WaterLands
Alameda C Bl Welch C nr Sunol Ca River
USGS · 11173575
ALAMEDA C BL WELCH C NR SUNOL CA RIVER
USGS · 11173575LIVE

ALAMEDA C BL WELCH C NR SUNOL CA

ALAMEDA COUNTY, CA37.5405°N, -121.8563°W Updated 51 min ago
FLOW RATE
8.97cfs
GAUGE HT
11.43ft
WATER TEMP
15°F
AIR TEMP
62°F
WIND
10mph W
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
8.97cfs 26.6% vs avg
Optimal band: 810 cfs
PERIOD HIGH
9.37cfs
PERIOD LOW
8.59cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

11.43ft

Water Temperature

15.3°F
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

13.3in

≈ normal

13.32 in of precipitation so far this year — about average for this point in the season (normal 13.07 in).

YTD Total

13.3in

This year so far

Normal to Date

13.1in

30-yr average

Typical Range

5.8–21.8in

10th–90th pct YTD

Departure

+2%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 2.91" · normal 3.73" (0.8–7.6)
Jan
Feb: 4.90" · normal 3.80" (0.4–7.6)
Feb
Mar: 0.42" · normal 3.09" (0.5–6.4)
Mar
Apr: 4.50" · normal 1.57" (0.3–3.0)
Apr
May: 0.59" · normal 0.80" (0.1–1.5)
May
Jun: 0.00" (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 1.80" (0.4–3.7)
Nov
Dec: normal 3.29" (0.3–6.3)
Dec
Baseline 19912020 · Source: Open-Meteo03:21 PM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
84°
54°
SAT
71°
52°
SUN
80°
47°
MON
71°
50°
TUE
73°
51°
WED
82°
46°
THU
95°
57°
TIME
FRI
3
NOW
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
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
MON
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
TUE
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
WED
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
TEMP
hourly forecast
84°
mild
84°
82°
79°
74°
69°
65°
62°
60°
58°
57°
55°
54°
53°
52°
52°
52°
54°
55°
58°
61°
65°
68°
70°
71°
70°
68°
65°
63°
60°
57°
55°
53°
53°
52°
51°
50°
50°
49°
47°
47°
51°
58°
65°
69°
74°
77°
78°
80°
79°
78°
76°
71°
67°
61°
57°
55°
55°
54°
52°
52°
51°
51°
50°
50°
54°
58°
61°
65°
65°
62°
68°
70°
71°
69°
67°
64°
62°
61°
61°
61°
61°
61°
61°
61°
61°
61°
61°
60°
60°
61°
62°
63°
63°
66°
71°
73°
72°
71°
69°
67°
63°
58°
54°
52°
51°
50°
49°
49°
47°
46°
47°
50°
54°
WIND
mph · gust · dir
14mph W
G 15 mph
14
G15
W
14
G16
W
15
G19
W
15
G19
W
14
G18
WSW
13
G17
WSW
11
G16
WSW
11
G15
WSW
11
G16
WSW
11
G16
WSW
11
G18
WSW
12
G17
WSW
12
G18
WSW
12
G18
WSW
12
G18
WSW
12
G18
WSW
14
G19
WSW
14
G19
WSW
15
G19
WSW
15
G19
WSW
14
G17
WSW
15
G18
WSW
15
G18
WSW
15
G18
WSW
17
G20
W
18
G22
W
18
G22
WSW
17
G22
WSW
17
G22
WSW
14
G21
WSW
13
G20
WSW
12
G20
SW
11
G18
SW
10
G15
SW
9
G15
WSW
6
G12
WSW
8
G9
SW
6
SSW
5
S
5
SE
2
SSE
2
G5
NW
2
G5
NNW
4
G5
NNW
5
G6
NW
6
NW
7
WNW
8
W
8
W
8
WNW
7
G9
WNW
7
G10
WNW
6
G9
W
5
G7
WSW
4
SSW
4
SSW
5
SSW
5
S
5
S
5
G6
SSW
5
S
5
S
5
S
5
S
5
S
5
G6
SSW
4
G8
SW
4
G10
WSW
5
G10
W
4
G7
W
6
G10
W
6
G10
WNW
7
G11
WNW
6
G11
WNW
7
G10
WNW
5
G8
WNW
3
G7
WNW
2
G4
WSW
2
G3
W
2
G4
WSW
2
G4
SSW
2
G4
SW
2
G4
SSW
2
G4
SW
2
G4
SW
3
WSW
2
G3
SW
3
G4
W
2
G3
WSW
3
G4
WSW
3
G4
W
5
WNW
4
G5
WNW
5
W
7
W
11
WNW
11
WNW
10
WNW
8
G10
W
9
G11
W
8
G11
WSW
6
G9
SW
5
G6
SSW
6
S
6
S
6
S
6
S
5
S
5
SSE
4
SE
4
SE
2
G3
E
2
G5
NNE
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%
4%
4%
4%
4%
4%
4%
2%
2%
2%
2%
2%
2%
4%
4%
4%
4%
4%
4%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
2%
2%
3%
3%
27%
87%
91%
69%
100%
87%
1%
0%
0%
0%
0%
1%
1%
25%
13%
15%
1%
4%
3%
2%
0%
0%
0%
0%
0%
0%
0%
43%
11%
18%
100%
100%
100%
10%
53%
57%
89%
100%
17%
91%
100%
100%
100%
100%
77%
100%
100%
100%
98%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
57%
35%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
PRESSURE
hPa · trend
997
99799799899999999899899999799910001001100110011000100099910011000
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Ideal
Wind
Moderate
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
05:46 AM
SUNSET
08:25 PM
14H 39M OF DAYLIGHT5H 4M REMAINING
MOON PHASE
Waning Gibbous
73% illuminated

Station Location

37.5405, -121.8563
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-05 15:21 UTC
Site #11173575·USGS

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