Shadehill Reservoir
No watches, warnings or advisories are in effect for this area.
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.
Traces and Thresholds Click to turn on/off display
Observed (OBS) 07/15/2025 1:15 PM MDTRecord: 2297.9 ftCATEGORY STAGE 
Action 2272 ft Reliability of the Forecast:
NOTE: Forecasts are not available. Only observed stages are available for this point.
River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.
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
- 2318 - Dam crest elevation.
- 2297.9 - Near record flooding with similar flooding to what occurred in 1950 before the reservoir was completed.
- 2290.83 - Reservoir elevation on April 17, 2009.
Gauge Info
| Coordinates | 45.7533, -102.204 |
| RFC | MBRFC |
| State | SD |
| WFO | UNR |
| County | Perkins |
| Data Provider(s) | |
| US Bureau of Reclamtion | Bureau of Reclamation Shadehill Reservoir |
| U.S. Army Corps of Engineers | U.S. Army Corps of Engineers Website |
Gauge Location
Recent Crests
| 1. | 2271.16 ft | on 10-02-2023 |
| 2. | 2267.54 ft | on 07-18-2022 |
| 3. | 2269.26 ft | on 10-01-2020 |
| 4. | 2272.02 ft | on 04-10-2020 |
| 5. | 2283.98 ft | on 03-29-2019 |
Recent Crests
| 1. | 2271.16 ft | on 10-02-2023 |
| 2. | 2267.54 ft | on 07-18-2022 |
| 3. | 2269.26 ft | on 10-01-2020 |
| 4. | 2272.02 ft | on 04-10-2020 |
| 5. | 2283.98 ft | on 03-29-2019 |
| 6. | 2272.24 ft | on 05-24-2018 |
| 7. | 2266.31 ft | on 05-01-2017 |
| 8. | 2270.40 ft | on 10-01-2015 |
| 9. | 2271.91 ft | on 10-05-2014 |
| 10. | 2274.92 ft | on 03-15-2014 |
| 11. | 2270.58 ft | on 09-24-2013 |
| 12. | 2272.05 ft | on 10-07-2011 |
| 13. | 2276.65 ft | on 03-22-2011 |
| 14. | 2273.29 ft | on 05-26-2010 |
| 15. | 2290.83 ft | on 04-17-2009 |
| 16. | 2263.60 ft | on 06-27-2008 |
| 17. | 2263.15 ft | on 10-01-2006 |
| 18. | 2265.84 ft | on 05-15-2006 |
| 19. | 2267.55 ft | on 10-01-2004 |
| 20. | 2270.34 ft | on 04-05-2004 |
| 21. | 2264.21 ft | on 05-18-2003 |
| 22. | 2268.89 ft | on 10-01-2001 |
| 23. | 2273.54 ft | on 03-24-2001 |
| 24. | 2269.16 ft | on 10-01-1999 |
| 25. | 2272.69 ft | on 05-19-1999 |
| 26. | 2271.95 ft | on 07-11-1998 |
| 27. | 2280.01 ft | on 03-24-1997 |
| 28. | 2274.26 ft | on 05-29-1996 |
| 29. | 2275.83 ft | on 05-15-1995 |
| 30. | 2273.61 ft | on 03-19-1994 |
| 31. | 2275.30 ft | on 07-29-1993 |
| 32. | 2265.70 ft | on 08-09-1992 |
| 33. | 2265.89 ft | on 12-03-1990 |
| 34. | 2269.49 ft | on 05-07-1990 |
| 35. | 2267.87 ft | on 07-23-1989 |
| 36. | 2268.89 ft | on 10-01-1988 |
| 37. | 2273.86 ft | on 04-09-1987 |
| 38. | 2273.78 ft | on 05-11-1986 |
| 39. | 2271.63 ft | on 04-02-1985 |
| 40. | 2271.77 ft | on 06-22-1984 |
| 41. | 2271.93 ft | on 06-29-1983 |
| 42. | 2275.66 ft | on 05-23-1982 |
| 43. | 2260.90 ft | on 10-23-1980 |
| 44. | 2268.31 ft | on 10-01-1979 |
| 45. | 2273.10 ft | on 04-22-1979 |
| 46. | 2282.42 ft | on 04-02-1978 |
| 47. | 2269.72 ft | on 07-12-1977 |
| 48. | 2271.62 ft | on 07-09-1976 |
| 49. | 2273.35 ft | on 05-17-1975 |
| 50. | 2268.71 ft | on 10-21-1973 |
| 51. | 2272.76 ft | on 04-28-1973 |
| 52. | 2276.37 ft | on 03-15-1972 |
| 53. | 2275.01 ft | on 04-01-1971 |
| 54. | 2272.11 ft | on 06-26-1970 |
| 55. | 2274.14 ft | on 04-05-1969 |
| 56. | 2266.58 ft | on 10-01-1967 |
| 57. | 2274.29 ft | on 06-16-1967 |
| 58. | 2272.16 ft | on 07-20-1966 |
| 59. | 2274.24 ft | on 05-28-1965 |
| 60. | 2268.25 ft | on 07-17-1964 |
| 61. | 2270.29 ft | on 07-05-1963 |
| 62. | 2268.17 ft | on 08-17-1962 |
| 63. | 2271.04 ft | on 10-01-1960 |
| 64. | 2273.33 ft | on 06-16-1960 |
