Western Flows

Alameda Creek Above Diversion Dam

Near Sunol, CA Stream Gauge USGS: 11172945 Provisional Data Last Updated: May 26, 08:22 PM PT

Current Flow

2.8 cfs
Falling

Water Temp

61.5 °F
Safe (< 65°F)

Expected Weather

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

Location

Basin: San Francisco Bay County: Alameda Elevation: 909 ft Drainage Area: 33.3 mi²

System Insights

  • Did you know? A snow pillow measures snow water equivalent (SWE) by weighing the snowpack resting on top of it.

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

Today's Weather

Forecast Details

Morning

At 6 AM: 50°F and Light Drizzle, wind W at 9 mph. By 10 AM: 54°F and Overcast, wind W at 11 mph.

Afternoon/Evening

At 2 PM: 60°F and Overcast, wind W at 11 mph. By 6 PM: 58°F and Clear, wind W at 12 mph.

Overnight

Dropping from 52°F at 10 PM to 49°F by 4 AM. Conditions Overcast with wind SE at 3 mph.

3-Day Outlook

🌔 Waxing Gibbous

Today, May 26

🌧️

60° / 49°

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

Wednesday, May 27

🌫️

67° / 49°

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 2.77 CFS is running near the historical median of 3 CFS for this date, indicating average seasonal water levels.

Current (CFS)
Historical Median

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.