Western Flows

Alameda Creek Below Welch Creek

Near Sunol USGS: 11173575 Provisional Data Last Updated: May 24, 09:56 PM PT

Current Flow

10.2 cfs
Falling

Water Temp

64.6 °F
Safe (< 65°F)

Expected Weather

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

Location

Basin: San Francisco Bay County: Alameda Elevation: 303 ft Drainage Area: 149.0 mi²

System Insights

  • Did you know? Cubic feet per second (cfs) measures volume over time. One cfs equals about 7.48 gallons of water flowing past a point every second.

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

Today's Weather

Forecast Details

Morning

At 6 AM: 52°F and Clear, wind W at 8 mph. By 10 AM: 62°F and Clear, wind W at 12 mph.

Afternoon/Evening

At 2 PM: 73°F and Clear, wind W at 12 mph. By 6 PM: 68°F and Clear, wind W at 14 mph.

Overnight

Dropping from 56°F at 10 PM to 51°F by 4 AM. Conditions Clear with wind SW at 6 mph.

3-Day Outlook

🌓 First Quarter

Today, May 24

☁️

73° / 52°

Chance of Rain: 1%
5:51 AM 8:17 PM

Monday, May 25

☁️

65° / 50°

Chance of Rain: 2%
5:50 AM 8:18 PM

Tuesday, May 26

☁️

64° / 50°

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

7-Day Flow History

Source: USGS

The current cfs of 10 CFS is running above the historical median of 8 CFS for this date, indicating higher-than-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.