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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) |
| Tonight: Mostly cloudy. Rain likely early in the evening, then a chance of rain in the late evening and early morning. A slight chance of rain late in the night. Lows 42 to 47. Southeast winds up to 10 mph. Gusts up to 25 mph in the evening. Thursday: Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs 58 to 64. North winds up to 10 mph. Thursday Night: Clear. Patchy fog after midnight. Lows 38 to 44. Northwest winds up to 10 mph. Friday: Patchy fog in the morning. Mostly sunny. Highs around 62. Light winds. Friday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows around 43. Light winds. Saturday: Mostly cloudy. Highs 55 to 61. Saturday Night: Cloudy with a chance of rain. Lows around 46. Sunday: Mostly cloudy with a chance of rain. Highs 54 to 61. Sunday Night: Rain. Lows around 45. washingtons birthday through Tuesday: Rain. Highs around 52. Lows 40 to 45. Tuesday Night: Mostly cloudy with rain likely. Lows around 37. Wednesday: Mostly cloudy with a chance of rain. Highs around 53. |
| 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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