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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: | Dec 07 2021 at 1:24 PM PST | Next Issuance: | Dec 08 2021 at 9:00 AM PST |
| 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) |
| Today: Mostly cloudy. Patchy fog through the day. A slight chance of rain showers late in the afternoon. Cooler. Highs around 51. Southeast winds up to 10 mph. Tonight: Cloudy. A slight chance of rain showers in the evening, then a chance of rain showers after midnight. Patchy fog through the night. Lows 41 to 47. Southeast winds up to 10 mph shifting to the northwest after midnight. Thursday: Patchy fog in the morning. Mostly cloudy with a chance of rain showers in the morning, then sunny in the afternoon. Highs 50 to 56. Northwest winds 10 to 20 mph. Thursday Night: Mostly clear. Colder. Lows 32 to 38. Northwest winds 10 to 15 mph. Friday: Areas of frost in the morning. Mostly sunny. Highs 49 to 55. North winds around 10 mph with gusts to around 20 mph. Friday Night: Mostly clear. Areas of frost and patchy fog. Lows 31 to 37. Saturday: Mostly sunny. Areas of frost and patchy fog. Highs around 51. Saturday Night: Mostly cloudy with a chance of rain showers. Lows around 41. Sunday and Sunday Night: Rain showers likely. Highs around 48. Lows around 43. Monday: Rain showers. Highs around 49. Monday Night and Tuesday: Rain showers. Lows 37 to 43. Highs around 49. |
| 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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