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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 Mean Dailiy Stage/Flow Data |
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|
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
| 2025 | 44,261 | 67.99 | Feb 07, 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) |
| Today: Mostly sunny. Highs 47 to 55. North winds up to 10 mph. Tonight: Partly cloudy. Lows 35 to 41. North winds up to 10 mph. Monday: Mostly cloudy in the morning then becoming partly cloudy. Highs 46 to 56. North winds up to 10 mph. Monday Night: Partly cloudy. Lows around 37. Light winds. Tuesday: Mostly cloudy in the morning then becoming partly cloudy. Highs 48 to 54. Light winds. Tuesday Night: Mostly clear. Lows around 38. Wednesday: Mostly cloudy. Highs 49 to 55. Wednesday Night: Mostly cloudy with a chance of rain. Lows around 41. New Years Day: Cloudy with a chance of rain. Highs around 50. Thursday Night and Friday: Rain likely. Lows 41 to 47. Highs around 51. Friday Night and Saturday: Mostly cloudy with a chance of rain. Lows 40 to 45. Highs around 49. |
| 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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