| SAN JOAQUIN RIVER - MOSSDALE (MOSC1) | ||
| Latitude: 37.79º N | Longitude: 121.31º W | Elevation: 32 Feet |
| Location: San Joaquin County in CA | ||
| River Group: San Joaquin | ||
| Forecast Issued: | Jan 07 2026 at 2:16 PM PST | Next Issuance: | Jan 08 2026 at 9:00 AM PST |
| Action/ Monitor: 19.5 Ft | Minor Flood: 28.5 Ft | Moderate Flood: 32.1 Ft | Major Flood: 33.1 Ft |
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Historical Stage/Flow Data |
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Note: Water Year 2025 is currently showing peak daily mean values. These will be updated to instantaneous peaks in the coming months. |
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Water Year
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Peak Discharge (cfs)
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Stage (feet)
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Date
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| Most Recent 5 Years | |||
| 2025 | -- | 6.60 | Mar 21, 2025 |
| 2024 | -- | 11.32 | Mar 6, 2024 |
| 2023 | -- | 20.52 | Mar 24, 2023 |
| 2022 | -- | 7.51 | Oct 24, 2021 |
| 2021 | -- | 6.74 | Jun 27, 2021 |
| Historical High Stage/Flow Events (Period of Record - Jan 1920 to Present)* - Ranked by Stage | |||
| 1951 | -- | 24.40** | Dec 10, 1950 |
| 1997 | -- | 23.24** | Jan 9, 1997 |
| 2017 | -- | 21.70 | Feb 23, 2017 |
| 1969 | -- | 20.31** | Jan 27, 1969 |
| 1967 | -- | 18.10** | Jan 24, 1967 |
| 2006 | -- | 17.19** | Apr 13, 2006 |
| * No data was available Sep 2006 to Apr 2007 ** Datum changed from NGVD29 to NAVD88 on 10/01/2006. The difference is +2.38 ft and must be applied to all data before date to convert to NAVD88 |
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| Location Photographs | ||
| ESRI™ Locator Map |
| Flood Impacts | |
| 33.1 Feet | Stages above 33.1 feet result in flooding outside of the levees. Top of levee. |
| 16.39 Feet | Historically Mossdale Trailer Park evacuates. |
| 15.4 Feet | Mossdale Trailer Park is threatened by the high water. Mossdale Trailer Park is on the south side of the river inside the levee both upstream and downstream of the gage. |