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| Latitude: 39.24º N | Longitude: 121.99º W | Elevation: 62 Feet | |||
| Location: Colusa County in California | Bulletin Group: Upper Sacramento | River Group: Upper Sacramento | |||
| Monitor Stage: 60.9 Feet | Flood Stage: 70.1 Feet | Danger Stage: 71.1 Feet |
| 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 | |||
2023 |
26,500 |
66.60 |
Mar 16, 2023 |
2022 |
0**** |
-- |
-- |
2021 |
0**** |
-- |
-- |
2020 |
0**** |
-- |
-- |
2019 |
44,300 |
68.74 |
Feb 16, 2019 |
| 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 |
| Impacts - E19 Information | |
| 73.9 Feet | Stages above 73.9 feet result in major flooding. Top of levee. |
| 60.9 Feet | Colusa Weir crest elevation. Overflow begins into the Sutter Bypass. |
| Official 7 Day National Weather Service Forecast (CAZ016) |
| Tonight: Clear. Lows 63 to 73. North winds up to 10 mph. Sunday: Mostly sunny. Highs around 98. Northwest winds up to 10 mph. Sunday Night: Mostly clear. Lows 62 to 71. Light winds. Monday: Mostly sunny. Highs around 97. Northwest winds up to 10 mph. Monday Night: Clear. Lows 58 to 67. West winds up to 10 mph in the evening becoming light. Tuesday: Sunny. Highs around 91. Tuesday Night: Clear. Lows 53 to 62. Wednesday: Sunny. Highs around 87. Wednesday Night through Thursday Night: Partly cloudy. Lows 54 to 64. Highs around 86. Friday: Partly cloudy. Highs around 81. Friday Night: Mostly clear. Lows 55 to 61. Saturday: Sunny. Highs around 84. |
| 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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