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| Latitude: 39.24º N | Longitude: 121.99º W | Elevation: 62 Feet | |
| Location: Colusa County in California | River Group: Upper Sacramento | ||
| Issuance Time: | Mar 20 2023 at 2:04 PM PDT | Next Issuance: | Mar 21 2023 at 9:00 AM PDT |
| Monitor Stage: 60.9 Feet | Flood Stage: 70.1 Feet | Danger Stage: 71.1 Feet |
| Colusa Weir Location - Sacramento River Channel Stage/Flow (Estimated) |
| Observed Data Credit | |
 | Raw streamflow data is provided by the California Department of Water Resources. |
Historical Stage/Flow Data |
|||
|
Water Year
|
Peak Discharge (cfs)
|
Stage (feet)
|
Date
|
| Most Recent 5 Years | |||
2021 |
0**** |
-- |
-- |
2020 |
0**** |
-- |
-- |
2019 |
44,300 |
68.74 |
Feb 16, 2019 |
2018 |
5,430 |
64.80 |
Apr 8, 2018 |
2017 |
43,300 |
68.68 |
Feb 19, 2017 |
| Historical High Stage/Flow Events (Period of Record - January 1911 to Present) - Ranked by Flow | |||
1940 |
-- |
70.60* |
Mar 1, 1940 |
1958 |
83,600 |
68.80*** |
Feb 21, 1958 |
1983 |
81,500 |
68.96** |
Mar 4, 1983 |
1997 |
71,000 |
68.85 |
Jan 3, 1997 |
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 | |||
| Location Photographs | ||
| ESRI™ Locator Map |
| Official 7 Day National Weather Service Forecast (CAZ016) |
| Today: Rain showers. Highs 50 to 58. North winds 10 to 15 mph with gusts to around 25 mph. Tonight: Mostly cloudy. Rain showers likely in the evening, then a chance of rain showers after midnight. Lows around 45. East winds 10 to 15 mph. Gusts up to 30 mph decreasing to 20 mph after midnight. Wednesday: Mostly cloudy with a chance of rain showers. Highs 55 to 60. Northeast winds up to 10 mph shifting to the south around 10 mph in the afternoon. Wednesday Night: Mostly cloudy. A chance of rain showers in the evening, then a slight chance of rain showers after midnight. Lows 41 to 47. Southeast winds up to 10 mph. Thursday: Mostly cloudy. A slight chance of rain showers in the morning, then a chance of rain showers in the afternoon. Highs 56 to 62. South winds up to 15 mph. Thursday Night: Mostly cloudy with a chance of rain showers. Colder. Lows 34 to 40. Friday: Mostly sunny. Highs around 57. Friday Night: Mostly clear. Lows around 35. Saturday and Saturday Night: Clear. Highs 54 to 59. Lows around 35. Sunday: Mostly sunny. Highs 55 to 60. Sunday Night: Mostly cloudy with a slight chance of rain showers. Lows around 39. Monday: Mostly cloudy with a chance of rain showers. Highs around 53. |
| Impacts - E19 Information | |
| 60.9 Feet | Colusa Weir crest elevation. Overflow begins into the Sutter Bypass. |
| 73.9 Feet | Stages above 73.9 feet result in major flooding. Top of levee. |
| 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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