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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: | Apr 01 2023 at 8:10 AM PDT | Next Issuance: | Apr 02 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: Mostly cloudy. A slight chance of rain showers early in the afternoon. A slight chance of showers and thunderstorms late in the afternoon. Highs 57 to 63. South winds 10 to 15 mph. Tonight: Partly cloudy. A chance of rain showers in the evening. Lows around 35. Northwest winds 10 to 15 mph with gusts to around 30 mph. Monday: Mostly sunny. Highs 54 to 59. Northwest winds 10 to 20 mph. Gusts up to 30 mph in the afternoon. Monday Night: Clear. Lows 32 to 38. Northwest winds 10 to 15 mph with gusts to around 25 mph. Tuesday: Areas of frost in the morning. Mostly sunny. Highs 56 to 61. Northwest winds 10 to 15 mph. Tuesday Night: Partly cloudy. Lows around 37. Wednesday: Mostly sunny. Highs around 62. Wednesday Night and Thursday: Partly cloudy. Lows around 41. Highs around 64. Thursday Night: Mostly cloudy with a slight chance of rain showers. Lows around 47. Friday: Partly cloudy. Highs around 69. Friday Night and Saturday: Mostly clear. Lows around 50. Highs 69 to 77. |
| 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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