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| Latitude: 37.68º N | Longitude: 121.27º W | Elevation: 35 Feet | |
| Location: San Joaquin County in California | River Group: San Joaquin | ||
| Monitor Stage: 24.5 Feet | Flood Stage: 29.0 Feet | Danger Stage: 29.5 Feet |
| Observed Data Credit | |
 | Raw streamflow data is provided by the US Geological Survey (USGS). |
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
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
| 2025* | 4,9400 | 12.97 | Mar 20, 2025 |
| 2024* | 10,300 | 18.12 | Mar 6, 2024 |
| 2023* | 34,400 | 29.82 | Mar 19, 2023 |
| 2022* | 2,600 | 10.83 | Dec 29, 2021 |
| 2021* | 2,470 | 10.76 | Jan 31, 2021 |
| Historical High Stage/Flow Events (Period of Record - Jul 1922 to Present) - Ranked by Flow | |||
| 1951* | 79,000 | 27.75 | Dec 09, 1950 |
| 1997* | 75,600 | 34.88 | Jan 05, 1997 |
| 1969* | 52,600 | 34.55 | Jan 27, 1969 |
| 1938* | 51,200 | 26.64 | Mar 16, 1938 |
| 1956* | 50,900 | 26.89 | Dec 25, 1955 |
| 1983* | 45,100 | 31.49 | Mar 07, 1983 |
| * Discharge affected by regulation or diversion | |||
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ019) |
| Tonight: Mostly clear in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows 36 to 42. Light winds. Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Widespread fog and locally dense in the morning. Highs around 60. Southeast winds up to 10 mph. Tuesday Night: Mostly cloudy with a slight chance of rain. Lows 41 to 47. Northwest winds up to 10 mph. Wednesday: Partly cloudy. Highs around 59. Northwest winds up to 10 mph. Wednesday Night: Mostly clear. Lows around 42. Northwest winds up to 10 mph. Thursday: Mostly cloudy. Highs around 58. Thursday Night: Partly cloudy. Lows around 43. Friday through Monday: Mostly cloudy. Highs around 62. Lows around 45. |
| Flood Impacts | |
| 37.29 Feet | Stages above 37.3 feet results in flooding outside the levees. Top of levee. |
| 29.6 Feet | Homes along east bank of river on Airport Court in Manteca experience flooding. |
| 26.0 Feet | Severe seepage occurs outside the levees. The area covered by seepage will increase as the river stage rises. |
| 24.5 Feet | Monitor Stage - water reaches the toe of levee. |
| 21.0 Feet | Seepage begins into crop area outside of levees. |
| Product Disclaimer |
This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS Sacramento Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only. |
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