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| Latitude: 39.34º N | Longitude: 122.02º W | Elevation: 76 Feet | |||
| Location: Colusa County in California | Bulletin Group: Upper Sacramento | River Group: Upper Sacramento | |||
| Action/Monitor: 76.2 Feet | Minor Flood: 83.8 Feet | Moderate Flood: 87.6 Feet | Major Flood: 88.6 Feet |
| Observed Data Credit | |
 | Raw streamflow data is provided by the California Department of Water Resources. |
Historical Mean Daily Stage/Flow Data |
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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 |
| 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. |
| Official 7 Day National Weather Service Forecast (CAZ016) |
| Tonight: Mostly clear. Patchy fog in the late evening and overnight. Lows 38 to 44. Light winds. Friday: Patchy fog in the morning. Mostly sunny. Highs 56 to 64. Light winds. Friday Night: Mostly clear. Patchy fog after midnight. Lows around 42. Light winds. Saturday: Partly cloudy in the morning then clearing. Patchy fog in the morning. Highs around 60. Light winds. Saturday Night: Mostly clear. Patchy fog. Lows around 44. Light winds. Sunday: Mostly cloudy. Patchy fog. Highs around 58. Sunday Night: Partly cloudy. Patchy fog. Lows around 44. Monday: Partly cloudy. Highs 59 to 65. Monday Night: Partly cloudy. Patchy fog. Lows 42 to 48. Tuesday through Wednesday: Mostly cloudy. Patchy fog. Highs 57 to 65. Lows 42 to 49. Wednesday Night: Mostly clear. Patchy fog. Lows 44 to 49. Thursday: Partly cloudy. Patchy fog. Highs 59 to 65. |
| 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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