Western Flows

Alameda Creek Below Diversion Dam

Near Sunol, CA Stream Gauge USGS: 11172955 Provisional Data Last Updated: May 26, 09:44 PM PT

Current Flow

2.1 cfs
Falling

Water Temp

61.9 °F
Safe (< 65°F)

Expected Weather

Temp --°F
Wind -- mph
Rain Chance --%
Pressure -- hPa

Location

Basin: San Francisco Bay County: Alameda Elevation: 836 ft Drainage Area: 34.9 mi²
Flow is within the typical range for this time of year (25th–75th percentile, based on 15 years of USGS record).

System Insights

  • Did you know? One acre-foot (AF) of water is exactly what it sounds like: one acre of land covered in one foot of water, roughly 326,000 gallons.

Verify access, permits, and local conditions before entering any waterway.

Today's Weather

Forecast Details

Morning

At 6 AM: 49°F and Overcast, wind W at 10 mph. By 10 AM: 55°F and Overcast, wind W at 12 mph.

Afternoon/Evening

At 2 PM: 62°F and Overcast, wind W at 11 mph. By 6 PM: 59°F and Clear, wind W at 14 mph.

Overnight

Dropping from 52°F at 10 PM to 48°F by 4 AM. Conditions Mainly Clear with wind SW at 4 mph.

3-Day Outlook

🌔 Waxing Gibbous

Today, May 26

🌧️

62° / 49°

Chance of Rain: 14%
5:50 AM 8:18 PM

Wednesday, May 27

☁️

68° / 48°

Chance of Rain: 9%
5:49 AM 8:19 PM

Thursday, May 28

🌧️

70° / 50°

Chance of Rain: 45%
5:49 AM 8:19 PM

7-Day Flow History

Source: USGS

The current cfs of 2.06 CFS is running near the historical median of 2 CFS for this date, indicating average seasonal water levels.

Current (CFS)
Historical Median
Normal Range (p25–p75)

7-Day Water Temperature (°F)

Source: USGS
Current (°F)
Historical Median
68°F Threshold

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Glossary & Methodology

Cubic Feet per Second (CFS)

The standard measure for streamflow. One CFS is equal to one cubic foot of water flowing past a specific point in one second (about 7.48 gallons).

Acre-Foot (AF)

The volume of water needed to cover one acre of land to a depth of one foot. One acre-foot is exactly 325,851 gallons.

Snow Water Equivalent (SWE)

The amount of water contained within the snowpack. It can be thought of as the depth of water that would theoretically result if you melted the entire snowpack instantaneously.

Data Sources

Live metrics and historical medians are aggregated directly from the US Geological Survey (USGS), California Data Exchange Center (CDEC), and National Resources Conservation Service (NRCS). Daily flow statistics represent provisional records and are subject to agency revision.