| 65. | 2273.13 ft | on 03-25-1959 |
| 66. | 2272.55 ft | on 06-18-1958 |
| 67. | 2273.39 ft | on 06-27-1957 |
| 68. | 2272.63 ft | on 03-28-1956 |
| 69. | 2271.88 ft | on 07-09-1955 |
| 70. | 2272.86 ft | on 04-10-1954 |
| 71. | 2276.24 ft | on 06-22-1953 |
| 72. | 2297.86 ft | on 04-10-1952 |
Historic Crests
| 1. | 2297.86 ft | on 04-10-1952 |
| 2. | 2290.83 ft | on 04-17-2009 |
| 3. | 2283.98 ft | on 03-29-2019 |
| 4. | 2282.42 ft | on 04-02-1978 |
| 5. | 2280.01 ft | on 03-24-1997 |
Historic Crests
| 1. | 2297.86 ft | on 04-10-1952 |
| 2. | 2290.83 ft | on 04-17-2009 |
| 3. | 2283.98 ft | on 03-29-2019 |
| 4. | 2282.42 ft | on 04-02-1978 |
| 5. | 2280.01 ft | on 03-24-1997 |
| 6. | 2276.65 ft | on 03-22-2011 |
| 7. | 2276.37 ft | on 03-15-1972 |
| 8. | 2276.24 ft | on 06-22-1953 |
| 9. | 2275.83 ft | on 05-15-1995 |
| 10. | 2275.66 ft | on 05-23-1982 |
| 11. | 2275.30 ft | on 07-29-1993 |
| 12. | 2275.01 ft | on 04-01-1971 |
| 13. | 2274.92 ft | on 03-15-2014 |
| 14. | 2274.29 ft | on 06-16-1967 |
| 15. | 2274.26 ft | on 05-29-1996 |
| 16. | 2274.24 ft | on 05-28-1965 |
| 17. | 2274.14 ft | on 04-05-1969 |
| 18. | 2273.86 ft | on 04-09-1987 |
| 19. | 2273.78 ft | on 05-11-1986 |
| 20. | 2273.61 ft | on 03-19-1994 |
| 21. | 2273.54 ft | on 03-24-2001 |
| 22. | 2273.39 ft | on 06-27-1957 |
| 23. | 2273.35 ft | on 05-17-1975 |
| 24. | 2273.33 ft | on 06-16-1960 |
| 25. | 2273.29 ft | on 05-26-2010 |
| 26. | 2273.13 ft | on 03-25-1959 |
| 27. | 2273.10 ft | on 04-22-1979 |
| 28. | 2272.86 ft | on 04-10-1954 |
| 29. | 2272.76 ft | on 04-28-1973 |
| 30. | 2272.69 ft | on 05-19-1999 |
| 31. | 2272.63 ft | on 03-28-1956 |
| 32. | 2272.55 ft | on 06-18-1958 |
| 33. | 2272.24 ft | on 05-24-2018 |
| 34. | 2272.16 ft | on 07-20-1966 |
| 35. | 2272.11 ft | on 06-26-1970 |
| 36. | 2272.05 ft | on 10-07-2011 |
| 37. | 2272.02 ft | on 04-10-2020 |
| 38. | 2271.95 ft | on 07-11-1998 |
| 39. | 2271.93 ft | on 06-29-1983 |
| 40. | 2271.91 ft | on 10-05-2014 |
| 41. | 2271.88 ft | on 07-09-1955 |
| 42. | 2271.77 ft | on 06-22-1984 |
| 43. | 2271.63 ft | on 04-02-1985 |
| 44. | 2271.62 ft | on 07-09-1976 |
| 45. | 2271.16 ft | on 10-02-2023 |
| 46. | 2271.04 ft | on 10-01-1960 |
| 47. | 2270.58 ft | on 09-24-2013 |
| 48. | 2270.40 ft | on 10-01-2015 |
| 49. | 2270.34 ft | on 04-05-2004 |
| 50. | 2270.29 ft | on 07-05-1963 |
| 51. | 2269.72 ft | on 07-12-1977 |
| 52. | 2269.49 ft | on 05-07-1990 |
| 53. | 2269.26 ft | on 10-01-2020 |
| 54. | 2269.16 ft | on 10-01-1999 |
| 55. | 2268.89 ft | on 10-01-1988 |
| 56. | 2268.89 ft | on 10-01-2001 |
| 57. | 2268.71 ft | on 10-21-1973 |
| 58. | 2268.31 ft | on 10-01-1979 |
| 59. | 2268.25 ft | on 07-17-1964 |
| 60. | 2268.17 ft | on 08-17-1962 |
| 61. | 2267.87 ft | on 07-23-1989 |
| 62. | 2267.55 ft | on 10-01-2004 |
| 63. | 2267.54 ft | on 07-18-2022 |
| 64. | 2266.58 ft | on 10-01-1967 |
| 65. | 2266.31 ft | on 05-01-2017 |
| 66. | 2265.89 ft | on 12-03-1990 |
| 67. | 2265.84 ft | on 05-15-2006 |
| 68. | 2265.70 ft | on 08-09-1992 |
| 69. | 2264.21 ft | on 05-18-2003 |
| 70. | 2263.60 ft | on 06-27-2008 |
| 71. | 2263.15 ft | on 10-01-2006 |
| 72. | 2260.90 ft | on 10-23-1980 |
Vertical Datum Table
| type | NGVD29 |
|---|---|
| major Flooding | N/A |
| moderate Flooding | N/A |
| minor Flooding | N/A |
| action | 4472.00 ft |
| Latest Value | 4466.40 ft |
| Gauge Zero | 2200.00 ft |
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
Additional Resource Links
WFO Information
Weather Forecast Office
Rapid City
300 East Signal Drive
Rapid City, SD 57701-3800
Official Homepage