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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: Areas of frost in the morning. Mostly sunny. Highs around 52. North winds up to 10 mph in the morning becoming light. Gusts up to 25 mph. Tonight: Mostly clear. Lows around 35. Light winds. Saturday: Areas of frost and patchy dense fog in the morning. Mostly cloudy. Highs around 53. North winds up to 10 mph. Saturday Night: Mostly cloudy. Patchy fog after midnight. Lows around 36. Light winds. Sunday: Patchy fog in the morning. Mostly cloudy. Highs around 52. Light winds. Sunday Night: Mostly clear. Patchy fog. Lows around 37. Monday: Partly cloudy. Patchy fog. Highs around 53. Monday Night: Mostly clear. Patchy fog. Lows around 40. Tuesday: Partly cloudy. Patchy fog. Highs 53 to 59. Tuesday Night: Mostly clear. Patchy fog. Lows 40 to 46. Wednesday: Partly cloudy. Patchy fog. Highs 56 to 62. Wednesday Night and Thursday: Mostly clear. Patchy fog. Lows 41 to 48. Highs 58 to 64. |
| 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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