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| Latitude: 39.34º N | Longitude: 122.02º W | Elevation: 76 Feet | |
| Location: Colusa County in California | River Group: Upper Sacramento | ||
| Monitor Stage: 76.2 Feet | Flood Stage: 83.8 Feet | Danger Stage: 84.8 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 | |||
| 2025* | 10,516 | 79.57 | Feb 07, 2025 |
| 2024* | 3,940 | 78.05 | Feb 21, 2024 |
| 2023* | 4,380 | 78.18 | Mar 16, 2023 |
| 2022* | 0**** | -- | -- |
| 2021* | 0**** | -- | -- |
| Historical High Stage/Flow Events (Period of Record - Jan 1931 to Present)** - Ranked by Flow | |||
| 1942 | 53,900 | 83.80*** | Feb 7, 1942 |
| 1958* | 45,300 | 84.65*** | Feb 20, 1958 |
| 1940* | 45,300 | 84.69*** | Feb 28, 1940 |
| 1941* | 42,200 | 84.44*** | Feb 12, 1941 |
| 1983* | 35,300 | 83.71*** | Mar 3, 1983 |
| 1938* | 33,500 | 83.52*** | Dec 12, 1937 |
| * Discharge affected by regulation or diversion. ** Peak flow before regulation by Shasta Dam began in 1943 *** Old datum. The difference is -2.85 ft and must be applied to data to convert from NGVD29 to NAVD88 **** No weir flow observed during the entire water year ***** Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.6 ft and must be applied to all data before date to convert to NAVD88 |
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| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ016) |
| Tonight: Clear in the evening then becoming mostly cloudy. Lows 43 to 49. Light winds. Friday: Mostly cloudy in the morning then becoming partly cloudy. Highs around 67. Light winds. Friday Night: Mostly clear. Lows 41 to 47. Light winds. Saturday: Mostly sunny. Highs around 66. Light winds. Saturday Night: Mostly clear. Lows around 45. Light winds. Sunday: Mostly cloudy. Highs around 62. Sunday Night: Mostly cloudy with a chance of rain. Lows 45 to 51. Monday and Monday Night: Mostly cloudy with a slight chance of rain. Highs around 61. Lows 40 to 50. Tuesday: Partly cloudy with a slight chance of rain. Highs around 56. Tuesday Night and Wednesday: Mostly cloudy with a chance of rain. Lows around 40. Highs around 55. Wednesday Night: Partly cloudy with a slight chance of rain. Lows around 40. Thursday: Mostly cloudy. Highs around 59. |
| Flood Impacts | |
| 88.6 Feet | Stages above 89.2 feet result in major flooding of areas outside the levees. Top of levee. |
| 76.2 Feet | Moulton Weir crest elevation. Overflow begins into butte sink. River Road is flooded and closed. |
| 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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