Rivers in California
Mormon Slough at Bellota
Below flood stage
3.78ftStage
Observed Sun, Sep 27, 9:00 AM PDT
- Flood stage
- 22.00 ft
- Forecast crest
- 3.79 ftSun, Sep 27, 6:00 PM PDT
- Record crest
- 21.80 ft2023
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 31.90 ft |
| Moderate flood | 30.90 ft |
| Minor flood | 22.00 ft |
| Action | 16.00 ft |
- 31.90 ftTop of Levee right bank levee. Water will overflow toward Bellota and Highway 26.
- 23.00 ftDanger Stage
- 22.00 ftFlood Stage
- 16.00 ftMonitor Stage - Bike trail within lower Calaveras River channel flooded.
- 14.20 ftUOP research within the Calaveras River channel is affected by water levels.
- 9.00 ftWater rises out of the pilot channel but not yet on the levee slopes.
Crest history
34 crests on NOAA’s list since 1998.
| # | Date | Stage |
|---|---|---|
| 1 | January 16, 2023 | 21.80 ft |
| 2 | February 3, 1998 | 18.48 ft |
| 3 | April 4, 2006 | 18.40 ft |
| 4 | April 6, 2006 | 18.28 ft |
| 5 | February 7, 1998 | 17.84 ft |
| 6 | February 10, 2017 | 17.34 ft |
| 7 | March 24, 2011 | 17.22 ft |
| 8 | March 10, 2023 | 16.43 ft |
| 9 | March 6, 2019 | 15.14 ft |
| 10 | February 9, 1999 | 14.64 ft |
| 11 | January 2, 2006 | 13.83 ft |
| 12 | February 23, 2000 | 11.61 ft |
| 13 | February 18, 2026 | 11.54 ft |
| 14 | March 24, 2005 | 11.36 ft |
| 15 | March 20, 2011 | 11.30 ft |
| 16 | February 26, 2004 | 10.36 ft |
| 17 | January 18, 2016 | 9.84 ft |
| 18 | March 7, 2016 | 9.65 ft |
| 19 | November 26, 2017 | 9.62 ft |
| 20 | December 12, 2014 | 9.39 ft |
| 21 | February 14, 2025 | 9.29 ft |
| 22 | October 25, 2021 | 9.21 ft |
| 23 | January 22, 2010 | 9.03 ft |
| 24 | January 3, 2002 | 8.38 ft |
| 25 | April 13, 2012 | 7.96 ft |
Most recent crests
- February 18, 2026: 11.54 ft
- February 14, 2025: 9.29 ft
- March 3, 2024: 7.43 ft
- March 10, 2023: 16.43 ft
- January 16, 2023: 21.80 ft
- October 25, 2021: 9.21 ft
- January 28, 2021: 6.78 ft
- March 17, 2020: 5.17 ft
- March 6, 2019: 15.14 ft
- November 26, 2017: 9.62 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the California Nevada River Forecast Center. Forecasts are issued routinely year-round.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.