N F Solomon River at Portis
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
- Downstream 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) 07/14/2025 10:30 PM CDTRecord: 25.7 ftCATEGORY STAGE 
Major Flooding 25 ft Moderate Flooding 20 ft Minor Flooding 15 ft Action 13 ft Reliability of the Forecast:
NOTE: Forecasts are issued as needed during times of high water, but are not routinely available.
River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
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
- 25 - Widespread flooding occurs in low lying areas and over several county roads. The town of Portis and the bridge on Highway 281 are not threatened by flooding. A record flood of 28.5 feet occurred in July of 1951.
- 20 - There will be significant flooding over county road 362 and South 80th Avenue.
- 17.5 - The north approach to South 80th Avenue will flood and the flooding over county road 362 will worsen.
- 15 - The southeast bank overflows into agricultural and pasture lowlands. Water rises over county road 362.
Gauge Location
Recent Crests
| 1. | 9.07 ft | on 07-05-2023 |
| 2. | 12.84 ft | on 05-01-2022 |
| 3. | 13.92 ft | on 05-27-2021 |
| 4. | 13.01 ft | on 07-22-2020 |
| 5. | 18.76 ft | on 05-29-2019 |
Recent Crests
| 1. | 9.07 ft | on 07-05-2023 |
| 2. | 12.84 ft | on 05-01-2022 |
| 3. | 13.92 ft | on 05-27-2021 |
| 4. | 13.01 ft | on 07-22-2020 |
| 5. | 18.76 ft | on 05-29-2019 |
| 6. | 13.33 ft | on 05-30-2018 |
| 7. | 17.57 ft | on 10-04-2017 |
| 8. | 9.47 ft | on 09-06-2016 |
| 9. | 16.89 ft | on 08-06-2015 |
| 10. | 9.96 ft | on 06-07-2014 |
| 11. | 5.01 ft | on 06-18-2013 |
| 12. | 6.03 ft | on 04-17-2012 |
| 13. | 22.58 ft | on 06-02-2011 |
| 14. | 22.99 ft | on 06-21-2010 |
| 15. | 15.32 ft | on 06-15-2009 |
| 16. | 21.25 ft | on 10-23-2008 |
| 17. | 25.71 ft | on 05-25-2008 |
| 18. | 12.27 ft | on 08-02-2007 |
| 19. | 8.48 ft | on 08-18-2006 |
| 20. | 10.35 ft | on 06-10-2005 |
| 21. | 5.89 ft | on 07-09-2004 |
| 22. | 8.12 ft | on 09-12-2003 |
| 23. | 7.73 ft | on 05-28-2002 |
| 24. | 18.92 ft | on 05-30-2001 |
| 25. | 6.52 ft | on 07-24-2000 |
| 26. | 13.48 ft | on 05-05-1999 |
| 27. | 20.54 ft | on 07-27-1998 |
| 28. | 19.87 ft | on 11-17-1996 |
| 29. | 12.12 ft | on 08-05-1996 |
| 30. | 23.00 ft | on 05-29-1995 |
| 31. | 12.58 ft | on 03-05-1994 |
| 32. | 23.43 ft | on 07-21-1993 |
| 33. | 14.73 ft | on 06-06-1992 |
| 34. | 8.05 ft | on 05-27-1991 |
| 35. | 12.70 ft | on 05-16-1990 |
| 36. | 14.09 ft | on 07-19-1989 |
| 37. | 11.30 ft | on 08-12-1988 |
| 38. | 17.88 ft | on 04-15-1987 |
| 39. | 9.59 ft | on 08-05-1986 |
| 40. | 12.40 ft | on 05-15-1985 |
| 41. | 9.76 ft | on 04-23-1984 |
| 42. | 8.51 ft | on 05-20-1983 |
| 43. | 19.88 ft | on 05-13-1982 |
| 44. | 10.50 ft | on 07-03-1981 |
| 45. | 6.79 ft | on 04-05-1980 |
| 46. | 18.28 ft | on 03-23-1979 |
| 47. | 9.12 ft | on 07-23-1978 |
