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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: | Oct 17 2021 at 7:32 AM PDT | Next Issuance: | Oct 18 2021 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 | |||
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 |
2016 |
23,033 |
67.14 |
Mar 14, 2016 |
| 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) |
| Tonight: Rain showers in the evening, then a chance of rain showers after midnight. Breezy, colder. Lows 40 to 46. Southeast winds 10 to 25 mph. Gusts up to 40 mph in the evening. Monday: Mostly sunny. A slight chance of rain showers in the morning. Cooler. Highs around 61. Southeast winds 10 to 15 mph. Monday Night: Mostly clear. Lows 35 to 43. East winds up to 10 mph shifting to the north after midnight. Tuesday: Mostly sunny. Highs around 64. Northwest winds up to 10 mph shifting to the southeast in the afternoon. Tuesday Night: Mostly cloudy. A chance of rain showers in the evening, then rain showers after midnight. Lows around 48. Southeast winds 10 to 15 mph with gusts to around 25 mph. Wednesday: Rain showers. Highs around 58. Wednesday Night: Mostly cloudy with a chance of rain showers. Lows 47 to 53. Thursday: Mostly cloudy with a chance of rain showers. Highs 61 to 67. Thursday Night: Cloudy with rain showers likely. Lows around 55. Friday: Mostly cloudy with rain showers likely. Highs 61 to 67. Friday Night: Mostly cloudy with a slight chance of rain showers. Colder. Lows 44 to 50. Saturday: Mostly cloudy with a chance of rain showers. Highs around 60. Saturday Night: Rain showers likely. Lows around 50. Sunday: Rain showers likely. Highs around 60. |
| 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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