RIVER GAUGE · SAN LORENZO CREEK (ALAMEDA)
San Lorenzo Creek (Alameda) above Hayward
Alameda County, California
Water level2.59 ft
Flow0 cfs
Last readingSep 16, 2026, 5:05 PM UTC (last recorded)
Action20.85 ft
Minor flood24.64 ft
Moderate flood29.64 ft
Major flood33 ft
The past week
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What floods at each level
- 33 ft
Major Flooding. Homes and local roadways inundated with several feet of water.
- 29.64 ft
Moderate Flooding. Homes and roadways adjacent to the creek in this location begin to flood.
- 24.64 ft
Minor Flooding. At 24.64 feet, flooding may have begun downstream at the San Lorenzo Creek near San Lorenzo stream gage. NWS will issue Flash Flood Warning if not already issued.
- 20.85 ft
Action Stage. At 20.85 feet the San Lorenzo Creek near San Lorenzo gage downstream is close to flooding. NWS will issue a Flash Flood Watch if not already issued.
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