San Joaquin River at Patterson
Critical Stages
48' - Action
54.7' - Flood
57.3' - Moderate
58.3' - Major
Latest Observation
Updated: 10:00 AM PST 12/10/25
Status: No Flooding
Stage: 31.64 ft
Flow: 0.627 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 12 PM 12/10 | 31.64 | 0.627 |
| 1 PM 12/10 | 31.64 | 0.627 |
| 2 PM 12/10 | 31.64 | 0.627 |
| 3 PM 12/10 | 31.64 | 0.627 |
| 4 PM 12/10 | 31.64 | 0.627 |
| 5 PM 12/10 | 31.64 | 0.627 |
| 6 PM 12/10 | 31.64 | 0.627 |
| 7 PM 12/10 | 31.64 | 0.627 |
| 8 PM 12/10 | 31.63 | 0.624 |
| 9 PM 12/10 | 31.63 | 0.624 |
| 10 PM 12/10 | 31.63 | 0.624 |
| 11 PM 12/10 | 31.63 | 0.624 |
| 12 AM 12/11 | 31.63 | 0.624 |
| 1 AM 12/11 | 31.63 | 0.624 |
| 2 AM 12/11 | 31.62 | 0.622 |
| 3 AM 12/11 | 31.62 | 0.622 |
| 4 AM 12/11 | 31.62 | 0.622 |
| 5 AM 12/11 | 31.62 | 0.622 |
| 6 AM 12/11 | 31.62 | 0.622 |
| 7 AM 12/11 | 31.62 | 0.622 |
| 8 AM 12/11 | 31.61 | 0.619 |
| 9 AM 12/11 | 31.61 | 0.619 |
| 10 AM 12/11 | 31.61 | 0.619 |
| 11 AM 12/11 | 31.61 | 0.619 |
| 12 PM 12/11 | 31.61 | 0.619 |
| 1 PM 12/11 | 31.61 | 0.619 |
| 2 PM 12/11 | 31.61 | 0.619 |
| 3 PM 12/11 | 31.61 | 0.619 |
| 4 PM 12/11 | 31.61 | 0.619 |
| 5 PM 12/11 | 31.6 | 0.616 |
| 6 PM 12/11 | 31.6 | 0.616 |
| 7 PM 12/11 | 31.6 | 0.616 |
| 8 PM 12/11 | 31.6 | 0.616 |
| 9 PM 12/11 | 31.6 | 0.616 |
| 10 PM 12/11 | 31.6 | 0.616 |
| 11 PM 12/11 | 31.6 | 0.616 |
| 12 AM 12/12 | 31.59 | 0.613 |
| 1 AM 12/12 | 31.59 | 0.613 |
| 2 AM 12/12 | 31.59 | 0.613 |
| 3 AM 12/12 | 31.59 | 0.613 |
| 4 AM 12/12 | 31.59 | 0.613 |
| 5 AM 12/12 | 31.59 | 0.613 |
| 6 AM 12/12 | 31.59 | 0.613 |
| 7 AM 12/12 | 31.58 | 0.61 |
| 8 AM 12/12 | 31.58 | 0.61 |
| 9 AM 12/12 | 31.58 | 0.61 |
| 10 AM 12/12 | 31.58 | 0.61 |
| 11 AM 12/12 | 31.58 | 0.61 |
| 12 PM 12/12 | 31.57 | 0.607 |
| 1 PM 12/12 | 31.57 | 0.607 |
| 2 PM 12/12 | 31.57 | 0.607 |
| 3 PM 12/12 | 31.57 | 0.607 |
| 4 PM 12/12 | 31.57 | 0.607 |
| 5 PM 12/12 | 31.57 | 0.607 |
| 6 PM 12/12 | 31.56 | 0.604 |
| 7 PM 12/12 | 31.56 | 0.604 |
| 8 PM 12/12 | 31.56 | 0.604 |
| 9 PM 12/12 | 31.56 | 0.604 |
| 10 PM 12/12 | 31.56 | 0.604 |
| 11 PM 12/12 | 31.55 | 0.601 |
| 12 AM 12/13 | 31.55 | 0.601 |
| 1 AM 12/13 | 31.55 | 0.601 |
| 2 AM 12/13 | 31.55 | 0.601 |
| 3 AM 12/13 | 31.55 | 0.601 |
| 4 AM 12/13 | 31.54 | 0.598 |
| 5 AM 12/13 | 31.54 | 0.598 |
| 6 AM 12/13 | 31.54 | 0.598 |
| 7 AM 12/13 | 31.54 | 0.598 |
| 8 AM 12/13 | 31.54 | 0.598 |
| 9 AM 12/13 | 31.53 | 0.595 |
| 10 AM 12/13 | 31.53 | 0.595 |
| 11 AM 12/13 | 31.53 | 0.595 |
| 12 PM 12/13 | 31.53 | 0.595 |
| 1 PM 12/13 | 31.52 | 0.593 |
| 2 PM 12/13 | 31.52 | 0.593 |
| 3 PM 12/13 | 31.52 | 0.593 |
| 4 PM 12/13 | 31.52 | 0.593 |
| 5 PM 12/13 | 31.51 | 0.59 |
| 6 PM 12/13 | 31.51 | 0.59 |
| 7 PM 12/13 | 31.51 | 0.59 |
