9
WSW
7
G9
SW
7
G8
WSW
8
G10
SW
9
G10
SW
10
G11
SW
10
G11
SW
10
G11
SW
10
G11
SW
10
G11
SW
10
G11
WSW
10
G11
WSW
9
G10
WSW
9
G10
WSW
8
G9
WSW
6
G7
WSW
6
G7
SW
4
G6
SSW
5
SW
7
SSW
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
4
SSE
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%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
7%
7%
7%
7%
7%
7%
2%
2%
2%
2%
2%
2%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
1%
clear
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
2%
2%
2%
3%
4%
3%
5%
3%
2%
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%
5%
PRESSURE
hPa · trend
984
984984984983984983981980981980980980981980981981982981981
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
75
Temperature
Ideal
Wind
Light
Pressure
Rising — Slow
Moon Phase
Good
DAYLIGHT
SUNRISE
05:47 AM
SUNSET
08:32 PM
14H 45M OF DAYLIGHT10H 58M REMAINING
MOON PHASE
First Quarter
58% illuminated

Station Location

37.4986, -121.7794
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-23 09:34 UTC
Site #11172955·USGS

Create a free account to save favorites, set flow alerts, and track conditions