Susan River at Susanville
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
- Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 06/27/2025 11:45 AM PDTOfficial Forecast (FCST) 06/27/2025 7:50 AM PDTRecord: 18.8 ftCATEGORY STAGE 
Major Flooding 14 ft Moderate Flooding 13 ft Minor Flooding 12 ft Action 10.5 ft Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions
NOTE: Forecasts are issued routinely year-round.
Stage may be affected by ice during winter months.
Reported historic crests have been estimated using recent ratings due to previous channel, location and/or datum changes. CADWR observed crests can be found at: http://cdec.water.ca.gov/staInfo.html Please also see Additional Information tab at the bottom of this page.
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
- 18.5 - Record flooding from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Extensive damage to homes...businesses...schools...roads... bridges and water systems throughout Honey Lake Valley. Transportation in and out of valley cut off as US Highway 395 and Highway 36 are flooded or washed out. Extensive power...phone...and rural water system impacts. Like record flood of January 24 1970.
- 18 - Near record flooding from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Extensive damage to homes...businesses...schools...roads...bridges and water systems in flood plain throughout Honey Lake Valley. Transportation in and out of Honey Lake Valley is cut off as US Highway 395 and Highway 36 are flooded or washed out. Extensive power...phone and rural water system impacts. Only exceeded by flood of January 24 1970.
- 17.5 - Near record flooding from Susanville to Honey Lake...including Susanville...Johnstonville...Leavitt Lake...Standish and Litchfield areas. Severe damage to homes...businesses...schools... roadways...bridges and water systems in flood plain throughout Honey Lake Valley. Transportation in valley difficult as US Highway 395 and Highway 36 are flooded or washed out. Extensive power...phone and rural water system impacts. Slightly higher than floods of February 17 1986 and January 2 1997.
Gauge Info
| Coordinates | 40.4136, -120.664 |
| RFC | CNRFC |
| State | CA |
| WFO | REV |
| County | Lassen |
| Data Provider(s) | |
| CA Dept. of Water Resources | CA Dept. of Water Resources |
| USGS | 10356500 |
Gauge Location
Recent Crests
| 1. | 11.19 ft | on 11-23-2024 | (P) |
| 2. | 11.03 ft | on 12-31-2022 | (P) |
| 3. | 10.27 ft | on 10-25-2021 | (P) |
| 4. | 10.00 ft | on 03-22-2018 | (P) |
| 5. | 15.18 ft | on 02-10-2017 | (P) |
Recent Crests
| 1. | 11.19 ft | on 11-23-2024 | (P) |
| 2. | 11.03 ft | on 12-31-2022 | (P) |
| 3. | 10.27 ft | on 10-25-2021 | (P) |
| 4. | 10.00 ft | on 03-22-2018 | (P) |
| 5. | 15.18 ft | on 02-10-2017 | (P) |
| 6. | 13.30 ft | on 01-09-2017 | (P) |
| 7. | 13.29 ft | on 12-02-2012 | (P) |
| 8. | 13.89 ft | on 12-31-2005 | (P) |
| 9. | 17.57 ft | on 01-02-1997 | (P) |
| 10. | 13.18 ft | on 03-11-1989 | (P) |
| 11. | 17.52 ft | on 02-17-1986 | (P) |
| 12. | 10.04 ft | on 11-24-1983 | (P) |
| 13. | 13.43 ft | on 03-13-1983 | (P) |
| 14. | 16.51 ft | on 11-23-1981 | (P) |
| 15. | 15.25 ft | on 01-13-1980 | (P) |
| 16. | 14.15 ft | on 03-30-1974 | (P) |
| 17. | 12.72 ft | on 03-26-1971 | (P) |
| 18. | 18.83 ft | on 01-24-1970 | |
| 19. | 14.13 ft | on 01-21-1969 | (P) |
| 20. | 10.10 ft | on 01-29-1967 | (P) |
