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| Latitude: 37.68º N | Longitude: 121.27º W | Elevation: 35 Feet | |||
| Location: San Joaquin County in California | Bulletin Group: San Joaquin | River Group: San Joaquin | |||
| Action/Monitor: 24.5 Feet | Minor Flood: 29.0 Feet | Moderate Flood: 32.0 Feet | Major Flood: 37.3 Feet |
| Observed Data Credit | |
 | Raw streamflow data is provided by the US Geological Survey (USGS). |
Historical Mean Daily Stage/Flow Data |
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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 |
| 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. |
| Official 7 Day National Weather Service Forecast (CAZ019) |
| Today: Rain showers early in the morning, then a chance of rain showers in the late morning and afternoon. A slight chance of thunderstorms late in the afternoon. Highs 52 to 60. South winds 10 to 15 mph. Gusts up to 35 mph decreasing to 25 mph in the afternoon. Tonight: Mostly cloudy. A slight chance of rain showers in the evening. Lows 42 to 48. South winds up to 10 mph. Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Highs 53 to 61. Light winds. Tuesday Night: Mostly clear. Lows 43 to 49. Light winds. Wednesday: Partly cloudy. Highs 54 to 62. Light winds. Wednesday Night: Mostly cloudy with a chance of rain showers. Lows 46 to 52. Thursday: Mostly cloudy with a chance of rain showers. Highs 54 to 60. Thursday Night: Mostly cloudy with a chance of rain showers. Lows 43 to 49. Friday: Partly cloudy. Highs 56 to 62. Friday Night through Sunday: Mostly clear. Lows 40 to 47. Highs 57 to 63. |
| 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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