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| Latitude: 38.05º N | Longitude: 121.01º W | Elevation: 130 Feet | |||
| Location: San Joaquin County in California | Bulletin Group: San Joaquin | River Group: North San Joaquin | |||
| Action/Monitor: 16.0 Feet | Minor Flood: 22.0 Feet | Moderate Flood: 30.9 Feet | Major Flood: 31.9 Feet |
| Observed Data Credit | |
 | Raw streamflow data is provided by the US Army Corps of Engineers. |
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* | 904 | 6.89 | Feb 15, 2025 |
| 2024* | 1,100 | 7.44 | Mar 3, 2024 |
| 2023* | 11,400 | 21.80 | Jan 16, 2023 |
| 2022* | 1,950 | 9.21 | Oct 25, 2021 |
| 2021* | 839 | 6.78 | Jan 28, 2021 |
| Historical High Stage/Flow Events (Period of Record - Dec 1997 to Present) - Ranked by Flow | |||
| 2023* | 11,400 | 21.80 | Jan 16, 2023 |
| 1998* | 9,395 | 18.48 | Feb 3, 1998 |
| 2006* | 9,328 | 18.40 | Apr 4, 2006 |
| 2011* | 8,354 | 17.22 | Mar 24, 2011 |
| * Discharge affected by regulation or diversion | |||
| Location Photographs | ||
| ESRI™ Locator Map |
| Flood Impacts | |
| 31.9 Feet | Top of Levee right bank levee. Water will overflow toward Bellota and Highway 26. |
| 23.0 Feet | Danger Stage |
| 22.0 Feet | Flood Stage |
| 16.0 Feet | Monitor Stage - Bike trail within lower Calaveras River channel flooded. |
| 14.2 Feet | UOP research within the Calaveras River channel is affected by water levels. |
| 9.0 Feet | Water rises out of the pilot channel but not yet on the levee slopes. |
| Official 7 Day National Weather Service Forecast (CAZ019) |
| Today: Cloudy. Widespread fog and locally dense in the morning. Patchy fog in the afternoon. A slight chance of rain in the late morning and early afternoon. A chance of rain late in the afternoon. Highs around 51. Light winds. Tonight: Rain. Patchy fog. Lows around 48. Southeast winds up to 10 mph with gusts to around 20 mph. New Years Day: Patchy fog in the morning. Rain in the morning, then rain showers likely and a slight chance of thunderstorms in the afternoon. Highs 55 to 60. Southeast winds 10 to 15 mph with gusts to around 25 mph. Thursday Night: Mostly cloudy with a chance of rain. Lows 48 to 54. Southeast winds 10 to 15 mph. Friday: Mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs 54 to 60. Southeast winds 10 to 20 mph. Friday Night: Rain, breezy. Lows 49 to 55. Saturday: Rain showers and a slight chance of thunderstorms. Highs 52 to 58. Saturday Night: Rain showers and a slight chance of thunderstorms. Lows 46 to 51. Sunday: Rain showers likely and a slight chance of thunderstorms. Highs 50 to 55. Sunday Night: Rain likely. Lows 44 to 49. Monday: Rain likely. Highs around 52. Monday Night and Tuesday: Mostly cloudy with a chance of rain. Lows 43 to 48. Highs around 52. |
| 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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