| 8 PM 12/13 | 31.51 | 0.59 |
| 9 PM 12/13 | 31.51 | 0.59 |
| 10 PM 12/13 | 31.5 | 0.587 |
| 11 PM 12/13 | 31.5 | 0.587 |
| 12 AM 12/14 | 31.5 | 0.587 |
| 1 AM 12/14 | 31.5 | 0.587 |
| 2 AM 12/14 | 31.5 | 0.587 |
| 3 AM 12/14 | 31.49 | 0.584 |
| 4 AM 12/14 | 31.49 | 0.584 |
| 5 AM 12/14 | 31.49 | 0.584 |
| 6 AM 12/14 | 31.49 | 0.584 |
| 7 AM 12/14 | 31.48 | 0.581 |
| 8 AM 12/14 | 31.48 | 0.581 |
| 9 AM 12/14 | 31.48 | 0.581 |
| 10 AM 12/14 | 31.48 | 0.581 |
| 11 AM 12/14 | 31.48 | 0.581 |
| 12 PM 12/14 | 31.47 | 0.578 |
| 1 PM 12/14 | 31.47 | 0.578 |
| 2 PM 12/14 | 31.47 | 0.578 |
| 3 PM 12/14 | 31.47 | 0.578 |
| 4 PM 12/14 | 31.47 | 0.578 |
| 5 PM 12/14 | 31.46 | 0.575 |
| 6 PM 12/14 | 31.46 | 0.575 |
| 7 PM 12/14 | 31.46 | 0.575 |
| 8 PM 12/14 | 31.46 | 0.575 |
| 9 PM 12/14 | 31.45 | 0.573 |
| 10 PM 12/14 | 31.45 | 0.573 |
| 11 PM 12/14 | 31.45 | 0.573 |
| 12 AM 12/15 | 31.45 | 0.573 |
| 1 AM 12/15 | 31.45 | 0.573 |
| 2 AM 12/15 | 31.44 | 0.57 |
| 3 AM 12/15 | 31.44 | 0.57 |
| 4 AM 12/15 | 31.44 | 0.57 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10:00 AM 12/10 | 31.64 | 0.627 |
| 9:45 AM 12/10 | 31.65 | 0.63 |
| 9:30 AM 12/10 | 31.65 | 0.63 |
| 9:15 AM 12/10 | 31.65 | 0.63 |
| 9:00 AM 12/10 | 31.65 | 0.63 |
| 8:45 AM 12/10 | 31.65 | 0.63 |
| 8:30 AM 12/10 | 31.65 | 0.63 |
| 8:15 AM 12/10 | 31.65 | 0.63 |
| 8:00 AM 12/10 | 31.65 | 0.63 |
| 7:45 AM 12/10 | 31.65 | 0.63 |
| 7:30 AM 12/10 | 31.65 | 0.63 |
| 7:15 AM 12/10 | 31.65 | 0.63 |
| 7:00 AM 12/10 | 31.65 | 0.63 |
| 6:45 AM 12/10 | 31.65 | 0.63 |
| 6:30 AM 12/10 | 31.65 | 0.63 |
| 6:15 AM 12/10 | 31.65 | 0.63 |
| 6:00 AM 12/10 | 31.65 | 0.63 |
| 5:45 AM 12/10 | 31.65 | 0.63 |
| 5:30 AM 12/10 | 31.65 | 0.63 |
| 5:15 AM 12/10 | 31.66 | 0.633 |
| 5:00 AM 12/10 | 31.66 | 0.633 |
| 4:45 AM 12/10 | 31.65 | 0.63 |
| 4:30 AM 12/10 | 31.66 | 0.633 |
| 4:15 AM 12/10 | 31.66 | 0.633 |
| 4:00 AM 12/10 | 31.65 | 0.63 |
| 3:45 AM 12/10 | 31.65 | 0.63 |
| 3:30 AM 12/10 | 31.66 | 0.633 |
| 3:15 AM 12/10 | 31.65 | 0.63 |
| 3:00 AM 12/10 | 31.66 | 0.633 |
| 2:45 AM 12/10 | 31.66 | 0.633 |
58.3' -
Stages above 58.3 feet result in flooding outside the levee. Top of levee.
| Date | Stage (ft) |
|---|---|
| Mar 27, 2023 | 52.24 |
| Feb 22, 2017 | 51.71 |
| Mar 4, 1983 | 51.26 |
| Apr 10, 2006 | 50.97 |
| Feb 25, 1980 | 50.57 |
| Jun 13, 1938 | 50.5 |
| Mar 18, 1986 | 49.65 |
| Mar 31, 2011 | 49.63 |
| Feb 11, 1998 | 49.16 |
| Apr 29, 1978 | 48.89 |
| Jan 6, 1965 | 48.66 |
| Jan 3, 1984 | 47.42 |
| Feb 16, 1973 | 46.12 |
| Jun 2, 2005 | 45.58 |
| Jun 5, 2019 | 45.31 |
| Feb 21, 2019 | 44.92 |
| Feb 26, 1979 | 43.16 |
| Mar 9, 1970 | 42.65 |
| Jan 3, 1966 | 42.61 |
| Mar 7, 2024 | 41.64 |
Data provided by the National Weather Service.
