San Lorenzo Creek (Alameda) above Don Castro Reservoir near Castro Valley, CA
River level and flood forecast · Alameda County
Normal5.0 ftas of Mon 8:20 PM
Flow: 0 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 4 PM. Forecasts change as rain falls and as upstream water arrives.
Highest crests on record
- 9.5 ft — January 24, 1983
- 8.73 ft — January 13, 1993
- 8.7 ft — January 4, 1982
- 8.33 ft — February 18, 1986
Recent crests: 8.73 ft (January 13, 1993) · 8.33 ft (February 18, 1986) · 9.5 ft (January 24, 1983) · 8.7 ft (January 4, 1982)
Up and down the river, and nearby
- DownstreamSan Lorenzo Creek (Alameda) above Hayward, CA
- Crow Creek near Hayward, CA
- Cull Creek above Cull Creek Reservoir near Castro Valley, CA
- Castro Valley Creek at Hayward, CA
- San Lorenzo Creek (Alameda) at San Lorenzo, CA
- San Ramon Creek at San Ramon, CA
- Dry Creek at Union City, CA
- Alamo Canal near Pleasanton, CA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (LSCC1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.