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| Latitude: 38.36º N | Longitude: 121.34º W | Elevation: 5 Feet | |
| Location: Sacramento County in California | River Group: San Joaquin | ||
| Monitor Stage: 38.5 Feet | Flood Stage: 44.5 Feet |
| Observed Data Credit | |
 | Raw streamflow data is provided by the California Department of Water Resources. |
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 | |||
| 2020* | 6,052 | 37.90 | Mar 19, 2025 |
| 2024* | 13,400 | 42.98 | Mar 2, 2024 |
| 2023* | 73,600*** | 46.64*** | Jan 1, 2023 |
| 2022* | 7,790 | 38.99 | Dec 24, 2021 |
| 2021* | 3,000 | 32.00 | Jan 29, 2021 |
| Historical High Stage/Flow Events (Period of Record - Jan 1952 to Present)**** - Ranked by Flow | |||
| 2023* | 73,600*** | 46.64*** | Jan 1, 2023 |
| 1956* | 54,000 | 46.26 | Dec 23, 1955 |
| 2006* | 36,209 | 47.02 | Jan 01, 2006 |
| 1958 | 32,600 | 46.10 | Apr 03, 1958 |
| 1965* | 32,200 | 45.35 | Dec 23, 1964 |
| 1983* | 31,000 | 45.97 | Mar 14, 1983 |
| * Discharge affected by regulation or diversion ** Dataum changed from USED to NAVD88 on 06/20/2023. The difference is +2.46 ft and must be applied to all data before date to convert to NAVD88. *** Estimated from simulated data. Gauge data not reliable from Jan 1, 2023 through Jan 10, 2023. **** Additional high flow events occurred in 1986, 1997, & 1998 with only stage measured. Ranking by stage is not possible due to the dynamic nature of the channel. |
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| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ017) |
| Today: Rain in the morning, then rain showers and a slight chance of thunderstorms in the afternoon. Breezy. Highs 45 to 51. South winds 15 to 25 mph with gusts to around 35 mph. Tonight: Mostly cloudy. Rain showers likely and a slight chance of thunderstorms in the evening, then a slight chance of rain after midnight. Lows around 34. Southwest winds 10 to 20 mph. Gusts up to 30 mph in the evening. Wednesday: Mostly cloudy. A slight chance of rain in the morning, then a chance of rain in the afternoon. Highs 45 to 52. South winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Wednesday Night: Rain likely. Lows around 38. South winds 10 to 15 mph with gusts to around 25 mph. Thursday: Rain. Highs 45 to 51. South winds 10 to 20 mph with gusts to around 30 mph. Thursday Night: Partly cloudy with a chance of rain. Lows around 31. Friday: Partly cloudy. Highs around 49. Friday Night: Partly cloudy with a slight chance of rain. Lows around 37. Saturday: Mostly cloudy with a slight chance of rain. Highs 50 to 55. Saturday Night: Mostly cloudy with a chance of rain. Lows around 44. Sunday and Sunday Night: Rain. Highs 54 to 61. Lows 44 to 49. Monday: Rain. Highs 55 to 61. |
| Flood Impacts | |
| 46.5 Feet | At approximately 44,000 cfs, water exits the river upstream and downstream of Highway 99. Dillard Road is flooded from Highway 99 to Riley Road. Twin Cities Road is flooded from Hardesty Lane to Christensen Road. |
| 44.5 Feet | Flood stage. |
| 41.5 Feet | The Cosumnes River overflow channel begins to flow. |
| 38.5 Feet | Monitor Stage. |
| 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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