San Joaquin River near Vernalis CA
Is San Joaquin River near Vernalis CA flooding right now?
San Joaquin River near Vernalis CA measured 6.88 ft on 2026-09-11 00:45:00 UTC. That observation was 22.1 ft below its 29 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
6.88 ft
Streamflow
500 cfs
Minor flooding here begins at 29 ft, with major flooding at 37.3 ft. The highest crest on record was 34.88 ft on Sun, Jan 5, 1997.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 24.5 ft | 17.6 ft below |
| Minor flood | 29 ft | 22.1 ft below |
| Moderate flood | 32 ft | 25.1 ft below |
| Major flood | 37.3 ft | 30.4 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 34.88 ft | 1997-01-05 |
| 34.55 ft | 1969-01-27 |
| 32.81 ft | 1950-12-09 |
| 32.71 ft | 1938-03-16 |
| 32.11 ft | 1938-02-12 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Stanislaus River a Ripon CA | 9.3 mi | Stanislaus County |
| Del Puerto C near Patterson CA | 13.4 mi | Stanislaus County |
| Grant Line Cn a Tracy Rd Bridge CA | 14.2 mi | San Joaquin County |
| Tuolumne River a Modesto CA | 15.8 mi | Stanislaus County |
| Old River near Delta Mendota Canal CA | 17.7 mi | San Joaquin 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.