San Gregorio C a San Gregorio CA
Is San Gregorio C a San Gregorio CA flooding right now?
San Gregorio C a San Gregorio CA measured 3.73 ft on 2026-10-27 19:15:00 UTC. That observation was 14.0 ft below its 17.7 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
3.73 ft
Streamflow
2 cfs
Minor flooding here begins at 17.7 ft, with major flooding at 25 ft.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 15 ft | 11.3 ft below |
| Minor flood | 17.7 ft | 14.0 ft below |
| Moderate flood | 21 ft | 17.3 ft below |
| Major flood | 25 ft | 21.3 ft below |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Pescadero C near Pescadero CA | 5.5 mi | San Mateo County |
| Butano C near Pescadero CA | 6.4 mi | San Mateo County |
| Pilarcitos C a Half Moon Bay CA | 10.1 mi | San Mateo County |
| San Francisquito C a Stanford University CA | 12.7 mi | Santa Clara County |
| Pilarcitos C below Stone Dam near Hillsborough CA | 13.7 mi | San Mateo County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.