Tuolumne River at Modesto
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Upstream gauge unavailableDownstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 06/20/2025 8:00 AM PDTOfficial Forecast (FCST) 06/19/2025 8:20 AM PDTRecord: 71.2 ftLow Threshold: 0 ftCATEGORY STAGE 
Major Flooding 67 ft Moderate Flooding 66 ft Minor Flooding 55 ft Action 50.5 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely year-round.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 67 - Extensive flooding occurs. Flows in excess of 40,000 cfs could cause extensive damage to residential, industrial and commercial development in Modesto downstream of gage.
- 55 - This is channel capacity through downtown Modesto.
Gauge Info
| Coordinates | 37.6271, -120.984 |
| RFC | CNRFC |
| State | CA |
| WFO | STO |
| County | Stanislaus |
| Data Provider(s) | |
| USGS | 11290000 |
| State of California / Department of Water Resources | DWR CDEC ID: MOD |
Gauge Location
Recent Crests
| 1. | 48.86 ft | on 03-03-2024 |
| 2. | 54.61 ft | on 03-21-2023 |
| 3. | 54.69 ft | on 03-16-2023 |
| 4. | 41.32 ft | on 04-17-2022 |
| 5. | 42.45 ft | on 04-16-2021 |
Recent Crests
| 1. | 48.86 ft | on 03-03-2024 |
| 2. | 54.61 ft | on 03-21-2023 |
| 3. | 54.69 ft | on 03-16-2023 |
| 4. | 41.32 ft | on 04-17-2022 |
| 5. | 42.45 ft | on 04-16-2021 |
| 6. | 40.39 ft | on 12-04-2019 |
| 7. | 50.66 ft | on 03-07-2019 |
| 8. | 47.26 ft | on 04-07-2018 |
| 9. | 58.90 ft | on 02-22-2017 |
| 10. | 43.86 ft | on 03-15-2016 |
| 11. | 54.45 ft | on 04-06-2006 |
| 12. | 51.26 ft | on 01-09-2006 |
| 13. | 51.09 ft | on 01-04-2006 |
| 14. | 51.48 ft | on 02-28-2000 |
| 15. | 71.21 ft | on 01-04-1997 |
| 16. | 56.56 ft | on 03-12-1995 |
| 17. | 42.20 ft | on 02-09-1994 |
| 18. | 49.24 ft | on 01-18-1993 |
| 19. | 40.90 ft | on 10-16-1990 |
| 20. | 41.40 ft | on 03-03-1989 |
| 21. | 41.60 ft | on 01-18-1988 |
| 22. | 47.80 ft | on 03-06-1987 |
| 23. | 55.20 ft | on 03-16-1986 |
| 24. | 47.50 ft | on 02-09-1985 |
| 25. | 54.20 ft | on 01-06-1984 |
| 26. | 57.30 ft | on 03-14-1983 |
| 27. | 56.17 ft | on 04-01-1982 |
| 28. | 47.30 ft | on 01-30-1981 |
| 29. | 54.40 ft | on 01-18-1980 |
| 30. | 53.60 ft | on 02-02-1979 |
| 31. | 50.50 ft | on 05-07-1978 |
| 32. | 49.55 ft | on 02-12-1973 |
| 33. | 52.65 ft | on 01-22-1970 |
| 34. | 65.42 ft | on 01-27-1969 |
| 35. | 55.35 ft | on 01-02-1965 |
| 36. | 66.43 ft | on 12-25-1955 |
| 37. | 69.19 ft | on 12-09-1950 |
Historic Crests
| 1. | 71.21 ft | on 01-04-1997 |
| 2. | 69.19 ft | on 12-09-1950 |
| 3. | 66.43 ft | on 12-25-1955 |
| 4. | 65.42 ft | on 01-27-1969 |
| 5. | 58.90 ft | on 02-22-2017 |
Historic Crests
| 1. | 71.21 ft | on 01-04-1997 |
| 2. | 69.19 ft | on 12-09-1950 |
| 3. | 66.43 ft | on 12-25-1955 |
| 4. | 65.42 ft | on 01-27-1969 |
| 5. | 58.90 ft | on 02-22-2017 |
| 6. | 57.30 ft | on 03-14-1983 |
| 7. | 56.56 ft | on 03-12-1995 |
| 8. | 56.17 ft | on 04-01-1982 |
| 9. | 55.35 ft | on 01-02-1965 |
| 10. | 55.20 ft | on 03-16-1986 |
| 11. | 54.69 ft | on 03-16-2023 |
| 12. | 54.61 ft | on 03-21-2023 |
| 13. | 54.45 ft | on 04-06-2006 |
| 14. | 54.40 ft | on 01-18-1980 |
| 15. | 54.20 ft | on 01-06-1984 |
| 16. | 53.60 ft | on 02-02-1979 |
| 17. | 52.65 ft | on 01-22-1970 |
| 18. | 51.48 ft | on 02-28-2000 |
| 19. | 51.26 ft | on 01-09-2006 |
| 20. | 51.09 ft | on 01-04-2006 |
| 21. | 50.66 ft | on 03-07-2019 |
| 22. | 50.50 ft | on 05-07-1978 |
| 23. | 49.55 ft | on 02-12-1973 |
| 24. | 49.24 ft | on 01-18-1993 |
| 25. | 48.86 ft | on 03-03-2024 |
| 26. | 47.80 ft | on 03-06-1987 |
| 27. | 47.50 ft | on 02-09-1985 |
| 28. | 47.30 ft | on 01-30-1981 |
| 29. | 47.26 ft | on 04-07-2018 |
| 30. | 43.86 ft | on 03-15-2016 |
| 31. | 42.45 ft | on 04-16-2021 |
| 32. | 42.20 ft | on 02-09-1994 |
| 33. | 41.60 ft | on 01-18-1988 |
| 34. | 41.40 ft | on 03-03-1989 |
| 35. | 41.32 ft | on 04-17-2022 |
| 36. | 40.90 ft | on 10-16-1990 |
| 37. | 40.39 ft | on 12-04-2019 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | 127.00 ft |
| moderate Flooding | 126.00 ft |
| minor Flooding | 115.00 ft |
| action | 110.50 ft |
| Latest Value | 96.67 ft |
| Gauge Zero | 60.00 ft |
Probability Information
No Images Available
Collaborative Agencies
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.