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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: | May 18 2021 at 7:44 AM PDT | Next Issuance: | May 19 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) | |||
1940 |
-- |
70.60* |
Mar 1, 1940 |
1983 |
81,500 |
68.96** |
Mar 4, 1983 |
1997 |
71,000 |
68.85 |
Jan 3, 1997 |
1958 |
83,600 |
68.80*** |
Feb 21, 1958 |
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 sunny. Highs 82 to 88. Southeast winds around 10 mph. Gusts up to 20 mph in the afternoon. Tonight: Clear. Lows around 51. Southeast winds 10 to 15 mph with gusts to around 25 mph. Wednesday: Mostly sunny. Highs 75 to 80. Southeast winds around 10 mph shifting to the west in the afternoon. Gusts up to 20 mph. Wednesday Night: Mostly clear. Lows around 48. Southwest winds 10 to 15 mph shifting to the northwest after midnight. Gusts up to 25 mph. Thursday: Mostly sunny. A slight chance of rain showers in the afternoon. Highs 68 to 74. North winds 10 to 15 mph with gusts to around 30 mph. Thursday Night: Mostly clear. Lows around 50. Friday: Mostly sunny. Highs 74 to 80. Friday Night through Saturday Night: Mostly clear. Lows 50 to 56. Highs 74 to 82. Sunday: Mostly sunny. Highs 82 to 88. Sunday Night and Monday: Clear. Lows 54 to 60. Highs 82 to 92. |
| 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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