| 21. | 17.48 ft | on 12-22-1964 | (P) |
| 22. | 15.48 ft | on 01-31-1963 | (P) |
| 23. | 10.98 ft | on 02-08-1960 | (P) |
| 24. | 14.35 ft | on 02-24-1958 | (P) |
| 25. | 10.77 ft | on 02-24-1957 | (P) |
| 26. | 14.81 ft | on 12-23-1955 | (P) |
| 27. | 12.14 ft | on 01-09-1953 | (P) |
| 28. | 11.35 ft | on 04-04-1952 | (P) |
| 29. | 11.03 ft | on 11-19-1950 | (P) |
| 30. | 11.98 ft | on 02-22-1904 | (P) |
| 31. | 12.19 ft | on 03-30-1903 | (P) |
Historic Crests
| 1. | 18.83 ft | on 01-24-1970 | |
| 2. | 17.57 ft | on 01-02-1997 | (P) |
| 3. | 17.52 ft | on 02-17-1986 | (P) |
| 4. | 17.48 ft | on 12-22-1964 | (P) |
| 5. | 16.51 ft | on 11-23-1981 | (P) |
Historic Crests
| 1. | 18.83 ft | on 01-24-1970 | |
| 2. | 17.57 ft | on 01-02-1997 | (P) |
| 3. | 17.52 ft | on 02-17-1986 | (P) |
| 4. | 17.48 ft | on 12-22-1964 | (P) |
| 5. | 16.51 ft | on 11-23-1981 | (P) |
| 6. | 15.48 ft | on 01-31-1963 | (P) |
| 7. | 15.25 ft | on 01-13-1980 | (P) |
| 8. | 15.18 ft | on 02-10-2017 | (P) |
| 9. | 14.81 ft | on 12-23-1955 | (P) |
| 10. | 14.35 ft | on 02-24-1958 | (P) |
| 11. | 14.15 ft | on 03-30-1974 | (P) |
| 12. | 14.13 ft | on 01-21-1969 | (P) |
| 13. | 13.89 ft | on 12-31-2005 | (P) |
| 14. | 13.43 ft | on 03-13-1983 | (P) |
| 15. | 13.30 ft | on 01-09-2017 | (P) |
| 16. | 13.29 ft | on 12-02-2012 | (P) |
| 17. | 13.18 ft | on 03-11-1989 | (P) |
| 18. | 12.72 ft | on 03-26-1971 | (P) |
| 19. | 12.19 ft | on 03-30-1903 | (P) |
| 20. | 12.14 ft | on 01-09-1953 | (P) |
| 21. | 11.98 ft | on 02-22-1904 | (P) |
| 22. | 11.35 ft | on 04-04-1952 | (P) |
| 23. | 11.19 ft | on 11-23-2024 | (P) |
| 24. | 11.03 ft | on 12-31-2022 | (P) |
| 25. | 11.03 ft | on 11-19-1950 | (P) |
| 26. | 10.98 ft | on 02-08-1960 | (P) |
| 27. | 10.77 ft | on 02-24-1957 | (P) |
| 28. | 10.27 ft | on 10-25-2021 | (P) |
| 29. | 10.10 ft | on 01-29-1967 | (P) |
| 30. | 10.04 ft | on 11-24-1983 | (P) |
| 31. | 10.00 ft | on 03-22-2018 | (P) |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 4214.30 ft |
| moderate Flooding | 4213.30 ft |
| minor Flooding | 4212.30 ft |
| action | 4210.80 ft |
| Latest Value | 4204.85 ft |
| Gauge Zero | 4200.30 ft |
Unique Local Info
Reported historic crest estimates have been normalized using CADWR Rating 6 (as of 12/2019) due to previous channel, location and/or datum changes. For observed crests please go to:http://cdec.water.ca.gov/jspplot/jspPlotServlet.jsp?sensor_no=12008&end=&geom=small&interval=30&cookies=cdec01
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.
Resources
Hydrologic Resource Links
- River Forecast Centers
- Text Products
- Past Precipitation
- Forecast Precipitation
- California-Nevada River Forecast Center Homepage
- USGS Real-Time Hydrologic Data for Nevada
- USGS Real-Time Hydrologic Data for California
- NWS Climate Prediction Center: Outlook Maps, Graphs & Tables
- NV NRCS Snow Program
- Inundation Mapping Locations
- California Data Exchange
- Guide to NWS Hydrologic Information on the Web
Additional Resource Links
- NWS Precipitation and River Forecasting
- Area Hydrographs
- NWS Headquarters, Silver Spring MD
- NWS Western Region Headquarters, Salt Lake City UT
- Western Regional Climate Center, Reno NV
- NWS Forecast Office Homepage, Reno NV
- NOAA Snow Information Center
- Flood Smart Web Page
- FEMA Flood Insurance Program
- FEMA Flood Insurance Rate Maps Interface