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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) |
| Tonight: Mostly cloudy. A slight chance of rain showers after midnight. A chance of rain showers late in the night. Lows 56 to 62. South winds 10 to 20 mph. Gusts up to 20 mph increasing to 40 mph after midnight. Thursday: Rain showers. Windy. Highs 62 to 69. Southeast winds 15 to 30 mph with gusts to around 45 mph shifting to the south 15 to 20 mph with gusts to around 35 mph in the afternoon. Thursday Night: Rain showers and a slight chance of thunderstorms in the evening, then rain showers likely after midnight. Lows 51 to 57. South winds up to 10 mph. Gusts up to 25 mph in the evening. Friday: Mostly cloudy with a chance of rain showers. Highs 58 to 65. North winds up to 10 mph. Friday Night: Partly cloudy with a slight chance of rain showers. Lows 47 to 53. Northwest winds up to 10 mph. Saturday: Mostly cloudy with a slight chance of rain showers. Highs 58 to 64. Saturday Night: Mostly cloudy with a chance of rain showers. Lows 48 to 54. Sunday through Monday: Mostly cloudy with a chance of rain showers. Highs 55 to 64. Lows 46 to 54. Monday Night: Partly cloudy with a slight chance of rain showers. Lows 41 to 47. Tuesday: Partly cloudy. Highs 53 to 60. Tuesday Night: Mostly clear. Lows 38 to 44. Wednesday: Partly cloudy with a slight chance of rain showers. Highs 54 to 59. |
| 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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