| 48. | 13.40 ft | on 09-05-1977 |
| 49. | 7.68 ft | on 05-23-1976 |
| 50. | 17.78 ft | on 06-22-1975 |
| 51. | 18.74 ft | on 10-11-1973 |
| 52. | 16.47 ft | on 09-29-1973 |
| 53. | 7.73 ft | on 05-24-1972 |
| 54. | 18.12 ft | on 09-02-1971 |
| 55. | 6.73 ft | on 06-13-1970 |
| 56. | 17.08 ft | on 05-22-1969 |
| 57. | 22.95 ft | on 08-16-1968 |
| 58. | 20.30 ft | on 07-29-1967 |
| 59. | 10.72 ft | on 02-09-1966 |
| 60. | 13.66 ft | on 05-25-1965 |
| 61. | 9.00 ft | on 08-21-1964 |
Historic Crests
| 1. | 25.71 ft | on 05-25-2008 |
| 2. | 23.43 ft | on 07-21-1993 |
| 3. | 23.00 ft | on 05-29-1995 |
| 4. | 22.99 ft | on 06-21-2010 |
| 5. | 22.95 ft | on 08-16-1968 |
Historic Crests
| 1. | 25.71 ft | on 05-25-2008 |
| 2. | 23.43 ft | on 07-21-1993 |
| 3. | 23.00 ft | on 05-29-1995 |
| 4. | 22.99 ft | on 06-21-2010 |
| 5. | 22.95 ft | on 08-16-1968 |
| 6. | 22.58 ft | on 06-02-2011 |
| 7. | 21.25 ft | on 10-23-2008 |
| 8. | 20.54 ft | on 07-27-1998 |
| 9. | 20.30 ft | on 07-29-1967 |
| 10. | 19.88 ft | on 05-13-1982 |
| 11. | 19.87 ft | on 11-17-1996 |
| 12. | 18.92 ft | on 05-30-2001 |
| 13. | 18.76 ft | on 05-29-2019 |
| 14. | 18.74 ft | on 10-11-1973 |
| 15. | 18.28 ft | on 03-23-1979 |
| 16. | 18.12 ft | on 09-02-1971 |
| 17. | 17.88 ft | on 04-15-1987 |
| 18. | 17.78 ft | on 06-22-1975 |
| 19. | 17.57 ft | on 10-04-2017 |
| 20. | 17.08 ft | on 05-22-1969 |
| 21. | 16.89 ft | on 08-06-2015 |
| 22. | 16.47 ft | on 09-29-1973 |
| 23. | 15.32 ft | on 06-15-2009 |
| 24. | 14.73 ft | on 06-06-1992 |
| 25. | 14.09 ft | on 07-19-1989 |
| 26. | 13.92 ft | on 05-27-2021 |
| 27. | 13.66 ft | on 05-25-1965 |
| 28. | 13.48 ft | on 05-05-1999 |
| 29. | 13.40 ft | on 09-05-1977 |
| 30. | 13.33 ft | on 05-30-2018 |
| 31. | 13.01 ft | on 07-22-2020 |
| 32. | 12.84 ft | on 05-01-2022 |
| 33. | 12.70 ft | on 05-16-1990 |
| 34. | 12.58 ft | on 03-05-1994 |
| 35. | 12.40 ft | on 05-15-1985 |
| 36. | 12.27 ft | on 08-02-2007 |
| 37. | 12.12 ft | on 08-05-1996 |
| 38. | 11.30 ft | on 08-12-1988 |
| 39. | 10.72 ft | on 02-09-1966 |
| 40. | 10.50 ft | on 07-03-1981 |
| 41. | 10.35 ft | on 06-10-2005 |
| 42. | 9.96 ft | on 06-07-2014 |
| 43. | 9.76 ft | on 04-23-1984 |
| 44. | 9.59 ft | on 08-05-1986 |
| 45. | 9.47 ft | on 09-06-2016 |
| 46. | 9.12 ft | on 07-23-1978 |
| 47. | 9.07 ft | on 07-05-2023 |
| 48. | 9.00 ft | on 08-21-1964 |
| 49. | 8.51 ft | on 05-20-1983 |
| 50. | 8.48 ft | on 08-18-2006 |
| 51. | 8.12 ft | on 09-12-2003 |
| 52. | 8.05 ft | on 05-27-1991 |
| 53. | 7.73 ft | on 05-24-1972 |
| 54. | 7.73 ft | on 05-28-2002 |
| 55. | 7.68 ft | on 05-23-1976 |
| 56. | 6.79 ft | on 04-05-1980 |
| 57. | 6.73 ft | on 06-13-1970 |
| 58. | 6.52 ft | on 07-24-2000 |
| 59. | 6.03 ft | on 04-17-2012 |
| 60. | 5.89 ft | on 07-09-2004 |
| 61. | 5.01 ft | on 06-18-2013 |
Unique Local Info
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.