| SACRAMENTO RIVER - COLUSA WEIR (CLAC1) | ||
| Latitude: 39.24º N | Longitude: 121.99º W | Elevation: 62 Feet |
| Location: Colusa County in CA | ||
| River Group: Upper Sacramento | ||
| Forecast Issued: | Mar 23 2025 at 8:52 AM PDT | Next Issuance: | Mar 24 2025 at 9:00 AM PDT |
| Action/ Monitor: 60.9 Ft | Minor Flood: 70.1 Ft | Moderate Flood: 72.9 Ft | Major Flood: 73.9 Ft |
Prev. Point | Next Point | Tabular |
Back to Points | Back to Home | Ensemble Fcst |
  |
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 |
| Flood Impacts | |
| 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. |