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| Latitude: 39.24º N | Longitude: 121.99º W | Elevation: 62 Feet | |
| Location: Colusa County in California | River Group: Upper Sacramento | ||
| Monitor Stage: 60.9 Feet | Flood Stage: 70.1 Feet | Danger Stage: 71.1 Feet |
| Observed Data Credit | |
 | Raw streamflow data is provided by the California Department of Water Resources. |
Historical Stage/Flow Data |
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|
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
| 2025 | 46,800 | 68.18 | Feb 6, 2025 |
| 2024 | 34,400 | 67.27 | Feb 21, 2024 |
| 2023 | 26,500 | 66.60 | Mar 16, 2023 |
| 2022 | 0**** | -- | -- |
| 2021 | 0**** | -- | -- |
| Historical High Stage/Flow Events (Period of Record - January 1911 to Present) - Ranked by Stage | |||
| 1940 | -- | 70.60* | Mar 1, 1940 |
| 1983 | 81,500 | 68.96** | Mar 4, 1983 |
| 1997 | 71,000 | 68.85 | Jan 3, 1997 |
| 1958 | 83,600 | 68.80*** | Feb 21, 1958 |
| 1965 | 77,400 | 68.50 | Jan 7, 1965 |
| 1943 | -- | 68.30 | Jan 24, 1943 |
| * Peak prior to regulation by Shasta Dam ** Peak after regulation by Shasta Dam *** Peak also occurred on Feb 26th **** No weir flow observed during the entire water year ***** Datum changed from USED to NAVD88 on 10/01/2019. The difference is -0.9 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: Rain showers and a slight chance of thunderstorms. Colder. Lows 41 to 48. Southeast winds 10 to 15 mph with gusts to around 30 mph. Sunday: Rain showers and a slight chance of thunderstorms in the morning, then rain showers and a chance of thunderstorms in the afternoon. Highs 54 to 60. South winds 10 to 15 mph with gusts to around 30 mph. Sunday Night: Mostly cloudy. A chance of rain in the evening, then a slight chance of rain after midnight. Lows 42 to 48. Southeast winds up to 10 mph. Gusts up to 20 mph in the evening. Monday: Mostly cloudy in the morning then clearing. Highs 61 to 66. Light winds. Monday Night: Mostly clear. Lows around 45. Light winds. Tuesday: Mostly sunny. Highs 66 to 71. Tuesday Night: Mostly clear. Lows around 46. Wednesday and Wednesday Night: Partly cloudy. Highs 66 to 72. Lows 43 to 49. Thursday and Thursday Night: Clear. Highs around 70. Lows 42 to 49. Friday: Sunny. Highs around 75. Friday Night and Saturday: Mostly clear. Lows 45 to 51. Highs 73 to 79. |
| Flood Impacts | |
| 73.9 Feet | Stages above 73.9 feet result in major flooding. Top of levee. |
| 60.9 Feet | Colusa Weir crest elevation. Overflow begins into the Sutter Bypass. |
| 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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